Single-storey, double-storey, rear and side extension drawings for Canley homes — measured to Coventry City Council's design guidance, delivered in days and revised free until your decision, with a free approval-odds check before you commit.
Coventry City Council granted 86% of the householder planning decisions it made in its latest published year — 1 point below the 87% England-wide householder average. Sitting between the two universities, Canley faces the city's strongest student-HMO demand, tightly managed through the Article 4 direction and HMO policy, 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.
Under Class B, a rear dormer stays permitted development up to 40m³ of added roof volume on a terrace or 50m³ on a semi-detached or detached house, while Class A allows a single-storey rear extension of 3m beyond the original rear wall on a terrace and 4m on a detached house before a full application is needed. Canley carries at least one Article 4 direction, and conservation areas including Ivy Farm Lane (Canley Hamlet) and Chapelfields remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Canley is determined against an 8-week statutory target.
Canley Hamlet (the historic Ivy Farm Lane conservation area of surviving rural cottages), Canley Estate (1930s and post-war municipal semis and terraces), Cannon Park (later housing beside the University of Warwick campus), Charter Avenue (student-heavy interwar and post-war streets), Westwood Heath (suburban semis on the south-western edge) and Tile Hill fringe (post-war estates running west toward the woods) — these are the Canley pockets our drawings cover most. Heritage designations here include Ivy Farm Lane (Canley Hamlet) and Chapelfields. Coventry City Council weighs each proposal against the Coventry Local Plan (2017), where the Ivy Farm Lane hamlet conservation area protects a small pocket of rural cottages amid the surrounding estates. The estate stock includes maisonettes and shared houses near the campuses, which carry no householder permitted-development rights.. On roofs the borough is hipped roofs on the interwar and council semis and shallow pitched roofs on the post-war terraces, over 1930s and post-war council-built estates, interwar semi-detached houses and surviving hamlet cottages at Ivy Farm Lane.
Canley homes come in a handful of recurring shapes, and each one points to a different extension. The borough is built largely from 1930s and post-war council-built estates, interwar semi-detached houses and surviving hamlet cottages at Ivy Farm Lane, 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. Coventry City Council judges every one of them against the Coventry Local Plan (2017), 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. Sitting between the two universities, Canley faces the city's strongest student-HMO demand, tightly managed through the Article 4 direction and HMO policy, so we design around it from the first sketch rather than discover it at validation.
Canley also protects whole streets — Ivy Farm Lane (Canley Hamlet) and Chapelfields among them. The Tile Hill & Canley and Westwood wards are named in Coventry's citywide Article 4 direction (in force 30 September 2023), so — with the University of Warwick on the doorstep — a house-to-small-HMO conversion here needs a change-of-use application. 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 Canley 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 Coventry 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 Coventry 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 Coventry City Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Canley approves most householder applications, with student-HMO management and the small Ivy Farm Lane conservation area the main factors behind added conditions. 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 Canley Hamlet, Canley Estate and Cannon Park, 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 1930s and post-war council-built estates, a side-return infill frequently pairs with it to square off the plan; on wider surviving hamlet cottages at ivy farm lane, a two-storey side or rear extension can add a bedroom above without swallowing the garden.
The Ivy Farm Lane hamlet conservation area protects a small pocket of rural cottages amid the surrounding estates. 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 Coventry 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 Canley projects come up most often:
Extension drawings for Canley Hamlet's the historic Ivy Farm Lane conservation area of surviving rural cottages — footprint-checked, daylight-tested and drawn to Coventry City Council's guidance.
Extension drawings for Canley Estate's 1930s and post-war municipal semis and terraces — footprint-checked, daylight-tested and drawn to Coventry City Council's guidance.
Extension drawings for Cannon Park's later housing beside the University of Warwick campus — footprint-checked, daylight-tested and drawn to Coventry City Council's guidance.
Extension drawings for Charter Avenue's student-heavy interwar and post-war streets — footprint-checked, daylight-tested and drawn to Coventry City Council's guidance.
Extension drawings for Westwood Heath's suburban semis on the south-western edge — footprint-checked, daylight-tested and drawn to Coventry City Council's guidance.
Extension drawings for Tile Hill fringe's post-war estates running west toward the woods — footprint-checked, daylight-tested and drawn to Coventry City Council's guidance.
The right extension in Canley 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 Coventry 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 Ivy Farm Lane (Canley Hamlet) and Chapelfields and Article 4 directions can remove permitted-development rights.
A fixed process built around how Coventry City Council validates and decides householder extension applications — most drawings are submission-ready within seven days of survey.
Tell us your Canley 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 Coventry 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 Coventry 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 Coventry 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 Canley you will need to apply to Coventry 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 Ivy Farm Lane (Canley Hamlet) and Chapelfields.
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 Coventry City Council and a neighbour-consultation period, and it does not apply on designated land such as Canley'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 Coventry 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 Canley address specifically.
A householder planning application in Canley 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. Coventry 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 Coventry City Council's building control or an approved inspector can sign the work off. This applies to your Canley address specifically.
Every house and brief is different, so we price each Canley extension individually and send a fixed, no-obligation quote back within one working day. It covers the full drawing pack with free revisions until Coventry City Council approves, and we tell you upfront whether your extension qualifies as permitted development. Call 020 7864 7245 to get started.
Answer five quick questions and get a free planning score for your exact address — instantly. Then, if you want the full picture, unlock the detailed analysis: your council's live approval rates, local precedents, constraints on your street and a step-by-step route to permission.
Same fixed quotes, same fast drawings — wherever your project is.