Downtown form-based district. Multi-family and townhouses are permitted up to 40 du/ac, with lot-type standards.
What's allowed in JCBD
| Use | Status | What that means |
|---|---|---|
| Single-family home | Limited | allowed only in a restricted form (original-use only, upper floors only, specific lot types); see notes |
| Duplex / two-family | Allowed | listed as a permitted use |
| Townhouse | Allowed | listed as a permitted use |
| Multi-family (3+ units) | Allowed | listed as a permitted use |
| Accessory dwelling unit (ADU) | Limited | allowed only in a restricted form (original-use only, upper floors only, specific lot types); see notes |
Lot and building standards
| Standard | Value | Code section |
|---|---|---|
| Minimum lot area (first units) | 4,000 sq ft | |
| Units covered by that minimum | — | |
| Lot area per additional unit | — | |
| Maximum density | 40 units/acre | |
| Minimum lot width | 40 ft | |
| Maximum height | 35 ft | |
| Maximum lot coverage | 90% |
How many units can a lot hold in JCBD?
Applying the district's lot-area and density rules (the stricter one wins) to typical lot sizes:
| Lot size | Max units | Rule that limits it |
|---|---|---|
| 5,000 sq ft | 1 | 4,000 sqft minimum lot for 1 unit(s) |
| 7,500 sq ft | 1 | 4,000 sqft minimum lot for 1 unit(s) |
| 10,000 sq ft | 1 | 4,000 sqft minimum lot for 1 unit(s) |
| 15,000 sq ft | 1 | 4,000 sqft minimum lot for 1 unit(s) |
| 21,780 sq ft (½ acre) | 1 | 4,000 sqft minimum lot for 1 unit(s) |
Multi-unit numbers only matter where duplexes or multi-family are allowed above. In Jacksonville the Future Land Use Map category can cap density further, and overlays (Riverside/Avondale, San Marco, Springfield and others) can change the numbers.
Notes from the code
§34-623(b)(21): multi-family dwellings and townhouses per §34-623(f), max 40 units per acre. Auxiliary dwelling unit permitted. Table 34-623.3 lot types: multi-family building lot 40-300 ft wide, 4,000-90,000 sq ft, up to 90% coverage; row/townhouse lot 25 ft wide min, 1,600-3,840 sq ft, up to 80%; urban single-family lot 30 ft wide, 3,500 sq ft min, 55%. No height in the table; the charter's 35 ft cap applies.
Compiled from the official code text (JB LDC §34-623). Zoning changes by ordinance and parcels can be rezoned — confirm on the official zoning map and with Jacksonville Beach planning staff before you rely on it. Not legal advice.