Vacant lot

870 Palm Ave E

Boca Ratone Por La MarBoca Raton8,250 sq ft lot (0.19 acres)Zoned R1C
870 Palm Ave E in 2026870 Palm Ave E 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
$1.47–1.79MMiddle half of nearby land sales, adjusted for lot size (12 sales), applied to this lot’s 8,250 sq ft.
Land price per sq ft, sized to this lot
$0$174$347

Sized to this lot, nearby land sales point to about $200 per sq ft. This parcel last sold for $160K in Jul 1990.

Does it pencil?

Build-and-sell pro forma
Supports a land price up to$1.32Mto build and sell a 4,900 sq ft home here at a 15% margin.
TightAt $1.65M for the land:Profit $322K · 7.0%Needs $1,041/sq ft to hit 15% · assumed $945
Land $1.65MBuild $1.86MSoft costs $186KCarry $332KSelling $278KProfit $322KSale $4.63M
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
R1C 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
No
Lot size
8,250 sf 0.19 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

Off the water · last 5 years
AddressSoldPriceLot$/sq ftAway
241 E Fern Dr
Vacant lot sale
May 2026$2.2M10,110 sf$21899 m
800 W Fern Dr
Vacant lot sale
Jul 2026$2.5M9,971 sf$251119 m
799 Park Dr W
Bought for a new home · Collin Building Group
Jan 2026$1.68M7,976 sf$210143 m
735 W Fern Dr
Bought for a new home · Beach to Bay Custom Builders
Dec 2021$1.32M11,260 sf$118162 m
107 SE Olive Way
Bought for a new home · TGR Design Build
Dec 2025$1.38M6,368 sf$216181 m
870 E Boca Raton Rd
Bought for a new home · Bealecon Construction
Sep 2025$1.57M9,370 sf$168283 m
123 NE Wavecrest Way
Bought for a new home · Core 4 Homes
Jan 2025$1.55M8,838 sf$175367 m
141 NE Wavecrest Way
Bought for a new home · M I Bobcat
Dec 2023$1.5M8,490 sf$177388 m