What this work involves
Start with the space you need in daily life. Place furniture and walking routes on the plan before deciding the external dimensions. A deeper extension is not automatically better: daylight in the existing part deserves equal attention.
- Dimensions and position of the extension
- Existing rear wall and structural changes
- Foundation, floor build-up and connection to the house
- Glazing, rooflights, shading and ventilation
- Kitchen, heating and electrical layout
Use the following design considerations when coordinating this service with a wider project. Agree which parts apply to your request.
Let additional space simplify circulation through the existing living room.
Which trade-off matters?
A kitchen island can be a pleasant meeting place but also an obstacle between the entrance and garden. Compare it with a wall arrangement before designing kitchen and living areas separately.
What the drawing needs to explain
Put the kitchen, dining table, storage and garden door on the same drawing. Mark the main route without moving chairs to reveal how much clear space actually remains.
Decide this before construction
Agree furniture positions before finalising flooring, connection points and doors. Then decide which daily route remains available during construction.
Cost factors for this service
Size, foundation method, access, structural work and finishes determine the budget. Ask for drawings, installations, demolition and garden reinstatement to be identified separately.
Bring this to the discussion
A floor plan, photographs, approximate dimensions and a short list of requirements.
Questions about the work
Can I stay at home during the extension?
It depends on the work. Discuss when the existing wall is opened, how the house is protected from dust and rain, and which facilities become unavailable.
The design situations here illustrate choices; they are not completed projects or a diagnosis of your property.

