Vacant lot

51 NW 9th Ave

West Side Heights DelrayDelray Beach15,599 sq ft lot (0.36 acres)Zoned R-1-A
Aerial of 51 NW 9th 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
$265–530KMiddle half of nearby land sales, adjusted for lot size (12 sales), applied to this lot’s 15,599 sq ft.
Land price per sq ft, sized to this lot
$0$27$54

Sized to this lot, nearby land sales point to about $27 per sq ft. This parcel last sold for $180K in Jul 2006.

Does it pencil?

Build-and-sell pro forma
Supports a land price up to$47Kto build and sell a 1,900 sq ft home here at a 15% margin.
Doesn’t pencilAt $421K for the land:Loss $308K · −43.5%Needs $648/sq ft to hit 15% · assumed $372
Land $421KBuild $437KSoft costs $44KCarry $70KSelling $42KLoss $308KSale $707K
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
R-1-A Single Family Residential
Flood zone
X
Lowest floor
—
Waterfront
No
Lot size
15,599 sf 0.36 acres
Ownership
Private owner

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
106 NW 10th Ave
Vacant lot sale
Jun 2023$380K17,311 sf$22167 m
55 NW 11th Ave
Vacant lot sale
Dec 2021$151K6,861 sf$22200 m
521 NW 2nd St
Bought for a new home · Pulte Home
Jan 2023$162K7,532 sf$22381 m
515 NW 2nd St
Bought for a new home · Pulte Home
Jan 2023$162K7,532 sf$22393 m
259 NW 9th Ave
Vacant lot sale
Dec 2022$230K5,441 sf$42424 m
114 NW 4th Ave
Vacant lot sale
Apr 2024$475K10,372 sf$46454 m
117 SW 10th Ave
Vacant lot sale
Jun 2026$295K6,782 sf$43476 m
115 NW 4th Ave
Vacant lot sale
Apr 2026$525K10,372 sf$51519 m