Due Diligence

    The 5 Phone Calls That Can Kill a Land Deal

    How a few conversations before closing can save you thousands of dollars — and months of frustration.

    9 min read· Updated 2026-06-10· By LandGauge

    Most land deals don't die because of price. They die because something *structural* about the parcel — zoning, access, utilities, septic, or power — was never actually verified.

    The good news: the agencies that control those answers will usually tell you the truth, for free, over the phone. You just have to call them before you wire the money.

    This is the short list of conversations we recommend on every parcel, in the order we make them. Use it as a starting framework — not legal, engineering, or zoning advice. Always confirm with the agencies and licensed professionals for your specific parcel and jurisdiction.

    The 5-Call Land Due Diligence Checklist

    AgencyWhy CallQuestions to AskDeal Risk if Ignored
    1. Planning & ZoningConfirm what you can legally build, lot size, setbacks, and overlays.What is the current zoning? Is my intended use permitted by right or conditional? Minimum lot size, frontage, and setbacks? Any overlays (flood, hillside, airport, historic)? Open code enforcement on the parcel?Buying a parcel that legally cannot support your plan — entitlement years, not weeks.
    2. Public Works / Road Dept.Verify legal and physical access plus any planned road work.Is the access road public or private? Maintained year-round? Any recorded easement of record? Planned widening, realignment, or impact fees? Driveway permit requirements?Landlocked parcel, seasonal access, or a six-figure road improvement obligation.
    3. Sewer & Water ProvidersConfirm service exists, capacity is available, and connection cost.Is sewer/water at the property line? What is the connection or hookup fee? Capacity available for my use? Any moratoriums or pending rate increases? Time to install if extension is required?Discovering after closing that "city utilities nearby" means $40k–$200k of off-site extension.
    4. Health DepartmentIf no city sewer/water: septic feasibility and well permitting.Existing approved site evaluation on file? What soils evaluation is required and who performs it? Setbacks from wells, surface water, and property lines? Well permit feasibility and depth in this area?A failed perc test that turns a "buildable" rural lot into a recreation-only hold.
    5. Power UtilityConfirm distance to power, transformer capacity, and extension cost.Distance to the nearest line of the phase I need? Is there capacity at the closest transformer? Written extension estimate? Easement requirements across neighboring parcels? Aid-to-construction or refund policy?Underwriting a "build-ready" parcel that actually needs $30k–$150k+ of power extension.

    1. Planning & Zoning

    This is the call that decides whether your plan is even legal on this parcel.

    Pull the zoning from the county or city GIS portal first so you arrive at the conversation knowing the district. Then call the planner and confirm:

    • Permitted uses by right vs. conditional uses requiring a hearing
    • Minimum lot size, frontage, setbacks, and lot coverage
    • Overlays that quietly change the rules (flood, hillside, airport, ag protection, wildland-urban interface)
    • Any open code enforcement, pending rezones, or moratoriums on the parcel

    If you want a deeper walk-through of this step, the How to Verify Zoning on Land guide covers the workflow end to end.

    2. Public Works / Road Department

    Access is one of the most common reasons a parcel quietly fails to be buildable. Public Works (or the county road department) controls the answers most listings get wrong.

    Ask whether the access road is public or private, whether it is maintained year-round, and whether there are any planned widenings, realignments, or impact fees that would attach to a future building permit. If access depends on a recorded easement, request that they confirm what is on file — and pair it with a title search.

    For more detail on the difference between *legal* access and *physical* access, see How to Tell if Land is Buildable.

    3. Sewer & Water Providers

    "City utilities nearby" is a marketing phrase. The provider will tell you whether service is actually available.

    Call the sewer district and the water provider separately — they are often different agencies. Ask whether service exists *to the property line*, what the current connection or hookup fee is, whether there is capacity available for your intended use, and whether any moratoriums or rate changes are pending.

    If the answer is "you'll need to extend," ask for a rough cost per linear foot and a typical timeline. Then verify those numbers against the How to Check Utilities on Vacant Land workflow before you let the number into your underwriting.

    4. Health Department

    If the parcel is not on city sewer or city water, the health department becomes the most important call on this list.

    Ask whether there is an existing approved site evaluation or recorded septic permit for the parcel. If not, ask what is required to get one, who can perform it, and the typical turnaround and fee. While you're on the call, confirm well permit feasibility in the immediate area — depth, water quality issues, and required setbacks from septic systems, surface water, and property lines.

    A failed perc test does not always kill a deal, but it almost always changes the price. The Septic Feasibility and Perc Tests guide explains how to underwrite the difference between a $10k conventional system and a $45k+ engineered alternative.

    5. Power Utility

    The final call is to the local electric provider. Power tends to be the *last* utility people verify and the most expensive to extend when it's missing.

    Give them the APN or address and ask:

    • How far is the nearest line of the phase I need (single-phase vs. three-phase)?
    • Is there capacity available at the nearest transformer?
    • Can I get a written extension estimate?
    • What easements would I need across neighboring parcels?
    • What is the aid-to-construction or refund policy if other customers tap in later?

    If the deal depends on a specific extension cost, get it in writing before you remove your contingencies.

    Why We Created a Contact Verification System

    Five phone calls sound simple. In practice, they generate a pile of names, phone numbers, voicemails, callbacks, dates, and "I'll have to check on that" promises that are almost impossible to keep straight across multiple deals.

    That is exactly the problem LandGauge is built to solve. Inside the platform you can:

    • Save each agency contact (name, phone, email, role, jurisdiction) to a parcel
    • Record the date each item was verified — so stale answers are obvious
    • Attach notes, written estimates, and screenshots to the parcel and to your shared Knowledge library
    • Reuse verified contacts across every future deal in the same county

    The goal isn't to replace the phone calls. It's to make sure the answers you paid for with your time actually compound across your next ten deals instead of getting lost in a notes app.

    What to do next

    Before you remove contingencies on your next parcel:

    1. Pull the parcel's zoning from the County GIS Finder.
    2. Walk through the Land Due Diligence Checklist for everything outside of these five calls.
    3. Confirm buildability against the How to Tell if Land is Buildable framework.
    4. Make the five calls above, in order, and log every answer with a date.

    An hour on the phone with the right agencies routinely surfaces issues that would otherwise cost $10,000–$80,000+ to discover after closing. That is the cheapest underwriting work you will ever do.

    Frequently asked questions

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