Vacant lot

815 Andrews Ave

Blue SeasDelray Beach17,315 sq ft lot (0.40 acres)Zoned RM
815 Andrews Ave in 2026815 Andrews 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
$1.39–3.03MMiddle half of nearby land sales, adjusted for lot size (12 sales), applied to this lot’s 17,315 sq ft.
Land price per sq ft, sized to this lot
$0$140$280

Sized to this lot, nearby land sales point to about $99 per sq ft. This parcel last sold for $2.1M in Apr 2021 ($121 per sq ft, the pink dot).

Does it pencil?

Build-and-sell pro forma
Supports a land price up to$947Kto build and sell a 4,450 sq ft home here at a 15% margin.
Doesn’t pencilAt $1.71M for the land:Loss $263K · −6.7%Needs $1,118/sq ft to hit 15% · assumed $877
Land $1.71MBuild $1.76MSoft costs $176KCarry $284KSelling $234KLoss $263KSale $3.9M
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
RM Multiple Family Residential (Medium Density)
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
17,315 sf 0.40 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
1105 Harbor Dr
Bought for a new home · Gulfstream Custom Builders
Jun 2023$2.55M13,508 sf$189424 m
913 Denery Ln
Bought for a new home · Tropical Custom Builders
Feb 2022$485K6,421 sf$76628 m
1132 NE 9th Ave
Vacant lot sale
Apr 2026$3.22M5,022 sf$641635 m
840 Denery Ln
Bought for a new home · Elite Property Development Ma
Sep 2023$1.4M12,898 sf$109684 m
800 Bond Way
Bought for a new home · SDGC
Oct 2022$950K7,610 sf$125700 m
801 Bond Way
Vacant lot sale
Aug 2024$1.9M12,994 sf$146709 m
1240 Seaspray Ave
Vacant lot sale
May 2023$2.5M10,616 sf$235726 m
1202 Seaspray Ave
Bought for a new home · Azure Development
Oct 2022$2.8M14,000 sf$200731 m