Dimensional standards
Uses
Permitted by right1
Extracted standards
15 individual requirements pulled out of this section’s prose, each with the sentence it came from.
Other
- Maximum attached ADUAccessory dwelling unit (ADU)A second, smaller home on a lot that already has one — a garage flat, basement flat or backyard cottage. floor area as percentage of principal50 pct
The gross floor area of an attached accessory dwelling unit may not exceed 50% of the gross floor area of the principal structure in which it is located.
- Maximum detached ADUAccessory dwelling unit (ADU)A second, smaller home on a lot that already has one — a garage flat, basement flat or backyard cottage. floor area as percentage of primary when primary >1000 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.60 pct
If the gross floor area of the primary dwelling on the property exceeds 1,000 square feet, the gross floor area of a detached accessory dwelling unit may not exceed 60% of the gross floor area of the primary dwelling nor more than 1,000 square feet.
- Maximum detached ADUAccessory dwelling unit (ADU)A second, smaller home on a lot that already has one — a garage flat, basement flat or backyard cottage. floor area when primary >1000 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.1,000 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.
If the gross floor area of the primary dwelling on the property exceeds 1,000 square feet, the gross floor area of a detached accessory dwelling unit may not exceed 60% of the gross floor area of the primary dwelling nor more than 1,000 square feet.
- Maximum detached ADUAccessory dwelling unit (ADU)A second, smaller home on a lot that already has one — a garage flat, basement flat or backyard cottage. floor area when primary <1000 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.600 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.
If the gross floor area of the primary dwelling on the property is less than 1,000 square feet, the gross floor area of a detached accessory dwelling unit may not exceed 600 square feet.
- Maximum heightMaximum heightThe tallest a building may be, given in feet, in storeys, or both — whichever binds first. of detached accessoryAccessory useA secondary activity customarily incidental to the main use of the lot — a garage, a home office. building25 ft
Detached accessory buildings containing accessory dwellings shall exceed neither 25 feet in height nor two stories in height.
- Maximum heightMaximum heightThe tallest a building may be, given in feet, in storeys, or both — whichever binds first. in storiesStoreysHabitable floor levels. Whether a basement or attic counts is defined by the local code.2 storiesStoreysHabitable floor levels. Whether a basement or attic counts is defined by the local code.
Detached accessory buildings containing accessory dwellings shall exceed neither 25 feet in height nor two stories in height.
- Maximum occupancy2 persons
designed, arranged, used, or intended for occupancy by not more than two persons
- Maximum number of ADUs per parcel1 unit
No more than one ADU shall be allowed per parcel containing a primary dwelling.
- Minimum rear setbackSetbackThe distance a building must be held back from a lot line. when rear lot line along alley10 ft
When the rear lot line runs along an alley, the minimum rear yard setback for a detached accessory dwelling unit shall be 10 feet.
- Minimum rear setbackSetbackThe distance a building must be held back from a lot line. for detached ADUAccessory dwelling unit (ADU)A second, smaller home on a lot that already has one — a garage flat, basement flat or backyard cottage. in R-115 ft
For lots in the R-1 zoning district, the nearest wall of the accessory building shall not be located closer than 10 feet to a side lot line or 15 feet to a rear lot line.
- Minimum rear setbackSetbackThe distance a building must be held back from a lot line. for detached ADUAccessory dwelling unit (ADU)A second, smaller home on a lot that already has one — a garage flat, basement flat or backyard cottage. in R-220 ft
For lots in the R-2 zoning district, the nearest wall of the accessory building shall not be located closer than 15 feet to a side lot line or 20 feet to a rear lot line.
- Minimum side setbackSetbackThe distance a building must be held back from a lot line. for detached ADUAccessory dwelling unit (ADU)A second, smaller home on a lot that already has one — a garage flat, basement flat or backyard cottage. in R-110 ft
For lots in the R-1 zoning district, the nearest wall of the accessory building shall not be located closer than 10 feet to a side lot line or 15 feet to a rear lot line.
- Minimum side setbackSetbackThe distance a building must be held back from a lot line. for detached ADUAccessory dwelling unit (ADU)A second, smaller home on a lot that already has one — a garage flat, basement flat or backyard cottage. in R-215 ft
For lots in the R-2 zoning district, the nearest wall of the accessory building shall not be located closer than 15 feet to a side lot line or 20 feet to a rear lot line.
- Parking requirement
If no parking spaces exist prior to an application for approval of an ADU, one off-street space shall be created, provided, however, that if an applicant can demonstrate to the Zoning Administrator that adequate on-street parking exists on the block on which the main dwelling is located, such new space may not be required. Where either one or two spaces exist prior to the issuance of the accessory dwelling permit, all such space(s) shall be maintained. Where more than two spaces exist prior to issuance of the accessory dwelling permit, at least two spaces shall be maintained.
- Maximum nights per year for ADUAccessory dwelling unit (ADU)A second, smaller home on a lot that already has one — a garage flat, basement flat or backyard cottage. short-term rentalShort-term rentalA dwelling let to guests for brief stays — the zoning category behind Airbnb rules. in R-1, R-2, R-M45 nights
The host of a short term rental unit that is located in an accessory dwelling unit, is subject to this subsection, and is located in the R-1, R-2, or R-M residential zoning district may not rent the unit for more than 45 nights in each calendar year.
From the ordinance
Accessory dwelling units shall be subject to the following minimum standards: ... No more than one ADU shall be allowed per parcel ...