House Extensions
Planning-ready, family focused
Extensions delivered with clear timelines and tidy sites.
From single-storey rear extensions to full wraparounds, we manage every stage from planning support through to the final handover.
Planning supportBuilding control readyFixed-scope quotes
Typical extension types
- Single-storey rear
- Double storey extension
- Wraparound extension
- Kitchen & family rooms
- Open-plan refurbishments
Typical timelines
- Single-storey: 10–14 weeks
- Double storey extension: 12–20 weeks
- Wraparound: 18-24 weeks
Plan with confidence.
We align approvals, budgets, and milestones upfront so your extension stays on track.
See planning support ->Our process
How we deliver extensions
We keep everything organised from the first site visit to the final sign-off, so you stay confident throughout the build.
Site visit & concept
- Measure up and confirm access.
- Discuss layouts, finishes, and budget.
- Identify planning or building control needs.
Planning & approvals
- Coordinate drawings and engineering input.
- Support planning applications where required.
- Agree specifications and schedules in writing.
Construction & delivery
- Organised site setup and safety controls.
- Weekly updates and milestone check-ins.
- Trades coordinated to keep the programme on track.
Handover & sign-off
- Final inspection and snag resolution.
- Building control documentation provided.
- Clean handover with warranty details.
Planning support
Planning & building control
We guide you through approvals, ensuring your extension meets local requirements and building regulations.
Planning permission
We advise on permitted development or full applications and help coordinate submissions where required.
Structural design
RSJ sizing, foundations, and load calculations completed by qualified professionals.
Building control
Inspections and sign-off managed throughout the build so your documentation is complete.
Timeline guidance
Typical extension timelines
Indicative timeframes based on standard extension scopes.
Single-storey rear
10–14 weeks from start on site.
Double storey extension
12–20 weeks including internal finishes.
Wraparound
18-24 weeks depending on complexity.
Timelines vary based on design scope, approvals, and availability.
Budget guidance
Typical extension costs
Ballpark ranges to support early planning.
Single-storey rear
£25k–£60k depending on size and finishes.
Double storey extension
£50k–£100k with open-plan reconfiguration.
Wraparound
£75k–£150k for larger family spaces.
Costs depend on structural work, access, specification, and planning requirements. We provide a detailed quote after survey.
FAQs
House extension questions answered
Quick answers to common extension queries.
Will I need planning permission?
Some extensions fall under permitted development. We review your scope and advise on the correct route.
Do you manage building control?
Yes. We coordinate inspections and make sure all sign-offs are completed before handover.
Can we live in the property?
In most cases, yes. We plan the work to minimise disruption and keep the site tidy.
How do payments work?
We agree staged payments linked to milestones so expectations and budgets stay clear.
Get in touch
Request an extension quote
Share your plans and timeline. We will confirm availability and outline the next steps.