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Free 2026 London Planning ReportHouse Extension Drawings in Golders Green NW11

Rear extension drawings for an interwar semi in Golders Green NW11, London Borough of Barnet
Golders Green · NW11 · Barnet

House Extension Drawings in Golders Green NW11

Fixed-fee, MCIAT-chartered house extension drawings for Golders Green (NW11) homeowners — London Borough of Barnet validation and local constraints handled from the start.

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Golders Green (NW11) contains two very different designations. The Golders Green conservation area covers the Edwardian and interwar core around Golders Green Road and Hoop Lane. To the north-east lies Hampstead Garden Suburb — a planned Arts and Crafts estate that is one of the most tightly controlled residential environments in London, and Barnet has an Article 4 direction covering it.

That Article 4 direction is the single most important fact for anyone building in the Suburb: it removes permitted development rights across the conservation area, so even modest external work needs a full planning application. Because the Suburb was designed as a complete composition, the controls extend past the buildings to the hedge lines, materials and rooflines that make up the original scheme — a level of detail most London conservation areas do not reach. Barnet's separate HMO Article 4 direction removes the permitted change to small houses in multiple occupation across the district. We establish whether an NW11 address is inside the Suburb boundary before drawing to Barnet's guidance, because the answer changes the entire route to consent.

Rear extension drawings for an interwar semi in Golders Green NW11, London Borough of Barnet
Isometric illustration of a Golders Green NW11 home house extension drawings design
Proposed floor plan
Golders Green NW11

Planning in Golders Green (NW11): what to know before you apply

NW11 spans two conservation areas with very different regimes. Hampstead Garden Suburb is covered by a Barnet Article 4 direction removing permitted development rights across the Suburb, so even modest external alterations need a full planning application, and because the Suburb is a planned Arts and Crafts composition the controls extend to hedge lines, materials and rooflines as part of the original design. The Golders Green conservation area controls the Edwardian and interwar core around Golders Green Road. Barnet's HMO Article 4 direction also removes the permitted change to small houses in multiple occupation across the district.

Typical Golders Green housing stock

Edwardian and interwar semi-detached and detached houses around Golders Green Road and Hoop Lane, and the planned Arts and Crafts housing of Hampstead Garden Suburb toward Temple Fortune.

Streets we regularly draw for in Golders Green

Golders Green Road · Finchley Road · Hoop Lane · Temple Fortune Lane

House Extension Drawings for Golders Green (NW11) homes: the package and the process

Every house extension drawings we prepare for an Golders Green property is drawn to London Borough of Barnet’s validation standards and tuned to the NW11 constraints above. Here is what the drawing package covers and how the process runs from first survey to approval.

A well-drawn extension adds space and value while sailing through the council; a poorly-drawn one triggers objections and refusals. DrawingsDirect draws rear, side-return, wraparound, double-storey and basement extensions for London homes — sized to your borough's tolerances, with daylight and neighbour impact considered before the planners raise them.

Which extension types do you draw?

Every London extension is shaped by the plot, the neighbours and the borough's design guidance. We draw them all.

Rear extension

A single-storey rear extension is often permitted development within depth limits — ideal for an open-plan kitchen-diner.

Side-return

Fills the alley beside a Victorian terrace, widening the ground floor without losing garden.

Wraparound

Combines a rear and side-return extension for a transformative ground floor, usually needing planning permission.

Double-storey

Adds space above and below, subject to tighter scale and neighbour-impact scrutiny.

Basement

Creates space downward where footprint is limited, with structural and party-wall care.

Do I need planning permission for a house extension in London?

Single-storey rear extensions within permitted development limits (up to 6m for terraced/semi-detached homes under the larger-home scheme, subject to neighbour consultation) may not need a full application. Wraparounds, double-storeys and anything in a conservation area usually do. We assess your plot and recommend the right route before drawing.

Typical London extension drawing packages
ExtensionTypical routePackageFee from
Single-storey rearPermitted development / householderPlanning + building regs£1,100
Side-returnHouseholder planningPlanning + building regs + structural£1,600
WraparoundHouseholder planningFull package + structural£2,200
Double-storeyHouseholder planningFull package + structural£2,400
FAQ

House Extension Drawings in Golders Green NW11 — FAQs

How far can I extend without planning permission in London?+
Under permitted development, single-storey rear extensions can reach 3m (terraced/semi) or 4m (detached), or up to 6–8m under the prior-approval larger-home scheme — but conservation areas and Article 4 directions can remove these rights. We check your property first.
Do extension drawings include structural calculations?+
Our full package includes structural drawings and calculations coordinated in-house, so your builder can price and build without waiting on an engineer.
How long do extension drawings take?+
Typically about 7 days from survey to a full drawing set delivered to your online portal.
Will my rear extension need a party wall agreement?+
If you build up to or on a shared boundary, excavate near a neighbour's foundations, or cut into a party wall for a steel, the Party Wall etc. Act 1996 usually applies. Our drawings show the works clearly so a party wall surveyor — or your neighbour — can see exactly what is proposed, which keeps that process quick.
Can I extend a house in a conservation area?+
Yes, but conservation areas and Article 4 directions commonly remove permitted development for rear and side extensions, so the work needs a full householder application designed to the council's heritage guidance. We confirm your property's designation before recommending a route.
Do I need planning permission for a loft or extension in Barnet?+
Across Finchley, Edgware and Hendon, Barnet's 1930s semis usually keep permitted development rights for rear extensions and hip-to-gable or dormer lofts, so a full application isn't always needed. The major exception is Hampstead Garden Suburb, where an Article 4 direction removes almost all permitted development rights. We check your address first and confirm permitted development with a Lawful Development Certificate where it applies.
What is different about building in Hampstead Garden Suburb?+
The Suburb has one of the most far-reaching Article 4 directions in London: almost all external alterations need planning permission, and the Hampstead Garden Suburb Trust must also consent to changes in parallel with the council. We handle both tracks — a carefully evidenced planning application to Barnet and the Trust's design requirements — since approval there depends on respecting the Arts-and-Crafts character precisely.
Is a hip-to-gable loft conversion allowed on my Barnet semi?+
Usually, yes. The borough's abundant interwar semis are well suited to hip-to-gable and dormer conversions, which frequently qualify as permitted development on semi-detached homes within the volume limits. Outside conservation areas and the Suburb, this is often the quickest route. We confirm eligibility, then produce the planning and building-regulations drawings.
How long does Barnet take to decide an application?+
Barnet determines most householder applications within the statutory eight-week period once validated; Suburb and conservation cases can involve additional consultation. We prepare Barnet submissions to the validation checklist, with the elevations and materials detail the council expects, to avoid the drawing queries that are the usual cause of delay.
How much do Barnet planning drawings cost?+
We agree a fixed fee before we start, typically around 30% below an architect's fee for the same council-accepted drawings, with free redraws until Barnet approves. A straightforward Finchley loft and a Hampstead Garden Suburb application differ in the evidence required, so we quote once we have seen the project and know which route applies.
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