About Civexa

The fastest way to answer one expensive question

Every developer, investor, and broker who looks at a piece of land asks the same thing first: what can I build on this lot? Until now, answering it meant a call to an architect, a day of digging through municipal code, or an expensive feasibility study — before you even knew whether the deal was worth pursuing.

Civexa answers that question in under a minute. Enter any Seattle address, and we pull the parcel, zoning, environmental constraints, and transit data, then apply the adopted municipal code — whether the lot is residential, mixed-use, commercial, downtown, or industrial — to estimate what you can build and whether the numbers work.

Built on real code, not guesswork

What you can actually build on a specific lot comes down to that zone's floor-area ratio, height limits, lot coverage, setbacks, allowed uses, and critical-area overlays. Civexa reads the actual adopted code — chapter and table — for each zone we support, and applies it parcel by parcel. For the City of Seattle that means the full Land Use Code: the residential ladder, Neighborhood Commercial and Commercial, Seattle Mixed, Downtown, and the Industrial and Maritime zones — each verified against the adopted text, not a summary of it.

Washington's HB 1110 is part of that picture — it legalized middle housing (duplexes, triplexes, fourplexes, townhouses, and cottage housing) in neighborhoods that were once single-family only — but it's one rule among many. Every figure Civexa shows traces back to a rule or a measurement, and wears a source tag: verified from official GIS, derived from code, or a clearly labeled estimate.

Who we serve

Developers, land investors, real estate brokers, architects, and owners exploring redevelopment — anyone who needs a fast, credible first read on a lot before committing time or money, whether they're weighing a middle-housing infill, a mixed-use corner, or an industrial site.

Where we're headed

We started with the City of Seattle — now modeled across every zone, code-exact — and are expanding across the Puget Sound region: King, Snohomish, and Pierce counties, city by city. As each jurisdiction's adopted code is verified, Civexa aims to be the most current, most accurate source for what you can build, anywhere in the region.