Herndon

Craft breweries, micro-cideries, and brewpubs shall produce not more than 5,000 barrels per year.

Notwithstanding the provisions of Table 78-110.4(e)(3)b., Landscape Buffer Classifications, if an eating establishment is adjacent to existing single-family detached development, it shall provide a transitional landscape screen, a minimum of 20 feet in width along the property line which the single-family detached development abuts.

The following standards apply to all accessory uses and structures: ... (3) Subordinate in nature. ... An accessory use may not exceed 25 percent of the floor area shared with the principal use, and any combination of more than two accessory uses may not exceed 50 percent of the floor area shared with the principal use, unless otherwise specified.

Accessory uses and structures standards: height 15 ft, setbacks 2 ft, floor area 50% of principal, etc.

Accessory structures in residential district shall meet the following standards: ... (2) Maximum height. The height of an accessory structure shall not exceed 15 feet. (3) Maximum floor area. On any lot, the combined floor area of all detached accessory structures shall not be greater than 50 percent of the floor area of the principal structure...

Accessory structures in multi-family and nonresidential districts shall meet the following standards: ... (3) Maximum height. The height of an accessory structure other than a parking structure shall not exceed the lesser of the height of the principal structure on the site, or 18 feet. ... (4) Maximum floor area. The maximum floor area of all structures, other than parking structures, accessory to principal multi-family and nonresidential uses shall not exceed ten percent of the area of the lot...

The following standards shall apply to features such as fences, walls, retaining walls, gate houses, trash enclosures, refuse containers and screening enclosures: (1) Within historic district overlay. ... (2) ARB review. ... (3) Development standards. ...

Parapets, penthouses for equipment ... are permitted as features accessory to the principal structure, and subject to the following: ... (3) Height limit. Features on multifamily residential structures shall not exceed 25 feet over the prescribed height limit... and features on residential structures shall not exceed 12 feet over the roof of the top story...

Outdoor display areas shall not block access to the building or otherwise impair circulation and safety; (2) Located outside right-of-way. ...

No vehicles for sale shall be parked in the required setback... The number of vehicles associated with the accessory use shall not exceed ten vehicles...

Accessory dwelling unit standards: one per lot, max 1,200 sqft internal/attached or 900 sqft detached, 10 ft setbacks, 1 parking space, max 2 bedrooms, max 3 occupants.

An accessory dwelling unit is permitted in the zoning districts specified in table 78-80.2(c) and shall comply with the following standards: ... (5) Size limit. a. Internal or attached. The floor area of an internal or attached accessory dwelling unit shall not exceed 40 percent of the gross floor area of the principal dwelling, or 1,200 square feet, whichever is less. b. Detached. The maximum gross floor area of a detached accessory dwelling unit shall not exceed 900 square feet. ... (8) Limit on bedrooms and occupancy. An accessory dwelling unit shall not contain more than two bedrooms or be occupied by more than three persons. (10) Parking. There shall be a minimum of one off-street parking space...

Antenna standards: small dish 39 in screened, large dish 5 ft setback and 40% visibility, amateur radio max 75 ft height and 1/5 height setback.

Bed and breakfast establishments permitted by special exception in R-15 and R-10 and historic overlay; max 3 guest rooms, max 6 guests, max 7-day rental.

Bed and breakfast establishments may be established in owner- or operator-occupied single-family detached homes, including normal residential accessory structures existing as of March 1, 2007, in the R-15 and R-10 zoning districts; and in the historic district overlay.

Vehicle rental is permitted by special exception as an accessory to hotels, motels, inns and conference centers and shall comply with the following standards: ... (3) Limit on Parking Area. The area used for the parking and storage of vehicles for rent shall be no greater than 10 percent of the site area. (4) Limits of Vehicle Location. Vehicles shall be located at least 250 feet from schools, daycare centers, residential uses, or undeveloped land in residential zoning districts.

Other accessory use standards: car rental 10% site area, 250 ft from residential; used vehicle sales 40,000 sqft min, 10 vehicles; caretaker 1,000 sqft, 1 floor; daycare 20% floor area; outdoor storage 1,000 gal flammable underground.

Used vehicle sales is permitted by special exception as an accessory to new vehicle sales and vehicle service and repair uses and shall comply with the following standards: ... (2) Minimum Area. The subject property for the principal and accessory use shall have an area of at least 40,000 square feet.

Only one unit per principal use is allowed, and it shall be occupied by at least one person... It shall not exceed 1,000 square feet in area.

Not exceed an amount of floor area equivalent to 20 percent of the total floor area of the principal use to which it is accessory.