Vacant lotWaterfront

1342 SW 5th Ave

Boca IslandsBoca Raton8,799 sq ft lot (0.20 acres)Zoned R1D
1342 SW 5th Ave in 20261342 SW 5th Ave in 20172017 · Palm Beach County · Palm Beach Co.2026 · Palm Beach County · Palm Beach Co.

Drag to compare the lot in 2017 with 2026. The pink line is the surveyed parcel boundary.

What it’s worth as land

From recorded sales
$1.52–7.23MMiddle half of nearby land sales, adjusted for lot size (12 sales), applied to this lot’s 8,799 sq ft.
Land price per sq ft, sized to this lot
$0$658$1315

Sized to this lot, nearby waterfront land sales point to about $690 per sq ft. This parcel last sold for $975K in Nov 2022 ($111 per sq ft, the pink dot).

Does it pencil?

Build-and-sell pro forma
Supports a land price up to$3.63Mto build and sell a 4,800 sq ft home here at a 15% margin.
Doesn’t pencilAt $6.07M for the land:Loss $1.36M · −14.6%Needs $2,667/sq ft to hit 15% · assumed $1,940
Land $6.07MBuild $2.78MSoft costs $278KCarry $980KSelling $559KLoss $1.36MSale $9.31M
Boca Raton calibration

Calibrated on 96 Boca Raton deals. With these build costs the calculator's land budget is a median 97% of what the builders actually paid for the lot, and within 25% of it on 39 of the 96 (the old defaults came to 94%).

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
R1D Single-Family Residential
Flood zone
AE base flood elevation 7 ft
Lowest floor
8 ft+ BFE + 1 ft minimum under the Florida Building Code; confirm with the city
Waterfront
Yes dock, seawall and setback rules apply
Lot size
8,799 sf 0.20 acres
Ownership
Private owner

Setbacks, height and lot coverage depend on the zoning district; see Boca Raton’s zoning code (Chapter 28). Confirm with a surveyor and the city before you buy.

Nearby land sales

Waterfront · last 5 years
AddressSoldPriceLot$/sq ftAway
1175 SW 4th Ave
Bought for a new home · TCG Florida
Sep 2024$1.07M9,256 sf$116193 m
400 SW 14th Pl
Bought for a new home · Boca Development & Construction
May 2022$1.36M7,514 sf$182240 m
252 SW 14th Pl
Bought for a new home · TCG Florida
Jul 2024$1.33M8,107 sf$164324 m
1560 SW 6th Ave
Bought for a new home · Specter Services
Jan 2023$1.63M10,655 sf$153542 m
1520 Royal Palm Way
Bought for a new home · SRD Building
May 2023$10.5M14,976 sf$7011.6 km
368 S Maya Palm Dr
Bought for a new home · SRD Building
Dec 2025$9.2M14,305 sf$6431.7 km
251 W Key Palm Rd
Vacant lot sale
Aug 2025$9M15,429 sf$5831.7 km
169 W Coconut Palm Rd
Bought for a new home · Hanna Homes
Jul 2022$8.2M15,316 sf$5351.8 km