Single-storey, double-storey, rear and side extension drawings for Tandridge homes — measured to Tandridge District Council's design guidance, delivered in days and revised free until your decision, with a free approval-odds check before you commit.
Tandridge District Council granted 87% of the householder planning decisions it made in its latest published year — level with the 87% England-wide householder average. Metropolitan Green Belt covers around 94% of the district, one of the highest proportions in England, so the presumption against inappropriate development dominates decisions, which is where a policy-literate drawing pack earns its keep. Its dominant Victorian (1837–1901), Edwardian (1901–1910), 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. Tandridge carries at least one Article 4 direction, and conservation areas including Oxted, Limpsfield and Godstone remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Tandridge is determined against an 8-week statutory target.
Oxted (the principal town with railway-era Victorian and Edwardian housing, twentieth-century growth and a conservation area), Caterham (the district's largest settlement, dense Victorian-to-postwar housing across Caterham-on-the-Hill and the Valley), Warlingham (a hilltop commuter village of largely interwar and postwar detached houses and semis), Godstone (a historic green-belt village around a pond and green with a conservation area), Limpsfield (an affluent AONB-edge village of period and large detached stock with a conservation area) and Lingfield (a historic rural village with a medieval core and a conservation area) — these are the Tandridge pockets our drawings cover most. Heritage designations here include Oxted, Limpsfield, Godstone, Bletchingley, Lingfield and Chaldon. Tandridge District Council weighs each proposal against the Tandridge District Core Strategy (adopted 2008) and Local Plan Part 2: Detailed Policies (adopted July 2014), where the Surrey Hills and High Weald National Landscapes (AONBs) affect the district around Limpsfield, Oxted and the south, adding national landscape protection. Converted flats appear around Oxted and Caterham, and none of them hold householder permitted-development rights.. On roofs the borough is dual-pitch tiled roofs on the railway-era terraces and villas and hipped roofs on the interwar and postwar semis, over Victorian and Edwardian and interwar railway-era housing in Oxted and Caterham, postwar suburban semis and detached houses, large detached houses on generous plots at Woldingham and Limpsfield and historic vernacular cottages in the green-belt villages of Godstone, Bletchingley and Lingfield.
Tandridge homes come in a handful of recurring shapes, and each one points to a different extension. The borough is built largely from Victorian and Edwardian and interwar railway-era housing in Oxted and Caterham, postwar suburban semis and detached houses, large detached houses on generous plots at Woldingham and Limpsfield and historic vernacular cottages in the green-belt villages of Godstone, Bletchingley and Lingfield, 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. Tandridge District Council judges every one of them against the Tandridge District Core Strategy (adopted 2008) and Local Plan Part 2: Detailed Policies (adopted July 2014), 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. Metropolitan Green Belt covers around 94% of the district, one of the highest proportions in England, so the presumption against inappropriate development dominates decisions, so we design around it from the first sketch rather than discover it at validation.
Tandridge also protects whole streets — Oxted, Limpsfield, Godstone, Bletchingley, Lingfield and Chaldon among them. Tandridge has Article 4 directions removing permitted-development rights in parts of the district, which owners can check against the council's constraints map before assuming suburban PD rights, and its conservation areas such as Oxted, Limpsfield and Godstone add further character controls. 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 Tandridge 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 Tandridge District Council if any of these apply:
We draw the footprint, the ridge and eaves heights and the neighbours' daylight on the page — the relationships Tandridge District 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 Tandridge District Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Tandridge grants a fair share of applications broadly in line with the national picture, with overwhelming Green Belt coverage and AONB protection the pressures on anything beyond modest householder work. 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 Oxted, Caterham and Warlingham, 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 victorian and edwardian and interwar railway-era housing in oxted and caterham, a side-return infill frequently pairs with it to square off the plan; on wider historic vernacular cottages in the green-belt villages of godstone, bletchingley and lingfield, a two-storey side or rear extension can add a bedroom above without swallowing the garden.
The Surrey Hills and High Weald National Landscapes (AONBs) affect the district around Limpsfield, Oxted and the south, adding national landscape protection. 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 Tandridge District 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 Tandridge projects come up most often:
Extension drawings for Oxted's the principal town with railway-era Victorian and Edwardian housing, twentieth-century growth and a conservation area — footprint-checked, daylight-tested and drawn to Tandridge District Council's guidance.
Extension drawings for Caterham's the district's largest settlement, dense Victorian-to-postwar housing across Caterham-on-the-Hill and the Valley — footprint-checked, daylight-tested and drawn to Tandridge District Council's guidance.
Extension drawings for Warlingham's a hilltop commuter village of largely interwar and postwar detached houses and semis — footprint-checked, daylight-tested and drawn to Tandridge District Council's guidance.
Extension drawings for Godstone's a historic green-belt village around a pond and green with a conservation area — footprint-checked, daylight-tested and drawn to Tandridge District Council's guidance.
Extension drawings for Limpsfield's an affluent AONB-edge village of period and large detached stock with a conservation area — footprint-checked, daylight-tested and drawn to Tandridge District Council's guidance.
Extension drawings for Lingfield's a historic rural village with a medieval core and a conservation area — footprint-checked, daylight-tested and drawn to Tandridge District Council's guidance.
The right extension in Tandridge 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 Tandridge District 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 Oxted and Limpsfield and Article 4 directions can remove permitted-development rights.
A fixed process built around how Tandridge District Council validates and decides householder extension applications — most drawings are submission-ready within seven days of survey.
Tell us your Tandridge 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 Tandridge District 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 Tandridge District 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 Tandridge District 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 Tandridge you will need to apply to Tandridge District 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 Oxted and Limpsfield.
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 Tandridge District Council and a neighbour-consultation period, and it does not apply on designated land such as Tandridge'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 Tandridge District 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.
A householder planning application in Tandridge 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. Tandridge District 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 Tandridge District Council's building control or an approved inspector can sign the work off.
Every house and brief is different, so we price each Tandridge extension individually and send a fixed, no-obligation quote back within one working day. It covers the full drawing pack with free revisions until Tandridge District 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.