About the data

Where it comes from

Planning applications are published by UK local planning authorities. We collect medium and large applications via the PlanIt aggregator and link to each council's own record and documents. We don't copy or host plans and drawings.
Public-sector tenders and awards come from Contracts Finder and Find a Tender (Cabinet Office, Open Government Licence v3.0).
Company details come from Companies House (Open Government Licence).
Bidders lists come from our members, who choose whether their company name is shown.

Related applications (outline, reserved matters, discharge of conditions, amendments) are grouped into one project automatically. Grouping and stage are our best inference from the council records.
Values marked Est. are our estimates from the number of homes, floor area or MW capacity. They aren't published figures.
Roles marked medium or low confidence are inferred (for example, a contractor submitting a construction management plan). Please confirm before relying on them.
We only store organisations. Private individuals named on applications are not recorded.