Single-storey, double-storey, rear and side extension drawings for South Bank homes — measured to City of York Council's design guidance, delivered in days and revised free until your decision, with a free approval-odds check before you commit.
City of York Council granted 90% of the householder planning decisions it made in its latest published year — 3 points above the 87% England-wide householder average. The riverside New Walk / Terry Avenue setting and Knavesmire open space are protected, constraining scale on the streets that back onto them, which is where a policy-literate drawing pack earns its keep. Its dominant Victorian (1837–1901) and Edwardian (1901–1910) 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. South Bank carries at least one Article 4 direction, and conservation areas including Tadcaster Road / The Racecourse / Terry's Factory, New Walk / Terry Avenue and Bishopthorpe remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in South Bank is determined against an 8-week statutory target.
Bishopthorpe Road (independent shopping street framed by Edwardian terraces), South Bank (grid of late-Victorian and Edwardian terraces between the river and the racecourse), Scarcroft (bay-fronted terraces around Scarcroft Road and the recreation ground), Knavesmire (villas and terraces overlooking the Knavesmire and racecourse) and Clementhorpe (riverside Victorian terraces near the New Walk conservation area) — these are the South Bank pockets our drawings cover most. Heritage designations here include Tadcaster Road / The Racecourse / Terry's Factory, New Walk / Terry Avenue and Bishopthorpe. City of York Council weighs each proposal against the City of York Local Plan (adopted 2024) and the Tadcaster Road / The Racecourse / Terry's Factory conservation area appraisal, where flood risk from the Ouse limits ground-floor and outbuilding works on the Clementhorpe riverside plots. Many South Bank terraces have been split into flats, which carry no householder permitted-development rights.. On roofs the borough is pitched slate roofs on the terraces and front gables and bay roofs on the Edwardian villas, over late-Victorian and Edwardian terraces off Bishopthorpe Road, bay-fronted villas near the Knavesmire and converted terraced flats.
South Bank homes come in a handful of recurring shapes, and each one points to a different extension. The borough is built largely from late-Victorian and Edwardian terraces off Bishopthorpe Road, bay-fronted villas near the Knavesmire and converted terraced flats, 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. City of York Council judges every one of them against the City of York Local Plan (adopted 2024) and the Tadcaster Road / The Racecourse / Terry's Factory conservation area appraisal, 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 riverside New Walk / Terry Avenue setting and Knavesmire open space are protected, constraining scale on the streets that back onto them, so we design around it from the first sketch rather than discover it at validation.
South Bank also protects whole streets — Tadcaster Road / The Racecourse / Terry's Factory, New Walk / Terry Avenue and Bishopthorpe among them. The South Bank grid sits beside the Tadcaster Road / The Racecourse / Terry's Factory conservation area and the riverside New Walk / Terry Avenue conservation area, and the citywide HMO Article 4 direction applies to its terraced streets. 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 South Bank 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 City of York Council if any of these apply:
We draw the footprint, the ridge and eaves heights and the neighbours' daylight on the page — the relationships City of York 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 City of York Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. City of York grants the large majority of householder applications across South Bank, with the riverside and Knavesmire conservation settings the main factor shaping design on the streets that adjoin them. 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 Bishopthorpe Road, South Bank and Scarcroft, 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-victorian and edwardian terraces off bishopthorpe road, a side-return infill frequently pairs with it to square off the plan; on wider converted terraced flats, a two-storey side or rear extension can add a bedroom above without swallowing the garden.
Flood risk from the Ouse limits ground-floor and outbuilding works on the Clementhorpe riverside plots. 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 City of York 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 South Bank projects come up most often:
Extension drawings for Bishopthorpe Road's independent shopping street framed by Edwardian terraces — footprint-checked, daylight-tested and drawn to City of York Council's guidance.
Extension drawings for South Bank's grid of late-Victorian and Edwardian terraces between the river and the racecourse — footprint-checked, daylight-tested and drawn to City of York Council's guidance.
Extension drawings for Scarcroft's bay-fronted terraces around Scarcroft Road and the recreation ground — footprint-checked, daylight-tested and drawn to City of York Council's guidance.
Extension drawings for Knavesmire's villas and terraces overlooking the Knavesmire and racecourse — footprint-checked, daylight-tested and drawn to City of York Council's guidance.
Extension drawings for Clementhorpe's riverside Victorian terraces near the New Walk conservation area — footprint-checked, daylight-tested and drawn to City of York Council's guidance.
The right extension in South Bank 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 City of York 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 Tadcaster Road / The Racecourse / Terry's Factory and New Walk / Terry Avenue and Article 4 directions can remove permitted-development rights.
A fixed process built around how City of York Council validates and decides householder extension applications — most drawings are submission-ready within seven days of survey.
Tell us your South Bank 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 City of York 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 City of York 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 City of York 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 South Bank you will need to apply to City of York 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 Tadcaster Road / The Racecourse / Terry's Factory and New Walk / Terry Avenue.
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 City of York Council and a neighbour-consultation period, and it does not apply on designated land such as South Bank'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 City of York 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 South Bank address specifically.
A householder planning application in South Bank 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. City of York 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 City of York Council's building control or an approved inspector can sign the work off. This applies to your South Bank address specifically.
Every house and brief is different, so we price each South Bank extension individually and send a fixed, no-obligation quote back within one working day. It covers the full drawing pack with free revisions until City of York 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.