1. Say what you’re planning
2. Upload and see the findings

Try it with your own drawings

As an applicant sees it, in our made-up example council. Upload a location plan, an elevation or a certificate and see within a minute what a validation officer would ask for.

What are you planning?

Extend or change my houseAn extension, loft or dormer, porch, garden room, garage, fence, wall or drivewayBuild a new home, make flats, or change how a building is usedFor example a house into flats, a shop into a dental surgery, a new house in the gardenWork on a listed buildingInside or out: walls, windows, fireplaces, extensionsCut back or fell a treeA tree with a Tree Preservation Order, or in a conservation areaPut up a sign or advertA shop sign, fascia, projecting sign, illuminated sign, hoardingConfirm that something doesn't need permissionA lawful development certificate: for work you plan, or for something already built or in use

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