Vacant lotWaterfront
120 NE 5th Ave
Kinney & GatesBoca Raton18,618 sq ft lot (0.43 acres)
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$5.66–8.4MMiddle half of nearby land sales, adjusted for lot size (12 sales), applied to this lot’s 18,618 sq ft.
Land price per sq ft, sized to this lot
$0$361$722
Sized to this lot, nearby waterfront land sales point to about $315 per sq ft.
Does it pencil?
Build-and-sell pro formaSupports a land price up to$3.77Mto build and sell a 7,400 sq ft home here at a 15% margin.
Doesn’t pencilAt $5.86M for the land:Loss $600K · −5.1%Needs $1,992/sq ft to hit 15% · assumed $1,588
Land $5.86MBuild $4.29MSoft costs $429KCarry $1.06MSelling $705KLoss $600KSale $11.8M
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
- —
- 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
- 18,618 sf 0.43 acres
- Ownership
- Company often a builder or investor
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| Address | Sold | Price | Lot | $/sq ft | Away |
|---|---|---|---|---|---|
| 250 NE 5th Ave Bought for a new home · Mark Timothy | Nov 2021 | $22M | 70,354 sf | $313 | 157 m |
| 175 NE Spanish Trl Bought for a new home · Firstwater Building & Design | Feb 2025 | $7.7M | 16,466 sf | $468 | 200 m |
| 372 NE 5th Ave Vacant lot sale | Apr 2022 | $29.8M | 68,908 sf | $432 | 247 m |
| 511 Silver Ln Bought for a new home · M I Bobcat | Oct 2024 | $3.38M | 8,908 sf | $379 | 840 m |
| 989 Marble Way Bought for a new home · National Custom Homes IV | Jan 2022 | $2.6M | 13,129 sf | $198 | 1.0 km |
| 840 Coquina Way Bought for a new home · Blackfin Contractors L L C | Apr 2023 | $4.2M | 11,570 sf | $363 | 1.0 km |
| 839 Orchid Dr Bought for a new home · Bealecon Construction | Jun 2024 | $5.1M | 10,616 sf | $480 | 1.0 km |
| 511 Golden Harbour Dr Bought for a new home · M I Bobcat | May 2026 | $3.38M | 8,507 sf | $397 | 1.1 km |