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Finchley N3 and N12 · House refurbishment

House refurbishment in Finchley

Extensions, roofs and fronts, read against Barnet’s Finchley guidance

A whole-house refurbishment in Finchley usually reaches the roof, the rear and the front door as well as the rooms. For the Arts and Crafts houses on Village Road, Barnet’s 2013 design guidance sets out how far a rear extension, a dormer or a rooflight can go; in Church End, its 2011 appraisal names the small alterations it counts as harm. This page reads those documents house type by house type.

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House refurbishment in Finchley at a glance

On Village Road the lie of the land helps decide the shape of an extension. Barnet’s 2013 design guidance for Finchley Garden Village says a single-storey rear extension should generally be no wider than half the rear elevation and of modest depth, that flat-roofed extensions will not be permitted and that two-storey ones are unlikely to be supported. Depth limits are tighter on the western side of the green, where the ground drops away behind the houses; the 2013 appraisal records the eastern houses standing significantly higher than those opposite.

Finchley Garden Village Conservation Area Design Guidance, 26 September 2013 · Finchley Garden Village Conservation Area character appraisal and management proposals, 26 September 2013

For the whole area, including conservation areas, permissions and working hours, read our Finchley renovation guide.

Approved guide prices

What does a house refurbishment cost in Finchley?

Cost in Finchley depends on depth of work. A cosmetic refurbishment that keeps the existing layout runs £650–£1,250/sqm (typically £90,000–£180,000), while a back-to-brick renovation runs £2,250–£3,250/sqm (typically £275,000–£475,000), excluding VAT. A written scope and site assessment are needed before any project price can be fixed.

Scope of workGuide rateTypical total
Cosmetic — existing layout retained£650–£1,250/sqm£90,000–£180,000
Back-to-brick renovation£2,250–£3,250/sqm£275,000–£475,000
Typical programme16–32 weeks on site

Guide rates exclude VAT and are set by depth of work, not by postcode. Compare scopes in our London refurbishment cost-per-square-metre guide or try the cost calculator.

The buildings

Cottages, garden-village houses and villas beyond the boundary

Finchley’s houses answer to different guidance depending on where they stand. Three groups show the range: the Victorian cottages of Church End, the Village Road houses and the villas scattered around Moss Hall Crescent.

Church End’s 2011 appraisal lists terraces of small Victorian cottages, among them College Terrace and 297-311 Regents Park Road, and notes that render was often laid over brick on the modest cottages facing Regents Park Road. It also records the harm done by small changes to historic buildings there: modern roof coverings, roof lights, security lights and satellite dishes. Before a roof is stripped or a front re-rendered, establish what the original finish was and keep that evidence for the drawings.

Finchley Church End Conservation Area character appraisal and management proposals, 31 August 2011

In Finchley Garden Village the 2013 guidance says matching tiles must be used whenever a roof is re-covered or extended, and that concrete or other uncharacteristic tiles will be refused. It treats taking down a chimney stack, wholly or in part, as unacceptable. Walls follow the same logic: painting them any colour other than white is not likely to be accepted, roughcast repairs must match the original finish, and removing tile-hanging or timber boarding will be resisted.

Finchley Garden Village Conservation Area Design Guidance, 26 September 2013

Not every North Finchley villa is protected alike. The 2015 Moss Hall Crescent appraisal notes similar villas from the former Moss Hall Estate dotted through the surrounding streets, and found them unsuitable for inclusion in the conservation area. For a house outside any conservation area and on neither list, where planning permission is needed, Barnet’s 2026 extensions guidance says a single-storey rear extension should be no more than 3 metres deep on a terraced house, 3.5 metres on a semi-detached one and 4 metres on a detached one, measured from the original rear wall.

Moss Hall Crescent Conservation Area character appraisal and management proposals, 26 August 2015 · Barnet Sustainable Design and Development Guidance SPD, adopted 15 June 2026: Part 4, guidance on residential extensions and alterations (not intended for conservation areas or nationally or locally listed buildings)

Permissions and local rules

What to check on a Finchley house before drawing

Dormers and rooflights on Village Road

Can I convert the loft with a dormer?

The Village Road houses were built with neither dormers nor rooflights, and the 2013 guidance refuses front dormers outright. Side-facing dormers, or those on prominent slopes, are unlikely to be favoured, and where one is accepted there is generally a single dormer per roof slope. Rooflights are not acceptable on front slopes; elsewhere they should be slim, flush conservation-type units, normally no larger than 460 by 610 millimetres, with drawings at 1:10.

Finchley Garden Village Conservation Area Design Guidance, 26 September 2013

Porches, front doors and parking

Front entrances are treated as part of a planned group. The guidance will not approve enclosed porches or over-sized canopies, resists filling in recessed entrances, and asks for surviving original doors to be repaired; where that is impossible, exact replicas are required, with frames painted white or black. A front garden is not normally to become a hardstanding, though in some places a small one beside a house fronting Village Road may be approved.

Finchley Garden Village Conservation Area Design Guidance, 26 September 2013

Positive buildings in Church End

My house is not listed. Does that matter?

Church End’s appraisal marks unlisted buildings that add to the area as ‘positive’ on its townscape map, and says applications to extend or alter them will be considered particularly carefully, with demolition normally resisted. Barnet’s adopted Local Plan uses conservation-area appraisals in assessing applications and expects alterations there to normally use materials matching the original. Check that map before assuming an unlisted house escapes scrutiny.

Finchley Church End Conservation Area character appraisal and management proposals, 31 August 2011 · Barnet Local Plan 2021–2036, adopted 4 March 2025: the plan and its adoption documents

Trees, gardens and anything below ground

The 2013 appraisal records most of the trees west and south of Village Road, in Windsor Open Space, as included in a Tree Preservation Order, together with some in the back gardens of Hendon Avenue. The design guidance adds that the garden village was built without basements and that a proposal that results in a prominent basement will be resisted. Plot the trees accurately on the survey before an extension, store or excavation is placed.

Finchley Garden Village Conservation Area character appraisal and management proposals, 26 September 2013 · Finchley Garden Village Conservation Area Design Guidance, 26 September 2013 · Tree preservation orders and conservation-area trees

Working hours, skips, parking and the conservation area maps for the whole area are in our Finchley guide. Local guidance checked ; requirements depend on the address, the building and the complete proposal.

What the work covers

What a Finchley house refurbishment covers

Roofs, chimneys and walls in matching materials

On a cottage, a garden-village house or a villa, the survey records the roof covering, ridge and chimney details, render, tile-hanging and boarding before anything is specified. Repairs then follow the original materials, and a lost detail is reinstated where there is enough evidence to copy it accurately, the test Barnet’s Local Plan sets for reinstatement in its conservation areas.

Barnet Local Plan 2021–2036, adopted 4 March 2025: the plan and its adoption documents

An extension planned from the original rear wall

Any addition is drawn against the original rear wall, the slope of the garden and the houses either side, so that its width, depth and roof form can be tested before an application. Where an earlier owner left an unsympathetic addition, the Village Road guidance asks for its improvement to be considered as part of new work, so the brief can include putting it right.

Finchley Garden Village Conservation Area Design Guidance, 26 September 2013

Services kept off the front

Air-conditioning units, satellite dishes and their cables are placed where the street does not see them. On Village Road the guidance says units must not be visible from the street or from neighbouring gardens, external pipe runs should be planned for the least visual impact and dishes should normally sit on rear or side walls. The same care suits a Church End cottage, where the appraisal counts such fixtures among the harm.

Finchley Garden Village Conservation Area Design Guidance, 26 September 2013 · Finchley Church End Conservation Area character appraisal and management proposals, 31 August 2011

How we work

How we run a Finchley house refurbishment

  1. Free feasibility visit

    We walk round the house with you and discuss what is feasible.

  2. Survey

    Rooms, levels and features to keep are measured, with opening-up or asbestos checks where needed.

  3. Design and consents

    Our own architects and structural engineers design the layout and structural openings, plan the service routes with them, and identify which consents and party wall notices apply.

  4. Price and contract

    A fixed written price and a JCT contract follow the survey, scope and specification. It records allowances, exclusions and how changes are priced.

  5. On site

    Work is inspected before it is covered, and a director reviews key decisions.

  6. Handover

    Testing, commissioning and snagging. Completed work carries a 12-month defects-rectification period under the JCT contract terms.

Real projects, clearly located

Examples of our house refurbishment work elsewhere in London

None of these projects is in Finchley. Each card names where the work was done, so you can judge the finish and the approach before you brief your own.

Your brief

Before you ask for a quotation

  1. Photograph the house as it stands

    Take dated photographs of the front, roof and rear, and of every window, door and chimney. They show which features are original and which came later, which matters when the guidance asks you to improve earlier alterations rather than copy them.

  2. Gather the property’s papers

    Collect the title documents, any earlier planning or building-control approvals and the certificates for past work. On Village Road the original Co-Partnership leases controlled alterations inside and out, so ask your conveyancer what covenants your own title carries.

  3. List what must stay and what may change

    Mark the rooms you want to change, the features you want kept and the outside work you hope for, such as a rear extension, a loft room or a parking space. Each item can then be tested against the guidance for your street before design starts.

Ready to take the next step? Send the address and a short outline of the work.

Book a free feasibility visit

Questions before you begin

House refurbishment in Finchley: questions

Can I build a two-storey extension on a Village Road house?

It is unlikely. Barnet’s 2013 guidance for Finchley Garden Village says two-storey extensions can significantly alter the character of a house and are therefore unlikely to be supported. It also says an L-shaped extension will be refused and front extensions strongly resisted. A modest single-storey addition at the rear is the form the guidance leaves open, and every application is still judged on its own merits.

Finchley Garden Village Conservation Area Design Guidance, 26 September 2013

Have recent window and door replacements on Village Road needed applications?

Barnet’s register shows two recent ones that went through the planning process. In 2026 the council approved, subject to conditions, householder applications at houses on Village Road to replace windows to match the existing and to replace a front door and its frame. Each application is decided on its own facts, so treat these as examples of the route rather than a promise of the outcome.

Barnet planning register: public access search (planning, building control and licensing)

My North Finchley villa looks like the Moss Hall Crescent houses. Is it in the conservation area?

Not necessarily. The 2015 appraisal notes villas of a similar style from the former Moss Hall Estate in the surrounding streets and judged them unsuitable for inclusion. Check the address on Barnet’s Moss Hall Crescent boundary map. If the house lies outside it and is on neither the national nor the local list, the council’s general extensions guidance applies to any addition that needs planning permission.

Moss Hall Crescent Conservation Area character appraisal and management proposals, 26 August 2015 · Barnet boundary map: Moss Hall Crescent Conservation Area · Barnet Sustainable Design and Development Guidance SPD, adopted 15 June 2026: Part 4, guidance on residential extensions and alterations (not intended for conservation areas or nationally or locally listed buildings)

My neighbour already has a dormer. Does that help my application?

Not on its own. Barnet’s Village Road guidance says earlier insensitive alterations will not be accepted as a justification for further uncharacteristic changes, and it asks owners to consider improving past alterations as part of new work. A proposal is therefore judged on its own design and on the group of houses, not on what already stands next door.

Finchley Garden Village Conservation Area Design Guidance, 26 September 2013

Did the original Finchley Garden Village leases control alterations?

They did. Barnet’s 2013 guidance records that the Finchley Co-Partnership Society protected the village with stringent leases whose restrictions covered external and internal alterations alike. The guidance gives this as history and does not say those terms still bind any house, so find out from your conveyancer what your own title contains before planning internal changes.

Finchley Garden Village Conservation Area Design Guidance, 26 September 2013

Where can a satellite dish or CCTV camera go on a Finchley Garden Village house?

Away from the front. The 2013 guidance says dishes should normally sit on rear or side elevations, or in back gardens where planting can screen them, and that CCTV cameras need full planning consent. Plan the cable routes at the same time as the rest of the refurbishment, so the front elevation stays clear of new fixings.

Finchley Garden Village Conservation Area Design Guidance, 26 September 2013

How much does a house refurbishment cost in Finchley?

It depends on scope. In Finchley, a cosmetic refurbishment keeping the existing layout runs £650–£1,250/sqm (typically £90,000–£180,000); a back-to-brick renovation runs £2,250–£3,250/sqm (typically £275,000–£475,000), excluding VAT. A written scope and site assessment come before any fixed price.

Book a free feasibility visit

Talk to us about your Finchley house

Tell us the address and what you want to change in your Finchley house. We reply within one working day, Monday to Friday, 8am to 6pm.

Or call 020 7101 3168. We serve Finchley from our studio at Unit 3, Palace Court, 250 Finchley Road, London NW3 6DN.

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