2017-03-22 BOS Packet - Released

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6.10.4 Performance Standards. In addition to the dimensional controls of the RO or RS District, the following performance standards apply: 1. One unit on the property must be deed restricted as either senior housing or affordable unit eligible for inclusion on the Commonwealth's Subsidized Housing Inventory. 2. Gross Floor Area. The maximum gross floor area allowed by this section may not to exceed the amount listed in the table below: Lot Area Max. Gross Floor Area* (in square feet) (in square feet) 0 — 5,000 Not allowed 5,000 7,500 2,500 7,500—. 10,000 3,900 10,000 15,000 4,450 15,000 30,000 5,450 More than 30,000 5,450 * Minimum unit size is 1,250 SF 3. There may not be more than one principal structure on a lot. 4. Accessory units authorized under 6.7 of this Bylaw are prohibited in properties granted a special permit for a two-family home. 5. The principal structure must maintain the appearance of a single-family dwelling. Scale, design, height, and proportions should all be consistent with the other single-family homes in the area. 6. Driveways must be shared. Only one curb cut per lot is permitted. 7. To maximize living space and pervious surface, garages are discouraged. The total number of covered parking spaces (in a garage, a structure, a carport, or similar) may not exceed two. Detached garages must be shared. Garage doors may not face the street. 8. Utilities (outdoor mechanical equipment not including walkway lighting) are not allowed in the front of the structure (between the structure and the adjacent way) or in the setbacks, and may not be visible from the adjacent way or ways. 9. Exterior lighting must be minimized and only as needed to accomplish safety and minimize the impact on neighboring properties. 10. Noise generated by fixed plant equipment such as air conditioners,pumps, fans, and furnaces must not impact abutters. 11. Trees. Utilities, driveways, and curb cuts must be located to preserve existing trees and their rooting zones (including street trees and trees on private property). 12. Siting of the dwelling may not affect the solar access of adjoining lots. 13. Above-grade utilities and mechanical equipment are not allowed between the principal structure and the right of way, nor in any setback area. 14. Grading must be minimal and in keeping with the general appearance of neighboring developed areas.