Project Type
Dormer Loft Conversion
Duration
12 weeks
Recorded Value
£62,000
The duration and value describe this completed project. Your quote will reflect the property, agreed scope and current costs.
The brief and property
The Edwardian semi sat within the Hampstead Conservation Area but not within the Article 4 Direction zone, meaning a rear dormer could in principle proceed under Permitted Development — however, the size required exceeded standard PD limits, and the street's Character Appraisal identified the roofline as a defining feature. Camden's planning officers required a full application with design justification.
Work completed
Our architect produced a Heritage Impact Assessment demonstrating that a rear dormer set well within the roofline, zinc-clad and with a shallow-pitched roof, would have no adverse impact on the character of the conservation area. The assessment referenced comparable approved dormers in the area. Planning was approved at officer level in 6 weeks.
Results
- Camden planning approval at officer level in 6 weeks
- Heritage Impact Assessment accepted first time
- 28m² of new loft space created
- Double bedroom with Velux rooflights and garden views
- En-suite shower room with Porcelanosa tiles and thermostatic shower
- New staircase with oak treads and painted balustrade
- Building Regulations completion certificate issued
Key Features
- Camden conservation area planning consent
- Rear dormer — zinc cladding, shallow pitch
- Velux Conservation rooflights to rear slope
- En-suite with Porcelanosa tiling and thermostatic shower
- Bespoke oak and painted staircase
- Full insulation upgrade to Part L standards
Specification
| Item | Specification |
|---|---|
| Dormer cladding | RHEINZINK standing-seam zinc, pre-weathered, to dormer cheeks and roof |
| Rooflights | Velux Conservation GGL triple-glazed, centre-pivot, aluminium-capped |
| En-suite tiles | Porcelanosa Marmol Calacatta large-format, 600×900mm, with electric UFH mat |
| Shower | Hansgrohe Croma Select thermostatic shower system, brushed nickel |
| Staircase | Engineered oak treads on softwood carriage, painted MDF balustrade |
| Insulation | Rockwool between rafters with Celotex PIR board, achieving U-value 0.18 |
Interested in a similar project?
Submit a private brief with photos for a similar scope. Fit and capacity are confirmed case by case for in-house delivery.