Single-storey, double-storey, rear and side extension drawings for Basingstoke and Deane homes — measured to Basingstoke and Deane Borough Council's design guidance, delivered in days and revised free until your decision, with a free approval-odds check before you commit.
Basingstoke and Deane Borough Council granted 96% of the householder planning decisions it made in its latest published year — 9 points above the 87% England-wide householder average. Basingstoke and Deane contains Ashmansworth, Basingstoke Canal, Bradley conservation areas (Ashmansworth designated 1989), so materials, fenestration and roof form are assessed against the appraisal, which is where a policy-literate drawing pack earns its keep. Its dominant Victorian (1837–1901) and postwar (1945–1970) housing stock sets the design brief on most streets.
Class A and Class B set the thresholds — a rear dormer to 40m³ on a terrace or 50m³ on a semi or detached, and a single-storey rear extension to 3m on a terrace or 4m on a detached house — beyond which Basingstoke and Deane Borough Council needs a full application. Basingstoke and Deane carries at least one Article 4 direction, and conservation areas including Ashmansworth, Basingstoke Canal and Bradley remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Basingstoke and Deane is determined against an 8-week statutory target.
Ashmansworth (conservation area designated in 1989), Basingstoke Canal (conservation area designated in 1977), Bradley (conservation area designated in 1992), Bramley and Bramley Green (conservation area designated in 1983), Brown and Chilton Candover (conservation area designated in 1981), Church Oakley (conservation area designated in 1976), Church Road, Tadley (conservation area designated in 1982), Cliddesden (conservation area designated in 1981), Basing & Upton Grey (ward of Basingstoke and Deane), Bramley (ward of Basingstoke and Deane), Evingar (ward of Basingstoke and Deane), Oakley & The Candovers (ward of Basingstoke and Deane), Tadley & Pamber (ward of Basingstoke and Deane) and Winklebury & Manydown (ward of Basingstoke and Deane) — these are the Basingstoke and Deane pockets our drawings cover most. Heritage designations here include Ashmansworth, Basingstoke Canal, Bradley, Bramley and Bramley Green, Brown and Chilton Candover, Church Oakley, Church Road, Tadley and Cliddesden. Basingstoke and Deane Borough Council weighs each proposal against the adopted Basingstoke and Deane local plan and Basingstoke and Deane Borough Council's design guidance for householder work, where the 25,000 homes here are 17% 1973-1982, 14% 1965-1972, 7% pre-1900, which is what sets the realistic roof and rear-projection options. On roofs the borough is shallow trussed roofs typical of 1970s building and shallow-pitched roofs and integral garages typical of that period's building, over 1970s and early-1980s houses (17% of 25,000 homes), late-1960s and early-1970s houses (14%) and Victorian and earlier houses (7%).
Heritage designation is the single biggest variable in Basingstoke and Deane, and it is address-specific: Ashmansworth (conservation area designated in 1989), Basingstoke Canal (conservation area designated in 1977), Bradley (conservation area designated in 1992), Bramley and Bramley Green (conservation area designated in 1983), Brown and Chilton Candover (conservation area designated in 1981), Church Oakley (conservation area designated in 1976), Church Road, Tadley (conservation area designated in 1982) and Cliddesden (conservation area designated in 1981). Inside those boundaries permitted development is curtailed and Basingstoke and Deane Borough Council assesses materials, window detail and roof form against the area's own appraisal, so a scheme that would be waved through two streets away can need a full application here.
Beyond the designated areas, Basingstoke and Deane takes in Basing & Upton Grey, Bramley, Evingar, Oakley & The Candovers, Tadley & Pamber and Winklebury & Manydown. Basingstoke and Deane Borough Council has 3 recorded Article 4 directions — check the address before assuming PD applies in the district.
On stock, Basingstoke and Deane is 1970s and early-1980s houses (17% of 25,000 homes), late-1960s and early-1970s houses (14%) and Victorian and earlier houses (7%) — which is why shallow trussed roofs typical of 1970s building and shallow-pitched roofs and integral garages typical of that period's building govern what a loft or rear projection can realistically be. Basingstoke and Deane Borough Council decided 616 householder applications in the latest published year and granted 96%, with 59% issued inside the eight-week target. We work from the council's own published record.
The full build-period split for Basingstoke and Deane runs pre-1900 3% (190 homes), 1900-1918 0% (30 homes), 1919-1929 0% (10 homes), 1930-1939 6% (350 homes), 1945-1954 3% (170 homes), 1955-1964 30% (1,850 homes), 1965-1972 33% (1,990 homes), 1973-1982 4% (260 homes), 1983-1992 5% (310 homes), 1993-1999 4% (220 homes) and 2000-2008 3% (170 homes). That distribution is why pre-1900 detailing dominates the drawings here, and it is measured from council-tax records rather than assumed from the street name.
Basingstoke and Deane Borough Council also decides for Basing & Upton Grey, Bramley, Evingar, Oakley & The Candovers, Tadley & Pamber and Winklebury & Manydown, so a decision in Basingstoke and Deane sits inside a wider pattern of decisions we track across the same authority — useful when an officer cites a precedent from the next area over.
The Article 4 directions recorded for this council include Basing View, Basingstoke Town and Chineham and the surrounding villages of Old Basing, Oakley and Sherborne St John. and Chineham Business Park and Hampshire International Business Park. Each removes a specific permitted-development right inside its own boundary, which is why the check is done on the address rather than on the town.
Published figures for Basingstoke and Deane and Basingstoke and Deane Borough Council. These are the numbers that decide what is realistic on your street, so we work from them rather than from national averages.
| Measure | Basingstoke and Deane |
|---|---|
| Dwellings recorded | 25,000 |
| Built pre-1900 | 190 (3%) |
| Built 1900-1918 | 30 (0%) |
| Built 1919-1929 | 10 (0%) |
| Built 1930-1939 | 350 (6%) |
| Built 1945-1954 | 170 (3%) |
| Built 1955-1964 | 1,850 (30%) |
| Built 1965-1972 | 1,990 (33%) |
| Built 1973-1982 | 260 (4%) |
| Built 1983-1992 | 310 (5%) |
| Built 1993-1999 | 220 (4%) |
| Built 2000-2008 | 170 (3%) |
| Built before 1919 | 12% |
| Built 1919–1939 | 5% |
| Built 1945–2008 | 67% |
| Conservation areas in Basingstoke and Deane | 8 (Ashmansworth, Basingstoke Canal…) |
| Conservation areas district-wide | 43 |
| Article 4 directions recorded | 3 |
| Householder applications decided | 616 |
| Householder applications granted | 96% |
| Decided within 8 weeks | 59% |
Dwelling stock from VOA council-tax data at 31 March 2025; conservation-area and Article 4 counts from planning.data.gov.uk (MHCLG); decision figures are Basingstoke and Deane Borough Council's own, from MHCLG live table PS2 for the year to 31 March 2026.
Basingstoke and Deane homes come in a handful of recurring shapes, and each one points to a different extension. The borough is built largely from 1970s and early-1980s houses (17% of 25,000 homes), late-1960s and early-1970s houses (14%) and Victorian and earlier houses (7%), 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. Basingstoke and Deane Borough Council judges every one of them against the adopted Basingstoke and Deane local plan and Basingstoke and Deane Borough Council's design guidance for householder work, 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. Basingstoke and Deane contains Ashmansworth, Basingstoke Canal, Bradley conservation areas (Ashmansworth designated 1989), so materials, fenestration and roof form are assessed against the appraisal, so we design around it from the first sketch rather than discover it at validation.
Basingstoke and Deane also protects whole streets — Ashmansworth, Basingstoke Canal, Bradley, Bramley and Bramley Green, Brown and Chilton Candover, Church Oakley, Church Road, Tadley and Cliddesden among them. Basingstoke and Deane Borough Council has 3 recorded Article 4 directions — check the address before assuming PD applies in the district. 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 Basingstoke and Deane 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 Basingstoke and Deane Borough Council if any of these apply:
We draw the footprint, the ridge and eaves heights and the neighbours' daylight on the page — the relationships Basingstoke and Deane Borough 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 Basingstoke and Deane Borough Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Basingstoke and Deane Borough Council granted 96% of 616 householder decisions in the year to 31 March 2026, 59% of them inside eight weeks. 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 Ashmansworth, Basingstoke Canal and Bradley, 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 1970s and early-1980s houses (17% of 25,000 homes), a side-return infill frequently pairs with it to square off the plan; on wider victorian and earlier houses (7%), a two-storey side or rear extension can add a bedroom above without swallowing the garden.
The 25,000 homes here are 17% 1973-1982, 14% 1965-1972, 7% pre-1900, which is what sets the realistic roof and rear-projection options. 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 Basingstoke and Deane Borough 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 Basingstoke and Deane projects come up most often:
Extension drawings for Ashmansworth's conservation area designated in 1989 — footprint-checked, daylight-tested and drawn to Basingstoke and Deane Borough Council's guidance.
Extension drawings for Basingstoke Canal's conservation area designated in 1977 — footprint-checked, daylight-tested and drawn to Basingstoke and Deane Borough Council's guidance.
Extension drawings for Bradley's conservation area designated in 1992 — footprint-checked, daylight-tested and drawn to Basingstoke and Deane Borough Council's guidance.
Extension drawings for Bramley and Bramley Green's conservation area designated in 1983 — footprint-checked, daylight-tested and drawn to Basingstoke and Deane Borough Council's guidance.
Extension drawings for Brown and Chilton Candover's conservation area designated in 1981 — footprint-checked, daylight-tested and drawn to Basingstoke and Deane Borough Council's guidance.
Extension drawings for Church Oakley's conservation area designated in 1976 — footprint-checked, daylight-tested and drawn to Basingstoke and Deane Borough Council's guidance.
The right extension in Basingstoke and Deane 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 Basingstoke and Deane Borough 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 Ashmansworth and Basingstoke Canal and Article 4 directions can remove permitted-development rights.
A fixed process built around how Basingstoke and Deane Borough Council validates and decides householder extension applications — most drawings are submission-ready within seven days of survey.
Tell us your Basingstoke and Deane 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 Basingstoke and Deane Borough 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 Basingstoke and Deane Borough 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 Basingstoke and Deane Borough 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 Basingstoke and Deane you will need to apply to Basingstoke and Deane Borough 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 Ashmansworth and Basingstoke Canal.
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 Basingstoke and Deane Borough Council and a neighbour-consultation period, and it does not apply on designated land such as Basingstoke and Deane'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 Basingstoke and Deane Borough 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 Basingstoke and Deane 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. Basingstoke and Deane Borough 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 Basingstoke and Deane Borough Council's building control or an approved inspector can sign the work off.
Every house and brief is different, so we price each Basingstoke and Deane extension individually and send a fixed, no-obligation quote back within one working day. It covers the full drawing pack with free revisions until Basingstoke and Deane Borough Council approves, and we tell you upfront whether your extension qualifies as permitted development. Call 020 7864 7245 to get started.
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