Annexe and granny-flat drawings for Worthing homes — designed to stay ancillary to the main house rather than become a separate dwelling, drawn to Worthing Borough Council's policies, delivered in days and revised free until your decision.
Worthing Borough Council granted 94% of the householder planning decisions it made in its latest published year — 7 points above the 87% England-wide householder average. Worthing contains Chapel Road, Durrington, Goring conservation areas (Chapel Road designated 1997), 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), interwar (1918–1939) 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. Worthing carries at least one Article 4 direction, and conservation areas including Chapel Road, Durrington and Goring remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Worthing is determined against an 8-week statutory target.
Chapel Road (conservation area designated in 1997), Durrington (conservation area designated in 1977), Goring (conservation area designated in 1985), Goring Hall (conservation area designated in 1997), Heene (conservation area designated in 1985), Ivy Place (conservation area designated in 2000), Little High Street (conservation area designated in 1997), Marine Gardens (conservation area designated in 2024), Central (ward of Worthing), Goring (ward of Worthing), Heene (ward of Worthing), Marine (ward of Worthing) and Salvington (ward of Worthing) — these are the Worthing pockets our drawings cover most. Heritage designations here include Chapel Road, Durrington, Goring, Goring Hall, Heene, Ivy Place, Little High Street and Marine Gardens. Worthing Borough Council weighs each proposal against Worthing Borough Council's adopted local plan and its householder design guidance, where the 22,940 homes here are 17% 1930-1939, 15% 1955-1964, 14% pre-1900, which is what sets the realistic roof and rear-projection options. On roofs the borough is hipped roofs with shallow pitches typical of 1930s building and shallow gabled roofs typical of that period's building, over 1930s semi-detached and detached houses (17% of 22,940 homes), late-1950s and early-1960s houses (15%) and Victorian and earlier houses (14%).
Worthing's designated heritage is specific, and it is the first thing we check against your address: Chapel Road (conservation area designated in 1997), Durrington (conservation area designated in 1977), Goring (conservation area designated in 1985), Goring Hall (conservation area designated in 1997), Heene (conservation area designated in 1985), Ivy Place (conservation area designated in 2000), Little High Street (conservation area designated in 1997) and Marine Gardens (conservation area designated in 2024). Inside those boundaries permitted development is curtailed and Worthing 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, Worthing takes in Central, Goring, Heene, Marine and Salvington. Worthing Borough Council has 8 recorded Article 4 directions, removing permitted development for rear and side extensions and roof enlargements such as dormers — check the address before assuming PD applies in the district.
On stock, Worthing is 1930s semi-detached and detached houses (17% of 22,940 homes), late-1950s and early-1960s houses (15%) and Victorian and earlier houses (14%) — which is why hipped roofs with shallow pitches typical of 1930s building and shallow gabled roofs typical of that period's building govern what a loft or rear projection can realistically be. Worthing Borough Council decided 302 householder applications in the latest published year and granted 94%, with 53% issued inside the eight-week target. Those are the numbers our drawings are prepared against.
The full build-period split for Worthing 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.
Worthing Borough Council also decides for Central, Goring, Heene, Marine and Salvington, so a decision in Worthing 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 Ambrose Place, Church Road, Tarring, Cowper Road and Land West of The Plantation. 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 Worthing and Worthing 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 | Worthing |
|---|---|
| Dwellings recorded | 22,940 |
| 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 | 26% |
| Built 1919–1939 | 22% |
| Built 1945–2008 | 46% |
| Conservation areas in Worthing | 8 (Chapel Road, Durrington…) |
| Conservation areas district-wide | 26 |
| Article 4 directions recorded | 8 |
| Householder applications decided | 302 |
| Householder applications granted | 94% |
| Decided within 8 weeks | 53% |
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 Worthing Borough Council's own, from MHCLG live table PS2 for the year to 31 March 2026.
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. Worthing Borough 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.
Worthing is largely 1930s semi-detached and detached houses (17% of 22,940 homes), late-1950s and early-1960s houses (15%) and Victorian and earlier houses (14%), 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 Worthing's conservation areas — including Chapel Road and Durrington — 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. Worthing Borough Council has 8 recorded Article 4 directions, removing permitted development for rear and side extensions and roof enlargements such as dormers — check the address before assuming PD applies in the district.
An annexe almost always needs an application to Worthing Borough 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 Worthing Borough Council has to test, rather than leaving the officer to assume the worst.
Below is Worthing Borough Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Worthing Borough Council granted 94% of 302 householder decisions in the year to 31 March 2026, 53% of them inside eight weeks. 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 Chapel Road, Durrington and Goring, 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 1930s semi-detached and detached houses (17% of 22,940 homes), 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.
Worthing contains Chapel Road, Durrington, Goring conservation areas (Chapel Road designated 1997), so materials, fenestration and roof form are assessed against the appraisal. Where Worthing Borough 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 Worthing. A few of the areas where multigenerational schemes come up most often:
Annexe and granny-flat drawings for Chapel Road — conservation area designated in 1997 — planned to stay ancillary and drawn to Worthing Borough Council's policies.
Annexe and granny-flat drawings for Durrington — conservation area designated in 1977 — planned to stay ancillary and drawn to Worthing Borough Council's policies.
Annexe and granny-flat drawings for Goring — conservation area designated in 1985 — planned to stay ancillary and drawn to Worthing Borough Council's policies.
Annexe and granny-flat drawings for Goring Hall — conservation area designated in 1997 — planned to stay ancillary and drawn to Worthing Borough Council's policies.
Annexe and granny-flat drawings for Heene — conservation area designated in 1985 — planned to stay ancillary and drawn to Worthing Borough Council's policies.
Annexe and granny-flat drawings for Ivy Place — conservation area designated in 2000 — planned to stay ancillary and drawn to Worthing Borough Council's policies.
Three similar buildings, three different consents. This is what separates them.
| What you build | Planning status | Key test | What Worthing Borough 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 Worthing Borough 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 Worthing.
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 Worthing Borough Council's policies.
We submit the application with a supporting statement on use, manage validation and case-officer queries, and revise free until Worthing Borough 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 Worthing we prepare a full application to Worthing Borough 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. Worthing Borough 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.
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 Worthing, particularly near designated areas such as Chapel Road and Durrington. Worthing Borough 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 Worthing address specifically. Worthing Borough 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 Worthing address specifically. Worthing Borough 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 Worthing address specifically. Worthing Borough Council is the decision-maker.
We quote each Worthing 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 Worthing Borough Council approves. Call 020 7864 7245 to start.
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