Rear Dormer Loft Conversion
Transform your attic into a spacious, light-filled room with a rear dormer loft conversion.
At Heathrow Development, we specialise in building high-quality rear dormers that enhance both space and property value — all with minimal planning hassle.
What is a Rear Dormer Loft Conversion?
A rear dormer is a box-shaped extension that projects vertically from the sloping rear roof of your house. This flat-roofed addition creates significantly more headroom and floor space, transforming a cramped attic into a fully usable living area.
It’s one of the most popular types of loft conversions in the UK, especially for terraced and semi-detached homes.
Key Features
- Flat roof structure added to the rear slope of the roof
- Adds full-height ceiling space for a bedroom, ensuite, or home office
- Compatible with most traditional UK roof shapes (cut roofs)
- Often qualifies under Permitted Development (no planning permission needed)
FAQ: Rear Dormer Conversions
Do I need planning permission?
In most cases, no — rear dormers are allowed under permitted development, provided certain size and material conditions are met.
How much space can I expect?
Enough for a large double bedroom + ensuite in most properties, depending on roof span.
Can I add a Juliet balcony?
Yes — this is a popular feature in rear dormers. We’ll help ensure it’s compliant with regs.
