For a house extension in a Birmingham conservation area, start with the exact address and the council’s boundary map. An area name alone cannot tell you which controls apply. Birmingham lists Harborne Old Village and Moor Pool as separate conservation areas, for example, and specifically identifies Moor Pool as covered by an Article 4(2) Direction.
Check the Controls Before Drawing the Extension
Find the area on Birmingham City Council’s conservation pages. Read its designation map, any conservation area appraisal and the wording and map of any Article 4 Direction. A Direction can remove specified permitted development rights. Which work is affected depends on the Direction and its coverage, including which parts of the property face public space where the Direction makes that relevant.
Check whether the house is listed as well. Listed building consent can be a separate requirement, and in some areas an estate manager’s consent may also be needed. Birmingham’s guidance gives Bournville and the Calthorpe Estate as examples where this can arise. Keep the council and estate checks separate so you know whom to approach for each decision.
Give the Drawings Enough Context
A useful submission shows what will change and how the change sits beside the existing house. Start with these items and confirm the requirements for your application:
- Existing and proposed plans and elevations. Show the extension footprint, roof form, openings, ridge and eaves, and the junction with the original house.
- A site plan and relevant sections. Mark boundaries and neighbouring buildings. Include levels if a sloping garden or raised floor makes the extension appear taller.
- Photographs and contextual views. Record views from the street, a side passage or other public vantage points where they help explain visibility. Show which details of the original house will remain.
- Materials and heritage information. Identify the proposed facing material, roof covering and window details. Explain which characteristics of the house and wider area informed the design. Check whether the council requires a heritage statement or other supporting information.
Example: A Corner House in Bournville Village
Imagine a rear kitchen extension that can also be seen from a side road. The floor plan shows the layout, but it won’t explain how the new roof sits behind the existing house in that public view. Include a side elevation that shows the full house, the proposed roof and its height relative to the original eaves. Take a photograph from the side road and mark where it was taken. Check the Bournville Village Direction and design guide before finalising the roof and openings.
Keep the Planning and Construction Drawings Aligned
Use the agreed planning design as the basis for your technical drawings. If a drainage or structural detail changes the outside appearance, check whether the change needs further planning consideration before building it. A careful drawing register makes that conversation easier because everyone can identify the approved and proposed revisions.
If you have the conservation area name, property address and photos of the elevations, ask Ashbridge Design to scope the planning drawings.