Dimensional standards
Height & bulk
Housing
- Two-family
- by_right
- Three-family
- by_right
- Four-plus family
- by_right
Uses
Permitted by right16
- Any principal use permitted in the R-1 district
- Single-family attached dwellings
- Two-family detached dwellings
- Multifamily dwellings
- Nursing homes
- Day nurseries
- Tourist homes situated on Federal highways
- Parking areas serving uses permitted in this district
- Parking decks serving uses permitted in this district
- Offices, including business, professional and administrative offices, medical and dental offices and clinics, and studios of writers, designers and artists
- Hospitals (not psychiatric hospitals for court-committed patients)
- Adult day care facilities
- Short-term rental
- Adult care residences
- Permanent supportive housing
- Transitional housing
Conditional / special use6
Accessory6
- Any accessory use or structure permitted in the R-1 district
- Guest units in multifamily developments
- Incidental uses within multifamily dwellings, nursing homes and office buildings
- Restaurant facilities, ATMs and shops within hospital buildings
- One dwelling unit in an accessory building (existing)
- Emergency housing
Extracted standards
10 individual requirements pulled out of this section’s prose, each with the sentence it came from.
Fencing & walls
- Minimum play area fence heightMaximum heightThe tallest a building may be, given in feet, in storeys, or both — whichever binds first.4 ft
The play area shall be enclosed with a continuous opaque structural fence or wall not less than four feet in height
Height
- Inclined plane heightMaximum heightThe tallest a building may be, given in feet, in storeys, or both — whichever binds first. restriction
No portion of a building shall penetrate an inclined plane originating at the centerline of an abutting street and extending over the lot at an inclination of one foot horizontal for each two feet vertical along any street frontage where a front yard is required and one foot horizontal for each three feet vertical along other street frontages
Other
- Guest units per dwelling unitsDwelling unitOne independent home: its own kitchen, bathroom and entrance.0.02 ratio
The total number of such guest units shall not exceed one for each 50 dwelling units within the development
- Maximum floor area ratioFloor area ratio (FAR)Total floor area divided by lot area — an FAR of 2.0 permits 20,000 sq ft of floor on a 10,000 sq ft lot. for nondwelling uses1.4 ratio
The floor area ratio of buildings or portions thereof devoted to nondwelling uses shall not exceed 1.4
- Maximum incidental use floor area percentage5 pct
The aggregate floor area devoted to such uses shall not exceed five percent of the total floor area of the building
- Minimum separation between buildings with dwelling15 ft
Where two or more buildings, at least one of which contains a dwelling use, are erected on the same lot, the distance between any two such buildings shall be not less than 15 feet
- Minimum separation between buildings without dwelling10 ft
Where two or more buildings, neither of which contains a dwelling use, are erected on the same lot, the distance between any two such buildings shall be not less than ten feet
- Minimum outdoor play area per child100 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.
A minimum outdoor play area of 100 square feet for each child enrolled shall be furnished on the premises
- Minimum usable open spaceOpen spaceLand a development must leave unbuilt, sometimes required to be usable or planted. ratio0.25 ratio
A usable open space ratio of not less than 0.25 shall be provided for dwelling uses
Parking
- Parking deck screening opacity45 pct
Parking spaces contained therein shall be screened from view from abutting streets by structural material of not less than 45 percent opacity
From the ordinance
No building or structure in the RO-3 district shall exceed 150 feet in height