Hip-to-gable drawings for Selly Oak semis and end-terraces — building the sloping hipped end up into a flat gable wall to unlock the full width of the roof, drawn to Birmingham City Council's guidance, delivered in days and revised free until your decision, with a free approval-odds check first.
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 HMO concentration policy — refusing conversions where 10% or more of homes within 100m are already non-family — bites hardest in Bournbrook, which is where a policy-literate drawing pack earns its keep. Its dominant Victorian (1837–1901), Edwardian (1901–1910) and interwar (1918–1939) 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. Selly Oak carries at least one Article 4 direction, and conservation areas including Selly Park and Selly Park Avenues remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Selly Oak is determined against an 8-week statutory target.
Bournbrook (dense Victorian terraces beside the university, largely student HMOs), Selly Park (a conservation area of spacious plots and architect-designed houses), Selly Park Avenues (a distinct conservation area of Edwardian avenue housing), Tiverton Road (terraced streets in the thick of the student lettings market), Weoley Castle edge (interwar council-built semis to the west) and Ten Acres (terraces and light-industrial frontages towards Stirchley) — these are the Selly Oak pockets our drawings cover most. Heritage designations here include Selly Park and Selly Park Avenues. Birmingham City Council weighs each proposal against Birmingham Development Plan (2017) and the Birmingham Design Guide / relevant SPDs, where the Selly Park conservation-area appraisal protects mature planting, front-boundary walls and generous plot spacing. Much of the Bournbrook terraced stock operates as HMOs and converted flats, none of which hold householder permitted-development rights.. On roofs the borough is gabled roofs on the terraced streets and hipped roofs on the Selly Park villas and interwar semis, over Victorian and Edwardian terraces across Bournbrook and the student core, larger architect-designed villas in Selly Park and interwar semi-detached houses on the outer estates.
The hip-to-gable is the semi's loft, and Selly Oak has the stock that needs it — the borough runs to Victorian and Edwardian terraces across Bournbrook and the student core, larger architect-designed villas in Selly Park and interwar semi-detached houses on the outer estates, and wherever the roof is hipped it wastes the triangle of space where the slope cuts in at the side. Build that hip up into a gable wall and the loft gains full-height room right across the width, usually with a rear dormer behind it. Birmingham City Council judges the scheme against Birmingham Development Plan (2017) and the Birmingham Design Guide / relevant SPDs, and because the gable is a side elevation it is read against the neighbouring house first.
That neighbour relationship is the drawing's job. We build the gable to the original ridge line, match the brick or render and the verge detail to the host, and where the house is one of a mirrored pair we show the new gable against the neighbour's retained hip so the officer can weigh the balance. The HMO concentration policy — refusing conversions where 10% or more of homes within 100m are already non-family — bites hardest in Bournbrook, and on a paired roof that is precisely the test a hip-to-gable has to pass.
Where Selly Oak's streets are designated — Selly Park and Selly Park Avenues among them — a hip-to-gable is scrutinised hard, because losing a hip changes the roofscape the area is protected for. Selly Oak sits at the heart of Birmingham's student belt, where the city-wide Article 4 direction requires planning permission for any C3-to-C4 HMO conversion, while the Selly Park and Selly Park Avenues conservation areas protect the leafier residential streets to the east. We check the designation before the gable is drawn.
A hip-to-gable in Selly Oak is not permitted development — extending the roof up and out over the hip takes it past what Class B allows — so it needs a full application to Birmingham City Council. These are the points the council weighs:
We draw the new gable to the existing ridge, the verge and materials matched to the host, and the balance with the neighbour's retained hip — the side-elevation relationships Birmingham City Council's officers check first — and submit a validation-complete householder application, usually with the rear dormer on the same drawings.
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 Selly Oak is defined by HMO-concentration control in the student core set against conservation protection in Selly Park. A hip-to-gable turns on side-elevation bulk and the balance of the pair, so a pack that draws the gable against the neighbour is decided faster and refused less often than a DIY submission.
Source: MHCLG planning application statistics (householder decisions, England, 1 April 2025 - 31 March 2026). Compare every borough on our London approval-rate league table.
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Across Bournbrook, Selly Park and Selly Park Avenues, the hip-to-gable that goes through is the restrained one: the gable built to the original ridge rather than above it, materials matched so the extended end reads as part of the house, and — on a pair — the new wall sitting comfortably beside the neighbour's hip rather than overwhelming it. On the borough's victorian and edwardian terraces across bournbrook and the student core, squaring one or both hips is what makes the whole loft usable, which is why it is nearly always drawn with a rear dormer behind.
The Selly Park conservation-area appraisal protects mature planting, front-boundary walls and generous plot spacing. We hold the gable to the ridge, detail the verge and the flank window to sit quietly, and present the gable and dormer as one roof alteration — so Birmingham City Council assesses a single coherent change to the roof rather than two competing ones.
We draw hip-to-gable lofts on the semi-detached and end-of-terrace streets across the borough. A few of the neighbourhoods where Selly Oak hip-to-gables come up most often:
Hip-to-gable loft drawings for Bournbrook's dense Victorian terraces beside the university, largely student HMOs — ridge-matched, pair-balanced and drawn to Birmingham City Council's guidance.
Hip-to-gable loft drawings for Selly Park's a conservation area of spacious plots and architect-designed houses — ridge-matched, pair-balanced and drawn to Birmingham City Council's guidance.
Hip-to-gable loft drawings for Selly Park Avenues's a distinct conservation area of Edwardian avenue housing — ridge-matched, pair-balanced and drawn to Birmingham City Council's guidance.
Hip-to-gable loft drawings for Tiverton Road's terraced streets in the thick of the student lettings market — ridge-matched, pair-balanced and drawn to Birmingham City Council's guidance.
Hip-to-gable loft drawings for Weoley Castle edge's interwar council-built semis to the west — ridge-matched, pair-balanced and drawn to Birmingham City Council's guidance.
Hip-to-gable loft drawings for Ten Acres's terraces and light-industrial frontages towards Stirchley — ridge-matched, pair-balanced and drawn to Birmingham City Council's guidance.
A hip-to-gable only applies where the roof is hipped — and what it gains depends on the house. This is how the cases compare.
| Roof / house type | Hip-to-gable route | What it gains | What Birmingham City Council checks |
|---|---|---|---|
| Hipped semi-detached | Full application, one gable | Full-width loft on the hipped side | Balance with the paired neighbour |
| Hipped end-terrace | Full application, one gable | Squares off the exposed end | Side elevation and street rhythm |
| Hipped detached | Full application, one or both ends | Loft across the whole roof | Bulk and the wider roofscape |
| Already gabled roof | Not needed — dormer only | Space via a rear dormer instead | Dormer volume and set-back |
In conservation areas such as Selly Park and Selly Park Avenues, the loss of a hip is resisted and a hip-to-gable is assessed on its effect on the protected roofscape.
A fixed process built around how Birmingham City Council validates and decides hip-to-gable applications — most drawings are submission-ready within seven days of survey.
Send us your Selly Oak postcode and whether your roof is hipped one or both ends. We confirm your conservation and Article 4 status and score your odds against live Birmingham City Council decisions.
We measure the ridge and eaves, the hip geometry and — on a pair — the neighbour's roof, so the new gable can be drawn to the original ridge and balanced against the adjoining house.
Chartered designers develop the gable and its rear dormer to your brief, drawn to Birmingham City Council's roof-alteration guidance with the side elevation and neighbour relationship resolved on the page.
We submit the householder application, manage validation and case-officer queries, and revise the drawings free until Birmingham City Council issues its decision.
Yes. A hip-to-gable rebuilds the sloping hipped end of the roof as a vertical gable, and because that extends the roof it falls outside permitted development — so it always needs a full householder application to Birmingham City Council, whether or not your street is designated. It is usually submitted together with a rear dormer as a single roof-alteration application. This applies to your Selly Oak address specifically.
It replaces the roof's sloping hipped end with a flat gable wall built up to the ridge, turning the wasted triangle where the slope cuts in into full-height loft space across the width of the house. Selly Oak's hipped semis and end-terraces suit it especially well, and it is nearly always paired with a rear dormer to open up the back of the roof too. Birmingham City Council is the decision-maker.
Yes, and a matching pair often reads better to Birmingham City Council than a single gable on one side, because it keeps the two houses balanced. Where only one owner converts, we draw the new gable carefully against the neighbour's retained hip so the officer can see the pair still works. The balance of the pair is one of the main things the council weighs. This applies to your Selly Oak address specifically.
Almost always. The gable opens up the side of the roof and a rear dormer opens up the back, and together they make the whole loft usable — so in Selly Oak the two are typically drawn and submitted as one application to Birmingham City Council. Presenting them together means the council assesses a single coherent change to the roof rather than two separate alterations.
Usually, on a semi or end-terrace. The gable is built up off the flank, and the loft steelwork often bears on the party wall, so the Party Wall etc. Act applies and notice must be served before work starts — separately from Birmingham City Council's planning decision. We detail the junction on the drawings and flag the notice early so a surveyor can be appointed without delay. This applies to your Selly Oak address specifically.
We price each Selly Oak hip-to-gable individually, because the roof geometry and whether it is one gable or two vary house to house, and send a fixed, no-obligation quote within one working day. It covers the full drawing pack — usually gable plus rear dormer — with free revisions until Birmingham City Council approves. Call 020 7864 7245 to start.
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