What this work involves
An extra storey changes more than the roof. The existing structure, staircase position, escape arrangements and installation routes need to be considered together. Establish what the building can support before settling the design.
- Existing structure and foundation assessment
- Stair opening and usable room layout
- Roof shape and neighbouring buildings
- Facade materials, windows and insulation
- Lifting, scaffolding and temporary weather protection
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
Include design, investigations, structural work, the new envelope and internal finishes. Additional strengthening can change the budget.
Bring this to the discussion
Existing plans, photographs of roof and facades, intended rooms and information about earlier alterations.
Questions about the work
Is every flat roof suitable for another floor?
No. The building, its foundation and the rules for the property are decisive. Structural assessment and a location-specific permit check belong in the preparation.
The design situations here illustrate choices; they are not completed projects or a diagnosis of your property.