Side-return infill drawings for Odiham terraces — the glazed extension that fills the redundant side alley and opens up the kitchen, drawn to Hart District Council's guidance, delivered in days and revised free until your decision, with a free approval-odds check first.
Hart District Council granted 86% of the householder planning decisions it made in its latest published year — 1 point below the 87% England-wide householder average. Odiham contains Basingstoke Canal 1, Basingstoke Canal2, Basingstoke Canal3 conservation areas (Basingstoke Canal 1 designated 2009), 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.
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. Odiham carries at least one Article 4 direction, and conservation areas including Basingstoke Canal 1, Basingstoke Canal2 and Basingstoke Canal3 remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Odiham is determined against an 8-week statutory target.
Basingstoke Canal 1 (conservation area designated in 2009), Basingstoke Canal2 (conservation area designated in 2009), Basingstoke Canal3 (conservation area designated in 2009), Crondall (conservation area designated in 2024), Dogmersfield (conservation area designated in 2012), Greywell (conservation area designated in 2009), Greywell (conservation area designated in 2009), Long Sutton (conservation area designated in 1999), North Warnborough (conservation area designated in 2022), Odiham (conservation area designated in 2022), South Warnborough (conservation area designated in 1999), Well (conservation area designated in 2001), Greywell (civil parish within Odiham), Long Sutton (civil parish within Odiham), South Warnborough (civil parish within Odiham), Crondall (civil parish within Odiham) and Dogmersfield (civil parish within Odiham) — these are the Odiham pockets our drawings cover most. Heritage designations here include Basingstoke Canal 1, Basingstoke Canal2, Basingstoke Canal3, Crondall, Dogmersfield, Greywell, Greywell, Long Sutton, North Warnborough, Odiham, South Warnborough and Well. Hart District Council weighs each proposal against Hart District Council's development plan and the design policies it applies to householder applications, where the 3,260 homes here are 20% pre-1900, 12% 1965-1972, 10% 1945-1954, which is what sets the realistic roof and rear-projection options. On roofs the borough is steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building and shallow-pitched roofs and integral garages typical of that period's building, over Victorian and earlier houses (20% of 3,260 homes), late-1960s and early-1970s houses (12%) and early postwar houses (10%).
Odiham's designated heritage is specific, and it is the first thing we check against your address: Basingstoke Canal 1 (conservation area designated in 2009), Basingstoke Canal2 (conservation area designated in 2009), Basingstoke Canal3 (conservation area designated in 2009), Crondall (conservation area designated in 2024), Dogmersfield (conservation area designated in 2012), Greywell (conservation area designated in 2009), Greywell (conservation area designated in 2009), Long Sutton (conservation area designated in 1999), North Warnborough (conservation area designated in 2022), Odiham (conservation area designated in 2022), South Warnborough (conservation area designated in 1999) and Well (conservation area designated in 2001). Inside those boundaries permitted development is curtailed and Hart District 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, Odiham takes in Greywell, Long Sutton, South Warnborough, Crondall and Dogmersfield. Hart District Council has 47 recorded Article 4 directions — check the address before assuming PD applies in Odiham.
On stock, Odiham is Victorian and earlier houses (20% of 3,260 homes), late-1960s and early-1970s houses (12%) and early postwar houses (10%) — which is why steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building and shallow-pitched roofs and integral garages typical of that period's building govern what a loft or rear projection can realistically be. Hart District Council decided 445 householder applications in the latest published year and granted 86%, with 71% issued inside the eight-week target. Those are the numbers our drawings are prepared against.
The full build-period split for Odiham runs pre-1900 20% (640 homes), 1900-1918 1% (40 homes), 1919-1929 3% (100 homes), 1930-1939 8% (250 homes), 1945-1954 10% (320 homes), 1955-1964 7% (220 homes), 1965-1972 12% (400 homes), 1973-1982 8% (270 homes), 1983-1992 9% (290 homes), 1993-1999 4% (140 homes) and 2000-2008 6% (180 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.
Hart District Council also decides for Blackwater and Hawley, Fleet Central, Fleet East, Fleet West, Hartley Wintney and Yateley East, so a decision in Odiham 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 Bramshill, Broad Oak Odiham Hampshire., Church Farm (Eversley) and Cricket Hill Yateley (Extension). 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 Odiham and Hart District Council. These are the numbers that decide what is realistic on your street, so we work from them rather than from national averages.
| Measure | Odiham |
|---|---|
| Dwellings recorded | 3,260 |
| Built pre-1900 | 640 (20%) |
| Built 1900-1918 | 40 (1%) |
| Built 1919-1929 | 100 (3%) |
| Built 1930-1939 | 250 (8%) |
| Built 1945-1954 | 320 (10%) |
| Built 1955-1964 | 220 (7%) |
| Built 1965-1972 | 400 (12%) |
| Built 1973-1982 | 270 (8%) |
| Built 1983-1992 | 290 (9%) |
| Built 1993-1999 | 140 (4%) |
| Built 2000-2008 | 180 (6%) |
| Built before 1919 | 21% |
| Built 1919–1939 | 11% |
| Built 1945–2008 | 56% |
| Conservation areas in Odiham | 12 (Basingstoke Canal 1, Basingstoke Canal2…) |
| Conservation areas district-wide | 39 |
| Article 4 directions recorded | 47 |
| Householder applications decided | 445 |
| Householder applications granted | 86% |
| Decided within 8 weeks | 71% |
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 Hart District Council's own, from MHCLG live table PS2 for the year to 31 March 2026.
The side return is the classic terrace fix, and Odiham has the stock for it — the borough is built largely from Victorian and earlier houses (20% of 3,260 homes), late-1960s and early-1970s houses (12%) and early postwar houses (10%), and the Victorian and Edwardian versions almost all have an L-shaped back addition with a wasted alley beside it. Fill that alley and the dark galley kitchen becomes a bright, square room the full width of the house. Hart District Council judges the infill against Hart District Council's development plan and the design policies it applies to householder applications, and because it runs along the party boundary, the neighbour relationship is read before the design.
That boundary is where the drawings earn their keep. We set the infill wall on or up to the line, keep the roof — usually a glazed lantern or a shallow pitch tying into the existing back-addition slope — below the neighbour's first-floor windows, and detail the rainwater and party-wall junction so the build is watertight and the Party Wall Act is satisfied. Odiham contains Basingstoke Canal 1, Basingstoke Canal2, Basingstoke Canal3 conservation areas (Basingstoke Canal 1 designated 2009), so materials, fenestration and roof form are assessed against the appraisal, so we resolve it on the section rather than leave it to the case officer.
Many of Odiham's terraces sit in conservation areas — Basingstoke Canal 1, Basingstoke Canal2, Basingstoke Canal3, Crondall, Dogmersfield, Greywell, Greywell, Long Sutton, North Warnborough, Odiham, South Warnborough and Well among them — where a side extension is no longer permitted development. Hart District Council has 47 recorded Article 4 directions — check the address before assuming PD applies in Odiham. We confirm the designation before a line is drawn.
Some single-storey side returns in Odiham are permitted development, but the width and boundary make an application more likely than for a straight rear extension. You will normally need to apply to Hart District Council if any of these apply:
We draw the infill wall on the boundary, the glazed roof below the neighbour's windows and the party-wall junction on the page — the details Hart District Council's officers and your neighbour both check — and submit a validation-complete pack, whether that is a lawful development certificate or a full householder application.
Below is Hart District Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Hart District Council granted 86% of its householder applications in the year to 31 March 2026, and Basingstoke Canal 1 shapes what is approved here. Side returns hinge on width, roof glazing and the party boundary, so a pack that resolves those details upfront is decided faster and refused less often than a DIY submission.
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 1, Basingstoke Canal2 and Basingstoke Canal3, the approved side return is a single-storey infill roofed with a glazed lantern or roof light to pull daylight deep into the plan, its flank wall built on the boundary and finished to match the host brick. On the borough's victorian and earlier houses (20% of 3,260 homes), this is frequently the single biggest gain in usable ground-floor space, and where it stays within the width and height limits it can proceed under permitted development or a lawful development certificate.
The 3,260 homes here are 20% pre-1900, 12% 1965-1972, 10% 1945-1954, which is what sets the realistic roof and rear-projection options. We keep the glazed roof below the neighbour's cill line, set the gutter and the party-wall flashing so water and maintenance are designed in, and — where owners want the full open-plan room — pair the infill with a rear extension as a single wraparound application. That way Hart District Council sees one coherent scheme rather than two overlapping ones.
We draw side-return infills on every terraced street in the borough. A few of the neighbourhoods where Odiham side returns come up most often:
Side return extension drawings for Basingstoke Canal 1's conservation area designated in 2009 — width-checked, party-wall detailed and drawn to Hart District Council's guidance.
Side return extension drawings for Basingstoke Canal2's conservation area designated in 2009 — width-checked, party-wall detailed and drawn to Hart District Council's guidance.
Side return extension drawings for Basingstoke Canal3's conservation area designated in 2009 — width-checked, party-wall detailed and drawn to Hart District Council's guidance.
Side return extension drawings for Crondall's conservation area designated in 2024 — width-checked, party-wall detailed and drawn to Hart District Council's guidance.
Side return extension drawings for Dogmersfield's conservation area designated in 2012 — width-checked, party-wall detailed and drawn to Hart District Council's guidance.
Side return extension drawings for Greywell's conservation area designated in 2009 — width-checked, party-wall detailed and drawn to Hart District Council's guidance.
Whether a side return in Odiham needs permission comes down to width, storeys and whether the street is designated. This is how the cases compare.
| Side return type | Permitted development? | What it gains | What Hart District Council checks |
|---|---|---|---|
| Single-storey infill, within limits | Often yes, if under half the house width | Full-width kitchen-diner | Width, 4m height, roof glazing |
| Single-storey, over half width | No — full application | Wider room, more light | Boundary treatment, neighbour amenity |
| Two-storey side return | No — full application | Room above as well as below | Bulk, overlooking, terrace rhythm |
| Wraparound (side + rear) | No — full application | L-shaped open-plan ground floor | Combined footprint, garden retained |
In conservation areas such as Basingstoke Canal 1 and Basingstoke Canal2, side extensions are not permitted development and always need a full application.
A fixed process built around how Hart District Council validates and decides side-return applications — most drawings are submission-ready within seven days of survey.
Send us your Odiham postcode and terrace type. We confirm your conservation and Article 4 status, whether the infill stays within the side-extension width limit, and score your odds against live Hart District Council decisions.
We measure the side alley, the back-addition wall, floor and eaves levels and the neighbour's window heights — the numbers the width limit, roof pitch and party-wall detailing depend on.
Chartered designers develop the infill and its glazed roof to your brief, drawn inside the permitted-development limits or to Hart District Council's extension guidance, with the boundary and party-wall junction detailed.
We submit the certificate or application, manage validation and case-officer queries, and revise the drawings free until Hart District Council issues its decision.
Sometimes not. A single-storey side-return infill can be permitted development if it is no wider than half the original house, no higher than 4 metres, and the property is not on designated land. In Odiham you will need a full application to Hart District Council for anything wider or taller, for a two-storey side return, and for any side extension in a conservation area such as Basingstoke Canal 1 and Basingstoke Canal2, where those rights are removed.
It is an infill that fills the narrow open alley running alongside the rear back-addition of a Victorian or Edwardian terrace — the strip of ground that is usually too small to use. Building over it squares off the ground floor, so a cramped galley kitchen becomes a full-width room. Odiham's period terraces are ideally suited to it, which is why the side return is one of the borough's most common extensions. Hart District Council is the decision-maker.
Almost always. A side return is built on or up to the boundary with your neighbour, so the Party Wall etc. Act applies and you must serve notice before work starts — this is entirely separate from Hart District Council's planning decision. We detail the party-wall junction on the drawings and flag the notice early so a surveyor can be appointed without delaying the build. This applies to your Odiham address specifically.
Yes, and it is common — the combined L-shape is a wraparound extension. Once the side infill joins a rear projection beyond the permitted-development depth, the whole thing needs a full householder application to Hart District Council rather than qualifying as permitted development. We draw it as one coherent scheme so the council assesses a single footprint, which reads more clearly than two overlapping proposals. This applies to your Odiham address specifically.
A householder planning application in Odiham runs to a statutory eight-week target, and a lawful development certificate to eight weeks as well, though an incomplete pack can stall at validation. Because a side return involves the boundary and roof glazing, a complete, well-detailed submission matters — we prepare it validation-complete and manage officer queries to keep the decision on track. Hart District Council is the decision-maker.
We price each Odiham side return individually, because alley width and roof form vary house to house, and send a fixed, no-obligation quote within one working day. It covers the full drawing pack with free revisions until Hart District Council approves, and we confirm at the outset whether your infill is permitted development or needs an application. Call 020 7864 7245 to start.
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