Transparent Costs
Indicative pricing across all of our services. Every project is unique — contact us for a precise, no-obligation quotation.
Fees & Costs
The figures below are indicative ranges based on typical projects. Your actual costs will depend on specification, complexity, location, and site conditions. We always provide a bespoke, itemised quotation before any work begins.
| Type of Extension | Sketch | Pre-Approval Design | Planning | Building Regulations | Total Costs |
|---|---|---|---|---|---|
| Micro | £500 | £600 | £1,500 | £1,500 | £3,000 |
| Small | £700 | £1,200 | £750 | £2,000 | £4,650 |
| Medium | £1,050 | £1,500 | £1,050 | £2,950 | £6,550 |
| Large | £2,300 | £2,100 | £1,500 – £2,000 | £3,000 – £6,000 | £11,150 * |
| New Build / Complex | Bespoke | Bespoke | Bespoke | Bespoke | Bespoke |
| Commercial | Bespoke | Bespoke | Bespoke | Bespoke | Bespoke |
* Large projects — total based on lower end of planning and building regulations cost range.
| Service | Cost |
|---|---|
| Extensions — Build Costs | |
|
Single Storey Extension Kitchen, dining, living or utility — standard specification |
Bespoke Cost |
|
Single Storey Extension — Premium High specification, bi-fold glazing, lantern or vaulted ceiling |
Bespoke Cost |
|
Double Storey Extension Ground & first floor addition, standard specification |
Bespoke Cost |
|
Wraparound / L-Shape Extension Side return plus rear — price per m² varies with complexity |
Bespoke Cost |
| Loft Conversions — Build Costs | |
|
Velux / Roof Light Conversion No external changes — internal conversion only |
Bespoke Cost |
|
Dormer Loft Conversion Rear dormer providing full-height room, en-suite option |
Bespoke Cost |
|
Hip-to-Gable Conversion Side elevation raised to gable, maximising internal space |
Bespoke Cost |
|
Mansard Conversion Full mansard reconstruction — maximum headroom & space |
Bespoke Cost |
| Barn Conversions — Build Costs | |
|
Agricultural to Residential (Class Q) Structural insertion, insulation, windows, services — shell only |
Bespoke Cost |
|
Full Barn Conversion — Fitted Out Complete fit-out to handover standard, includes kitchens & bathrooms |
Bespoke Cost |
|
Listed / Heritage Barn Conversion Specialist materials & methods — price on application |
Bespoke Cost |
| AirBnB Setup Service | |
|
AirBnB Annexe / Studio Setup Design, build & full furnishing for a guest-ready studio |
Bespoke Cost |
|
AirBnB Cottage / Outbuilding Conversion Full conversion with planning, fit-out & interior styling |
Bespoke Cost |
| Commercial Projects | |
|
Office Fit-Out & Refurbishment Design & build — category B specification |
Bespoke Cost |
|
Retail / Hospitality Fit-Out Bespoke joinery, branding integration, compliant layout |
Bespoke Cost |
|
New Commercial Build Full design & build — price on application |
Bespoke Cost |
| Design & Build Service | |
|
Integrated Design & Build Single contract covering design, planning, build & handover |
Bespoke Cost |
Please note: All fees and build costs are bespoke to each project. A detailed, itemised quotation will be provided following your free initial consultation — with no obligation to proceed.