A practical guide comparing the main loft conversion types in Surrey and SW London, including costs, planning requirements and which options add the most value.
Choosing the Right Loft Conversion Type
Loft conversions are one of the most effective ways to add space and value, but the right solution depends on your roof shape, planning constraints and budget. In Surrey and SW London, certain loft types are far more common due to property styles and local planning policies.
- Roof shape determines viable conversion options
- Planning complexity varies by loft type
- Value uplift differs significantly between designs
| Loft Conversion Types Compared |
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Dormer: Most common, good space gain, often permitted development Hip-to-gable: Ideal for semi-detached homes, increases roof volume Mansard: Maximum space, usually needs planning permission Velux (rooflight): Lowest cost, minimal external change |
Dormer and hip-to-gable conversions are particularly popular in Surrey suburbs, while mansard lofts are more common in London locations with higher density housing.
Explore detailed layouts on our dormer loft conversion page or review neighbour considerations via our party wall support service.
Loft Conversion FAQs
Key questions homeowners ask before converting their loft.
Which loft conversion adds the most value?
Mansard and large dormer lofts typically add the most value due to increased floor area.
Do all loft conversions need planning permission?
No. Many dormer and Velux conversions fall under permitted development.
Are Velux loft conversions worth it?
Yes, for lower budgets and homes with good existing roof height.
Which homes suit hip-to-gable lofts?
Semi-detached and end-terrace houses benefit most from hip-to-gable conversions.
Are mansard lofts expensive?
Yes. They cost more due to structural changes but maximise space.
Do loft conversions require party wall agreements?
Often yes, especially where walls are shared with neighbouring properties.
