London Land Commission

London Development Database

The London Development Database (LDD) is a collaborative project between the Mayor and the boroughs to track planning activity across London.

What is the LDD?

The LDD is the system used by the Mayor to monitor planning permissions and completions across London. It has been running since 2004.

The data is provided by the London boroughs; it is our responsibility to co-ordinate the project and provide the IT systems that makes it possible. The LDD is a valuable source of information on trends in planning and development, and is a vital source of information for the London Plan Annual Monitoring Report.

What does the LDD monitor?

The LDD contains details of all planning consents meeting criteria agreed with the London boroughs. The criteria are:

  • any new build residential units
  • any loss or gain of residential units through change of use or conversion of existing dwellings
  • creation of seven or more new bedrooms for use as either a hotel, a hostel, student housing or for residential care through new build or change of use
  • 1,000m2 or more of floor space changing from one use class to another or created through new build or extension for any other use
  • the loss or gain or change of use of open space.

Only planning permissions are recorded on the database. For details of applications being considered by your local planning authority, or for refusals, you must visit the relevant planning authority’s website.

Planning Permission In My Area and the LDD webmap

While most of the London Boroughs provide details of the planning applications they receive on their own websites, it can be difficult to get an overview across London or to view the permissions granted in a particular location where it is close to borough boundaries. We therefore provide a webmap showing the locations of the live and recently completed permissions across London. The LDD webmap includes housing totals at both Borough and LSOA level. Links to both of these maps are provided below.

Can I have access to the data?

An extract of LDD data containing all permissions currently recorded as 'not started' or 'under construction' and all completions since 1st April 2006 can be downloaded from the London Datastore. LDD data also contributes to several of the Key Performance Indicators and to the Housing Provision Monitor in the London Plan Annual Monitoring Report. Reports can be provided for academic or journalistic research, or can be purchased according to the charging schedule upon request to [email protected]. Conditions on the re-use of the data apply.

The data on the LDD is supplied by the relevant planning authority. They are responsible for the quality of the data and the copyright remains with them. The planning authorities are the definitive source of information on planning applications within their boundaries.