Annexe and granny-flat drawings for Spring Bank homes — designed to stay ancillary to the main house rather than become a separate dwelling, drawn to Hull City Council's policies, delivered in days and revised free until your decision.
Hull City Council granted 91% of the householder planning decisions it made in its latest published year — 4 points above the 87% England-wide householder average. The district lies within the citywide high tidal-flood-risk zone, so new floor space is expected to incorporate flood-resilient design, which is where a policy-literate drawing pack earns its keep. Its dominant Victorian (1837–1901), Edwardian (1901–1910) and interwar (1918–1939) 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. In conservation areas such as Spring Bank, Spring Bank West and Coltman Street those rights are removed, so we confirm your exact address before a line is drawn. A validated householder application in Spring Bank is determined against an 8-week statutory target.
Spring Bank (long radial street of Victorian terraces and shopfronts in a conservation area), Spring Bank West (later terraced housing extending toward the western suburbs), Coltman Street (grand villa terraces in one of Hull's earliest conservation areas), Derringham (interwar suburban housing west of Spring Bank West), Pearson Avenue (compact terraced streets close to the western cemetery) and Boulevard (tree-lined Victorian terraces on the fringe toward Hessle Road) — these are the Spring Bank pockets our drawings cover most. Heritage designations here include Spring Bank, Spring Bank West and Coltman Street. Hull City Council weighs each proposal against the Hull Local Plan 2016–2032, where conversions to flats and shared houses are assessed against amenity, refuse and parking standards even outside the Article 4 area. Numerous Spring Bank terraces have been divided into flats, and those units hold no householder permitted-development rights.. On roofs the borough is pitched slate roofs on the terraces and double-pitched roofs with parapet fronts on the villas, over Victorian and Edwardian terraces off Spring Bank and Spring Bank West, grander villa terraces around Coltman Street and converted terraced flats.
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. Hull 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.
Spring Bank is largely Victorian and Edwardian terraces off Spring Bank and Spring Bank West, grander villa terraces around Coltman Street and converted terraced flats, 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 Spring Bank's conservation areas — including Spring Bank and Spring Bank West — 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. Spring Bank falls outside the boundary of Hull's HMO Article 4 direction, which is centred on the Avenues and Newland, but its conservation areas still remove some permitted-development rights and shape what alterations to the terraces are acceptable.
An annexe almost always needs an application to Hull 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 Hull City Council has to test, rather than leaving the officer to assume the worst.
Below is Hull City Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Against Hull's overall approval rate of roughly 91%, Spring Bank schemes turn most on conservation-area character and the quality of any conversion rather than on use controls. 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 Spring Bank, Spring Bank West and Coltman Street, 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 terraces off spring bank and spring bank west, 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 district lies within the citywide high tidal-flood-risk zone, so new floor space is expected to incorporate flood-resilient design. Where Hull 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 Spring Bank. A few of the areas where multigenerational schemes come up most often:
Annexe and granny-flat drawings for Spring Bank — long radial street of Victorian terraces and shopfronts in a conservation area — planned to stay ancillary and drawn to Hull City Council's policies.
Annexe and granny-flat drawings for Spring Bank West — later terraced housing extending toward the western suburbs — planned to stay ancillary and drawn to Hull City Council's policies.
Annexe and granny-flat drawings for Coltman Street — grand villa terraces in one of Hull's earliest conservation areas — planned to stay ancillary and drawn to Hull City Council's policies.
Annexe and granny-flat drawings for Derringham — interwar suburban housing west of Spring Bank West — planned to stay ancillary and drawn to Hull City Council's policies.
Annexe and granny-flat drawings for Pearson Avenue — compact terraced streets close to the western cemetery — planned to stay ancillary and drawn to Hull City Council's policies.
Annexe and granny-flat drawings for Boulevard — tree-lined Victorian terraces on the fringe toward Hessle Road — planned to stay ancillary and drawn to Hull City Council's policies.
Three similar buildings, three different consents. This is what separates them.
| What you build | Planning status | Key test | What Hull 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 Hull 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 Spring Bank.
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 Hull City Council's policies.
We submit the application with a supporting statement on use, manage validation and case-officer queries, and revise free until Hull 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 Spring Bank we prepare a full application to Hull 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. Hull 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 Spring Bank 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 Spring Bank, particularly near designated areas such as Spring Bank and Spring Bank West. Hull 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 Spring Bank address specifically. Hull 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 Spring Bank address specifically. Hull 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 Spring Bank address specifically. Hull City Council is the decision-maker.
We quote each Spring Bank 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 Hull City Council approves. Call 020 7864 7245 to start.
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