Two-storey extension drawings for Central homes — bedroom above, living space below, drawn against the 3-metre projection and 7-metre boundary rules and to Worthing Borough Council's design guidance, 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. Central contains Chapel Road, Little High Street, Montague Street 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) and Edwardian (1901–1910) 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. Central carries at least one Article 4 direction, and conservation areas including Chapel Road, Little High Street and Montague Street remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Central is determined against an 8-week statutory target.
Chapel Road (conservation area designated in 1997), Little High Street (conservation area designated in 1997), Montague Street (conservation area designated in 2000), Park Crescent (conservation area designated in 1975), Richmond Road (conservation area designated in 1997), South Street (conservation area designated in 2000), Steyne Gardens (conservation area designated in 2000) and Warwick Gardens (conservation area designated in 1985) — these are the Central pockets our drawings cover most. Heritage designations here include Chapel Road, Little High Street, Montague Street, Park Crescent, Richmond Road, South Street, Steyne Gardens and Warwick Gardens. Worthing Borough Council weighs each proposal against Worthing Borough Council's development plan and the design policies it applies to householder applications, where the 5,950 homes here are 37% pre-1900, 20% 1900-1918, 10% 2000-2008, 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 pitched and hipped roofs with generous eaves typical of Edwardian building, over Victorian and earlier houses (37% of 5,950 homes), Edwardian houses (20%) and 2000s houses and apartments (10%).
Central's designated heritage is specific, and it is the first thing we check against your address: Chapel Road (conservation area designated in 1997), Little High Street (conservation area designated in 1997), Montague Street (conservation area designated in 2000), Park Crescent (conservation area designated in 1975), Richmond Road (conservation area designated in 1997), South Street (conservation area designated in 2000), Steyne Gardens (conservation area designated in 2000) and Warwick Gardens (conservation area designated in 1985). 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.
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 Central.
On stock, Central is Victorian and earlier houses (37% of 5,950 homes), Edwardian houses (20%) and 2000s houses and apartments (10%) — which is why steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building and pitched and hipped roofs with generous eaves typical of Edwardian 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 Central runs pre-1900 37% (2,180 homes), 1900-1918 20% (1,170 homes), 1919-1929 1% (80 homes), 1930-1939 3% (150 homes), 1955-1964 2% (120 homes), 1965-1972 3% (160 homes), 1973-1982 5% (320 homes), 1983-1992 7% (440 homes), 1993-1999 2% (110 homes) and 2000-2008 10% (600 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 Goring, Heene, Marine and Salvington, so a decision in Central 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 Central 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 | Central |
|---|---|
| Dwellings recorded | 5,950 |
| Built pre-1900 | 2,180 (37%) |
| Built 1900-1918 | 1,170 (20%) |
| Built 1919-1929 | 80 (1%) |
| Built 1930-1939 | 150 (3%) |
| Built 1955-1964 | 120 (2%) |
| Built 1965-1972 | 160 (3%) |
| Built 1973-1982 | 320 (5%) |
| Built 1983-1992 | 440 (7%) |
| Built 1993-1999 | 110 (2%) |
| Built 2000-2008 | 600 (10%) |
| Built before 1919 | 56% |
| Built 1919–1939 | 4% |
| Built 1945–2008 | 29% |
| Conservation areas in Central | 8 (Chapel Road, Little High Street…) |
| 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.
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. Central is largely Victorian and earlier houses (37% of 5,950 homes), Edwardian houses (20%) and 2000s houses and apartments (10%), and steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building and pitched and hipped roofs with generous eaves typical of Edwardian 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.
Central contains Chapel Road, Little High Street, Montague Street conservation areas (Chapel Road designated 1997), so materials, fenestration and roof form are assessed against the appraisal. 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 Central.
Some two-storey rear extensions are permitted development. You will need a full application to Worthing 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 Worthing Borough Council checks first — then submit a validation-complete pack.
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 its householder applications in the year to 31 March 2026, and Chapel Road 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.
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Across Chapel Road, Little High Street and Montague Street, 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 victorian and earlier houses (37% of 5,950 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 5,950 homes here are 37% pre-1900, 20% 1900-1918, 10% 2000-2008, 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 Central. A few of the areas where they come up most often:
Two storey extension drawings for Chapel Road — conservation area designated in 1997 — dimensioned against the 3m and 7m limits and drawn to Worthing Borough Council's guidance.
Two storey extension drawings for Little High Street — conservation area designated in 1997 — dimensioned against the 3m and 7m limits and drawn to Worthing Borough Council's guidance.
Two storey extension drawings for Montague Street — conservation area designated in 2000 — dimensioned against the 3m and 7m limits and drawn to Worthing Borough Council's guidance.
Two storey extension drawings for Park Crescent — conservation area designated in 1975 — dimensioned against the 3m and 7m limits and drawn to Worthing Borough Council's guidance.
Two storey extension drawings for Richmond Road — conservation area designated in 1997 — dimensioned against the 3m and 7m limits and drawn to Worthing Borough Council's guidance.
Two storey extension drawings for South Street — conservation area designated in 2000 — dimensioned against the 3m and 7m limits and drawn to Worthing 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 Worthing 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 Worthing Borough Council validates and decides two-storey applications.
Send us your Central postcode and garden depth. We measure the 7-metre boundary rule against your plot, confirm designation status, and score your odds against live Worthing 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 Worthing 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 Central, the 7-metre rule is what most commonly forces a full application to Worthing 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 Central gardens this is decisive, and we measure it on survey before any design work rather than discovering it at validation. Worthing Borough Council is the decision-maker.
Not under permitted development — two-storey side extensions always need a full application to Worthing 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 Central 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 Central address specifically. Worthing 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 Worthing Borough Council's planning decision, so we flag the notice period early and detail the junction on the drawings. This applies to your Central 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 Central address specifically. Worthing Borough Council is the decision-maker.
We quote each Central 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 Worthing Borough Council approves. Call 020 7864 7245 to start.
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