Extension plans, loft conversions and building regulations drawings for homes in Winchester and the villages around it — designed from our Winchester base.
Orange Key is an architectural design studio with a base in Winchester. We design house extensions, loft conversions, renovations and new homes across the city and the surrounding villages, and prepare the planning and building regulations drawings needed to get them approved and built.
Winchester has an unusually varied housing stock. Close to the centre, Victorian and Edwardian terraces in Fulflood, Hyde, St Cross and Highcliffe tend to suit rear and side-return extensions and dormer loft conversions. Further out, the interwar and post-war homes of Weeke, Harestock, Stanmore and Badger Farm often have the plot space for larger single- and two-storey extensions.
Most planning applications in the district are decided by Winchester City Council, but parts of the district fall within the South Downs National Park, where the National Park Authority is the planning authority instead. Much of the historic city sits within a conservation area, and the city has a high number of listed buildings, so it pays to establish early which rules apply to your property and whether listed building consent is needed alongside planning permission.
For most homeowners in Winchester, a project starts with house extension plans or loft conversion plans. Where a proposal needs consent we prepare the planning permission drawings and manage the application, and once it is approved we produce the building regulations drawings your builder and building control need.
We also design renovations, barn conversions and change-of-use projects, and prepare Land Registry lease plans for solicitors and landlords. If you are budgeting for a project, our house extension cost guide is a good place to start.
We work throughout the area around Winchester, including:
We also provide architectural design in Romsey and architectural design in Andover, and across the rest of Hampshire — see all the areas we cover.
We provide architectural design, house extension plans, loft conversion plans, planning permission drawings and building regulations drawings for homes in Winchester and the surrounding villages from our Winchester base.
Most applications are decided by Winchester City Council. Properties inside the South Downs National Park are decided by the South Downs National Park Authority. We check which authority applies to your property at the start of the project.
Often, yes, but permitted development rights are more limited in conservation areas, so many extensions that would otherwise be permitted need planning permission. Design and materials are looked at more closely, and we shape the proposal with that in mind.
Fees depend on the size and complexity of the project and on whether planning permission is needed. We give a fixed quote once we understand the property and what you want to achieve.
Tell us about your property and what you would like to achieve — we would be happy to talk it through.