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How many lots fit on my acres?
Type your land's size and your own allowances for roads and open space. We count lots at Texas SB 15's 3,000 sq ft minimum. It's free, with no sign-up.
Not legal advice; confirm with the city.
Count the lots
It counts lots by area only. Lot shape, streets layout, slope, flooding and your city's rules still apply (Planner check needed).
How many acres is that?
One acre is 43,560 sq ft, about 0.4047 hectares. SB 15's 5-acre tract is 217,800 sq ft, about 2.0234 hectares.
Type in any box and the other two follow.
The rules we use
Each line cites its section on the official code on statutes.capitol.texas.gov, read on 1 Nov 2026. SB 15 is Chapter 1127 of 2025.
| Section | What it says |
|---|---|
| Local Government Code §211.052(a)(2)(B) | Only a tract of 5 acres or more. |
| Local Government Code §211.054(1)(A) | The city must allow lots of 3,000 sq ft; it can't require bigger. |
| Local Government Code §211.054(1)(B), (C) | It can't require a lot wider than 30 ft or deeper than 75 ft. |
| Local Government Code §211.055(a)(1) | On a lot of 4,000 sq ft or less: setbacks no more than 15 ft front, 10 ft rear, 5 ft sides. |
| Local Government Code §211.055(a)(5) | No more than 30% open space or permeable surface. |
The 3,000 sq ft lot is the most a city can require. The 30% open space cap is per lot, so it doesn't cut the count.
Arlington's rule: Arlington Unified Development Code, amended through Ord. 25-059 (City PDF), Section 5.5.6. Arlington's small-lot rules ask for 35% common open space; state law caps it at 30% (§211.055): planner check. See Arlington's zones.
What it doesn't check
- Whether your land is a covered tract: in a big enough city, zoned single-family, with no recorded plat (Planner check needed).
- Distance rules for airports, military bases and training centres (Planner check needed). The free SB 15 check reads these for an address.
- Your road, open space and other shares. They are your assumptions, not rules (Planner check needed).
- Land value. We hold no sales figures for it.
Find 5-acre tracts
Find 5-acre tracts in Austin, Dallas, San Antonio and El Paso: 1 credit a tract checked.
Sign in, then run the SB 15 check on an address in one of those cities. The finder opens under its answer. New here? Create a free account.
Go further with a paid plan
A paid plan runs full site reports and area scans across Texas.
Starter: US$39 a month for 100 credits. Run full site reports, area scans and letter drops.
Or create a free account first. No card needed.
Not legal advice; confirm with the city.