Housing decline evidence

Explore approved before-and-after Street View comparisons showing housing change around the world.

32 approved comparisons.

Explore the dated views below. These comparisons document submitted locations, rather than the condition of an entire city or country.

Approved evidence

World Decline MapStreet change, documented worldwide

World Decline Map

See how the world's streets have changed.

Street View before and after comparisons from real places worldwide. Explore the map, judge each dated change, and add your own.

How it works

Tap Random to discover a place. Compare the years and rate the change.

Live map statistics

Approved evidence
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Member profile

Decline Passport

Evidence, ratings, countries, missions, and public contributor standing.

Contributor status Your decline record

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How it works About

Guide

How it works

Use Google Street View links or embeds to document before-and-after street-level change.

Submit evidence

  1. Open Google Maps Street View and choose the earlier year.
  2. Use Share, copy link, or embed map. Embeds are preferred.
  3. Repeat for the later year from the same place.
  4. Paste both links, choose a category, add the years, and send it for moderation.

Suggest a place

Suggest a location when you do not have both dated Street View links.

Add a Google Maps link, a short note, and the location becomes an open lead for contributors.

Rating decline

Choose No decline, Mild decline, Clear decline or Severe decline. Rate only the visible change supported by the two dated views.

Top rated pins need at least three ratings. Community ratings are opinions about the submitted evidence, not an official measure of an area.

Signed-in ratings are tied to your account. Anonymous ratings use a local browser identity.

Moderation

Submissions wait for review before appearing on the public map. Admins can correct labels, years, categories, and coordinates.