Overview

Our Strategic Housing Land Availability Assessment (SHLAA) helps us to understand the capacity of the borough’s existing urban areas to accommodate new housing development.

The main role of a SHLAA is to:

  • identify sites with potential to provide new homes
  • assess the number of new homes that might be built
  • estimate when they are likely to be built

If a site is included in the assessment it does not necessarily mean it will be successful in getting planning permission for housing or be allocated as a housing site.

Read the 2025 Stockport SHLAA update to:

  • learn how this work was undertaken
  • see which sites have been assessed as developable
  • understand the impact that this evidence work has on the emerging Local Plan

Housing land supply data

The SHLAA is one part of Stockport’s housing land supply. The other part is comprised of permissioned sites.

These supply sites can be viewed through our online map. You can also access the data in .csv and GIS formats at data.gov.uk.

The land supply data is presented as a whole, and includes:

  • sites assessed as 'developable' in the SHLAA 2025; and
  • sites with planning permission for housing as of 31 March 2025

Some permissioned sites have already been partly built, so the capacity shown for these sites is the remaining capacity on the site, not that originally permissioned.

There are also sites with a net capacity of zero or a negative figure. This is because they are sites which either involve a replacement home or where the development will involve a net loss of housing. For example, if a development involves the demolition of 6 apartments and the building of one house, this would be a net capacity of minus 5. We monitor these permissions to make sure we have a full picture of housing supply.

This data also categorises the sites by land type, showing whether sites are brownfield, greenfield, or mixed sites.

What is not included are the allowances made in the SHLAA for small sites, district centres, and the town centre which will almost exclusively be on previously developed land.