Zonescore.

Know what you
can build — instantly.

Zoning, explained in plain English. See what’s allowed, what’s not, and whether a property has real upside — in seconds.

    Based on official government data
    8 DC-metro jurisdictions
    Free — no account needed
    Live today in 8 DC-area jurisdictions, with more being added. See coverage →

    The answers that actually matter.

    Most zoning research takes hours of digging through government websites. Zonescore gives you the three things every real estate decision starts with.

    01

    What can be built here?

    Permitted uses, ADU rights, STR status, duplex and multifamily eligibility — color-coded and tappable.

    02

    What are the real limits?

    Height limits, FAR, minimum lot sizes, and coverage maximums pulled from the official zoning ordinance.

    03

    Does this property have upside?

    Stability and Opportunity scores show you how likely the zone is to hold — and what it could support.

    Filter every property by what its zoning allows.

    The free lookup answers “what can I build here?” Zoe answers “where can I build this?” — every district in a county that allows a use, with the section that says so.

    where can I put a restaurant in Prince William County
    10
    districts by right
    3,948 properties
    2
    districts where it depends
    196 properties
    The ordinance’s use is Restaurant. The columns are separate sets of districts, so their properties add up. Run it on Zoe ›
    Prince William County Code Chapter 32 (Zoning), committed corpus effective through 2025-09-09 · every district links to its own section
    01 Reverse search — every district that allows a use, counted and cited.
    02 Ownership lists — out-of-state owners, long-held parcels, filtered where the data exists.
    03 Positioning reports — what to do with a property, and what it is worth doing.

    Official government sources

    Data sourced directly from city and county zoning APIs, GIS layers, and parcel databases — not scraped aggregators.

    Dated to the source

    Every market records the exact ordinance edition and data date it was built from, and publishes them with the answers. A newer edition is re-extracted and re-verified before it ships.

    Always linked to source

    Every result links to the jurisdiction’s official zoning source so you can check it yourself before you act.

    Built for every side of the transaction.

    Decision advantage in real estate. Now available to everyone.

    01

    Buyers & Sellers

    Know what you — and your future neighbors — can build before you close. Understand how zoning affects resale value and long-term potential.

    02

    Investors & Developers

    Screen deals in seconds. Instantly surface ADU rights, STR eligibility, density potential, and comp-plan alignment before you spend time underwriting.

    03

    Real Estate Agents

    Embed Zonescore in any listing page. Deliver instant zoning clarity to your buyers — a signal that separates you from every other agent in the room.

    Zoning is one of the biggest drivers of property value.

    Most buyers, sellers, and investors make decisions without ever reading the zoning code. Zonescore closes that gap.

    Zoning and other land-use controls “play the dominant role in making housing expensive.”

    Glaeser & Gyourko — “The Impact of Zoning on Housing Affordability,” NBER WP 8835 (2002)

    “Zoning may be more important than either geography or transportation networks… in explaining where commercial and industrial activity are located.”

    Shertzer, Twinam & Walsh — “Zoning and the Economic Geography of Cities,” NBER WP 22658 (2016)
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    Seconds for a zoning answer by address, in every jurisdiction we cover. The same research used to take hours of digging through government websites.

    8

    DC-area jurisdictions live today, each built from official county and city records. More markets are on the way.

    Free

    Core zoning intelligence is always free. No account, no credit card, no paywall on the basics. Advanced analysis available via Zonescore Pro.