Before These Walls — find the history of your addressSourcesHow it worksStatusGet in touch

Every house has a paper trail.
Almost none of it is readable.

The maps, surveys, assessments and newspaper columns that collect around an address over a century are open records — scattered across a dozen archives, indexed inconsistently, and effectively unreachable for whoever lives there now. We assemble them into one free report about one building, with a source behind every line.

Any US address. Cook County, Illinois is indexed in depth; elsewhere we verify the address today and add records county by county.

What a report is built from

One archive at a time, each one wired in and verified before it ships.

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1,863,549

Cook County parcels indexed

Every Cook County parcel keyed to its PIN and refreshed monthly, so a typed address lands on the right building even with the unit missing or a digit wrong. Everywhere else in the United States resolves through the Census geocoder.

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Year built and construction

Where the county publishes it: the year the house went up, bedrooms, materials, roof, basement, garage in Cook County; year built, alterations, floors and landmark status in New York City.

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Flood zone, elevation, disasters

FEMA's flood map at the point, the ground's height above sea level, every federal disaster declared for the county, and the strongest earthquakes within 100 km.

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Fire insurance maps and photographs

Sanborn maps drawn block by block for insurers, and catalogued photographs of the town, from the Library of Congress.

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Landmarks within a walk

National Register listings within a mile and a half, and every place with a Wikipedia article within a few hundred metres.

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The street in the papers

Digitised newspapers to 1963 that name the street, and recent reporting that names the block.

Building

Deeds and permits

Recorded transfers and building permits are held by each county and municipality, and arrive one jurisdiction at a time.

How it works

Three steps, and a source ID behind every line of the result.

01

Give an address

Typed the way people actually type it — abbreviations, missing unit, a transposed digit. It resolves to a parcel anyway.

02

We pull the record

Each archive is queried on demand and the raw response is kept, so a report can always be traced back to what the source said that day.

03

You get one document

A single report about a single building, every statement carrying the record it came from.

Principle

Buildings, not people

A report describes a structure and what the public record says happened to it. Names appear only where public deed records put them. Nothing is inferred and nothing is embellished.

Status

Free, immediate, public

Type an address and read the report now; there is nothing to buy and nothing to sign up for. Sources are queried live and every section says where it came from, or that it could not be reached. Something wrong? Ask for a correction.