Vacant lot

233 S Swinton Ave

Delray Beach10,363 sq ft lot (0.24 acres)Zoned RM
Aerial of 233 S Swinton Ave, 20262026 · Palm Beach County · Palm Beach Co.

Aerial from 2026, the newest available. The pink line is the surveyed parcel boundary.

What it’s worth as land

From recorded sales
$767K–1.01MMiddle half of nearby land sales, adjusted for lot size (12 sales), applied to this lot’s 10,363 sq ft.
Land price per sq ft, sized to this lot
$0$78$155

Sized to this lot, nearby land sales point to about $93 per sq ft. This parcel last sold for $310K in Jul 2019 ($30 per sq ft, the pink dot).

Does it pencil?

Build-and-sell pro forma
Supports a land price up to$988Kto build and sell a 4,550 sq ft home here at a 15% margin.
PencilsAt $964K for the land:Profit $629K · 15.7%Needs $876/sq ft to hit 15% · assumed $883
Land $964KBuild $1.8MSoft costs $180KCarry $207KSelling $241KProfit $629KSale $4.02M
Delray Beach calibration

Calibrated on 83 Delray Beach deals. With these build costs the calculator's land budget is a median 98% of what the builders actually paid for the lot, and within 25% of it on 47 of the 83 (the old defaults came to 85%).

A quick pro forma, not an appraisal. Every number is editable; the starting points come from city records, and build cost is an assumption to replace with a builder’s bid.

The rules

City GIS and parcel roll
Zoning
RM Multiple Family Residential (Medium Density)
Flood zone
X
Lowest floor
—
Waterfront
No
Lot size
10,363 sf 0.24 acres
Ownership
Company often a builder or investor

Setbacks, height and lot coverage depend on the zoning district; see Delray Beach’s Land Development Regulations (Chapter 4, Zoning). Confirm with a surveyor and the city before you buy.

Nearby land sales

Off the water · last 5 years
AddressSoldPriceLot$/sq ftAway
218 S Swinton Ave
Bought for a new home · Beachfront Builders
Oct 2023$850K6,447 sf$13284 m
301 SW 1st Ave
Bought for a new home · Acassa Construction
Aug 2025$725K8,398 sf$86148 m
228 SE 3rd Ave
Bought for a new home · Rizk Development
Feb 2025$675K5,998 sf$113234 m
238 SW 2nd Ave
Bought for a new home · The Levi Group
Oct 2023$560K6,551 sf$85249 m
214 SW 2nd Ave
Bought for a new home · Amara Builders
Jan 2026$1.2M13,303 sf$90265 m
322 SE 3rd Ave
Bought for a new home · Atlantic Disaster Recovery
Oct 2025$650K9,940 sf$65294 m
245 SE 4th Ave
Bought for a new home · Sandbar Builders
Feb 2022$755K7,553 sf$100393 m
209 SE 5th St
Bought for a new home · Marc Julien Homes
Sep 2024$940K5,001 sf$188399 m