Extensions and loft conversions add space and value, but they rely on sound structural design to be safe and to gain Building Control approval. Kingston Surveyors arranges a chartered structural engineer to design the beams, floors, foundations and roof structure for your project and to produce the calculations and drawings your builder and Building Control need. We cover London, Birmingham, Manchester and nationwide.
A single or double-storey extension needs foundations sized for the ground conditions, beams over new openings, and floor and roof structures that tie safely into the existing building. Our engineer designs each element, coordinates with your architect’s plans and provides the calculations that demonstrate the extension is structurally sound.
Loft conversions introduce new floor loads and often remove or alter roof timbers, so they require careful design of new floor joists, steel beams and any dormer structure, along with checks on the existing walls and foundations. We provide the structural drawings and calculations needed for approval and for a safe, well-built conversion.
We match your project to a chartered structural engineer experienced in domestic extensions and loft conversions, delivering accurate designs and quick responses to queries. Contact Kingston Surveyors today for a free, no-obligation quote on structural design for your extension or loft conversion.
You may also need: structural calculations, load-bearing wall removal and party walls in loft conversions.
Planning drawings show what an extension or loft conversion will look like; structural design makes it stand up. The chartered engineers we arrange design the steelwork, floor structures, roof alterations and foundations, coordinate with your architect, and deliver calculations ready for Building Control — avoiding the mid-build redesigns that blow budgets.
Loft conversions almost always need new floor joists sized independently of the ceiling below, steel beams at ridge and floor level, and careful load paths down to foundations. Rear extensions turn on foundation design and removing the rear wall — usually with party wall implications when digging near a neighbour. Fixed-fee design packages; see also structural calculations or call 0204 579 8270.
