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ARZConstruction Ltd
Loft Conversion Croydon
All ServicesCroydon & South London

Loft Conversion Croydon

Add a bedroom, en-suite or home office above your head — without moving house. Trusted loft conversion specialists serving Croydon and South London.

Free quote guaranteed within 24 hours

About This Service

A loft conversion is one of the most cost-effective ways to add space and value to your Croydon home. ARZ Construction has completed dormer, hip-to-gable and rooflight conversions across the borough and surrounding South London areas, working within permitted development rights wherever possible to keep your project moving fast.

What's Included

  • Dormer, hip-to-gable and Velux rooflight builds
  • Staircase design and joinery
  • En-suite bathrooms and storage joinery
  • Insulation and fire-safety compliance
  • Building regulations drawings and sign-off
  • Structural engineer coordination included
Loft Conversion Croydon by ARZ Construction in Croydon
What our clients say
"ARZ Construction built our rear extension and the result is stunning. From the first visit right through to handover, the team were professional, tidy and kept us informed every step of the way. The finish is exactly what we asked for. Would not hesitate to recommend."
Rear House Extension

Sarah Mitchell

Croydon, South London · March 2025

"We had a dormer loft conversion done and the whole process was smooth. Very competitive price and the quality of the work is excellent. Our project manager was on site regularly and always available on the phone. The new bedroom and en-suite look brilliant."
Loft Conversion

James Okafor

Bromley, South London · January 2025

Frequently Asked Questions

Do I need planning permission for a loft conversion in Croydon?
Most loft conversions fall within permitted development rights and do not need full planning permission. Exceptions include properties in conservation areas, listed buildings, or builds that exceed the permitted volume allowance. We assess your specific property on the initial visit.
How long does a loft conversion take in Croydon?
A standard dormer loft conversion typically takes 8–12 weeks from start on site. The programme depends on the size and complexity of the build — your written quotation will include a clear timeline.
How much does a loft conversion cost in Croydon?
Rooflight conversions typically start from around £25,000–£35,000. Dormer conversions range from £40,000–£65,000+ depending on size and specification. We provide itemised, fixed-price quotes with no hidden extras.
Will my loft conversion add value to my Croydon home?
A well-executed loft conversion typically adds 15–25% to a property's value in South London. An extra bedroom with en-suite is one of the highest-return home improvements available.
Can you build a loft conversion on a semi-detached house in Croydon?
Yes. Semi-detached properties are ideal for hip-to-gable or dormer conversions. We handle all Party Wall Agreement notices as part of our service.

Ready to Start Your Loft Conversion Croydon?

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