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.
Assess how an addition meets the actual condition of existing material.
Which trade-off matters?
Full renewal creates a uniform appearance, while targeted repair preserves more existing material. Compare both using a sample area and assess technical compatibility too.
What the drawing needs to explain
Mark intact, damaged and unassessed areas on photographs. Add the old-to-new junction detail with proposed materials and treatment.
Decide this before construction
Start with a survey and trial repair, reviewing the result before treating the whole surface. Protect retained elements while removing adjoining material.
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.