Home / Site analysis / Urban growth analysis
Urban growth analysis

Urban growth map, 1975–2020

Every cell of about 90 m around your site, coloured by the period in which it became built-up, from 1975 to 2020. It shows the historic core, the waves of expansion and the recent edge in one drawing, from the European Commission Global Human Settlement Layer.

1975–2020 · ten epochsGHSL, EC JRC~90 m cellsSVG · PDF · PNG
Urban growth map showing when each part of the area became built-up, 1975 to 2020, generated in MapToNap
What you can make

The drawings, and what each one shows

Urban growth (Pro)

When each cell around the site became built-up, across ten epochs from 1975 to 2020 in five-year steps.

Open, citable data

GHS-BUILT-S R2023A from the European Commission Joint Research Centre (CC BY 4.0): the built-up surface in every cell, worldwide.

Read only what is needed

Only the tiles that cover your frame are read from each epoch, in the browser.

Pair it with the fabric

Put it next to the figure-ground and the fabric by footprint size: the periods of growth usually match changes in grain.

Examples

Straight out of MapToNap

Untouched exports from real sites. Free drawings carry a watermark; Pro and Max drawings are marked.

Map data © OpenStreetMap contributors, available under the Open Database Licence. The images are MapToNap output.

Guide

How to read an urban growth map

  1. Find the core. The cells built before 1975 are usually the historic centre and the early suburbs; everything else grew around them.
  2. Read the direction. Growth often follows roads, railways and valleys. The direction of the newest cells shows where the city is still expanding.
  3. Compare with the fabric. Areas built in the same period tend to share a grain and a block size. A sudden change in the figure-ground often matches a change of epoch.
  4. Place your site in time. A site on the recent edge, inside an old core or in a gap that was never built tells a different story and asks for a different project.
  5. Remember the resolution. Cells of about 90 m show the growth of districts, not the age of a single building.
Frequently asked questions

Before you start

Where does the urban growth data come from?

From GHS-BUILT-S R2023A, part of the Global Human Settlement Layer of the European Commission Joint Research Centre, released under CC BY 4.0. It gives the built-up surface of every cell of about 90 m, worldwide, for ten epochs from 1975 to 2020.

Does it show the age of each building?

No. It shows when each cell of about 90 m became built-up, which describes the growth of districts. For the age of individual buildings, use local historical maps or cadastral records.

Does it work outside Europe?

Yes. The dataset is global, so the drawing works in any city.

Is it free?

You can try MapToNap free: four 2D drawings (roads, land use, green and water, urban fabric) and one 3D drawing, with a watermark and no sign-up. Without the watermark and with all 68 analyses there are one-time passes: Pro €7.99 or Max €12.99 for 30 days, or a year of Max for €49. Nothing renews automatically.

Do I need to install anything? Does it work on a phone?

No installation and no setup. MapToNap runs in the browser on any computer, tablet or phone, iPhone or Android: open maptonap.com/app, type an address and press Generate. 3D drawings and simulations run smoothest on a computer.

Related

Keep going