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Loft conversions, house extensions, renovations, basements and new builds across London and Hertfordshire.

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Loft conversions, house extensions, renovations, basements and new builds across London and Hertfordshire.

Services

Loft conversions, house extensions, renovations, basements and new builds across London and Hertfordshire.

Services

Loft conversions, house extensions, renovations, basements and new builds across London and Hertfordshire.

Services

Call 020 8037 7332 or get an instant estimate online.

Loft Conversions Golders Green NW11 2026: Complete Guide to Costs, Planning and Types

Writer: LCCL Construction
LCCL Construction
Jun 24
3 min read

Updated: 7 hours ago

Golders Green is one of North London's most vibrant and sought-after residential areas, situated in the NW11 postcode between Hampstead, Finchley and Hendon. Known for its excellent transport links via the Northern line, outstanding schools, strong community character and wide mix of large Edwardian and inter-war semi-detached and terraced houses, Golders Green has consistently strong property values and high demand for additional bedroom accommodation. LCCL Construction is based in nearby Finchley N3 and delivers loft conversions across Golders Green and all surrounding NW11 areas as part of our complete design and build service.


Loft conversions Golders Green NW11 — LCCL Construction
LCCL Construction — specialist loft conversions in Golders Green NW11 and North London

Loft Conversions Golders Green: Best Types for Local Properties


The large Edwardian and inter-war semi-detached houses that are common across Golders Green NW11 are ideally suited to hip to gable loft conversions— replacing the sloping hip end of the roof with a vertical gable wall to create a large full-height loft room. Victorian terraced houses suit dormer loft conversions and L-shaped dormer conversions for properties with a back addition.


How Much Do Loft Conversions Cost in Golders Green in 2026?


Velux: £32,400 – £50,400 inc. VAT (£27,000 – £42,000 + VAT).


Dormer: £56,400 – £80,400 inc. VAT (£47,000 – £67,000 + VAT).


L-shaped dormer: £58,800 – £98,400 inc. VAT (£49,000 – £82,000 + VAT).


Hip to gable: £60,000 – £114,000 inc. VAT (£50,000 – £95,000 + VAT).


Mansard: £76,800 – £148,800 inc. VAT (£64,000 – £124,000 + VAT).


All include full design and build. See our full loft conversion cost guide.


Planning Permission for Loft Conversions in Golders Green


Most loft conversions in Golders Green NW11 fall within permitted development rights and do not require planning permission. Temple Fortune and parts of Hampstead Garden Suburb — which borders NW11 — have conservation area designations where planning permission is required. LCCL Construction checks all planning requirements. See our guide to loft conversion planning permission in London.


How Much Value Does a Loft Conversion Add in Golders Green?


A loft conversion costing £66,000 – £87,600 inc. VAT (£55,000 – £73,000 + VAT) typically adds £88,000 to £155,000 to the value of a Golders Green property — a return of 150 to 240 per cent. See our guide on how much value a loft conversion adds in London.


Areas Around Golders Green We Cover


LCCL Construction covers Golders Green NW11, Temple Fortune NW11, Hampstead Garden Suburb N2 NW11, East Finchley N2, Finchley N3 N12, Hendon NW4, Brent Cross NW4, Cricklewood NW2, Child's Hill NW2, West Hampstead NW6, Hampstead NW3 and all surrounding North London postcodes.


Can it be done under permitted development?

Most London loft conversions on houses need no planning application. A rear dormer, a hip-to-gable or an L-shaped dormer is permitted development within 40 m³ on a terrace and 50 m³ on a semi or detached house, provided the property is a house (not a flat) and not in a conservation area or on an Article 4 street, and we apply for a Lawful Development Certificate on every one so the position is confirmed in writing before work starts. Our fixed-price permitted development lofts start from £32,400 inc. VAT (£27,000 + VAT) for a Velux loft and £56,400 inc. VAT (£47,000 + VAT) for a rear dormer, at economy specification, design and build inclusive. See our permitted development projects page for every product with its from-price and the checks we run before we confirm a project qualifies. Not sure whether your project needs a planning application? Check if you need planning permission

Frequently Asked Questions About Loft Conversions in Golders Green


How much does a loft conversion cost in Golders Green?


Costs range from £32,400 inc. VAT (£27,000 + VAT) for a Velux to £148,800 inc. VAT (£124,000 + VAT) for a mansard. A hip to gable with en-suite typically costs £60,000 – £114,000 inc. VAT (£50,000 – £95,000 + VAT).


To get a free consultation call LCCL Construction on 020 8037 7332 or get an instant quote online.

Aleksandar Madari (Anderson), founder of LCCL Construction

ABOUT THE AUTHOR

Anderson — founder, LCCL Construction

Anderson founded LCCL Construction in Finchley N3 in 2004 and still leads the design of every project; our own team then builds it under one contract, from the first survey to the completion certificate. The company has won two LABC Building Excellence Awards: Best Residential Extension in London 2024 (Bohun Grove, East Barnet) and London Regional Winner 2026, Best Conversion or Alteration to an Existing Home (Weech Road, Hampstead). LCCL is an NFB member and an LABC Registered Partner.

Every guide on this site is written from real LCCL projects. If you are planning your own, call 020 8037 7332 or book a free 30-minute consultation call.

What clients say

Verified reviews, quoted exactly

average rating is 5 out of 5
“Hired LCCL Construction to design and build us a rear house extension. Found them easy to work with and are pleased with the results. They have been recommended to us for the whole build including designs and construction. The rear extension feels amazing,…”

James Grimsdale · Google Reviews

average rating is 5 out of 5
“I highly recommend LCCL Construction. From the start of discussing ideas and planning I can tell you they were very professional and efficient. I had my kitchen and loft done a year ago now and am absolutely thrilled! Exactly what I wanted!”

Nadya Christou · Google Reviews

average rating is 5 out of 5
“We came to LCCL for a full house redesign and renovation after hearing great reviews online and through word of mouth. We couldn't be happier with the outcome. Because of the scale of the project we relied heavily on Alex and the team to provide…”

Steph Brooks · Google Reviews

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Aleksandar Madari (Anderson), founder of LCCL Construction

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