Southampton, NY Zoning: R40 = Residential 40,000 sq ft Minimum Lot
In the **Town of Southampton, NY**, **R40** designates a **Residence District** requiring a **minimum lot area of 40,000 square feet (~0.92 acres)** for single-family detached homes and townhouses.
R40 District Standards (Southampton Town Code §330)
| Parameter | Requirement |
|---|
| Min. Lot Area | 40,000 sq ft |
| Min. Lot Width | 150 ft |
| Max. Lot Coverage | 30% (all structures + impervious) |
| Front Yard Setback | 25 ft |
| Side Yard Setback | 15 ft (each side) |
| Rear Yard Setback | 10 ft |
| Max. Building Height | 35 ft (2.5 stories) |
| Floor Area Ratio (FAR) | Typically ~0.15–0.20 (varies by sub-area) |
Context & Purpose
- Low-density residential** — preserves open space, rural character, aquifer recharge (Southampton sits on **sole-source aquifer**).
- Common in:** Bridgehampton, Water Mill, Sagaponack, North Sea, Noyac — **Hamptons "estate" zones**.
- Contrast: R20 (20,000 sq ft), R10 (10,000 sq ft), R5 (5,000 sq ft) — higher density toward villages.
- Townhouses permitted** with same lot area *per unit* (i.e., 40K sq ft per townhouse lot).
Related Overlays
- Aquifer Protection Overlay District — stricter clearing, fertilizer, septic rules.
- Tidal Wetlands / Freshwater Wetlands — additional buffers (50–100 ft).
- Historic Districts — design review (Bridgehampton, Sag Harbor).
Verify current code:** Southampton Town Code Ch. 330 or consult Town Building Dept. Zoning maps at southamptontownny.gov.
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