Vacant lot

3644 SW 21 St

SunsetFort Lauderdale8,939 sq ft lot (0.21 acres)Zoned RS-8
Aerial of 3644 SW 21 St, January 20262026 · Broward County · Broward Co.

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

What it’s worth as land

From recorded sales
$161–206KMiddle half of nearby land sales, adjusted for lot size (12 sales), applied to this lot’s 8,939 sq ft.
Land price per sq ft, sized to this lot
$0$25$50

Sized to this lot, nearby land sales point to about $23 per sq ft.

Does it pencil?

Build-and-sell pro forma
Left over for the landNo fair defaultOur build costs are tested on new homes selling for $400 or more a sq ft, and here they sell for about $250. Enter the build cost per sq ft you expect below to see what the land supports.
Land $206KBuild $624KSoft costs $62KCarry $71KSelling $44KLoss $281KSale $725K
Fort Lauderdale calibration

Calibrated on 148 Fort Lauderdale deals. With these build costs the calculator's land budget is a median 100% of what the builders actually paid for the lot, and within 25% of it on 87 of the 148 (the old defaults came to 41%).

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
RS-8 Residential Single Family/Low Medium Density
Flood zone
X
Lowest floor
—
Waterfront
No
Lot size
8,939 sf 0.21 acres
Ownership
Private owner

Setbacks, height and lot coverage depend on the zoning district; see Fort Lauderdale’s Unified Land Development Regulations. Confirm with a surveyor and the city before you buy.

Nearby land sales

Off the water · last 5 years
AddressSoldPriceLot$/sq ftAway
3451 SW 19 St
Bought for a new home · Citadel Property Construction
Apr 2024$117K7,350 sf$16546 m
3460 SW 18 St
Bought for a new home · Citadel Property Construction
Apr 2024$217K13,647 sf$16561 m
3441 SW 19 St
Bought for a new home · Citadel Property Construction
Apr 2024$125K7,875 sf$16565 m
3917 SW 13 Ct
Bought for a new home
Nov 2024$190K6,500 sf$291.0 km
2000 SW 31 Ave
Vacant lot sale
Oct 2024$259K8,087 sf$321.1 km
1971 SW 30 Ter
Vacant lot sale
Mar 2023$213K10,018 sf$211.2 km
1951 SW 30 Ter
Bought for a new home · Citadel Property Construction
Sep 2025$225K10,009 sf$221.2 km
1810 SW 30 Ter
Bought for a new home · H&M Housing Land Development
Sep 2023$224K13,789 sf$161.3 km