Back-of-house extension drawings for Allestree homes — the glazed kitchen-diner across the rear, drawn to Derby City Council's depth and daylight limits, delivered in days and revised free until your decision, with a free approval-odds check first.
Derby City Council granted 93% of the householder planning decisions it made in its latest published year — 6 points above the 87% England-wide householder average. The Allestree conservation area and Allestree Hall parkland control alterations in the village core to a rural, low-density character, which is where a policy-literate drawing pack earns its keep. Its dominant interwar (1918–1939) and postwar (1945–1970) housing stock sets the design brief on most streets.
The permitted-development ceilings are fixed: 40m³ of new roof volume for a terraced loft and 50m³ for a semi or detached house under Class B, plus a 3m single-storey rear extension on a terrace or 4m on a detached house under Class A. In conservation areas such as Allestree, Markeaton and Darley Abbey those rights are removed, so we confirm your exact address before a line is drawn. A validated householder application in Allestree is determined against an 8-week statutory target.
Allestree village (the historic core around St Edmund's Church and Allestree Hall parkland), Allestree Park (a country park and golf course framing the suburb to the east), Woodlands (interwar and postwar semi-detached streets north of the village), Kingsway estate (postwar suburban housing on the western side of the district), Park Farm (a mid-20th-century neighbourhood built around its shopping precinct) and Birchover Way (later detached and semi-detached houses on generous plots) — these are the Allestree pockets our drawings cover most. Heritage designations here include Allestree, Markeaton and Darley Abbey. Derby City Council weighs each proposal against the Derby City Local Plan Part 1 (Core Strategy) and Part 2, where the suburban semis are held to spacing and building-line policy so paired and terraced groups keep their rhythm and separation. On roofs the borough is hipped roofs on the interwar and postwar semis and gabled roofs on the older village cottages and detached houses, over a former estate-village core around the church and Allestree Hall, extensive interwar and postwar semi-detached suburbia and later 20th-century detached houses on larger plots.
The rear extension is the workhorse of Allestree home improvement — it is how a dark back kitchen becomes an open family room facing the garden. Because the borough is built largely from a former estate-village core around the church and Allestree Hall, extensive interwar and postwar semi-detached suburbia and later 20th-century detached houses on larger plots, most back walls sit close to a neighbour on at least one side, and that proximity, not the design, is what Derby City Council scrutinises. The council reads the proposal against the Derby City Local Plan Part 1 (Core Strategy) and Part 2, and the first line an officer draws is the 45-degree splay from the neighbour's nearest window.
So the drawings live or die on geometry. We set the depth against the exact permitted-development figure, hold the eaves and the flat-roof or lantern build-up under the 4-metre height ceiling, and show the projection tested against both the 45-degree plan angle and the 25-degree section angle to the neighbouring windows. The Allestree conservation area and Allestree Hall parkland control alterations in the village core to a rural, low-density character, so the rear elevation is composed around it rather than corrected after an objection.
Where the property sits in a conservation area — Allestree, Markeaton and Darley Abbey among Allestree's — the larger-home extension route is switched off and even a modest rear addition needs consent. Allestree lies to the north of the city outside the Ring Road, so it is not covered by Derby's inner-city HMO Article 4 direction; the historic village core is instead protected by the Allestree conservation area. We confirm the designation before the survey.
Many single-storey rear extensions in Allestree are permitted development and need no application. You will normally need to apply to Derby City Council, or use the larger-home prior-approval route, if any of these apply:
We draw the depth, the roof build-up and the daylight splays to each neighbour on the page — the tests Derby City Council's officers apply first — and submit a validation-complete pack, whether that is a lawful development certificate, a larger-home prior-approval notice or a full householder application.
Below is Derby City Council's real householder decision record, taken from official planning statistics and refreshed as new data lands. Derby approves the large majority of applications it decides, and in Allestree the constraints are village-core conservation, suburban spacing standards, and protected open land rather than HMO pressure. Rear extensions turn most often on neighbour daylight and depth, so a drawing pack that proves those tests upfront 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.
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 Allestree village, Allestree Park and Woodlands, the approved rear extension is typically a single-storey glazed box within the depth limit, roofed either flat with a lantern or in a shallow mono-pitch, and finished in brick or render to match the host wall. On the borough's a former estate-village core around the church and allestree hall, keeping the projection to the permitted-development figure often avoids an application entirely; where owners want the full 6 metres, the larger-home route succeeds when the neighbour-consultation period passes without a sustained objection.
The suburban semis are held to spacing and building-line policy so paired and terraced groups keep their rhythm and separation. We keep the extension inside the daylight splays, set any glazed roof below the first-floor cill, and retain the garden depth Derby City Council expects — so the back elevation answers the amenity case before a neighbour can lodge one. Two-storey rear extensions we draw with the 7-metre boundary gap and privacy screening resolved on the plan.
We draw rear extensions on every street in the borough. A few of the neighbourhoods where Allestree back-of-house projects come up most often:
Rear extension drawings for Allestree village's the historic core around St Edmund's Church and Allestree Hall parkland — depth-checked, daylight-tested and drawn to Derby City Council's guidance.
Rear extension drawings for Allestree Park's a country park and golf course framing the suburb to the east — depth-checked, daylight-tested and drawn to Derby City Council's guidance.
Rear extension drawings for Woodlands's interwar and postwar semi-detached streets north of the village — depth-checked, daylight-tested and drawn to Derby City Council's guidance.
Rear extension drawings for Kingsway estate's postwar suburban housing on the western side of the district — depth-checked, daylight-tested and drawn to Derby City Council's guidance.
Rear extension drawings for Park Farm's a mid-20th-century neighbourhood built around its shopping precinct — depth-checked, daylight-tested and drawn to Derby City Council's guidance.
Rear extension drawings for Birchover Way's later detached and semi-detached houses on generous plots — depth-checked, daylight-tested and drawn to Derby City Council's guidance.
How far you can extend at the back in Allestree depends on your house type and the route you take. This is how the options compare.
| Route | Depth allowed | Consent needed | What Derby City Council checks |
|---|---|---|---|
| Standard permitted development | 3m terrace/semi · 4m detached | Lawful development certificate (optional) | Depth, 4m height, materials |
| Larger-home prior approval | 6m terrace/semi · 8m detached | Prior-approval notice + neighbour consultation | Neighbour objections on amenity |
| Full householder application | Beyond the above, or two-storey | Full planning permission | Daylight (45°/25°), bulk, garden retained |
| Conservation area | Case by case | Full planning permission | Character, roof form, boundary treatment |
The larger-home route is switched off on designated land — conservation areas such as Allestree and Markeaton and Article 4 streets need a full application.
A fixed process built around how Derby City Council validates and decides rear-extension applications — most drawings are submission-ready within seven days of survey.
Send us your Allestree postcode and house type. We confirm your conservation and Article 4 status, how much rear-extension depth you have under permitted development, and score your odds against live Derby City Council decisions.
We measure the original rear wall, floor and eaves levels, side and rear boundary distances and the neighbours' window positions — the numbers the depth limit and daylight splays depend on.
Chartered designers develop the single or two-storey rear extension to your brief, drawn inside the permitted-development limits or to Derby City Council's extension design guidance, with the daylight angles shown.
We submit the certificate, prior-approval notice or application, handle validation and case-officer queries, and revise the drawings free until Derby City Council issues its decision.
Often not. 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 Allestree. You will need to involve Derby City Council for anything deeper via the larger-home route, for two-storey rear extensions, and for any rear extension in a conservation area such as Allestree and Markeaton, where those permitted-development rights fall away.
The larger-home extension scheme lets a single-storey rear extension reach 6 metres on a terrace or semi, or 8 metres on a detached house — double the standard allowance. It is not automatic: you submit a prior-approval notification to Derby City Council, neighbours are consulted, and if one objects on amenity grounds the council rules on it. It also does not apply on designated land such as Allestree's conservation areas.
It is the daylight test Derby City Council applies to protect neighbours. Drawn on plan, a line at 45 degrees from the midpoint of the neighbour's nearest ground-floor window should not be crossed by your extension; a companion 25-degree line is checked in section. If the projection breaches it, the extension is likely to be shortened or refused, so we test and prove it on the drawings before submission. This applies to your Allestree address specifically.
A two-storey rear extension almost always needs a full householder application to Derby City Council, as it sits outside permitted development on most homes. The council checks that it stays at least 7 metres from the rear boundary, does not overbear the neighbours and avoids new overlooking. We resolve the boundary gap, privacy and daylight on the plans so the application is decided on its merits. This applies to your Allestree address specifically.
Frequently, yes. If the rear extension involves work to a shared wall, building up to the boundary, or excavating foundations near a neighbour's structure, the Party Wall etc. Act applies and you must serve notice — this is separate from Derby City Council's planning decision. We flag it early and can prepare the drawings a party-wall surveyor needs alongside the planning set. This applies to your Allestree address specifically.
We price each Allestree rear extension on its own footprint and send a fixed, no-obligation quote within one working day. It covers the full drawing pack with free revisions until Derby City Council approves, and we confirm at the outset whether your extension is permitted development, needs prior approval, or a full application. Call 020 7864 7245 to begin.
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Same fixed quotes, same fast drawings — wherever your project is.