Single-family. Duplex and townhouse yards are listed only for lawfully existing two-family dwellings and townhouses protected by §24-86; new ones are not permitted.
What's allowed in ARS-2
| Use | Status | What that means |
|---|---|---|
| Single-family home | Allowed | listed as a permitted use |
| Duplex / two-family | Limited | allowed only in a restricted form (original-use only, upper floors only, specific lot types); see notes |
| Townhouse | Limited | allowed only in a restricted form (original-use only, upper floors only, specific lot types); see notes |
| Multi-family (3+ units) | Not allowed | not allowed (excluded by the use list or by definition) |
| 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) | 7,500 sq ft | |
| Units covered by that minimum | 1 | |
| Lot area per additional unit | — | |
| Maximum density | — | |
| Minimum lot width | 75 ft | |
| Maximum height | 35 ft | |
| Maximum lot coverage | 45% |
How many units can a lot hold in ARS-2?
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 | lot 5,000 sqft is under the 7,500 sqft minimum (nonconforming) |
| 7,500 sq ft | 1 | 7,500 sqft minimum lot for 1 unit(s) |
| 10,000 sq ft | 1 | 7,500 sqft minimum lot for 1 unit(s) |
| 15,000 sq ft | 1 | 7,500 sqft minimum lot for 1 unit(s) |
| 21,780 sq ft (½ acre) | 1 | 7,500 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
Lot 7,500 sq ft / 75 ft (lots created after the code's effective date). Max impervious 45% (impervious, not building coverage). Height 35 ft. Citywide 35-ft height cap (§24-91(a)). Garage apartments (one per lot) are permitted only on double-frontage lots at least 50 ft wide in a residential district; max 25 ft tall and 75% of principal GFA; no rentals under 90 days (§24-151(j)). Guest houses may not be rented or have kitchens (§24-151(i)). Use statuses also checked against §24-102 Table 3 (permitted use matrix, which says the district text controls).
Compiled from the official code text (AB LDR §24-106). Zoning changes by ordinance and parcels can be rezoned — confirm on the official zoning map and with Atlantic Beach planning staff before you rely on it. Not legal advice.