
L‑Shaped Dormer Loft Conversion
Maximise space with a rear dormer that turns the corner to form an L‑shape.
This design links a main rear dormer with a side dormer over an existing rear extension, creating a large, flexible loft footprint.
What is an L‑Shaped Dormer?
Two dormers connect at right angles across the rear and side roof slopes. It’s ideal for properties with a rear outrigger, enabling multi‑room layouts.
Key Features
- Two connected dormers forming an L‑shape for maximum floor area
- Ideal for properties with a rear outrigger or extended kitchen
- Enables multi‑room layouts (e.g., two bedrooms + bathroom)
- Requires careful planning and structural design
FAQ: L‑Shaped Dormers
Do I need planning permission?
Planning rules vary by area and size; many L‑shaped dormers need permission. We manage all applications and drawings.
How long does an L‑Shaped dormer take?
Allow 8–12 weeks depending on scope, structure and internal fit‑out.
What layouts are typical?
Common layouts include two bedrooms with a shared bathroom or a master suite + study.