Vacant lot

624 SW 6th Ave

Rosemont Park DelrayDelray Beach9,953 sq ft lot (0.23 acres)Zoned R-1-A
Aerial of 624 SW 6th 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
$239–358KMiddle half of nearby land sales, adjusted for lot size (12 sales), applied to this lot’s 9,953 sq ft.
Land price per sq ft, sized to this lot
$0$29$58

Sized to this lot, nearby land sales point to about $33 per sq ft. This parcel last sold for $230K in Apr 2025 ($23 per sq ft, the pink dot).

Does it pencil?

Build-and-sell pro forma
Left over for the landNothingAt $454/sq ft, a 1,750 sq ft home here costs more to build, carry and sell than it brings in at a 15% margin. It starts to work above about $476/sq ft, or with a smaller or cheaper build.
Doesn’t pencilAt $230K for the land:Loss $166K · −20.9%Needs $660/sq ft to hit 15% · assumed $454
Land $230KBuild $569KSoft costs $57KCarry $57KSelling $48KLoss $166KSale $795K
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
9,953 sf 0.23 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
805 SW 7th Ave
Vacant lot sale
Aug 2024$230K10,023 sf$23223 m
403 SW 5th Ave
Vacant lot sale
Oct 2024$110K6,434 sf$17324 m
755 SW 4th St
Vacant lot sale
May 2024$225K5,907 sf$38347 m
415 SW 4th St
Vacant lot sale
Feb 2024$300K8,546 sf$35369 m
322 SW 5th Ave
Vacant lot sale
Dec 2021$180K6,804 sf$26423 m
300 SW 5th Ave
Vacant lot sale
Mar 2023$705K25,927 sf$27477 m
413 SW 10th St
Bought for a new home · Majestic Design & Construction
Jun 2022$150K5,258 sf$29510 m
601 SW 3rd St
Bought for a new home · J&V Residential Services
Mar 2023$120K6,020 sf$20536 m