Maven Design & Build
Permitted Development Experts
Book a 30‑min consult (£200)

Chelmsford: loft dormer conversion with PD compliance

Case study image

The brief

Add a spacious bedroom and en-suite without full planning.

PD question answered

Is a rear dormer loft conversion permitted development?
Often yes, if dormer volume limits, height, and roofline constraints are respected.

Constraints

  • Maintain roof height and ridge line
  • Stay within volume allowances
  • Avoid overlooking issues

What we did

  • Calculated existing roof volume and remaining PD allowance
  • Positioned the dormer to minimize visual impact
  • Documented compliance to reduce risk

Outcome

A compliant loft conversion with minimal delay and strong resale documentation.