Central London loft conversions — from Notting Hill to Knightsbridge, Chelsea to Mayfair — represent some of the most complex, most rewarding, and most visually spectacular projects we undertake.
Central London property is in a class of its own. The Georgian and Victorian townhouses of Kensington, Chelsea, Notting Hill and Mayfair are architecturally significant buildings in the world’s most sought-after postcodes. Almost all Central London residential streets are within conservation areas — planning applications here require exceptional design quality and experienced handling.
Prime Loft provides professional loft conversions in Central London and surrounding areas. We carry out free, no-obligation surveys throughout the area and provide fully itemised fixed-price quotations. Our in-house architects, structural engineers, and project managers handle every aspect of your conversion from first survey to final handover.
The most popular type across Central London. A rear-facing box dormer creates full-height rooms with maximum floor space.
Learn More →Maximum space for period terraces in Central London — near-vertical walls, flat roof, full headroom throughout.
Learn More →The ideal choice for semi-detached and detached properties throughout Central London.
Learn More →Two dormers in one project — delivering two bedrooms and a bathroom for Victorian terraces in Central London with rear outriggers.
Learn More →The most cost-effective option for Central London properties with good existing headroom.
Learn More →Single-storey rear extensions across Central London — often combined with loft conversions.
Learn More →Understanding the planning rules specific to your area in Central London is essential before starting a loft conversion project.
Most houses in Central London retain Permitted Development rights, allowing a rear dormer of up to 40m³ (terraced) or 50m³ (detached/semi) without a full planning application.
Many streets in Central London are within designated conservation areas where any visible roof alteration requires a full planning application.
No part of a PD conversion can exceed the height of the existing ridge. Our surveyors calculate your specific allowance at the free visit.
All loft conversions in Central London require Building Regulations approval regardless of planning status. We manage this as part of your fixed price.
Prime Loft is active throughout all of Central London. If you can see your street on the map below, we’ve almost certainly worked nearby.
In Central London, Prime Loft’s fixed-price loft conversions start from £55,000. Typical Central London projects range from £55,000 to £90,000+ for larger or more complex conversions. Contact us for a free, fixed-price survey for your specific property.
Most loft conversions in Central London qualify under Permitted Development and don’t need a full planning application. Conservation area properties and those with Article 4 restrictions do require consent. Our planning team advises specifically at the free survey.
Most loft conversions in Central London take 6–10 weeks on site, with a preceding design and planning phase of 6–10 weeks. Your dedicated project manager provides a full programme before work begins.
In Central London, a Prime Loft conversion typically adds £90,000 – £1.5m+ depending on the conversion type and your specific location. The best returns come from adding a master bedroom with en-suite.
The most popular type in Central London is Mansard or carefully designed dormer. Our surveyor assesses your specific property and recommends the most appropriate option at the free survey.
No obligation. A clear, fixed price for your Central London loft conversion.
Book Free Survey or call 0208 123 4567Select any area below to see specific pricing, planning information and more.
No obligation. No pressure. A clear, honest picture of what’s possible in your home — and exactly what it will cost.