In all Residence Districts, the following obstructions shall be permitted within any required yard, rear yard equivalent, court or other required open area. These allowances are generally common to Residence, Commercial and Manufacturing Districts.

1. Accessory mechanical equipment, limited in depth to 18 inches from an exterior wall;
2. Arbors or trellises;
3. Awnings and other sun control devices, provided that when located at a level higher than the first story, excluding a basement, all such awnings and other sun control devices:
   1. shall be limited to a maximum projection from a building wall of 2 feet, 6 inches; and
   2. shall have solid surfaces that, in aggregate, cover an area no more than 30 percent of the area of the building wall (as viewed in elevation) from which they project;
4. Bicycle or micromobility parking, including necessary ancillary structures;
5. Canopies;
6. Chimneys, projecting not more than three feet into, and not exceeding two percent of the area of, the required yard or rear yard equivalent;
7. Eaves, gutters, downspouts, or other similar projections, extending into such yard or rear yard equivalent not more than 16 inches or 20 percent of the width of such yard or rear yard equivalent, whichever is the lesser distance;
8. Electric vehicle charging equipment;
9. Flagpoles;
10. Qualifying exterior wall thickness;
11. Ramps or lifts for people with physical disabilities;
12. Solar energy systems, accessory or as part of an energy infrastructure equipment:
    1. on walls existing on April 30, 2012, projecting no more than 10 inches and occupying no more than 20 percent of the surface area of the building wall (as viewed in elevation) from which it projects; or
    2. above other permitted obstructions, as applicable, provided that the additional height shall be limited to 18 inches;
13. Terraces or porches, open;
14. Window sills, or similar projections extending into such yard or rear yard equivalent not more than four inches.