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House extension plans in Potton — a glazed single-storey rear extension on a period home
Potton · House Extension Drawings & Planning

House extension plans in Potton

Single-storey, double-storey, rear and side extension drawings for Potton homes — measured to Central Bedfordshire Council's design guidance, delivered in days and revised free until your decision, with a free approval-odds check before you commit.

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What the data says about planning in Potton

Central Bedfordshire Council granted 91% of the householder planning decisions it made in its latest published year — 4 points above the 87% England-wide householder average. Potton contains Potton Conservation Area, Sutton Conservation Area, Tempsford (Church End) Conservation Area conservation areas, so materials, fenestration and roof form are assessed against the appraisal, which is where a policy-literate drawing pack earns its keep. Its dominant Victorian (1837–1901) housing stock sets the design brief on most streets.

Class A and Class B set the thresholds — a rear dormer to 40m³ on a terrace or 50m³ on a semi or detached, and a single-storey rear extension to 3m on a terrace or 4m on a detached house — beyond which Central Bedfordshire Council needs a full application. Potton carries at least one Article 4 direction, and conservation areas including Potton Conservation Area, Sutton Conservation Area and Tempsford (Church End) Conservation Area remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Potton is determined against an 8-week statutory target.

Potton (designated conservation area), Sutton (designated conservation area), Tempsford (Church End) (designated conservation area), Tempsford (Langford End) (designated conservation area), Wrestlingworth (designated conservation area), Sutton (civil parish within Potton), Tempsford (civil parish within Potton), Wrestlingworth and Cockayne Hatley (civil parish within Potton), Dunton (civil parish within Potton), Edworth (civil parish within Potton) and Everton (civil parish within Potton) — these are the Potton pockets our drawings cover most. Heritage designations here include Potton Conservation Area, Sutton Conservation Area, Tempsford (Church End) Conservation Area, Tempsford (Langford End) Conservation Area and Wrestlingworth Conservation Area. Central Bedfordshire Council weighs each proposal against the adopted Central Bedfordshire local plan and Central Bedfordshire Council's design guidance for householder work, where the 3,800 homes here are 14% pre-1900, 12% 1983-1992, 11% 1973-1982, which is what sets the realistic roof and rear-projection options. On roofs the borough is steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building and trussed-rafter roofs typical of 1980s building, over Victorian and earlier houses (14% of 3,800 homes), 1980s estate houses (12%) and 1970s and early-1980s houses (11%).

Designations, stock and decisions in Potton

Heritage designation is the single biggest variable in Potton, and it is address-specific: Potton (designated conservation area), Sutton (designated conservation area), Tempsford (Church End) (designated conservation area), Tempsford (Langford End) (designated conservation area) and Wrestlingworth (designated conservation area). Inside those boundaries permitted development is curtailed and Central Bedfordshire Council assesses materials, window detail and roof form against the area's own appraisal, so a scheme that would be waved through two streets away can need a full application here.

Beyond the designated areas, Potton takes in Sutton, Tempsford, Wrestlingworth and Cockayne Hatley, Dunton, Edworth and Everton. Central Bedfordshire Council has 7 recorded Article 4 directions — check the address before assuming PD applies in Potton.

On stock, Potton is Victorian and earlier houses (14% of 3,800 homes), 1980s estate houses (12%) and 1970s and early-1980s houses (11%) — which is why steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building and trussed-rafter roofs typical of 1980s building govern what a loft or rear projection can realistically be. Central Bedfordshire Council decided 844 householder applications in the latest published year and granted 91%, with 76% issued inside the eight-week target. We work from the council's own published record.

The full build-period split for Potton runs pre-1900 14% (550 homes), 1900-1918 2% (80 homes), 1919-1929 2% (80 homes), 1930-1939 6% (240 homes), 1945-1954 3% (110 homes), 1955-1964 9% (360 homes), 1965-1972 9% (350 homes), 1973-1982 11% (430 homes), 1983-1992 12% (450 homes), 1993-1999 5% (180 homes) and 2000-2008 8% (290 homes). That distribution is why pre-1900 detailing dominates the drawings here, and it is measured from council-tax records rather than assumed from the street name.

Central Bedfordshire Council also decides for Ampthill, Aspley & Woburn, Biggleswade West, Caddington, Dunstable East, Eaton Bray, Flitwick and Heath & Reach, so a decision in Potton sits inside a wider pattern of decisions we track across the same authority — useful when an officer cites a precedent from the next area over.

The Article 4 directions recorded for this council include Article 4 Direction, Fairfield Parish, Land at Lower Sundon and Land south west of Westfield Farm, Hitchin Road, Henlow Camp, Bedfordshire. Each removes a specific permitted-development right inside its own boundary, which is why the check is done on the address rather than on the town.

The published numbers behind a Potton application

Published figures for Potton and Central Bedfordshire Council. These are the numbers that decide what is realistic on your street, so we work from them rather than from national averages.

MeasurePotton
Dwellings recorded3,800
Built pre-1900550 (14%)
Built 1900-191880 (2%)
Built 1919-192980 (2%)
Built 1930-1939240 (6%)
Built 1945-1954110 (3%)
Built 1955-1964360 (9%)
Built 1965-1972350 (9%)
Built 1973-1982430 (11%)
Built 1983-1992450 (12%)
Built 1993-1999180 (5%)
Built 2000-2008290 (8%)
Built before 191917%
Built 1919–19398%
Built 1945–200857%
Conservation areas in Potton5 (Potton Conservation Area, Sutton Conservation Area…)
Conservation areas district-wide61
Article 4 directions recorded7
Householder applications decided844
Householder applications granted91%
Decided within 8 weeks76%

Dwelling stock from VOA council-tax data at 31 March 2025; conservation-area and Article 4 counts from planning.data.gov.uk (MHCLG); decision figures are Central Bedfordshire Council's own, from MHCLG live table PS2 for the year to 31 March 2026.

Extension plans built around Central Bedfordshire Council's rules

Potton homes come in a handful of recurring shapes, and each one points to a different extension. The borough is built largely from Victorian and earlier houses (14% of 3,800 homes), 1980s estate houses (12%) and 1970s and early-1980s houses (11%), so a Victorian terrace usually wants a rear or side-return infill, while an interwar semi has room for a wider single-storey wrap or a two-storey side addition. Central Bedfordshire Council judges every one of them against the adopted Central Bedfordshire local plan and Central Bedfordshire Council's design guidance for householder work, weighing footprint, height and the impact on the house next door before it looks at the elevations.

That is why the drawings decide the outcome. We set the extension depth against the permitted-development limits precisely, keep the eaves and ridge within the allowances, and plot the 45-degree daylight lines to the neighbours' windows so the case officer can see the amenity test is passed. Potton contains Potton Conservation Area, Sutton Conservation Area, Tempsford (Church End) Conservation Area conservation areas, so materials, fenestration and roof form are assessed against the appraisal, so we design around it from the first sketch rather than discover it at validation.

Potton also protects whole streets — Potton Conservation Area, Sutton Conservation Area, Tempsford (Church End) Conservation Area, Tempsford (Langford End) Conservation Area and Wrestlingworth Conservation Area among them. Central Bedfordshire Council has 7 recorded Article 4 directions — check the address before assuming PD applies in Potton. On designated land the larger-home extension route and most side extensions stop being permitted development, so we confirm your address against those layers before drawing a line.

Isometric house extension drawing for a Potton home

Do I need planning permission to extend my house in Potton?

Plenty of Potton extensions are permitted development and need no planning application — a single-storey rear extension within the depth and height limits is the common case. You will normally need to apply to Central Bedfordshire Council if any of these apply:

  • The single-storey rear extension is deeper than 3 metres on a terrace or semi, or 4 metres on a detached house (6m/8m needs prior approval under the larger-home scheme)
  • It is a two-storey or double-storey extension, or the rear extension is higher than 4 metres
  • A side extension is wider than half the original house, or more than one storey
  • Any part projects forward of the principal (front) elevation, or the extension covers more than half the garden
  • Your home is in a conservation area such as Potton Conservation Area and Sutton Conservation Area, where the larger-home route and side extensions are not permitted development
  • An Article 4 direction applies to your street — Potton has several, so this is checked first

Potton extension approval rates — live from council data

Below is Central Bedfordshire Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Central Bedfordshire Council granted 91% of its householder applications in the year to 31 March 2026, and Potton Conservation Area shapes what is approved here. A complete, policy-literate extension pack anticipates those pressure points before submission, which is why professionally drawn applications are decided faster and refused less often than DIY ones.

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

91%householder applications approved in Central Bedfordshire
87%national average — Central Bedfordshire is 4 points above the national average

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Which extensions get approved in Potton

Across Potton, Sutton and Tempsford (Church End), the extension that lands most often is the single-storey rear addition — a glazed kitchen-diner across the back of the house, kept within the permitted-development depth or taken to a full application where the ground floor wants more. On the borough's victorian and earlier houses (14% of 3,800 homes), a side-return infill frequently pairs with it to square off the plan; on wider 1970s and early-1980s houses (11%), a two-storey side or rear extension can add a bedroom above without swallowing the garden.

The 3,800 homes here are 14% pre-1900, 12% 1983-1992, 11% 1973-1982, which is what sets the realistic roof and rear-projection options. We size the extension to the amenity and daylight tests, match the roof and materials to the host house, and keep enough garden to satisfy Central Bedfordshire Council's space standards — so the scheme answers the borough's questions before an objection can raise them. Where permitted-development rights are used up or removed, we prepare the householder application to the council's extension design guidance instead.

Single-storey rear extension opening onto the garden of a Potton house

House extensions across Potton

We draw extensions on every street in the borough. A few of the neighbourhoods where Potton projects come up most often:

Potton

Extension drawings for Potton's designated conservation area — footprint-checked, daylight-tested and drawn to Central Bedfordshire Council's guidance.

Sutton

Extension drawings for Sutton's designated conservation area — footprint-checked, daylight-tested and drawn to Central Bedfordshire Council's guidance.

Tempsford (Church End)

Extension drawings for Tempsford (Church End)'s designated conservation area — footprint-checked, daylight-tested and drawn to Central Bedfordshire Council's guidance.

Tempsford (Langford End)

Extension drawings for Tempsford (Langford End)'s designated conservation area — footprint-checked, daylight-tested and drawn to Central Bedfordshire Council's guidance.

Wrestlingworth

Extension drawings for Wrestlingworth's designated conservation area — footprint-checked, daylight-tested and drawn to Central Bedfordshire Council's guidance.

Sutton

Extension drawings for Sutton's civil parish within Potton — footprint-checked, daylight-tested and drawn to Central Bedfordshire Council's guidance.

Which extension suits your Potton home?

The right extension in Potton depends on your house type and how much garden you can give up. This is how the main options compare on planning route and what they add.

Extension typePermitted development?What it addsWhat Central Bedfordshire Council checks
Single-storey rearOften, within 3m/4m depth (6m/8m via prior approval)Bigger kitchen-diner across the backDepth, height, neighbour daylight (45°)
Side-return infillSometimes, if within width and height limitsSquares off an L-shaped ground floorWidth vs the original house, glazing to boundary
Two-storey rear/sideNo — full applicationExtra bedroom or bathroom aboveBulk, overlooking, 7m rear-boundary gap
Wraparound (rear + side)No — full applicationWhole-width open-plan ground floorCombined footprint and garden retained

Route depends on your street — conservation areas such as Potton Conservation Area and Sutton Conservation Area and Article 4 directions can remove permitted-development rights.

Four steps to an approved Potton extension

A fixed process built around how Central Bedfordshire Council validates and decides householder extension applications — most drawings are submission-ready within seven days of survey.

  1. 1

    Free approval check

    Tell us your Potton postcode and house type. We confirm your conservation and Article 4 status, how much permitted-development depth you have left, and score your odds against live Central Bedfordshire Council decisions.

  2. 2

    Measured survey

    We measure the existing footprint, floor and eaves levels, boundary distances and the neighbours' window positions — the numbers the depth limits and daylight tests depend on.

  3. 3

    Extension design & drawings

    Chartered designers develop the single-storey, two-storey or side extension to your brief, drawn inside the permitted-development limits or to Central Bedfordshire Council's extension design guidance.

  4. 4

    Submission & follow-through

    We submit the certificate, prior-approval notice or application, manage validation and case-officer queries, and revise the drawings free until Central Bedfordshire Council issues its decision.

Frequently asked questions

Do I need planning permission to extend my house in Potton?

Not always. A single-storey rear extension up to 3 metres deep on a terrace or semi, or 4 metres on a detached house, and no higher than 4 metres, is usually permitted development. In Potton you will need to apply to Central Bedfordshire Council for two-storey extensions, side extensions wider than half the house, anything forward of the front wall, deeper rear extensions under the larger-home prior-approval route, and any extension in a conservation area such as Potton Conservation Area and Sutton Conservation Area.

How deep can a single-storey rear extension go in Potton without planning permission?

Standard permitted development allows 3 metres on a terraced or semi-detached house and 4 metres on a detached one. The larger-home extension scheme can double that to 6 or 8 metres, but it needs a prior-approval notification to Central Bedfordshire Council and a neighbour-consultation period, and it does not apply on designated land such as Potton's conservation areas. We confirm which route your property qualifies for before drawing.

Can I build a double-storey extension in Potton?

Two-storey and double-storey extensions almost always need a full householder application to Central Bedfordshire Council, because they fall outside permitted development on most homes. The council looks closely at bulk, overlooking of neighbours and the 7-metre gap a two-storey rear extension must keep from the rear boundary. We design to those tests and show the daylight and privacy angles on the drawings. This applies to your Potton address specifically.

How long does Central Bedfordshire Council take to decide an extension application?

A householder planning application in Potton runs to a statutory eight-week target, a larger-home prior-approval notification to around six weeks including the neighbour-consultation period, and a lawful development certificate to eight weeks. Incomplete submissions stall at validation, so we submit a complete pack and manage officer queries to keep the decision on schedule. Central Bedfordshire Council is the decision-maker.

Will my extension in Potton need building regulations approval as well as planning?

Yes — planning permission and building regulations are separate consents, and almost every extension needs both. Planning governs whether you can build it; building control governs how it is built, covering structure, insulation, drainage and fire safety. We prepare the building-regulations drawings alongside the planning set so Central Bedfordshire Council's building control or an approved inspector can sign the work off. This applies to your Potton address specifically.

How much do extension plans in Potton cost?

Every house and brief is different, so we price each Potton extension individually and send a fixed, no-obligation quote back within one working day. It covers the full drawing pack with free revisions until Central Bedfordshire Council approves, and we tell you upfront whether your extension qualifies as permitted development. Call 020 7864 7245 to get started.

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