Dimensional standards
Servicing
- Applies near
- Town Branch
- Geographic extent
- All lands within jurisdiction susceptible to inundation from base flood with drainage area greater than 100 acresacre43,560 square feet — about the size of an American football field without the end zones.; also specific area along north side of Town Branch between Wirt Street SW and Harrison Street SE for non-residential building.
Uses
Permitted by right14
- Agricultural uses such as general farming, pasturing, grazing, outdoor plant nurseries, horticulture, truck farming, forestry, sod farming, and wild crop harvesting
- Public and private recreational uses and activities such as parks, day camps, picnic grounds, golf courses, boat launching and swimming areas, hiking and horseback riding trails, wildlife and nature preserves, game farms, fish hatcheries and fishing areas
- Accessory residential uses such as gardens, play areas, and loading areas
- Accessory industrial and commercial uses such as parking and loading areas
- Incidental structures not exceeding 840 square feet of floor area
- Utility lines, road crossings, and private drives or private access easements
- Road crossings consistent with DCSM
- Low Impact Stormwater Management Best Management Practices
- Alterations of the floodplain associated with permitted or special exception uses
- Non-residential building along north side of Town Branch between Wirt Street SW and Harrison Street SE (with conditions)
- Residential uses accessory to single family detached and attached dwellings
- New construction or additions to existing structures in developed areas where minor floodplain is defined by overland relief
- Storm water management facilities
- Capital Improvement Projects
Conditional / special use6
- Structures accessory to uses and activities
- Temporary uses such as circuses, carnivals
- Storage of materials and equipment
- Other uses and activities provided they cause no increase in flood heights
- Channelization and channel modifications of primary channel in major floodplain
- Substantial improvements to historic structures
Prohibited1
Extracted standards
5 individual requirements pulled out of this section’s prose, each with the sentence it came from.
Density
- Major FloodplainFloodplainLand expected to flood at a stated frequency, where building carries extra conditions. excluded from residential density calculations
Areas within the Major Floodplain shall be excluded as part of the land area for residential density calculations (but not for commercial density calculations).
Other
- Floodproofing requirements for non-residential building along Town Branch
All floors below the 100-year flood level shall be floodproofed up to the 100-year flood level, and the building, any building extensions, and/or accessory buildings shall be designed to resist uplift and/or horizontal water pressure.
- Maximum improvement value for existing structures50 pct
The proposed changes to a structure are of an extent or amount totaling fifty (50) percent or less of its market value and such changes are undertaken in conformance with the VA USBC.
- Maximum incidental structure floor area840 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.
Incidental structures, not exceeding 840 square feet of floor area, associated with permitted or approved special exception uses in the Floodplain Overlay District.
- Maximum recreational vehicle stay30 days
under no circumstances shall recreational vehicles be allowed in Major Floodplain for a period exceeding thirty (30) days.
From the ordinance
The Floodplain Overlay District regulations shall apply to all privately and publicly owned lands within the jurisdiction of the Town of Leesburg that are susceptible to being inundated by water from the base flood and having a drainage area greater than one hundred (100) acres.