5 Things to Check Before Buying Land (That Most People Skip)

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The Most Expensive Mistakes Happen Before Closing

Real estate professionals have a saying: "You make your money when you buy, not when you sell."

The corollary nobody mentions: you lose your money when you skip due diligence.

Here are the 5 checks that separate smart land buyers from people writing large checks based on vibes and a Zillow listing.

1. Zoning — Not Just the Code, the OVERLAYS

Everyone checks the base zoning. "It's R-1, great, I can build a house."

But overlays change everything:

• Historic preservation overlay → design review, materials restrictions, hearings
• Coastal zone overlay → additional permits, height restrictions, setback multipliers
• Wildfire hazard overlay → fire-resistant materials, defensible space, access road standards
• Airport noise overlay → sound insulation requirements, height restrictions

The base zoning says "yes." The overlay says "yes, but..."

Overlays are not yet modeled in the Buildability Score™, so ask the planning counter about them before you close.

2. Flood Zone — The Insurance Surprise

FEMA flood zones are not binary. There's a massive difference between:

• Zone X: outside the Special Flood Hazard Area, so no federal insurance mandate (lenders may still ask for a policy).
• Zone AE (100-year floodplain): flood insurance required on a federally backed mortgage, and new construction must elevate.
• Zone VE (coastal high hazard): the same mandate, plus wave-velocity construction requirements.

Premiums depend on the building, its elevation and the policy; get a quote before you close. The gap between Zone X and Zone VE on the same street can be a deal-killer.

Buildability™ reads the FEMA flood zone live for any address where FEMA has mapped it.

3. Setbacks — Your Lot Is Smaller Than You Think

You buy a 10,000 sqft lot. You think you have 10,000 sqft to build on. Wrong.

After setbacks:

• Front: 25 ft
• Rear: 20 ft
• Each side: 5 ft

On a typical 50' x 200' lot, that leaves you with a 40' x 155' buildable area = 6,200 sqft.

You just lost 3,800 sqft of your lot to setbacks. And that's before parking, open space, and lot coverage limits.

Where the city's code has been read, Buildability™ fits the envelope to your lot from the district's setbacks.

4. Utility Access — The Expensive Assumption

"Utilities are at the street." Great. But:

• Water main at the street ≠ guaranteed connection capacity
• Sewer at the street ≠ capacity for your project's flow
• Electric at the property line ≠ adequate service for your intended use

Extending or upgrading utilities can cost more than the lot itself, and the provider quotes it, not the listing. That cost rarely shows up in a listing or a basic zoning check.

Buildability™ scores proximity to mapped power, water and road access; capacity is the provider's answer.

5. Permit Timeline — The Calendar Nobody Checks

Here are the steps nobody tells first-time land buyers about:

1. Pre-application meeting
2. Plan preparation
3. Plan check / review
4. Corrections + resubmit
5. Permit issuance

Each one takes calendar time, and every month of it is a month of carrying costs (mortgage, taxes, insurance) before you break ground. Ask the building department for its published review times and multiply by your own monthly carry.

Permit timelines are not part of the Buildability Score™; the building department's published review times are the record.

The 20-Second Checklist

Of these, the Buildability™ Report reads flood zone and utility proximity everywhere, and zoning and setbacks where the city's code has been read. Overlays and permit timelines are calls to the city.

cited, transparent factors. Live government APIs. 20 seconds. The Score is free.

The question isn't whether these 5 things matter. The question is whether you check them before or after you write the check.

Check your property now →