A loft conversion is one of the most cost-effective ways to add a bedroom and bathroom to your home. It typically adds 10-20% to your property value and avoids losing garden space.

Types of Loft Conversion

Velux/rooflight conversion is the simplest and cheapest (£20,000-30,000). No structural changes to the roof. Dormer conversion extends the roof vertically (£30,000-50,000). The most popular type. Hip-to-gable extends a hipped roof to a gable wall (£35,000-55,000). Mansard conversion replaces the entire roof slope (£45,000-70,000).

Building Regulations

All loft conversions need building regulations approval. Key requirements: fire-safe staircase with 30-minute fire doors, adequate structural support, and minimum headroom of 2.2m.

🛁 Adding an ensuite to your loft? Most loft conversions include a bathroom. Our wet room guide covers waterproofing for upper floors.

🚿 Adding an ensuite to your loft? Budget separately for the bathroom. Our wet room guide covers loft-friendly options.