What does it cost to build a house in Boca Raton in 2026?

As of November 2026, building a new house in Boca Raton costs an estimated $240 to $580 per square foot before the lot, depending on how high-end the house is. On their permits, builders declare a median $221 per square foot. That’s the figure they give the city, and it usually runs well below the real cost.

$240–580estimated build cost per sq ft, builder grade to ultra-luxury, before the lot

$221declared per sq ft on new-home permits (median of 282 finished houses)

$3.38Mmedian lot bought for a new home on the water in the past two years ($1.35M inland)

$1,410median sale per sq ft of a new house on the water ($871 inland)

Build cost per square foot

The estimate, and what builders declare.

Groundbreak’s build calculator prices a house by what homes like it sell for: $240 a square foot at builder grade, up to $580 for ultra-luxury. Declared permit values barely move with price: a median $69 to $228 a square foot across the tiers.

How the calculator is tested →

Build cost by tier

$ per sq ft

Ultra-luxurySells for $1,000+ a sq ft · 65 houses

$580

LuxurySells for $700–999 a sq ft · 45 houses

$380

UpscaleSells for $450–699 a sq ft · 32 houses

$335

Builder gradeSells for under $450 a sq ft · 9 houses

$240

Calculator’s build cost
Declared on permits in Boca Raton, middle half
Declared, median

Tested against 96 recorded Boca Raton build-and-sell 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%).

Declared on permits, per sq ft

Every finished house: $221 median of 282 houses; middle half $185–$284
On the water: $256 79 houses; middle half $218–$311
Inland: $205 203 houses; middle half $175–$270

The declared value is the builder’s own figure for the construction work, and it sets the permit fee. It leaves out the lot and often much of the real cost, so read it as a floor, not a budget.

Both are per square foot of the tax roll’s total building area, garage and covered areas included, which runs larger than the area under air.

The lot, and the finished price

What land costs, and what new homes sell for.

Since November 2024, lots bought for new homes went for a median $3.38M on the water and $1.35M inland. Land sold for a median $433 a square foot on the water and $152 inland. Finished new houses have sold for a median $1,410 a square foot on the water and $871 inland.

Lots and land →

Lots bought for new homes

Since November 2024

On the water15 lots, a median 13,377 sq ft

$3.38M

Inland87 lots, a median 9,344 sq ft

$1.35M

Middle half in Boca Raton
Median

New houses sold

$ per sq ft

On the water34 sales

$1,410

Inland117 sales

$871

Middle half in Boca Raton
Median

Every lot is priced differently: see what builders paid nearby with a lot report for any address, or browse every vacant lot. Waterfront land in Boca Raton sells for the most in Royal Palm Yacht & Country Club ($701 a sq ft), Golden Harbour ($379 a sq ft) and Boca Harbour ($220 a sq ft).

A worked example

Two new houses, priced out.

The typical new house on each side of the water, priced with the calculator’s own starting numbers. These are estimates, not quotes: a builder’s bid should replace the build cost.

A new house inland

5,250 sq ft · Luxury

Lot $1.35MBuild $2MSoft costs $200K

Lot: $1.35MThe median lot bought for a new home inland since November 2024 (87 lots, a median 9,344 sq ft).
Build: $2M5,250 sq ft, the median new house inland on the tax roll, at $380 a sq ft: the calculator’s Luxury tier, for homes that sell for about $871 a sq ft inland.
Soft costs: $200K10% of the build, the calculator’s default: design, engineering, permits and insurance.

Estimated total, before financing$3.54MFor scale: at $871 a sq ft, a new house that size inland would sell for about $4.57M.

A new house on the water

6,100 sq ft · Ultra-luxury

Lot $3.38MBuild $3.54MSoft costs $354K

Lot: $3.38MThe median lot bought for a new home on the water since November 2024 (15 lots, a median 13,377 sq ft).
Build: $3.54M6,100 sq ft, the median new house on the water on the tax roll, at $580 a sq ft: the calculator’s Ultra-luxury tier, for homes that sell for about $1,410 a sq ft on the water.
Soft costs: $354K10% of the build, the calculator’s default: design, engineering, permits and insurance.

Estimated total, before financing$7.27MFor scale: at $1,410 a sq ft, a new house that size on the water would sell for about $8.6M.

Run it with your own numbers: open a lot report for any address. Its calculator starts from the land sales and new-home prices around that lot. The calculator also counts interest over the build, which takes a median 23.2 months from permit to certificate of occupancy (23.9 on the water).

How long it takes

A median 23.2 months from permit to certificate of occupancy in Boca Raton, stage by stage and builder by builder: how long it takes to build.

Pick a builder

Compare every builder on build time, waterfront work and sales, or match builders to where you want to build.

How the numbers work

Where the calculator’s build costs come from, and how they’re tested against recorded sales: the lot calculator.

Declared values are from new-home permits on Boca eHub; lot and sale prices from recorded deeds on the county parcel roll; square feet are the tax roll’s total building area. Build costs, totals and resale figures are Groundbreak’s estimates, not quotes or appraisals. Figures as of November 2026. How the data works.