40 GENERAL DEVELOPMENT STANDARDS
Figure 10.50.A |
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![]() Figure 16.40.100.A. |
![]() Figure 16.40.100.B. |
![]() Figure 16.40.100.C. |
Table 16.40.160.A – Site Lighting – Commercial/Industrial Foot-Candles | |||
|---|---|---|---|
Lighting Type | Maintained Foot-Candles | Uniformity Avg. : Min. | Average Foot-Candle |
High activity, e.g., regional shopping centers, fast food facilities, major athletic/civic/cultural events | 0.9 min. | 5.9 : 1 | 5.3 |
Medium activity, e.g., community shopping centers, office parks, hospitals, commuter lots, cultural/civic/recreational events | 0.6 min. | 5.9 : 1 | 3.5 |
Low activity, e.g., neighborhood shopping, industrial employee parking, school, church parking | 0.2 min. | 5.9 : 1 | 1.1 |
Nonresidential walkways and bikeways | 0.5 min. | 5.9 : 1 | 2.9 |
Building entrances | 5.0 avg. | N/A | N/A |
Table 16.40.160.B – Site Lighting – Commercial/Industrial Mounting Heights | ||
|---|---|---|
Lighting Type | Average Mounting Height | Average Mounting Range |
Vehicular Use | 34' | 20' – 50' |
General Site | 25' | 20' – 30' |
Pedestrian (see security area below) | 12' | 10' – 15' |
Feature | N/A | 0' – 3'6" |
Notes: In the application of the above standards, the following regulations should apply: |
1. Illumination levels should be defined as maintained horizontal foot-candles on the task. For example, the pavement or area surface. |
2. Uniformity ratios dictate that average illumination values should not exceed minimum values by more than the product of the minimum value and the specified ratio. For example, in the case of the commercial parking high activity, the average foot-candles should not be in excess of 5.3 (0.9 x 5.9). |
3. In no case should illumination exceed 0.5 foot-candles measured at the property line; and the amount of illumination projected onto a residentially zoned property or use from another property should not exceed 0.1 foot-candle at the property line. |
4. Lighting standards in parking areas should be located no more than 100 feet apart unless other types of lighting fixtures are used as approved by the design review board. |
5. No parking lot light standard shall exceed the height of the predominant roofline of the primary building on site. |
6. Lamp types and colors should be in harmony with other lamps in the community, any special circumstances existing on the site, and surrounding installations. Lamp types should be consistent with the task and setting, and shall not create a mix of colors unless otherwise approved by the design review board. |
Table 16.40.160.C – Security Lighting | |||
|---|---|---|---|
Walkways | Average Area: (Foot-Candle) | Security Area (Foot-Candle) | |
Low Mount: 9' to 15' | High Mount: 15' to 30' | ||
Commercial | 0.9 | 2.0 | 4.0 |
Intermediate | 0.6 | 1.0 | 2.0 |
Residential | 0.2 | 0.4 | 0.8 |
The estimated total water use shall be calculated using the equation below. The sum of the estimated total water use calculated for all hydrozones shall not exceed MAWA. See the water efficient landscape worksheet. |
ETWU = (ETo)(0.62)[(PFxHA)/(IE)+SLA] |
where: |
ETWU = Estimated total water use per year (gallons) |
ETo for Highland = 55.6 |
PF = Plant factor from WUCOLS (see "Plant Factor") |
HA = Hydrozone area [high, medium, and low water use areas] (sq. ft.) |
SLA = Portion of the landscape area identified as special landscape area (sq. ft.) |
0.62 = Conversion to gallons per square foot |
IE = Irrigation Efficiency (minimum 0.71) |
Estimated Total Water Use = ________ gallons |
A combined plant mix with a site-wide average of 0.5 is the basis of the plant factor portion of this calculation. For purposes of the ETAF, the average irrigation efficiency is 0.71. Therefore, the ET adjustment factor is (0.7) = (0.5/0.71). ETAF for a special landscape area shall not exceed 1.0. ETAF for existing nonrehabilitated landscapes is 0.8. |
The project's maximum applied water allowance shall be calculated using this equation: |
MAWA = (ETo)(0.62)[(0.7 x LA) + (0.3 x SLA)] |
where: |
MAWA = Maximum applied water allowance (gallons per year) |
ETo for Highland = 55.6 |
ET adjustment factor (ETAF) = 0.7 |
LA = Landscaped area includes special landscape area (sq. ft.) |
0.62 = Conversion to gallons per square foot |
SLA = Portion of the landscape area identified as special landscape area (sq. ft.) |
0.3 = additional ET adjustment factor for special landscape area (1.0 – 0.7 = 0.3) |
Maximum applied water allowance = gallons per year |
Example MAWA for landscaped area of 10,000 sq. ft. |
(54.6)(0.7)(10,000)(0.62) = 236,964 gallons per year (MAWA) |
"Runoff' shall mean water that is not absorbed by the soil or landscape to which it is applied and flows from the area. |
"Turf' shall mean a surface layer of earth containing mowed grass or grass-like sedge with its roots; a groundcover surface of mowed grass or grass-like sedge. Turf includes, but is not limited to, the following plant types: annual bluegrass, Kentucky bluegrass, perennial ryegrass, red fescue, tall fescue, Bermuda grass, Kikuyu grass, seashore paspalum, St. Augustine grass, Zoysia grass, Carex pansa, and buffalo grass. |
All landscape construction plans shall include an irrigation plan, a planting and soils plan, and a water management plan with detailed notes and legends necessary for a complete landscape plan review. |
If the construction plans differ significantly from the conceptual landscape plan (as determined by the community development director), the applicant must resubmit an overall water budget calculation in accordance with the landscape application. |
Table 16.40.410.A Airport Overlay Zone and Safety Compatibility Criteria | |||||||
|---|---|---|---|---|---|---|---|
Maximum Nonresidential Intensity (People/Acre) | Safety Zones | Criteria for Conditional Uses | |||||
A | B1 | B2 | C | D | E | ||
10 | 80 | 160 | 200 | No Limit | |||
Maximum Lot Coverage (%) | 0 | 50 | 60 | 70 | 100 | 100 | |
RESIDENTIAL USES | |||||||
Residential, ≤0.2 du/acre (5+ acre lots) | NA | ▪ | NA | ▪ | SR | SR | |
Residential, >0.2, ≤4.0 du/acre | NA | ▪ | NA | ▪ | SR | SR | |
Residential, >4.0, ≤8.0 du/acre | NA | ▪ | NA | ▪ | SR | SR | |
Residential, >8.0, ≤16.0 du/acre | NA | ▪ | NA | ▪ | SR | SR | |
Residential, >16.0 du/acre | NA | ▪ | NA | ▪ | SR | SR | |
ASSEMBLY FACILITIES (>50 PEOPLE) | |||||||
Indoor Major Assembly Room (capacity ≥1,000 people): major sports arena, concert halls | NA | ▪ | NA | ▪ | C | SR | D: Enhanced exiting capabilities required |
Outdoor Major Assembly Facility (capacity ≥1,000 people): amphitheaters, stadiums, race tracks, fairgrounds, zoos | NA | ▪ | NA | ▪ | C | SR | D: No fixed seating with capacity ≥1,000 people |
Indoor Large Assembly Room (capacity 300 to 999 people): sports arenas, theaters, auditoriums, assembly halls [approx. 15 sf/person] | NA | ▪ | NA | ▪ | SR | SR | |
Outdoor Large Assembly Facility (capacity 300 to 999 people) | NA | ▪ | NA | ▪ | SR | SR | |
Indoor Small Assembly Room (capacity 50 to 299 people): meeting rooms, dining halls, dance studios, places of worship [approx. 60 sf/person] | NA | ▪ | NA | C (FAR .28) | SR | SR | C: FAR limits as indicated |
Outdoor Small Assembly Facility (capacity 50 to 299 people): community swimming pools, group camps | NA | ▪ | NA | C | SR | SR | C: Intensity limit as indicated at top of page; no fixed seating with capacity ≥300 people |
OFFICE, COMMERCIAL, SERVICE, AND LODGING USES | |||||||
Large Eating/Drinking Establishments in Freestanding Building (capacity >300 people) [approx. 60 sf/person] | NA | ▪ | NA | C (FAR .30) | SR | SR | C: FAR limits as indicated |
Mid-Size Eating/Drinking Establishments in Freestanding Building (capacity 50 to 299 people) [approx. 60 sf/person] | NA | ▪ | NA | C (FAR .30) | SR | SR | C: FAR limits as indicated |
Small Eating/Drinking Establishments in Freestanding Building (capacity <50 people) | NA | ▪ | NA | SR | SR | SR | |
Retail Shopping Centers [approx. 110 sf/person] | NA | ▪ | NA | C (FAR .51) | SR | SR | C: FAR limits as indicated. No space with capacity ≥300 people |
Retail Stores, no Restaurants [approx. 170 sf/person] | NA | ▪ | NA | SR | SR | SR | |
Low-Intensity or Outdoor-Oriented Retail or Wholesale Trade: furniture, automobiles, heavy equipment, nurseries, lumber yards, boat yards [approx. 250 sf/person] | NA | ▪ | NA | SR | SR | SR | |
Low-Hazard Storage: mini-storage, greenhouses | NA | SR | NA | SR | SR | SR | |
Office Buildings: professional services, doctors, financial, civic [approx. 215 sf/person] | NA | ▪ | NA | C (FAR .40) | SR | SR | C: FAR limits as indicated |
Misc. Service Uses: car washes, barbers, animal kennels, print shops [approx. 200 sf/person] | NA | ▪ | NA | SR | SR | SR | |
Hotels, Motels (except conference/assembly facilities) [approx. 200 sf/person] | NA | ▪ | NA | C (FAR .37) | SR | SR | C: FAR limits as indicated |
Bed and Breakfast Establishments | NA | ▪ | NA | C (FAR .37) | SR | SR | C: FAR limits as indicated |
INDUSTRIAL, MANUFACTURING, AND WAREHOUSE USES | |||||||
Processing and Storage of Bulk Quantities of Highly Hazardous Materials (tank capacity >10,000 gallons): oil refineries, chemical plants | NA | ▪ | NA | ▪ | C | C | D: Permitted agencies must comply with all federal, state, and local standards and shall evaluate need for special measures to minimize hazards if facility struck by aircraft. |
Storage or Use of Hazardous Materials (flammable, explosive, corrosive, or toxic) | NA | C | NA | C | SR | SR | B1, C: Permitting agencies must comply with all federal, state, and local standards and shall evaluate need for special measures to minimize hazards if facility struck by aircraft. |
Auto, Aircraft, Marine, Repair Services | NA | SR | NA | SR | SR | SR | |
Manufacturing [300 sf/person] | NA | C (FAR .55) | NA | C (FAR .55) | SR | SR | B1, C: FAR limits as indicated |
Research and Development [215 sf/person] | NA | C (FAR .40) | NA | C (FAR .40) | SR | SR | B1, C: FAR limits as indicated |
Industrial Outdoor Storage, except hazardous uses: public works yards, auto wrecking yards | NA | SR | NA | SR | SR | SR | |
Warehouses, Distribution Facilities | NA | SR | NA | SR | SR | SR | |
Gas Stations, Repair Garages | NA | SR | NA | SR | SR | SR | |
EDUCATIONAL AND INSTITUTIONAL USES | |||||||
Colleges and Universities | NA | ▪ | NA | ▪ | SR | SR | |
Children Schools, K-12 | NA | ▪ | NA | ▪ | SR | SR | |
Day Care Centers (>14 children) | NA | ▪ | NA | ▪ | SR | SR | |
Family Day Care Homes (≤14 children) | NA | ▪ | NA | ▪ | SR | SR | |
Hospitals, Health Care Centers, Mental Hospitals, Other Medical Facilities (except doctors' offices) [approx. 240 sf/person] | NA | ▪ | NA | ▪ | SR | SR | |
Congregate Care Facilities (>5 clients): nursing homes, assisted living facilities [approx. 100 sf/person] | NA | ▪ | NA | ▪ | SR | SR | |
Public Emergency Services Facilities: police stations (except jails), fire stations | NA | ▪ | NA | ▪ | SR | SR | |
Public Inmate Facilities: prisons, reformatories | NA | ▪ | NA | ▪ | SR | SR | |
TRANSPORTATION, COMMUNICATION, AND UTILITIES | |||||||
Airport Terminals | NA | SR | NA | SR | SR | SR | |
Transportation Terminals: rail, bus, marine | NA | ▪ | NA | SR | SR | SR | B1: Allowed only if associated with airport access |
Truck Terminals | NA | SR | NA | SR | SR | SR | |
Small Transportation Hubs: bus stops | NA | SR | NA | SR | SR | SR | |
Aircraft Storage | NA | SR | NA | SR | SR | SR | |
Automobile Parking Structures | NA | SR | NA | SR | SR | SR | |
Automobile Parking Surface Lots | NA | SR | NA | SR | SR | SR | |
Street, Highway Right-of-Way | NA | SR | NA | SR | SR | SR | |
Railroads, Public Transit Lines | NA | SR | NA | SR | SR | SR | |
Power Plants | NA | ▪ | NA | C | C | C | C, D, E: No new sites or land acquisition; modification, replacement, expansion of facilities on existing sites allowed |
Electrical Substations | NA | ▪ | NA | SR | SR | SR | |
Emergency Communications Facilities | NA | C | NA | C | C | C | B1, C, D, E: No new sites or land acquisition; modification, replacement, expansion of facilities on existing sites allowed |
Cell Phone Towers, Wind Turbines | NA | C | NA | C | SR | SR | B1, C: Shall not constitute a hazard to aviation |
AGRICULTURE AND OTHER USES | |||||||
Agricultural Lands: pasture, rangelands, field crops, grain crops, dry farming, vineyards | NA | SR | NA | SR | SR | SR | |
Agricultural Buildings: barns, feed lots, stockyards, riding stables | NA | SR | NA | SR | SR | SR | |
Wooded Areas: forests, tree farms, orchards | NA | SR | NA | SR | SR | SR | |
Lands with Low or No Vegetation: brush lands, deserts, beaches, flood hazard areas | NA | SR | NA | SR | SR | SR | |
Water: rivers, creeks, canals, wetlands, bays, lakes, reservoirs | NA | SR | NA | SR | SR | SR | |
Marinas (no group activities) | NA | SR | NA | SR | SR | SR | |
Large Group Recreation: team athletic fields, picnic areas | NA | ▪ | NA | SR | SR | SR | |
Non-Group Recreation: golf courses, tennis courts, parks, camp grounds | NA | SR | NA | SR | SR | SR | |
Shooting Ranges | NA | ▪ | NA | SR | SR | SR | |
Memorial Parks, Cemeteries (no places of assembly) | NA | SR | NA | SR | SR | SR | |
Wastewater Treatment and Disposal Facilities | NA | C | NA | C | SR | SR | B1, C: Shall not increase bird hazard |
Sanitary Landfills | NA | C | NA | C | SR | SR | B1, C: Shall not increase bird hazard |
Legend |
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▪ Incompatible: Use should not be permitted under any circumstances. |
C Conditional: Use is acceptable if indicated floor area ratio (FAR), lot coverage, and other listed conditions are met. |
SR Compatible: Use is acceptable without safety-related conditions (noise, airspace protection, and/or overflight limitations may apply). |
NA Not Applicable: Land in Zones A and B2 is outside the boundary of the city of Highland. |
Slope | Conditions |
|---|---|
10% – 15% | Mass grading may occur, but grading must utilize contour grading techniques. Significant environmental features may be required to be preserved. Grading shall be minimized through special hillside architectural and design techniques. Structures shall be sited so as to conform to the natural landforms by using split level construction, stem walls, clustering, etc. A planned development may be required to utilize clustering or density transfers. |
15.1% – 25% | All grading shall be contoured and sensitive to significant environmental features. Mass grading is not appropriate. The amount of grading allowed shall be based on what is minimally required to establish custom building pads and entry access. This is a steep hillside condition which limits development to less visible slopes and other areas. Development must minimize public health and safety, environmental and aesthetic concerns. Roadways shall follow natural contours to the extent possible. Structures shall blend with the environment through design, shape and siting techniques. A project in this area may require a planned development to provide for density transfers and clustering. |
25% and above | Grading and development within this slope category is generally discouraged except where the following findings can be incorporated into the hillside design: Linkage/access: the area in excess of 25% slope is minimal and represents the only means of access or linkage to another area of less than 25% slope which otherwise could not be developed. Custom homesites: dwellings have been designed to fit the terrain so that there are no significant external signs of grading through the use of stepped foundations, small retaining walls, post and beam construction, or similar custom design features. Driveway access: access to the site is designed to blend with the natural terrain as much as possible while maintaining a less than 15% grade. Aesthetics: visual impacts are not found to be significant. Safety: no adverse impacts to the public health, safety and welfare are present. This could be considered very mountainous and development may be severely limited. Access may be a problem due to inability to site roads. |
Slope Category | Minimum % of Area to Be Left as Natural Open Space |
|---|---|
10% – 15% | 30 |
15.1% – 25% | 45 |
25.1% – and over | 65 |
Natural Slope | Maximum Interval in Feet |
|---|---|
0% – 20% | 2 |
20.1% + | 5 |
Average cross slope = | I x L x 0.0023 | |
A |
I = Contour interval |
L = Contour length |
0.0023 = Constant to convert square feet to acres and slope to percent |
A = Acres in site |