What is a Single Dormer Mansard Loft Conversion?

• Dormer Element: A box-like structure that projects from the existing roof, typically at the rear, to create additional headspace and floor area.
• Mansard Element: A steeply sloped roof with dormer windows, providing a more spacious and usable loft area.

This combination allows for a significant increase in usable space without the need for a full roof replacement.

Cost Considerations

The cost of a single dormer mansard loft conversion varies based on factors such as property size, location, and design complexity. On average, prices range from £45,000 to £75,000. Additional costs may include architectural fees, planning permissions, and structural assessments.

Planning Permission & Regulations

Given the structural changes involved, planning permission is typically required for a mansard loft conversion. It’s essential to consult with your local planning authority to ensure compliance with building regulations and zoning laws.