Loft Conversions & Extensions in Hayes
Nested is a local design-and-build studio working on Victorian terraces, semi-detached homes and modern townhouses across Hayes. From dormers to mansards and rear extensions — fully managed, fixed price.
Lofts in Hayes
Dormer, mansard and hip-to-gable on Kent streets.
Extensions in Hayes
Rear, side-return and wrap-around — open up your living space.
Planning & Conservation
Local planning know-how for Hayes BR2.
Pricing tuned for Hayes homes.
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Hayes loft & extension FAQs
Common questions from homeowners in Hayes (BR2) about cost, planning, timelines and what to expect on site.
How much does a loft conversion cost in Hayes?+
Loft conversions in Hayes (BR2) typically range from £40,000 for a Velux conversion up to £90,000+ for a mansard or L-shape dormer. Pricing depends on roof structure, the period of the property and the specification of bathrooms and joinery. Most Hayes homeowners we work with invest between £55,000 and £75,000 for a fully finished dormer suite.
Do I need planning permission for a loft conversion in Hayes?+
Many lofts in Hayes fall under permitted development, but properties in conservation areas, flats, and mansard or front-facing dormer designs usually need a full planning application to Bromley Council. Nested handles drawings, planning submissions and party wall agreements with neighbours as part of every Hayes project.
Which loft conversion suits Hayes houses best?+
Hayes (BR2) has a mix of Victorian and Edwardian terraces, 1930s semis and modern townhouses. Terraces and semis usually suit a rear dormer or L-shape dormer, hipped semis benefit from hip-to-gable conversions, and larger period homes can take a full mansard. We confirm the right type during the free site visit.
How long does a loft or extension project take in Hayes?+
Most loft conversions in Hayes take 8–12 weeks on site, and rear extensions 10–16 weeks. Planning and building control approvals before the build typically add 8–12 weeks depending on whether the project is permitted development or full planning.
Will a loft conversion or extension add value to my Hayes home?+
Loft conversions and rear extensions in Hayes typically add 15–25% to property value because they create an additional bedroom, en-suite or open-plan kitchen — features in high demand across Kent. The exact uplift depends on finish quality and local comparables in BR2.
Do you cover the whole of Hayes and surrounding BR2 postcodes?+
Yes — we work across Hayes and the wider BR2 area, including neighbouring Kent streets. Our project managers are usually on a Hayes site within the same week of enquiry for a free measured survey and fixed-price quote.
Can I stay in my home during the build in Hayes?+
For most loft conversions in Hayes you can stay in the property throughout — scaffolding access means the existing ceiling stays intact until the very end. For rear extensions, the kitchen is usually out of action for 2–4 weeks; we'll plan a temporary kitchen with you before work starts.
Are you fully insured and accredited?+
Yes. Nested carries £5m public liability insurance, follows UK Building Regulations and uses fully qualified structural engineers and gas/electrical contractors for every Hayes project. Every build comes with a 10-year workmanship warranty.
Building in Hayes? Let's talk.
Free site visit, fixed-price quote, and full design and planning under one roof.