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

House extension plans in Coleshill South

Single-storey, double-storey, rear and side extension drawings for Coleshill South homes — measured to North Warwickshire Borough 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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Coleshill South planning decisions and design rules

North Warwickshire Borough Council granted 97% of the householder planning decisions it made in its latest published year — 10 points above the 87% England-wide householder average. Coleshill South contains Coleshill, Coleshill (Coventry Road) conservation areas (Coleshill designated 1969), so materials, fenestration and roof form are assessed against the appraisal, which is where a policy-literate drawing pack earns its keep. Its dominant 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. Coleshill South carries at least one Article 4 direction, and conservation areas including Coleshill and Coleshill (Coventry Road) remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Coleshill South is determined against an 8-week statutory target.

Coleshill (conservation area designated in 1969), Coleshill (Coventry Road) (conservation area designated in 1995) and Coleshill (civil parish within Coleshill South) — these are the Coleshill South pockets our drawings cover most. Heritage designations here include Coleshill and Coleshill (Coventry Road). North Warwickshire Borough Council weighs each proposal against North Warwickshire Borough Council's development plan and the design policies it applies to householder applications, where the 1,820 homes here are 34% 1955-1964, 9% 1973-1982, 8% 1965-1972, which is what sets the realistic roof and rear-projection options. On roofs the borough is shallow gabled roofs typical of that period's building and shallow trussed roofs typical of 1970s building, over late-1950s and early-1960s houses (34% of 1,820 homes), 1970s and early-1980s houses (9%) and late-1960s and early-1970s houses (8%).

Why a Coleshill South scheme is judged on Coleshill South terms

What is permitted in Coleshill South turns on designation first, so that is where we start: Coleshill (conservation area designated in 1969) and Coleshill (Coventry Road) (conservation area designated in 1995). Inside those boundaries permitted development is curtailed and North Warwickshire Borough 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, Coleshill South takes in Coleshill. North Warwickshire Borough Council has 10 recorded Article 4 directions, removing permitted development for painting the exterior — check the address before assuming PD applies in Coleshill South.

On stock, Coleshill South is late-1950s and early-1960s houses (34% of 1,820 homes), 1970s and early-1980s houses (9%) and late-1960s and early-1970s houses (8%) — which is why shallow gabled roofs typical of that period's building and shallow trussed roofs typical of 1970s building govern what a loft or rear projection can realistically be. North Warwickshire Borough Council decided 174 householder applications in the latest published year and granted 97%, with 48% issued inside the eight-week target. We draw to that record rather than to a national average.

The full build-period split for Coleshill South runs pre-1900 6% (110 homes), 1900-1918 1% (20 homes), 1919-1929 2% (30 homes), 1930-1939 5% (100 homes), 1945-1954 2% (30 homes), 1955-1964 34% (620 homes), 1965-1972 8% (140 homes), 1973-1982 9% (160 homes), 1983-1992 7% (130 homes), 1993-1999 8% (140 homes) and 2000-2008 4% (70 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.

North Warwickshire Borough Council also decides for Atherstone North and Fillongley, so a decision in Coleshill South 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 Appleby Hill, Austrey, Borough wide, Land at Mancetter and Land off Mill Lane, Fillongley, Warwickshire - Direction No 1 2004. 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.

Coleshill South by the published data

Published figures for Coleshill South and North Warwickshire Borough Council. These are the numbers that decide what is realistic on your street, so we work from them rather than from national averages.

MeasureColeshill South
Dwellings recorded1,820
Built pre-1900110 (6%)
Built 1900-191820 (1%)
Built 1919-192930 (2%)
Built 1930-1939100 (5%)
Built 1945-195430 (2%)
Built 1955-1964620 (34%)
Built 1965-1972140 (8%)
Built 1973-1982160 (9%)
Built 1983-1992130 (7%)
Built 1993-1999140 (8%)
Built 2000-200870 (4%)
Built before 19197%
Built 1919–19397%
Built 1945–200871%
Conservation areas in Coleshill South2 (Coleshill, Coleshill (Coventry Road))
Conservation areas district-wide11
Article 4 directions recorded10
Householder applications decided174
Householder applications granted97%
Decided within 8 weeks48%

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 North Warwickshire Borough Council's own, from MHCLG live table PS2 for the year to 31 March 2026.

Extension plans built around North Warwickshire Borough Council's rules

Coleshill South homes come in a handful of recurring shapes, and each one points to a different extension. The borough is built largely from late-1950s and early-1960s houses (34% of 1,820 homes), 1970s and early-1980s houses (9%) and late-1960s and early-1970s houses (8%), 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. North Warwickshire Borough Council judges every one of them against North Warwickshire Borough Council's development plan and the design policies it applies to householder applications, 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. Coleshill South contains Coleshill, Coleshill (Coventry Road) conservation areas (Coleshill designated 1969), 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.

Coleshill South also protects whole streets — Coleshill and Coleshill (Coventry Road) among them. North Warwickshire Borough Council has 10 recorded Article 4 directions, removing permitted development for painting the exterior — check the address before assuming PD applies in Coleshill South. 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 Coleshill South home

Do I need planning permission to extend my house in Coleshill South?

Plenty of Coleshill South 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 North Warwickshire Borough 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 Coleshill and Coleshill (Coventry Road), where the larger-home route and side extensions are not permitted development
  • An Article 4 direction applies to your street — Coleshill South has several, so this is checked first

Coleshill South extension approval rates — live from council data

Below is North Warwickshire Borough Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. North Warwickshire Borough Council granted 97% of its householder applications in the year to 31 March 2026, and Coleshill 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.

97%householder applications approved in North Warwickshire
87%national average — North Warwickshire is 10 points above the national average

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Which extensions get approved in Coleshill South

Across Coleshill, Coleshill (Coventry Road) and Coleshill, 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 late-1950s and early-1960s houses (34% of 1,820 homes), a side-return infill frequently pairs with it to square off the plan; on wider late-1960s and early-1970s houses (8%), a two-storey side or rear extension can add a bedroom above without swallowing the garden.

The 1,820 homes here are 34% 1955-1964, 9% 1973-1982, 8% 1965-1972, 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 North Warwickshire Borough 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 Coleshill South house

House extensions across Coleshill South

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

Coleshill

Extension drawings for Coleshill's conservation area designated in 1969 — footprint-checked, daylight-tested and drawn to North Warwickshire Borough Council's guidance.

Coleshill (Coventry Road)

Extension drawings for Coleshill (Coventry Road)'s conservation area designated in 1995 — footprint-checked, daylight-tested and drawn to North Warwickshire Borough Council's guidance.

Coleshill

Extension drawings for Coleshill's civil parish within Coleshill South — footprint-checked, daylight-tested and drawn to North Warwickshire Borough Council's guidance.

Which extension suits your Coleshill South home?

The right extension in Coleshill South 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 North Warwickshire Borough 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 Coleshill and Coleshill (Coventry Road) and Article 4 directions can remove permitted-development rights.

Four steps to an approved Coleshill South extension

A fixed process built around how North Warwickshire Borough 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 Coleshill South 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 North Warwickshire Borough 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 North Warwickshire Borough 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 North Warwickshire Borough Council issues its decision.

Frequently asked questions

Do I need planning permission to extend my house in Coleshill South?

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 Coleshill South you will need to apply to North Warwickshire Borough 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 Coleshill and Coleshill (Coventry Road).

How deep can a single-storey rear extension go in Coleshill South 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 North Warwickshire Borough Council and a neighbour-consultation period, and it does not apply on designated land such as Coleshill South's conservation areas. We confirm which route your property qualifies for before drawing.

Can I build a double-storey extension in Coleshill South?

Two-storey and double-storey extensions almost always need a full householder application to North Warwickshire Borough 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 Coleshill South address specifically.

How long does North Warwickshire Borough Council take to decide an extension application?

A householder planning application in Coleshill South 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. North Warwickshire Borough Council is the decision-maker.

Will my extension in Coleshill South 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 North Warwickshire Borough Council's building control or an approved inspector can sign the work off. This applies to your Coleshill South address specifically.

How much do extension plans in Coleshill South cost?

Every house and brief is different, so we price each Coleshill South extension individually and send a fixed, no-obligation quote back within one working day. It covers the full drawing pack with free revisions until North Warwickshire Borough 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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