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A. Projections Above Height Limits. Table 23.304 5 shows features that may project above allowed height limits. For rules that apply to wireless telecommunication facilities, see Chapter 23.332 (Wireless Telecommunication Facilities).

Table 23.304-5. ALLOWED PROJECTIONS ABOVE HEIGHT LIMIT

Structures Allowed Above Height Limit

Maximum Projection Above Height Limit

Limitations

Permit Required

Residential Districts

Non-Residential Districts

Residential Districts

Non-Residential Districts

Towers, antennas, poles used for the transmission of electricity, telephone, cable television or other messages

No maximum

None

None

Flag poles, skylights, solar energy equipment, and similar structures

No maximum

None

None

Chimneys, water tanks, heating and air conditioning equipment, vents, pipes and necessary mechanical roof appurtenances

4 ft. or the minimum height required by the Building Code [1]

No maximum

Maximum 3 ft. in width [1]

No additional limitations

None

Other building and site features, including but not limited to, mechanical penthouses, elevator equipment rooms and cupolas, domes, turrets and other architectural elements

No maximum

May not exceed 15% of the average floor area of all of the building’s stories. No tower or similar structure may be used as habitable space or for any commercial purpose, other than the mechanical needs of the building

AUP

Notes:

[1]May exceed allowed height and width with an AUP.

B. Rooftop Structures in Residential Districts. Decks, railings, trellises, pergolas, and other similar structures may be built above a roof but less than the residential addition height limit of the district. These structures may exceed the residential addition height limit with an AUP. (Ord. 7787-NS § 2 (Exh. A), 2021)