Two-storey extension drawings for Basing & Upton Grey homes — bedroom above, living space below, drawn against the 3-metre projection and 7-metre boundary rules and to Basingstoke and Deane Borough Council's design guidance, delivered in days and revised free until your decision.
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. Basing & Upton Grey contains Basingstoke Canal, Cliddesden, Mapledurwell conservation areas (Basingstoke Canal designated 1977), so materials, fenestration and roof form are assessed against the appraisal, which is where a policy-literate drawing pack earns its keep. Its dominant 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. Basing & Upton Grey carries at least one Article 4 direction, and conservation areas including Basingstoke Canal, Cliddesden and Mapledurwell remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Basing & Upton Grey is determined against an 8-week statutory target.
Basingstoke Canal (conservation area designated in 1977), Cliddesden (conservation area designated in 1981), Mapledurwell (conservation area designated in 1981), Newnham (conservation area designated in 1981), Old Basing (conservation area designated in 1973), Tunworth (conservation area designated in 1981), Up Nately (conservation area designated in 1981), Upton Grey (conservation area designated in 1973), Weston Corbett and Weston Patrick (conservation area designated in 1980), Cliddesden (civil parish within Basing & Upton Grey), Herriard (civil parish within Basing & Upton Grey), Mapledurwell and Up Nately (civil parish within Basing & Upton Grey), Newnham (civil parish within Basing & Upton Grey), Old Basing and Lychpit (civil parish within Basing & Upton Grey) and Tunworth (civil parish within Basing & Upton Grey) — these are the Basing & Upton Grey pockets our drawings cover most. Heritage designations here include Basingstoke Canal, Cliddesden, Mapledurwell, Newnham, Old Basing, Tunworth, Up Nately, Upton Grey and Weston Corbett and Weston Patrick. 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 4,410 homes here are 19% 1973-1982, 18% 1983-1992, 10% 1955-1964, which is what sets the realistic roof and rear-projection options. On roofs the borough is shallow trussed roofs typical of 1970s building and trussed-rafter roofs typical of 1980s building, over 1970s and early-1980s houses (19% of 4,410 homes), 1980s estate houses (18%) and late-1950s and early-1960s houses (10%).
Before anything is drawn we check your address against the designations that apply in Basing & Upton Grey: Basingstoke Canal (conservation area designated in 1977), Cliddesden (conservation area designated in 1981), Mapledurwell (conservation area designated in 1981), Newnham (conservation area designated in 1981), Old Basing (conservation area designated in 1973), Tunworth (conservation area designated in 1981), Up Nately (conservation area designated in 1981), Upton Grey (conservation area designated in 1973) and Weston Corbett and Weston Patrick (conservation area designated in 1980). 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, Basing & Upton Grey takes in Cliddesden, Herriard, Mapledurwell and Up Nately, Newnham, Old Basing and Lychpit and Tunworth. Basingstoke and Deane Borough Council has 3 recorded Article 4 directions — check the address before assuming PD applies in Basing & Upton Grey.
On stock, Basing & Upton Grey is 1970s and early-1980s houses (19% of 4,410 homes), 1980s estate houses (18%) and late-1950s and early-1960s houses (10%) — which is why shallow trussed roofs typical of 1970s building and trussed-rafter roofs typical of 1980s 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. That decision record, not a national figure, is what we design to.
The full build-period split for Basing & Upton Grey runs pre-1900 9% (380 homes), 1900-1918 2% (100 homes), 1919-1929 2% (90 homes), 1930-1939 5% (240 homes), 1945-1954 5% (210 homes), 1955-1964 10% (460 homes), 1965-1972 7% (310 homes), 1973-1982 19% (840 homes), 1983-1992 18% (790 homes), 1993-1999 9% (380 homes) and 2000-2008 7% (310 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 Bramley, Evingar, Oakley & The Candovers, Tadley & Pamber and Winklebury & Manydown, so a decision in Basing & Upton Grey 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 Basing & Upton Grey 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 | Basing & Upton Grey |
|---|---|
| Dwellings recorded | 4,410 |
| Built pre-1900 | 380 (9%) |
| Built 1900-1918 | 100 (2%) |
| Built 1919-1929 | 90 (2%) |
| Built 1930-1939 | 240 (5%) |
| Built 1945-1954 | 210 (5%) |
| Built 1955-1964 | 460 (10%) |
| Built 1965-1972 | 310 (7%) |
| Built 1973-1982 | 840 (19%) |
| Built 1983-1992 | 790 (18%) |
| Built 1993-1999 | 380 (9%) |
| Built 2000-2008 | 310 (7%) |
| Built before 1919 | 11% |
| Built 1919–1939 | 7% |
| Built 1945–2008 | 75% |
| Conservation areas in Basing & Upton Grey | 9 (Basingstoke Canal, Cliddesden…) |
| 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.
Adding at first floor changes the question the case officer asks. A single-storey extension is judged mostly on daylight and garden loss; a two-storey extension is judged on overlooking, bulk against the neighbouring roofline, and whether it reads as part of the house or bolted onto it. Basing & Upton Grey is largely 1970s and early-1980s houses (19% of 4,410 homes), 1980s estate houses (18%) and late-1950s and early-1960s houses (10%), and shallow trussed roofs typical of 1970s building and trussed-rafter roofs typical of 1980s building set what a matching roof actually means here.
The permitted-development route exists but is narrow: 3 metres of rear projection, a 7-metre stand-off from the rear boundary, eaves and ridge no higher than the original, and side-facing upper windows obscure-glazed and non-opening below 1.7 metres above floor level. Most two-storey schemes fail one of those, usually the 7-metre boundary rule on a shorter garden, and go in as a full application instead. We establish which route applies before designing, because it changes the drawing set.
Basing & Upton Grey contains Basingstoke Canal, Cliddesden, Mapledurwell conservation areas (Basingstoke Canal designated 1977), so materials, fenestration and roof form are assessed against the appraisal. Basingstoke and Deane Borough Council has 3 recorded Article 4 directions — check the address before assuming PD applies in Basing & Upton Grey.
Some two-storey rear extensions are permitted development. You will need a full application to Basingstoke and Deane Borough Council if any of these apply:
We set the projection and boundary distance on the site plan, prove the roof-pitch match on the elevations, and specify obscure glazing on the side windows — the three things Basingstoke and Deane Borough Council checks first — then submit a validation-complete pack.
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 its householder applications in the year to 31 March 2026, and Basingstoke Canal shapes what is approved here. Two-storey schemes attract more neighbour comment than any other householder work, so the overlooking and daylight case has to be made on the drawings.
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 Basingstoke Canal, Cliddesden and Mapledurwell, the schemes that succeed set the first floor back from the ground floor, keep the ridge below the original, and treat the flank wall as blank or obscure-glazed. On 1970s and early-1980s houses (19% of 4,410 homes), matching the eaves line matters more than matching the brick: an extension that carries the existing eaves through reads as original even in a different material.
The 4,410 homes here are 19% 1973-1982, 18% 1983-1992, 10% 1955-1964, which is what sets the realistic roof and rear-projection options. We draw the 45-degree daylight test from the neighbour's nearest habitable window, show the window positions in section, and set out the steel and foundation implications early — a two-storey extension changes the load path, so the structural design and the planning design have to be developed together rather than in sequence.
We draw two-storey extensions across Basing & Upton Grey. A few of the areas where they come up most often:
Two storey extension drawings for Basingstoke Canal — conservation area designated in 1977 — dimensioned against the 3m and 7m limits and drawn to Basingstoke and Deane Borough Council's guidance.
Two storey extension drawings for Cliddesden — conservation area designated in 1981 — dimensioned against the 3m and 7m limits and drawn to Basingstoke and Deane Borough Council's guidance.
Two storey extension drawings for Mapledurwell — conservation area designated in 1981 — dimensioned against the 3m and 7m limits and drawn to Basingstoke and Deane Borough Council's guidance.
Two storey extension drawings for Newnham — conservation area designated in 1981 — dimensioned against the 3m and 7m limits and drawn to Basingstoke and Deane Borough Council's guidance.
Two storey extension drawings for Old Basing — conservation area designated in 1973 — dimensioned against the 3m and 7m limits and drawn to Basingstoke and Deane Borough Council's guidance.
Two storey extension drawings for Tunworth — conservation area designated in 1981 — dimensioned against the 3m and 7m limits and drawn to Basingstoke and Deane Borough Council's guidance.
The first-floor limits are tighter than the ground-floor ones. This is how the common cases compare.
| Scheme | Permitted development? | Deciding limit | What Basingstoke and Deane Borough Council checks |
|---|---|---|---|
| Two-storey rear, 3m projection, 7m+ to boundary | Often yes | 3m projection / 7m boundary | Roof match, side-window glazing |
| Two-storey rear, under 7m to boundary | No — full application | Rear-boundary distance | Overlooking, daylight, garden loss |
| Two-storey side extension | No — full application | Side elevation | Gap to boundary, street rhythm |
| Two-storey wraparound | No — full application | Combined footprint | Bulk, massing, neighbour amenity |
| Any two-storey on designated land | No — full application | Designation | Character and appearance |
Limits from the GPDO 2015, Schedule 2, Part 1, Class A — two-storey rear extension conditions.
A fixed process built around how Basingstoke and Deane Borough Council validates and decides two-storey applications.
Send us your Basing & Upton Grey postcode and garden depth. We measure the 7-metre boundary rule against your plot, confirm designation status, and score your odds against live Basingstoke and Deane Borough Council decisions.
We measure the original rear wall, eaves and ridge heights, garden depth and every neighbouring window that faces the site — the inputs the daylight and overlooking case is built from.
Chartered designers develop the two-storey addition to your brief with the roof and eaves resolved, and we coordinate the load path so the structural scheme and the planning scheme are the same building.
We submit the application, manage validation and case-officer queries, and revise the drawings free until Basingstoke and Deane Borough Council issues its decision.
Often, but not always. A two-storey rear extension can be permitted development if it projects no more than 3 metres, sits at least 7 metres from the rear boundary, does not exceed the existing eaves and ridge, and has obscure-glazed non-opening side windows below 1.7 metres. In Basing & Upton Grey, the 7-metre rule is what most commonly forces a full application to Basingstoke and Deane Borough Council.
No part of a permitted-development two-storey rear extension may come within 7 metres of the boundary opposite the rear wall of the house. It exists to protect the neighbour behind you from being overlooked at first floor. On shorter Basing & Upton Grey gardens this is decisive, and we measure it on survey before any design work rather than discovering it at validation. Basingstoke and Deane Borough Council is the decision-maker.
Not under permitted development — two-storey side extensions always need a full application to Basingstoke and Deane Borough Council. They are assessed on the gap to the boundary, whether the street's rhythm of spaces between houses survives, and whether the extension is subordinate to the original. Setting the first floor back from the front building line and down from the ridge is what usually makes the difference. This applies to your Basing & Upton Grey address specifically.
Overlooking is the most common objection, and it is answerable on the drawings. We position habitable-room windows away from neighbouring gardens, obscure-glaze and fix shut anything on the flank below 1.7 metres, and show the sight lines in section. Where the geometry is tight, a rooflight or a high-level window gives the same daylight without the mutual overlooking that draws objections. This applies to your Basing & Upton Grey address specifically. Basingstoke and Deane Borough Council is the decision-maker.
Almost certainly. Excavating within 3 metres of a neighbouring structure and building on or up to the boundary both trigger the Party Wall etc. Act 1996, and a two-storey extension usually does both. It is entirely separate from Basingstoke and Deane Borough Council's planning decision, so we flag the notice period early and detail the junction on the drawings. This applies to your Basing & Upton Grey address specifically.
Yes. Adding a floor changes the load path from roof to foundation, so beams, padstones and foundation depths all need designing and calculating for building control. Planning and building regulations are separate consents, and the structural set is what building control assesses — we prepare both so the approved scheme is the buildable one. This applies to your Basing & Upton Grey address specifically. Basingstoke and Deane Borough Council is the decision-maker.
We quote each Basing & Upton Grey two-storey extension individually, because plot depth, roof form and structural complexity vary house to house, and send a fixed, no-obligation quote within one working day. It covers the drawing pack with free revisions until Basingstoke and Deane Borough Council approves. Call 020 7864 7245 to start.
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.