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.
Include an addition in the room book for the entire home from the start.
Which trade-off matters?
A continuous material palette brings calm, but rooms serve different uses. Decide which qualities should remain consistent and where moisture, sound or intensive use calls for a different solution.
What the drawing needs to explain
Use the same room and detail numbers on drawings and in the room book. Identify the approved revision for each item and which supplier still needs to provide information.
Decide this before construction
Prioritise decisions affecting several rooms before individual product choices. Then use room-by-room decision dates linked to the work that would otherwise wait.
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.