South Boston

Minimum side and rear yards for buildings accessory to single-family dwellings shall be five feet.

When a street is planned to be widened, the required front yard shall be measured from the proposed right-of-way line as shown on the thoroughfare plan or the official map of the town.

the required front yard set forth in this chapter shall be measured from the future street line.

Private swimming pools shall be located in the side or rear yard only and shall not be located closer than ten feet to any lot line. All swimming pools shall be enclosed by a fence or wall not less than four feet in height with a self-closing and self-latching gate. Private tennis courts shall be located in the side or rear yard only and shall not be located closer than 20 feet to any lot line. Fences surrounding tennis courts shall not exceed 12 feet in height and shall be set back at least ten feet from any lot line.

Swimming pools, pool deck areas and tennis courts shall not be located within required front and side yards. ... situated within 50 feet of adjacent property in a residential district shall be screened ... not less than six feet in height.

Gasoline pumps, pump islands and canopies may be located within required yards, provided that no such structure shall be located closer than 15 feet to any street right-of-way line or lot line.

In business and industrial districts, permitted gasoline pumps, pump islands and pump island canopies shall in no case be located nearer than 15 feet to any property line.

On a corner lot, nothing shall be erected, placed, planted, or allowed to grow in such a manner as to obstruct vision between a height of 30 inches and ten feet above the centerline grades of the intersecting streets, within the triangular area formed by the street right-of-way lines and a line connecting points on the street right-of-way lines 25 feet from the intersection of the right-of-way lines.

On a corner lot in any district other than a central business district, nothing that would materially obstruct the vision ... between the heights of three feet and eight feet ... within ... 20 feet from the point of their intersection.

Where a district requiring a front yard of 25 feet or more abuts a district requiring a front yard of less than 25 feet, the more restrictive front yard requirement shall apply along the street for a distance of 100 feet from the district boundary. Where a district permitting a use other than single-family residential abuts a single-family residential district, a transitional yard and screening shall be provided along the common lot line as follows: (1) A transitional yard of at least 20 feet shall be provided along the common lot line. (2) A screening fence or wall of at least six feet in height shall be provided within the transitional yard, or a landscaped buffer of at least 20 feet in width shall be provided.

A transitional yard shall be provided in any case where a side or rear lot line of a lot abuts or is situated across an alley from property located in a district of lower intensity ... screening ... not less than six feet in height, shall be visually opaque, shall be continuous and shall consist of solid structural fences or walls, evergreen vegetative material or combinations thereof.

Where more than one main building is located on a single lot, the minimum distance between such buildings shall be equal to the sum of the required side yards for each building, but in no case less than 20 feet.

Where two or more buildings, both of which are devoted to dwelling use, are located on the same lot, the following yards shall be provided: ... 60 feet ... 40 feet ... 20 feet

In an approved subdivision of two or more lots located in residential districts, one interior side yard on each lot devoted to single-family dwelling use may be equal to zero ... The minimum width of the side yard opposite the zero yard shall be ten feet ...

The height limitations of this chapter shall not apply to the following structures, provided that such structures do not constitute a hazard to air navigation: (1) Church spires, belfries, cupolas, and domes; (2) Monuments, water towers, and observation towers; (3) Chimneys, smokestacks, and silos; (4) Flagpoles, radio and television antennas, and similar structures; (5) Rooftop mechanical equipment, provided that such equipment does not extend more than 15 feet above the maximum permitted building height; and (6) Solar energy collection devices, provided that such devices do not extend more than five feet above the maximum permitted building height.

No accessory building shall exceed the height of the main building on the lot, nor shall any accessory building located within 25 feet of a property line exceed 15 feet in height.

Where 50 percent or more of the lots on one side of a street between two intersecting streets are developed with buildings, the required front yard for infill development shall be the average of the existing front yard setbacks of the developed lots on that side of the street, but in no case shall the front yard be less than 15 feet or more than the district requirement.

For residential structures in a neighborhood, the setback shall not be less than 20 feet.

Landscaping shall be provided and maintained in accordance with an approved site plan for all new development, except single-family and two-family dwellings. A minimum of ten percent of the gross site area of any nonresidential development shall be landscaped.

Existing trees of six inches in caliper or larger along property boundaries or within 20 feet of a stream or river shall be retained ... All street frontages shall be landscaped with trees, shrubs, or other suitable vegetation. There shall be at least one tree planted for every 30 feet of public street frontage. ... Parking areas shall be landscaped ... minimum of five percent of the parking lot must be landscaped ...