Any parcel developed for residential use shall adhere to the maximum density allowed, in accordance with the developable land calculation (Section 5.4) and the below density factors. Maximum density shall be calculated by applying the density factory (below) to the developable land area.

In residential subdivisions of four lots or less, or for a first division of land not meeting the definition of a subdivision, the Commission, by Special Permit, may modify the density requirements. An applicant must demonstrate compliance with Section 7.1C of these Regulations. This provision shall not apply to resubdivisions.

In residential resubdivisions of four lots or less, the Commission, by Special Permit, may also modify the calculated number of allowable lots, after application of the density Regulations, to be rounded up to the next integer value when said calculation is within 0.10 of this next integer value. An applicant must demonstrate compliance with Section 7.1C of these Regulations.

Promote the goals and objectives of the Town of Avon's Plan of Conservation and Development (POCD), including the Design Guidelines and Recommendations for the Avon Village Center Zone;

Maintain and enhance Village Center-style character through architectural design, building orientation, street design and layout, pedestrian and nonmotorized vehicular accommodations, landscaping and the provision of public open space;

Establishing controls that will facilitate development while protecting the public interest and promoting a range and balance of land uses;

Protect, preserve and promote the unique historic and environmental character of the Avon Village Center area;

Provide for uses and activities that complement and reinforce those uses and activities existing in areas adjacent to the Avon Village Center, thereby facilitating integrated physical design and encouraging interaction among activities;

Promote the development of housing types and forms that meet the needs of smaller households and families;

Promote low-impact development (LID) principles, techniques and best management practices;

Provide a system of roads and streets that connects with the surrounding transportation network in a cohesive manner, accommodates pedestrians and nonmotorized vehicles; and

Be consistent with the principles, objectives and guidelines of G.S. § 8-2j of the Connecticut General Statutes, as amended and generally known as the Village Districts Act.

Intent. A mixed-use development plan is intended to provide for a multistep process that permits development flexibility within the context of a unified general master plan. It is also intended to define mixed use development projects in terms of physical design, architectural character, public amenities, site improvements, traffic improvements, mitigation actions, categories of uses and the general location of buildings. MUDP applications that provide a balanced variety of different uses compatible with the intent of the AVC Zone are strongly encouraged.

Application Requirements. The MUDP application shall meet the following plan for the entirety of all property owned by the applicant or its successors in interest, as of the effective date of these Regulations, within the proposed Avon Village Center Zone. The MUDP shall provide:

Review Criteria. The Commission shall determine that the MUDP is in conformity with the purpose of the Avon Village Center Zone, the intent of the MUDP process, and the MUDP requirements under this section. As part of the MUDP application review process, and in addition to the design professionals retained under the authority of G.S. § 8-2j as amended, the Commission may engage qualified peer reviewers to review all MUDP applications and subsequent ACDD applications. The applicant shall be required to pay for all peer review costs associated with the assessment of submitted data and analyses, in accordance with Ordinance #55 of the Town of Avon, effective March 31, 2010.[1]

All new construction and substantial reconstruction activities for buildings existing as of the adoption of the Avon Village Center Zone that are visible from public roadways and that have not previously received Special Permit and/or Site Plan approval from the Commission shall be reviewed by an architectural or design professional designated by the Commission. Those reconstruction activities that constitute substantial reconstruction shall be determined by the Town's Director of Planning. All such activities shall comply with the general design guidelines and principles contained in G.S. § 8-2j, as amended, as well as the specific design guidelines provided in herein.

In all cases, the determination of compliance with said design guidelines and approval of construction and modification activities shall be governed by the Regulations and conditions contained in G.S. § 8-2j, as amended.

The principles of Village Center Design are meant to apply to those building facades and spaces that are subject to public view from public areas and in public use. Interior spaces and building code compliance are not the subject of these guidelines but may be considerations under these design standards. Overall principles include:

Public Gathering Space: Any MUDP must include open space available for public use and congregation and shall be composed of a mix of appropriate landscape and hardscape elements. The design and selected location for this open space must be appropriately and effectively integrated into the overall site design for the MUDP, with particular attention paid to its connection to pedestrian circulation systems and elements.

Utilities: All utility lines serving new construction shall be buried underground in any MUDP.

Parking: In general, the standards for the required number of parking spaces for each land use as established under Section 5.11 of these Zoning Regulations shall apply in the Avon Village Center Zone. However, it is recognized that the Avon Village Center Zone encompasses a unique area of the Town that is envisioned as a mixed-use development, many of which uses may have shared and complementary off-street parking needs. Therefore, in cases where the required number of parking spaces for a particular land use under Section 5.11 is greater than an applicable standard for the number of parking spaces required for such use according to data from the Institute of Transportation Engineers (ITE) or the Urban Land Institute (ULI), the Commission in its sole discretion may allow the use of the lesser parking space requirement standard. The applicant must provide sufficient evidence indicating that such parking reduction will neither create a shortage of parking spaces nor create ancillary negative traffic circulation impacts.

Residential Uses: Total aggregate development within the AVC Zone shall adhere generally to the following guidelines:

Streets: Streets shall be laid out in a manner that promotes safe and logical traffic circulation. Unless specifically approved by the Commission, the use of cul-de-sacs and other types of dead-end streets should be avoided in all ACDDs that have any nonresidential land uses. Within ACDDs consisting entirely of residential uses, cul-de-sacs and other types of dead-end streets may be permitted at the Commission's discretion.

Pedestrian Accessibility and Connectivity: All MUDP developments must provide:

Traffic and Circulation: All MUDP developments shall consider the following traffic and circulation elements in their design and operations:

Low Impact Design: All MUDP developments shall implement low impact development (LID) and best management practices wherever and whenever feasible. When considering issues of overall site design, stormwater drainage and infrastructure design, developers within a MUDP shall first consider LID best management practices (BMPs). If such BMPs are shown to be inappropriate or infeasible for use in a particular area or areas of the MUDP, conventional development methods may be considered and utilized.

Environmental Impact. Any environmental impacts or potential environmental impacts identified as part of a report submitted by the applicant per this section, or any environmental impacts or potential environmental impacts identified through the peer review process, must be addressed to the satisfaction of the Commission prior to the start of construction.

Earth Removal and Filling. In general, all earth removal, grading and filling activities shall be conducted in a manner such that these activities will result in no net change in the amount of earth material brought into or removed from within the MUDP. Within each individual ACDD, the applicant shall demonstrate a balance of cuts and fills, unless waived by the Commission. At the Commission's discretion, removal of earth material from the MUDP may be permitted if it can be demonstrated by the applicant that doing so would produce a better overall development design.

Construction Phasing. The intent of the AVC Zone Regulations is to encourage cohesive mixed-use developments with a balance of uses designed in a walkable, Village Center style. As such, any AVC Zone should be developed in a balanced manner throughout its development phasing cycle. The phasing plan for any MUDP must consider the need for a balanced approach for the development of individual uses. It is the Town's intention and desire that any MUDP must be composed of a mix of land uses during all phases of its development, not just as an end product. Therefore, the following sequence of requirements for pro rating the development of specific uses shall apply to all MUDPs:

Modifications to the mix of uses in an ACDD shall not consist of more than 20% of floor area changing from either a commercial use to a residential use or from a residential use to a commercial use.

Modifications to the gross floor area of all uses in an ACDD shall not consist of a change of more than 20% in the amount of gross floor area in the ACDD.

Modifications to the height (in feet) of any structure in an ACDD shall not change by more than 25% of the original base height of the subject structure.

Modifications in the amount of usable open space shall not reduce the allocation of open space with the Site Plan without compensation elsewhere within the development areas approved under the MUDP.

Modifications to roads and accessways shall not eliminate the direct traffic connection that links all ACDDs within the MUDP designed as a "main street."

In addition, any changes proposed to the individual ACDD plans that would clearly result in a significant alteration to the character, function and/or the composition of the MUDP, as determined by the Commission, shall require the submission of a new Special Permit application. The new Special Permit application must follow the same process as described in Section 7.1C of these Regulations, and in conformance with the requirements of G.S. § 8-3c, as amended.

Lot size between one and three acres; and

Lot must have frontage on Avonwood Road.

Residential development that qualifies as a "set-aside development" as defined in Connecticut General Statutes § 8-30g(a)(6).

Accessory uses customarily associated with, or incidental to, any permitted use in the Avonwood Road HOD.

Density. In order to meet the purposes of these Regulations and to increase the supply of affordable housing in the Town of Avon, the maximum number of dwelling units shall be 25 units per net buildable acre and a maximum density of 64 units per applicable property.

Dimensional Requirements. All buildings in any Avonwood Road HOD shall comply with the following dimensional requirements, which requirements shall supersede the dimensional standards otherwise noted in these Regulations:

Parking. All Avonwood Road HOD developments shall provide a minimum of one parking space for each one-bedroom dwelling unit and two parking spaces for each two-bedroom dwelling unit.

Utilities. All utilities shall be underground, or as mandated by the utility provider.

Landscaping. The following landscape design standards shall apply:

Lighting. Exterior lighting shall be provided and maintained within the Avonwood Road HOD to ensure proper illumination of parking areas, building entrances, walkways, and wherever else they may be required for the safety of vehicular and pedestrian traffic. All exterior lights shall be low-level, and glare from any light sources shall be shielded from dwelling unit interiors, public highways, and abutting properties so that light falling outside the Avonwood Road HOD shall be of low intensity. There shall be no light trespass off of any property in the Avonwood Road HOD that creates any hazardous or objectionable situation for abutting users or motor vehicles in the area, as evidenced by a photometric plan.

Signage. All signage in the Avonwood Road HOD shall comply with the applicable Town of Avon signage Regulations for design and permitting. All signage the complies with the aforementioned requirements shall be permitted in the Avonwood Road HOD without the need for additional approvals.

Set-aside apartment homes shall be of a construction quality that is comparable to a baseline specification schedule for market-rate apartment homes within the community.

Calculation of the maximum monthly payment for set-aside apartment homes, so as to satisfy Connecticut General Statutes § 8-30g, shall utilize the median income data as published by the U.S. Department of Housing and Urban Development in effect on the day a lease is executed.

A set-aside apartment home rented in compliance with Connecticut General Statutes § 8-30g shall be occupied only as a principal residence. Sub-leasing of a set-aside apartment home shall be prohibited.

Notice of availability of the set-aside apartment homes shall be provided by advertising such availability in the real estate section of a newspaper of general circulation in the Town of Avon, and through the procedures outlined in the affirmative fair housing marketing section in the Affordability Plan.

The 40-year affordability period shall be calculated separately for each set-aside apartment home in an Avonwood Road HOD development, and the period shall begin on the date, as stated in the lease, of occupancy of the apartment home.

A third-party non-conflicted firm shall provide the required certifications to the Town of Avon regarding the eligibility of occupants for every set-aside unit at the time of its initial occupancy, the renewal of any lease, or the initial rental or move-in of a set-aside tenant, in accordance with the applicable requirements of Connecticut General Statutes § 8-30g.

The owner or Administrator (as defined in the Affordability Plan) shall provide an annual certification to the Town of Avon, which shall be notarized, that the property is being operated in accordance with the Affordability Plan and the applicable requirements of Connecticut General Statutes § 8-30g.

Residential structures accessory to the principal use.

Recreation, maintenance, utility, and other structures accessory to the principal use.

Any proposal for wind or solar must obtain a special permit.

Quarrying.

Lighting poles 10 feet or more in height. All lights shall be designed to prevent excessive glare off the property.

Air conditioning, heating, or ventilating equipment that projects above the plane of any roof surface, other than accessory chimneys.

Emergency work necessary to protect life or property.

Activities for which a complete zoning application was filed prior to the effective date of the Ridgeline Protection Overlay Zone Regulations, provided that such application was approved and the approval remains in effect.

Selective timbering.

Passive recreation.

Building additions that cumulatively do not exceed a building footprint of 1,500 square feet in area, measured from the date of adoption of this amendment, when added to homes which were in existence as of the effective date of this regulation. Clear-cutting shall be allowed without Special Permit only in the area required to accommodate the actual footprint of the proposed addition plus an area extending 15 feet from the outside walls of the addition. This exemption shall not apply to any homes which have been constructed as part of a prior subdivision approval granted by the Commission which contained conditions placing limits on tree clearing and/or requiring the preservation of trees.

Maintenance of property which may include tree trimming and/or the cutting of a select number of trees to maintain views which were in effect as of the date of the adoption of this regulation. In an effort to document existing views, a property owner may present photographic evidence or survey data to the Office of the Town Planner. This information along with any other data which a property owner may choose to provide shall be kept on file in the Office of the Town Planner. This documentation may be provided at the option of the property owner.

That adequate safeguards have been taken to minimize the visual impact of proposed activities as viewed from public highways, public parks, or other areas accessible to the general public. Visual impacts may include, but are not limited to, unnatural gaps, cuts, projections, or other obviously artificial alterations of existing natural tree lines, ridgelines, prominent topographic features, or rock formations; the use of materials which by their color, reflectiveness, finish, size, or orientation disrupt the natural or historic character of a ridgeline; the size, height, shape, and location of buildings; the height, intensity, coverage, and glare from proposed lights. Such safeguards may include, but are not limited to:

The Commission may require that clear-cutting occur in a staggered or other pattern that reduces the visual impact of such cutting and may further require that clear-cutting be staged over a period of time to allow for regrowth of remaining vegetation. Additionally, the Commission may regulate the location, and require the relocation, of proposed buildings to reduce visual impact. Whenever possible, development and clear-cutting within 75 feet of any ridgeline, as defined in these Ridgeline Protection Overlay Zone Regulations, shall be avoided. The Commission may also require the installation of flags, balloons, or other on-site markers prior to a decision on any application in order to allow evaluation of visual impacts as seen from various vantage points.

That the viability of the area as a wildlife resource (habitat, breeding ground, foraging area, migratory pathway, etc.) is protected. Steps to protect these areas may include but are not limited to restricting the size of lawn areas or other clearings; restricting clear-cutting to certain seasons of the year or to certain areas, patterns, methods of removal; or applying other restrictions that it deems necessary to minimize the impact on wildlife and wildlife habitats. The Commission may require an analysis of the potential impacts of the proposed activity on wildlife, such analysis to be prepared by a qualified biologist.

That the groundwater quality and recharge potential of the area is preserved. The Commission may require an analysis of the possible impacts of the proposed activity on groundwater quality and recharge. In order to minimize such impacts, the Commission may require restrictions on the size or location of septic systems; the use of biofilters, detention ponds, retention ponds, and other methods of stormwater management that protect surface and subsurface waters; the regulation of the storage, handling or usage of hazardous materials or waste, including, but not limited to, fertilizers, pesticides and herbicides; and any other restrictions or limitations which the Commission may reasonably deem appropriate.

That areas of archaeological and historic importance have been identified and adequate steps have been taken to preserve and/or record these areas.

That the stability of the ridgeline is protected and that erosion potential is kept to a minimum by minimizing changes to the existing topography, preserving existing vegetation, requiring the revegetation of disturbed areas, and requiring the installation and maintenance of sedimentation and erosion control structures as needed. Steps to protect the stability of the ridgeline may include, but are not limited to, requiring retaining walls or other methods to minimize the cutting and filling of slopes; requiring reforestation or landscaping of quarries upon reaching finished grade or of other areas disturbed by development or clear-cutting; and requiring that driveways, roads, and other improvements requiring grading shall be approximately parallel to existing contours.

The applicant shall submit a plan showing the proposed or existing location of each structure, road, driveway, and other manmade feature on the lot. The plan shall show the maximum first-floor topographic elevation and the maximum elevation of the highest point of each building and structure.

The applicant, in consultation with the Town Planner, shall provide a list of visual impact observation points. These points shall be located through mapping and field observation. The applicant shall place aerial markers at points corresponding to the highest point of each proposed building and structure. The applicant shall provide photographs taken from visual impact observation points of the development site with aerial markers in place. The Commission shall verify the visual impact areas and may add other areas to be analyzed for visual impact in addition to proposed structure sites, including sites of proposed or existing roads, driveways, and other manmade features.

The applicant shall provide a map showing the location of all existing trees having a diameter of six inches or more at a height of four feet. The map shall be prepared by a licensed land surveyor and shall be certified to A-2 standards of accuracy.

Where existing vegetation is insufficient to provide, in the judgment of the Commission, adequate visual screening of visual impact areas on a particular lot, the applicant shall prepare a landscaping plan specifying the location, number, type, species, and size of plant and tree material that will be added to the lot. The plan shall be designed to screen those portions of the visual impact areas that will be observable from the visual impact observation points.

The applicant shall submit a plan with appropriate graphics and color renderings, specifying methods and mechanisms of minimizing the visual impacts of existing and proposed structures, roads, driveways, and other manmade features. Such methods and mechanisms shall include but are not limited to the following:

Mixed Use (AHOZ-MXD). On arterial roads and other areas with potential for development with mixed use developments and/or buildings.

Mixed Housing (AHOZ-MXH). A development including a combination of housing types as noted in the following paragraphs.

Multifamily (AHOZ-MF). Existing buildings and other areas with potential for development with multifamily housing.

Townhouse (AHOZ-TH). Areas with potential for residential townhouse development (a residential building consisting of three or more attached units in which each unit shares a wall extending from foundation to roof with the adjacent unit(s) and has exterior walls on at least two sides).

Duplex (AHOZ-DX). Areas with potential for development with duplex housing units designed to be compatible with single-family units in adjacent residential neighborhoods.

Single-Family (AHOZ-SF). Areas with potential for development with single-family units compatible with adjacent residential neighborhoods.

Mixed-Use. Mixed use development and/or mixed-use buildings, as defined above, with a mix of residential and commercial uses, with a residential density at up to 20 units/acre of site area and uses and structures accessory thereto.

Mixed-Housing. Two or more housing types at maximum densities for each as provided herein and uses and structures accessory thereto.

Multifamily. Multifamily residential development at up to 20 units/acre of site area and uses and structures accessory thereto.

Townhouse. Townhouse residential development at up to 10 units/acre of site area and uses and structures accessory thereto.

Duplex. Duplex residential development (two-unit buildings) at up to 10 units/acre of site area and uses and structures accessory thereto.

Single-Family. Single-family residential development at up to six units/acre of site area and uses and structures accessory thereto.

Facilitate the creation of housing opportunities as provided in this section.

Address on-site constraints or protect important resources.

Enhance the design of the development and/or surrounding neighborhoods.

Be approximately consistent with the setbacks of nearby buildings in order to create a desirable streetscape.

An identification of the affordable housing units within the development.

A requirement that such affordable unit shall only be occupied by a household earning 80% or less of the area median income for Avon, as determined and reported by the United States Department of Housing and Urban Development (HUD).

A statement of whether the affordable units will, at the time of initial occupancy, be rented or owner-occupied.

A detailed statement of the method for determining the rental rate or sale price or resale price of an affordable housing unit at any point in time.

A statement that the term of the deed restriction for each affordable unit shall be a minimum of 30 years from the date of first occupancy of that affordable unit.

The applicant shall prepare and submit a final "Housing Affordability Plan" in accordance with the requirements of C.G.S. § 8-30g, subsection 8-30g-1 et seq., of the Regulations of Connecticut State Agencies and the "Housing Affordability Plan Requirements" as adopted by the policy of the Zoning Commission and as the same may be modified from time to time, including:

Unless otherwise approved by the Commission, all developments approved under this section shall be served by public water and public sewer.

Unless otherwise approved by the Commission, any development approved under this section shall provide for off-street parking as follows:

Any developments proposed under this section shall, unless modified by the Commission, construct or improve the sidewalks abutting the project site in order to enhance the pedestrian nature and character of the proposed development and the surrounding area.

An identification of the housing units to be initially preserved as affordable within the development.

A requirement that such affordable unit shall only be occupied by a household earning 80% or less of the area median income for the region in which Avon is located, as determined and reported by the United States Department of Housing and Urban Development (HUD).

A detailed statement of the method for determining the qualifying household income and rental rate of an affordable housing unit at any point in time.

A statement of the term of the preservation period for each affordable unit from the date of first occupancy of that affordable unit.

Architectural and site designs shall comply with the area and dimensional standards in this section.

All developments shall comply with handicap accessibility requirements mandated by local, state and federal laws.

All Site Plans shall make adequate provision for facilities and access for fire, police, and other emergency protection.

Landscaping shall be provided, approved, and permanently maintained on the lot with an intent to reduce excessive heat, glare and dust, to provide privacy from noise and visual intrusion to control erosion of soil and stormwater runoff, to enable recharge of groundwater and to avoid degradation of groundwater, wetlands and watercourses. The following requirements shall be adhered to:

All parking, service and storage areas adjacent to perimeter buffers shall be enhanced if necessary to provide screening from abutting properties.

All landscaped buffers shall be planted or preserved in a natural state in a mixture of evergreen and deciduous trees and shrubs and shall be maintained in proper order. A landscaped buffer shall not be required along driveways or roadways providing access to or from a DD development, or in any location that will create a traffic visibility or safety issue, or in any area requiring drainage runoff improvements, such as drainage swales or detention basins.

Off-street parking shall be 1.0 spaces for each one-bedroom residential unit and 1.5 spaces for each two-bedroom residential unit, and parking spaces shall otherwise comply with Section 5.11.

Open space shall not be required for an HOZ development but is encouraged. Land designated for recreation shall not be used for the storage of equipment or the deposit of debris. Any physical improvements to open space/recreation areas approved as part of the HOZ development shall be completed prior to issuance of a certificate of zoning compliance.

Signage shall comply with Section 5.13 of these Regulations.

Lighting shall be provided for pedestrian safety; shall be outfitted with cut offs or similar shields to prevent glare on adjacent and neighboring properties; and shall be arranged to meet zero-foot candles at the property line.

Retaining walls may be constructed as necessary to provided grading and stability for residential use, provided that no retaining wall shall exceed 12 feet in height; each wall shall be built with a guardrail or equivalent safety feature as required by code; and specifications of the wall material, appearance shall be stated on the Site Plan and approval by the Town Engineer as safely designed prior to issuance of a building permit.

All applications for a DD development shall include a Stormwater Management Plan.

Soil erosion and sediment control standards shall comply with Section 5.7 of these Regulations.

Earth excavation, removal, including off-site removal, and/or fill, shall be permitted for any DD development without the need for additional Special Permit or special approval, provided that such excavation, removal and/or fill is conducted in connection with the construction or alteration of a building or other structure for which the Zoning Commission has issued a Site Plan approval. All earth excavation, removal, and/or fill for a DD development shall comply with the substantive standards in Section 5.5 of these Regulations.

To protect human life and health, and prevent damage to property;

To minimize expenditure of public funds for costly flood control projects;

To minimize the need for rescue and relief efforts associated with flooding and generally undertaken at the expense of the general public;

To minimize prolonged business interruptions and other economic disruptions;

To minimize damage to public facilities, infrastructure, and utilities, such as water and gas mains, electric, telephone and sewer lines, and streets and bridges, located in the floodplain;

To help maintain a stable tax base by providing for the sound use and development of flood hazard areas in such a manner as to minimize flood damage and flood blight areas;

To ensure that potential buyers are notified that property is in a flood hazard area;

To prevent increase in flood heights that could increase flood damage and result in higher costs and conflicts between property owners;

To ensure that those who occupy the flood hazard areas assume responsibility for their actions; and

To discourage development in a floodplain if there is any practicable alternative to locate the activity, use or structure outside of the floodplain.

The following uses are permitted in the SFHA, provided that no regrading or filling is necessary:

The following uses and activities may be permitted within the SFHA when authorized by the Commission as a Special Permit, in accordance with the criteria established in Section 7.1C of these Regulations and the applicable criteria contained in this section:

Regrading of land below the DFE but outside the floodway where the Commission determines that:

Filling of land as authorized above shall only be allowed as logical extensions of land lying at higher elevations.

Filling of land in the DFHA shall only be allowed where the resulting landscape is enhanced and where the neighborhood's essential characteristics have not been negatively altered.

No encroachments, including structural use, fill, new construction, substantial improvement, repairs to substantially damaged structures, and other developments shall be permitted within the floodway unless permitted by the Commission as a Special Permit for such public purposes as road crossings, minor recreational improvements, or safety improvements, provided that no (0.00) increase occurs in flood levels during the 1-percent annual-chance flood discharge as certified by a Connecticut licensed professional engineer with supporting technical data. Fences in the floodway must be aligned with the flow and be of an open design. When the 1% annual-chance elevation has been determined on the community's FIRM but a floodway has not been designated, the Commission must require that no new construction, substantial improvements, repair to structures which have sustained substantial damage or other development, including fill, shall be permitted which will increase the water surface elevation of the base flood more than one foot at any point within the community when all existing and anticipated development is considered cumulatively with the proposed development. The Commission may request floodway data of an applicant for watercourses without FEMA-published floodways. When such data is provided by an applicant or whenever such data is available from any other source (in response to the municipality's request or not), the community shall adopt a regulatory floodway based on the principle that the floodway must be able to convey the waters of the base flood without increasing the water surface elevation more than one foot at any point within the community.

Building floor elevations shall comply with the following standards:

All manufactured homes are prohibited in the DFHA.

Recreational vehicles shall not be placed within the 1-percent annual-chance floodplain but may be stored temporarily in the 0.2% annual-chance floodplain if they are registered, road ready and parked in accordance with any other applicable Avon Zoning Regulation.

Above-ground storage tanks (oil, propane, etc.) which are located outside or inside of the structure must be elevated completely above the 0.2-percent annual-chance flood elevation on a concrete pad and be securely anchored with tie-down straps to prevent flotation or lateral movements and have a screw fill cap that does not allow for the infiltration of floodwater.

If any portion of a structure lies within the 0.2-percent annual-chance floodplain or special flood hazard area (SFHA), the entire structure is considered to be in that zone and the entire structure must meet the construction requirements of that flood zone. If a structure lies within two or more flood zones, the construction standards of the most-restrictive zone, or the zone with the highest DFE, apply to the entire structure (i.e., an A Zone is more restrictive than a X Zone; structure must be built in compliance with the highest DFE). The structure includes any attached additions, garages, decks, sunrooms, or any other structure attached to the main structure. Decks or porches that extend into a more restrictive flood zone will require the entire structure to meet the standards of the more restrictive zone unless the attached structure is cantilevered such that no horizontal or vertical member of the attached structure extends below the DFE of the zone in question.

New construction, substantial improvements and repair to structures that have sustained substantial damage cannot be constructed or located entirely or partially over water unless they are a functionally dependent use or facility, or unless the over-water portion of the structure is cantilevered such that no horizontal or vertical member of the over-water portion extends below the DFE of the flood zone in question.

New and replacement water supply systems shall be designed to minimize or eliminate infiltration of floodwaters into the system. New and replacement sanitary sewage systems shall be designed to minimize or eliminate infiltration of floodwaters into the system and discharges from the system into floodwaters. On-site waste-disposal systems shall be located and constructed to avoid impairment to them or contamination from them during flooding.

New construction, substantial improvements, and structures that have sustained substantial damage shall be constructed using methods and practices that minimize flood damage and be constructed with materials and utility equipment resistant to flood damage. New construction, substantial improvements, and repairs to structures that have sustained substantial damage shall be anchored to prevent flotation, collapse, or lateral movement of the structure resulting from hydrodynamic and hydrostatic loads, including the effects of buoyancy.

The bottoms of all electrical, heating, ventilation, plumbing, air conditioning equipment, HVAC ductwork, and other service facilities, or any machinery or utility equipment or connections servicing a structure, whether located within or outside the structure, shall be elevated to or above the 0.2-percent annual-chance flood elevation, but may be below the DFE. This includes, but is not limited to, furnaces, oil or propane tanks, air conditioners, heat pumps, hot water heaters, ventilation ductwork, washer and dryer hookups, electrical junction boxes, and circuit breaker boxes. Any such work proposed to be installed below the 0.2-percent annual-chance flood level must be properly certified as completely flood-proofed and must be agreed to as such by the Avon Building Official/Town Engineer.

In any portion of a watercourse that is proposed to be altered or relocated, the flood-carrying capacity must be maintained. Notification to adjacent communities and the Connecticut Department of Energy and Environmental Protection (DEEP), Inland Water Resources Division, prior to any such alteration or relocation of a watercourse is required.