To preserve and build upon the strength of the Lower Frederick's villages as the core of the Township, both in terms of uses and densities/intensities of those uses.

To provide for the Township's fair share of population growth, by permitting medium-density development and a variety of detached and semidetached dwelling types.

To provide standards that permit orderly and efficient medium-density development while preserving and protecting adjacent areas from any negative impacts.

To promote the sense of neighborhood and promote community identity.

To encourage walking between buildings, and encourage automobile trips that serve more than one purpose, thereby reducing traffic volume.

To provide open space and recreation facilities for the benefit of residents of medium-density developments.

To further the general welfare by extending greater opportunities for better and more affordable housing to present and prospective residents of Lower Frederick Township.

To promote the objectives and policies of the Township Comprehensive Plan.

Any mix of the following residential dwelling types with density based on the standards listed below. Maximum tract density shall be subject to further modification by the environmental adjustment factors in § 170-41 of this chapter, as determined by the formula in § 170-41B(2) of this chapter.

Open space uses, primarily passive in nature, including wildlife sanctuary, forest preserve, nature center, and similar uses.

Game farm, fish hatchery, hunting or fishing preserve; or similar uses designed for the protection or propagation of wildlife.

Parks and recreation areas in compliance with the standards and criteria of Article XIII, Institutional and Recreational Overlay District, when approved by the Board of Supervisors.

Institutions, by conditional use and in compliance with the standards and criteria of Article XIII, Institutional and Recreational Overlay District, when approved by the Board of Supervisors.

Government uses, public utility facility.

Accessory uses in compliance with § 170-24 of this chapter, including home occupations in compliance with § 170-25 of this chapter.

Residential conversion to not more than two dwelling units of any single-family detached dwelling that existed as of the date of adoption of this chapter, provided that the dimensional and development regulations for a two-family detached dwelling and all other zoning requirements are met.

Only one principal use shall be allowed on a lot.

Minimum buildable area for each building lot shall be equal to the minimum lot size specified in Table 170-56C below or 21,780 square feet, whichever is smaller.

The minimum lot area, minimum lot width, maximum building coverage, maximum impervious surface coverage, and minimum front, side and rear yard setbacks required for each permitted use in the R-3 Medium-Density Residential District are as prescribed in Table 170-56C herein.

Access to a public street. As an exception to the requirements of § 170-11 of this chapter, each and every lot in the R-3 District shall abut a public street at the ultimate right-of-way line for at least 50 feet or the minimum lot width requirement for the specific dwelling/use type, whichever is smaller, and said frontage must be usable for purposes of ingress and egress to the lot.

Additional setback regulations.

Zoning district boundary setback. A minimum setback of 50 feet is required between any semidetached principal building in the R-3 Medium-Density Residential District and any Township boundary or any boundary of a residential zoning district with a maximum permitted density of two units per acre or lower. This setback may be part of a required yard area and shall include landscaping and/or berming according to the provisions of Chapter 145, Subdivision and Land Development.

Unless specifically regulated elsewhere in this chapter, the maximum height for all accessory buildings and structures is 15 feet and is 35 feet for all other buildings and structures. (See § 170-24 and § 170-32 for additional height regulations.)

Subdivision and land development. All applicants seeking subdivision and/or land development approval shall comply with and follow the requirements of § 170-41, Environmental adjustment factors, to determine the development capacity of the site.

All development in the R-3 Medium-Density Residential District shall be served by public water and sewer.

All development shall comply with the provisions of Chapter 145, Subdivision and Land Development.

All development shall comply with the parking requirements of Article XVII of this chapter.

Open space. All developments in the R-3 Medium-Density Residential District with patio house, single-family semidetached, and two-family detached dwelling types, and with 12 units or more, shall have required permanent open space, according to the following standards:

The siting of all required parking spaces in the side and rear yard areas of the lots is strongly encouraged. If an alley exists to the rear of the lot, parking off the alley is strongly encouraged. The use of shared or common driveways is also encouraged.

If the front yard setback includes parking, there shall be a minimum five-foot buffer between the end of the driveway or parking area and the dwelling unit (except in case of a driveway leading to a garage or carport). The buffer area shall be landscaped and shall not be paved.

Parking shall not interfere with driveways, accessways, sidewalks, or pedestrian walkways.