Single-storey, double-storey, rear and side extension drawings for Bournville homes — measured to Birmingham City Council's design guidance, delivered in days and revised free until your decision, with a free approval-odds check before you commit.
Birmingham City Council granted 84% of the householder planning decisions it made in its latest published year — 3 points below the 87% England-wide householder average. The Bournville Village Trust scheme of management runs alongside council planning control, and its design approval is needed for external changes across much of the estate, which is where a policy-literate drawing pack earns its keep. Its dominant Edwardian (1901–1910) and interwar (1918–1939) 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 Birmingham City Council needs a full application. Bournville carries at least one Article 4 direction, and conservation areas including Bournville Village and Bournville Tenants remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Bournville is determined against an 8-week statutory target.
Bournville Village Green (the model-village heart of cottages around the green, school and Rest House), Bournville Tenants (an early-20th-century co-partnership estate of garden-suburb housing), Selly Manor (conservation-grade cottages near the relocated timber-framed hall), Weoley Hill (Trust-managed interwar semis on tree-lined avenues), Cotteridge edge (Edwardian terraces bordering the village to the east) and Stirchley fringe (workers' terraces near the former Cadbury works) — these are the Bournville pockets our drawings cover most. Heritage designations here include Bournville Village and Bournville Tenants. Birmingham City Council weighs each proposal against Birmingham Development Plan (2017) and the Birmingham Design Guide / relevant SPDs, where the conservation-area appraisal protects the low-density garden-village layout, hedges, verges and original cottage detailing. On roofs the borough is steep-pitched tiled roofs on the Arts-and-Crafts cottages and gabled roofs on the interwar semis, over Arts-and-Crafts cottages and semis built for the Cadbury model village, interwar Bournville Tenants co-partnership housing and later 20th-century estate infill.
Bournville homes come in a handful of recurring shapes, and each one points to a different extension. The borough is built largely from Arts-and-Crafts cottages and semis built for the Cadbury model village, interwar Bournville Tenants co-partnership housing and later 20th-century estate infill, 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. Birmingham City Council judges every one of them against Birmingham Development Plan (2017) and the Birmingham Design Guide / relevant SPDs, 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. The Bournville Village Trust scheme of management runs alongside council planning control, and its design approval is needed for external changes across much of the estate, so we design around it from the first sketch rather than discover it at validation.
Bournville also protects whole streets — Bournville Village and Bournville Tenants among them. The Bournville Village conservation area carries an Article 4(2) direction, and much of the estate is additionally bound by the Bournville Village Trust's own scheme of management, so even minor external changes need consent on top of Birmingham's city-wide HMO Article 4 direction. 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.
Plenty of Bournville 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 Birmingham City Council if any of these apply:
We draw the footprint, the ridge and eaves heights and the neighbours' daylight on the page — the relationships Birmingham City Council's officers weigh first — and submit a validation-complete pack, whether that is a lawful development certificate, a prior-approval notification or a full householder application.
Below is Birmingham City Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Birmingham grants a high share of householder applications overall, but Bournville is unusual in adding the Trust's scheme of management to conservation control, so extensions here clear two approvals rather than one. 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.
Tell us about your project and get a fixed, no-obligation quote back within one working day. If you don't need planning permission at all, we'll tell you that too — for free.
Across Bournville Village Green, Bournville Tenants and Selly Manor, 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 arts-and-crafts cottages and semis built for the cadbury model village, a side-return infill frequently pairs with it to square off the plan; on wider later 20th-century estate infill, a two-storey side or rear extension can add a bedroom above without swallowing the garden.
The conservation-area appraisal protects the low-density garden-village layout, hedges, verges and original cottage detailing. 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 Birmingham City 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.
We draw extensions on every street in the borough. A few of the neighbourhoods where Bournville projects come up most often:
Extension drawings for Bournville Village Green's the model-village heart of cottages around the green, school and Rest House — footprint-checked, daylight-tested and drawn to Birmingham City Council's guidance.
Extension drawings for Bournville Tenants's an early-20th-century co-partnership estate of garden-suburb housing — footprint-checked, daylight-tested and drawn to Birmingham City Council's guidance.
Extension drawings for Selly Manor's conservation-grade cottages near the relocated timber-framed hall — footprint-checked, daylight-tested and drawn to Birmingham City Council's guidance.
Extension drawings for Weoley Hill's Trust-managed interwar semis on tree-lined avenues — footprint-checked, daylight-tested and drawn to Birmingham City Council's guidance.
Extension drawings for Cotteridge edge's Edwardian terraces bordering the village to the east — footprint-checked, daylight-tested and drawn to Birmingham City Council's guidance.
Extension drawings for Stirchley fringe's workers' terraces near the former Cadbury works — footprint-checked, daylight-tested and drawn to Birmingham City Council's guidance.
The right extension in Bournville 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 type | Permitted development? | What it adds | What Birmingham City Council checks |
|---|---|---|---|
| Single-storey rear | Often, within 3m/4m depth (6m/8m via prior approval) | Bigger kitchen-diner across the back | Depth, height, neighbour daylight (45°) |
| Side-return infill | Sometimes, if within width and height limits | Squares off an L-shaped ground floor | Width vs the original house, glazing to boundary |
| Two-storey rear/side | No — full application | Extra bedroom or bathroom above | Bulk, overlooking, 7m rear-boundary gap |
| Wraparound (rear + side) | No — full application | Whole-width open-plan ground floor | Combined footprint and garden retained |
Route depends on your street — conservation areas such as Bournville Village and Bournville Tenants and Article 4 directions can remove permitted-development rights.
A fixed process built around how Birmingham City Council validates and decides householder extension applications — most drawings are submission-ready within seven days of survey.
Tell us your Bournville 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 Birmingham City Council decisions.
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.
Chartered designers develop the single-storey, two-storey or side extension to your brief, drawn inside the permitted-development limits or to Birmingham City Council's extension design guidance.
We submit the certificate, prior-approval notice or application, manage validation and case-officer queries, and revise the drawings free until Birmingham City Council issues its decision.
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 Bournville you will need to apply to Birmingham City 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 Bournville Village and Bournville Tenants.
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 Birmingham City Council and a neighbour-consultation period, and it does not apply on designated land such as Bournville's conservation areas. We confirm which route your property qualifies for before drawing.
Two-storey and double-storey extensions almost always need a full householder application to Birmingham City 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 Bournville address specifically.
A householder planning application in Bournville 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. Birmingham City Council is the decision-maker.
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 Birmingham City Council's building control or an approved inspector can sign the work off. This applies to your Bournville address specifically.
Every house and brief is different, so we price each Bournville extension individually and send a fixed, no-obligation quote back within one working day. It covers the full drawing pack with free revisions until Birmingham City 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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Same fixed quotes, same fast drawings — wherever your project is.