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Larger home extension prior approval in Woking — a deep single-storey rear extension to a house
Woking · Prior Approval & Neighbour Consultation

Larger home extension prior approval in Woking

The fast route to a deep single-storey rear extension in Woking — up to 6 metres on an attached house or 8 on a detached one — via Woking Borough Council's prior approval scheme rather than a full planning application.

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Woking planning decisions and design rules

Woking Borough Council granted 87% of the householder planning decisions it made in its latest published year — level with the 87% England-wide householder average. Metropolitan Green Belt covers roughly three-fifths of the borough, one of the highest shares in England, forcing growth onto the urban core, which is where a policy-literate drawing pack earns its keep. Its dominant Victorian (1837–1901), Edwardian (1901–1910), interwar (1918–1939) and postwar (1945–1970) housing stock sets the design brief on most streets.

Before permission is required, Class B allows 40m³ of added loft volume on a terrace and 50m³ on a semi or detached house, and Class A allows a 3m single-storey rear extension on a terrace or 4m on a detached house. Woking carries at least one Article 4 direction, and conservation areas including Old Woking, Horsell and Hook Heath remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Woking is determined against an 8-week statutory target.

Woking town centre (dense modern flatted and commercial regeneration), Horsell (historic village character beside Horsell Common), Old Woking (the historic parish core with a conservation area), Hook Heath (affluent large detached houses on wooded plots), Knaphill (postwar and interwar suburban semis to the west) and West Byfleet (village-character commuter settlement to the north-east) — these are the Woking pockets our drawings cover most. Heritage designations here include Old Woking, Horsell, Hook Heath, Mount Hermon, St Johns and Byfleet. Woking Borough Council weighs each proposal against the Woking Core Strategy (adopted 2012) and Site Allocations DPD (adopted 2021), where consequent town-centre densification through tall flatted schemes sits in tension with protected village character at Horsell, Old Woking and Pyrford. Converted and purpose-built flats are common and growing, heavily concentrated in the town centre, and hold no householder permitted-development rights.. On roofs the borough is pitched gabled and hipped tiled roofs on the villas and semis and steep tile-hung and gabled roofs on the affluent detached houses, over Victorian and Edwardian villas around Woking, Horsell and Maybury built after the 1838 railway, large detached stockbroker-belt houses on wooded plots at Hook Heath and Pyrford, interwar and postwar semi-detached and terraced commuter suburbia and high-density modern flats in the town centre.

How the prior approval route works in Woking

The ordinary Class A limits stop a single-storey rear extension at 3 metres on an attached house and 4 on a detached one. The larger home extension scheme doubles both, on condition that the council is told first. That notification is not an application for permission — the council cannot refuse on design, materials or policy grounds. It can only consider the effect on the amenity of adjoining premises, and only if a neighbour actually objects during the 21-day consultation.

The other conditions still apply and are strict: single storey only, no higher than 4 metres, eaves no higher than the existing eaves, and no more than half the land around the original house covered. It is not available on designated land, so a house in a conservation area such as Old Woking and Horsell cannot use it at all. Materials must be similar to the existing house, and the extension must not include a veranda, balcony or raised platform.

Woking is largely Victorian and Edwardian villas around Woking, Horsell and Maybury built after the 1838 railway, large detached stockbroker-belt houses on wooded plots at Hook Heath and Pyrford, interwar and postwar semi-detached and terraced commuter suburbia and high-density modern flats in the town centre. Metropolitan Green Belt covers roughly three-fifths of the borough, one of the highest shares in England, forcing growth onto the urban core, which matters here because an objecting neighbour puts amenity squarely in front of a case officer. Woking uses Article 4(2) directions within its conservation areas to remove specified permitted-development rights, so minor alterations to houses in areas such as Old Woking and Mount Hermon need planning consent.

Isometric drawing of a deep rear extension in Woking

Does your Woking extension qualify for prior approval?

The scheme is available where all of these hold. Fail any one and it is a full application to Woking Borough Council instead:

  • The extension is single storey and rear-facing
  • It projects no more than 6 metres on a terraced or semi-detached house, or 8 metres on a detached house
  • It is no more than 4 metres high, with eaves no higher than the existing eaves
  • The property is a house, not a flat or maisonette
  • The property is not on designated land — the scheme is unavailable in conservation areas such as Old Woking and Horsell
  • No more than half the land around the original house is covered by buildings
  • The materials are similar in appearance to the existing house
  • You notify the council BEFORE building — retrospective use of the scheme is not possible

Woking householder decisions — live from council data

Below is Woking Borough Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Woking is among the more restrictive commuter authorities, with dominant Green Belt and heathland designations the reason its countryside grant rate runs below the national average even as urban householder work fares better. Prior approval turns on neighbour amenity alone, so the drawings that matter are the ones showing the relationship to the boundary.

Source: MHCLG planning application statistics (householder decisions, England, 1 April 2025 - 31 March 2026). Compare every borough on our London approval-rate league table.

84%householder applications approved in Woking
87%national average — Woking is 3 points below the national average

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What gets through prior approval in Woking

Across Woking town centre, Horsell and Old Woking, the notifications that clear without objection are the ones that treat the neighbour as the audience. We show the extension in section against the boundary, demonstrate the 45-degree daylight relationship to the nearest habitable window, and where the plot is tight we taper the depth away from the boundary rather than running the full 6 metres to the fence.

Consequent town-centre densification through tall flatted schemes sits in tension with protected village character at Horsell, Old Woking and Pyrford. Where an objection does arrive, the council's assessment is narrow: loss of light, outlook and overbearing effect on the adjoining property, nothing else. A pack that has already answered those three points on the drawings usually survives an objection, whereas one that leaves them to the officer's imagination usually does not.

Deep single-storey rear extension to a house in Woking

Larger home extensions across Woking

We prepare prior-approval notifications across Woking. A few of the areas where deep rear extensions come up most often:

Woking town centre

Prior approval drawings for Woking town centre — dense modern flatted and commercial regeneration — dimensioned to the 6m and 8m limits and prepared for Woking Borough Council's neighbour consultation.

Horsell

Prior approval drawings for Horsell — historic village character beside Horsell Common — dimensioned to the 6m and 8m limits and prepared for Woking Borough Council's neighbour consultation.

Old Woking

Prior approval drawings for Old Woking — the historic parish core with a conservation area — dimensioned to the 6m and 8m limits and prepared for Woking Borough Council's neighbour consultation.

Hook Heath

Prior approval drawings for Hook Heath — affluent large detached houses on wooded plots — dimensioned to the 6m and 8m limits and prepared for Woking Borough Council's neighbour consultation.

Knaphill

Prior approval drawings for Knaphill — postwar and interwar suburban semis to the west — dimensioned to the 6m and 8m limits and prepared for Woking Borough Council's neighbour consultation.

West Byfleet

Prior approval drawings for West Byfleet — village-character commuter settlement to the north-east — dimensioned to the 6m and 8m limits and prepared for Woking Borough Council's neighbour consultation.

Prior approval or full application in Woking?

Same extension, two routes, very different tests.

RouteDepth allowedWhat the council may considerTimescale
Ordinary Class A permitted development3m attached / 4m detachedNothing — no application neededImmediate
Larger home extension prior approval6m attached / 8m detachedAmenity of adjoining premises, only if a neighbour objects21-day consultation, 42-day determination
Full householder applicationNo fixed limitDesign, materials, policy, amenity, everything8-week target
Any of these on designated land3m / 4m onlyPrior approval scheme unavailableFull application beyond the limits

Limits and procedure from the GPDO 2015, Schedule 2, Part 1, Class A and paragraph A.4, made permanent by amendment in 2019.

Four steps to prior approval in Woking

A process built around the 21-day consultation, which is where these schemes are won or lost.

  1. 1

    Free eligibility check

    Send us your Woking postcode and house type. We confirm whether the property is on designated land, whether the scheme is available, and what depth you can realistically take.

  2. 2

    Measured survey

    We measure the original rear wall, eaves height, boundary distances and the neighbouring windows that the amenity assessment will turn on.

  3. 3

    Notification pack

    We draw the extension to the 6m or 8m limit with the boundary relationship shown in section, and prepare the written description and adjoining-owner details Woking Borough Council needs to start the consultation.

  4. 4

    Consultation & follow-through

    We submit, track the 21-day consultation and the 42-day determination, respond to any objection on amenity grounds, and revise free until the decision.

Frequently asked questions

How deep can a rear extension be in Woking without planning permission?

Three metres on a terraced or semi-detached house and four on a detached one under ordinary permitted development. Under the larger home extension prior approval scheme those double to six and eight metres, provided you notify Woking Borough Council before starting and the conditions on height, materials and land coverage are met. The scheme is not available on designated land.

What is prior approval for a larger home extension in Woking?

It is a notification, not an application for permission. You tell Woking Borough Council what you intend to build, it writes to the adjoining owners, and they have 21 days to object. If nobody objects, you may build. If someone does, the council assesses the effect on the amenity of adjoining premises and must decide within 42 days. Design and policy are not in scope.

What happens if my neighbour objects in Woking?

The council then considers the impact on the amenity of the adjoining property — loss of light, loss of outlook, and overbearing effect — and nothing else. It cannot refuse because it dislikes the design or the materials. We prepare the drawings so those three questions are already answered in section and on the site plan, which is what usually carries an objected scheme through. This applies to your Woking address specifically. Woking Borough Council is the decision-maker.

Can I use prior approval in a Woking conservation area?

No. The larger home extension scheme is unavailable on designated land, which includes conservation areas such as Old Woking and Horsell, national landscapes, national parks and world heritage sites. On those properties the ordinary 3-metre and 4-metre limits apply, and anything deeper needs a full householder application to Woking Borough Council.

How long does prior approval take in Woking?

Twenty-one days for the neighbour consultation, and a maximum of 42 days from a valid submission for the council to determine it. If the council does not respond within 42 days you may proceed as notified. That deadline is the scheme's real advantage over a full application, and it is why validation completeness matters so much. This applies to your Woking address specifically. Woking Borough Council is the decision-maker.

Do I still need building regulations approval in Woking?

Yes — always. Prior approval deals only with the planning position. A 6-metre rear extension still needs building control approval for foundations, structure, drainage, thermal performance and fire safety, and the beam over the opening into the existing house needs designing and calculating. We prepare both sets so the notified scheme is the buildable one. This applies to your Woking address specifically. Woking Borough Council is the decision-maker.

How much do prior approval drawings in Woking cost?

We quote each Woking scheme individually, because plot shape and the boundary relationship drive the work, and send a fixed, no-obligation quote within one working day. It covers the notification pack and free revisions until Woking Borough Council determines it. Call 020 7864 7245 to start.

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