Annexe and granny-flat drawings for Woodston homes — designed to stay ancillary to the main house rather than become a separate dwelling, drawn to Peterborough City Council's policies, delivered in days and revised free until your decision.
Peterborough City Council granted 88% of the householder planning decisions it made in its latest published year — 1 point above the 87% England-wide householder average. The 2024 small-HMO Article 4 direction draws many house conversions in Woodston and Fletton into the full planning system, 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.
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. Woodston carries at least one Article 4 direction, and conservation areas including Park, Queens Road and City Centre remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Woodston is determined against an 8-week statutory target.
Woodston (Victorian and Edwardian terraces south of the river, once serving the brickworks), Old Fletton (railway and brick-industry terraces adjoining Woodston), New Fletton (dense Victorian terraced streets near the station), Stanground North (interwar and postwar housing east along the river), Riverside (newer flats and infill along the Nene embankment) and London Road (mixed terraces and commercial frontages on the southern approach) — these are the Woodston pockets our drawings cover most. Heritage designations here include Park, Queens Road and City Centre. Peterborough City Council weighs each proposal against the Peterborough Local Plan (2019), where rear and side-return extensions are tested against the tight party-wall spacing of the brick-era terraces. Converted flats and riverside apartments are common in and around Woodston, and flats carry no householder permitted-development rights.. On roofs the borough is pitched clay-tile and slate roofs on the terraces and hipped roofs on the interwar semis, over Victorian and Edwardian brick terraces built for the brickworks, interwar semis on the southern streets and riverside and infill flats near the Nene.
Councils do not decide annexes on square metres. They decide whether, once built, the accommodation forms part of one planning unit with the main house or a second one beside it. Peterborough City Council looks at whether the garden is shared or divided, whether the annexe has its own street access and address, whether the occupier could live there entirely independently, and whether the two households would function as one. That is the whole case, and it is made or lost on the layout.
Woodston is largely Victorian and Edwardian brick terraces built for the brickworks, interwar semis on the southern streets and riverside and infill flats near the Nene, which shapes the realistic options: converting part of the existing house, extending it, or building a detached unit in the garden. A detached annexe can sometimes sit under Class E as an outbuilding incidental to the enjoyment of the dwellinghouse — but sleeping accommodation is generally not "incidental", so a garden annexe with a bedroom usually needs its own permission rather than relying on outbuilding rights.
In Woodston's conservation areas — including Park and Queens Road — a garden building is also judged on its effect on the character of the area, which limits height and footprint before the use question is reached. Woodston sits inside the council's 2024 small-HMO Article 4 direction covering Fletton, Woodston, Hampton and Park, which removes the permitted-development right to convert a house to a small HMO of three to six unrelated adults without planning permission.
An annexe almost always needs an application to Peterborough City Council. Expect one where any of these apply:
We plan the annexe so its relationship to the main house is visible on the page — shared garden, connected access, a layout that reads as one household — and set out the case Peterborough City Council has to test, rather than leaving the officer to assume the worst.
Below is Peterborough City Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Peterborough approves most householder applications, but in Woodston the Fletton/Woodston HMO Article 4 and dense terrace spacing are the most frequent sticking points. Annexe applications are decided on use as much as design, so the supporting case matters as much as the elevations.
Source: MHCLG planning application statistics (householder decisions, England, 1 April 2025 - 31 March 2026). Compare every borough on our London approval-rate league table.
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Across Woodston, Old Fletton and New Fletton, the annexes that succeed keep one shared garden, take access past the main house rather than from the street, and are modest against the host building — single storey where the plot is overlooked, and set back from boundaries. On victorian and edwardian brick terraces built for the brickworks, converting an integral garage or a rear ground floor is often approved more readily than a detached garden unit, because the ancillary relationship is self-evident.
The 2024 small-HMO Article 4 direction draws many house conversions in Woodston and Fletton into the full planning system. Where Peterborough City Council grants permission, it commonly attaches a condition tying occupation of the annexe to the main dwelling. That condition is not a problem to be avoided — it is usually the mechanism that makes approval possible, and we draft the application on that basis rather than pretending the annexe is something it is not.
We draw annexes across Woodston. A few of the areas where multigenerational schemes come up most often:
Annexe and granny-flat drawings for Woodston — Victorian and Edwardian terraces south of the river, once serving the brickworks — planned to stay ancillary and drawn to Peterborough City Council's policies.
Annexe and granny-flat drawings for Old Fletton — railway and brick-industry terraces adjoining Woodston — planned to stay ancillary and drawn to Peterborough City Council's policies.
Annexe and granny-flat drawings for New Fletton — dense Victorian terraced streets near the station — planned to stay ancillary and drawn to Peterborough City Council's policies.
Annexe and granny-flat drawings for Stanground North — interwar and postwar housing east along the river — planned to stay ancillary and drawn to Peterborough City Council's policies.
Annexe and granny-flat drawings for Riverside — newer flats and infill along the Nene embankment — planned to stay ancillary and drawn to Peterborough City Council's policies.
Annexe and granny-flat drawings for London Road — mixed terraces and commercial frontages on the southern approach — planned to stay ancillary and drawn to Peterborough City Council's policies.
Three similar buildings, three different consents. This is what separates them.
| What you build | Planning status | Key test | What Peterborough City Council checks |
|---|---|---|---|
| Garden room, no sleeping space | Often Class E permitted development | Incidental to the house | Height, footprint, boundary position |
| Annexe used by the household | Full application, usually with a tie condition | Ancillary use | Shared garden and access, layout |
| Self-contained unit, own access | New dwelling — full application | Separate planning unit | Policy on new homes, amenity, parking |
| Converted garage or ground floor | Often permitted, use still assessed | Whether use changes | Independence of the accommodation |
| Annexe on designated land | Full application | Designation | Character and appearance |
The ancillary/separate-dwelling distinction comes from section 55 of the Town and Country Planning Act 1990; outbuilding limits from the GPDO 2015, Schedule 2, Part 1, Class E.
A fixed process built around how Peterborough City Council tests the use question as well as the design.
Tell us who the annexe is for and where it would sit on the plot. We confirm designation status and tell you honestly whether the scheme reads as ancillary or as a separate dwelling in Woodston.
We measure the plot, the existing house and the access route, so the shared-garden and shared-access case can be drawn rather than asserted.
Chartered designers develop the annexe to your brief, with the layout, access and garden relationship arranged to support the ancillary case under Peterborough City Council's policies.
We submit the application with a supporting statement on use, manage validation and case-officer queries, and revise free until Peterborough City Council decides.
Almost always. Sleeping accommodation is generally not "incidental" to the enjoyment of a house, so it falls outside the outbuilding permitted-development right, and any annexe that could function independently raises a change-of-use question under section 55. In Woodston we prepare a full application to Peterborough City Council and make the ancillary case explicitly rather than hoping it is not asked.
A shared garden rather than a divided one, access through the main property rather than a separate street entrance, occupation by a member of the same household, and a physical and functional relationship with the main house. Peterborough City Council weighs those together — no single feature decides it, but a separate front door and a fenced-off garden together usually settle it against you. This applies to your Woodston address specifically.
Yes, subject to permission. A detached garden annexe is assessed on its scale against the plot, its effect on neighbours and the character of the area, and then on the use question. Keeping it single storey, set in from boundaries and served off the shared garden gives it the best prospect in Woodston, particularly near designated areas such as Park and Queens Road. Peterborough City Council is the decision-maker.
Commonly, yes — a condition tying occupation of the annexe to the main dwelling, so it cannot be sold or let separately. That is normally what makes approval possible, because it removes the concern that a new independent home is being created without going through housing policy. The condition runs with the land, so it matters at resale, and we explain the implications before you commit. This applies to your Woodston address specifically. Peterborough City Council is the decision-maker.
Yes. A new annexe is new habitable accommodation, so structure, fire escape, insulation and ventilation all apply, and a detached annexe close to a boundary raises fire-spread requirements as well. Planning and building control are separate consents with separate submissions — we prepare both so the approved design is the one that can actually be built. This applies to your Woodston address specifically. Peterborough City Council is the decision-maker.
A householder application runs to an eight-week statutory target; where the council treats the annexe as creating a new unit it becomes a minor application with a thirteen-week target instead. Which route applies depends on how the use is characterised, which is precisely why the ancillary case is worth making properly at the outset. This applies to your Woodston address specifically. Peterborough City Council is the decision-maker.
We quote each Woodston annexe individually, because plot, access and whether you are converting or building new all change the work, and send a fixed, no-obligation quote within one working day. It covers the full drawing pack and supporting statement, with free revisions until Peterborough City Council approves. Call 020 7864 7245 to start.
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