Loudoun County Unincorporated

The maximum size of an accessory building is based on the size of the lot on which it is located as follows in Table 3.03-2.

Erection of temporary buildings or structures, including but not limited to, construction and sales trailers and storage of materials are permitted in conjunction with the construction of buildings and infrastructure or other land development, when limited to the duration of the construction.

A temporary dwelling unit is permitted during the construction of a permanent dwelling... May be erected and occupied for up to 12 months. The Zoning Administrator, at his discretion, may extend in 6-month increments; and Must be removed within 1 month of the completion of construction of the permanent dwelling.

Structures for temporary sales must not exceed 400 square feet in floor area nor be closer than 35 feet to a right-of-way or prescriptive easement of a road; A temporary Zoning Permit for temporary sales is valid for a period not to exceed 45 days.

Temporary sales of produce, Christmas trees, fireworks, and other seasonal goods, may be permitted on application for a temporary Zoning Permit to the Zoning Administrator.

A Farmers Market (Temporary) may be permitted on application for a temporary Zoning Permit to the Zoning Administrator, subject to Section 10.04.C.3.

A temporary Zoning Permit for a special event authorized pursuant to this section is limited to a maximum duration of 14 consecutive days... Within any single calendar year, the same lot or Parcel may host no more than 10 special events... A minimum of 14 days must lapse between special events... Special events on Residential property must contain a total gross acreage of at least 2 acres.

Special events may be permitted in all Zoning Districts on application for a temporary Zoning Permit to the Zoning Administrator, subject to the following standards and requirements.

All new structures associated with the Temporary Fire and/or Rescue Station must be set back a minimum of 15 feet from any lot line, or the minimum yard or setback of the underlying Zoning District, whichever is less restrictive.

The erection of a new structure and/or occupancy of a legally existing structure for a temporary Fire and/or Rescue Station is permitted under the following Emergency events: ...

Other temporary activities for compensation not otherwise specifically addressed in this Section 3.04 may be permitted upon application for a temporary Zoning Permit to the Zoning Administrator.

Historic Resources that existed prior to January 7, 2003, that do not meet the use-specific standards regarding minimum lot area, yards, and/or setbacks; and/or maximum floor area ratio and/or size, may be used for the subject use. Such structures may be expanded or enlarged, provided that such expansion or enlargement does not exceed 15% of the total floor area existing prior to January 7, 2003.

Accessory Dwellings must not exceed the following maximum size: In Transition, Rural, and JLMA districts, the lesser of 70% of gross floor area of principal structure and 2,500 sq ft. In Urban districts, the lesser of 70% and 1,200 sq ft. In Suburban districts, the lesser of 50% and 1,200 sq ft. Only 1 Accessory Dwelling is permitted on a lot of less than 20 acres.

The maximum lot size must not exceed 20 acres. The maximum density must not exceed 16 units per acre. The use must be located in areas served by public water and sanitary sewer, with access only from a collector road, and buildings and parking must be setback a minimum of 300 feet from Route 50. A minimum of 35% of the total land area must consist of parks and/or open space. The development must be designated age-restricted and at least 80% of the units must be occupied by at least 1 person 55 years of age or older per unit.

The area designated for the work component must be located on the ground level and occupy no more than 50% of the gross floor area of the Live/Work Dwelling.

Manufactured homes must be at least 900 square feet in floor area and a minimum of 19 feet in width; Roofs must be pitched with a minimum vertical rise of 4 inches for each 12 inches of horizontal run; ...

The maximum floor area ratio is 0.04. The minimum required yards are: Level I – small scale: 50 feet minimum from all lot lines; Level II – medium scale: 100 feet minimum from all lot lines; and Level III and IV – large scale and above: 150 feet minimum from all lot lines.

The minimum size of a dormitory is 200 square feet per seasonal laborer housed, and total square footage must not exceed 2,500 square feet. Dormitories must be set back at least 100 feet from off-site single-family detached dwellings.

No one Single-Family Attached (SFA) townhouse structure is permitted to exceed 8 dwelling units in a row. In TRC: SFD units must be no more than 2.5% of total dwelling units; blocks must include an alley; garages alley-loaded; buildings min 3 stories; front entrances min 3 ft above grade. In TC: total SFD and SFA units max 20% of total; land area max 10%.

No one Multifamily Stacked (MFS) structure is permitted to exceed 8 MFS Dwelling Units on the ground floor. In TRC: MFA permitted in Inner Core, Outer Core, TDSA; MFS only in TDSA with alley, garage, and entrance requirements. In TC: MFS in Town Center Core with similar design; max 30% of total units; land area max 10%. In TCC: only above first-floor nonresidential.