Single-storey, double-storey, rear and side extension drawings for East Flegg homes — measured to Great Yarmouth Borough Council's design guidance, delivered in days and revised free until your decision, with a free approval-odds check before you commit.
Great Yarmouth Borough Council granted 92% of the householder planning decisions it made in its latest published year — 5 points above the 87% England-wide householder average. East Flegg contains No.13 East & West Somerton, No.18 Newport Cottages, No.7 Hemsby conservation areas (No.13 East & West Somerton designated 1987), so materials, fenestration and roof form are assessed against the appraisal, which is where a policy-literate drawing pack earns its keep. Its dominant postwar (1945–1970) housing stock sets the design brief on most streets.
Before permission is required, Class B allows 40m³ of added loft volume on a terrace and 50m³ on a semi or detached house, and Class A allows a 3m single-storey rear extension on a terrace or 4m on a detached house. East Flegg carries at least one Article 4 direction, and conservation areas including No.13 East & West Somerton, No.18 Newport Cottages and No.7 Hemsby remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in East Flegg is determined against an 8-week statutory target.
No.13 East & West Somerton (conservation area designated in 1987), No.18 Newport Cottages (conservation area designated in 2013), No.7 Hemsby (conservation area designated in 1977), No.9 Winterton (conservation area designated in 1979), Somerton (civil parish within East Flegg), Winterton-on-Sea (civil parish within East Flegg) and Hemsby (civil parish within East Flegg) — these are the East Flegg pockets our drawings cover most. Heritage designations here include No.13 East & West Somerton, No.18 Newport Cottages, No.7 Hemsby and No.9 Winterton. Great Yarmouth Borough Council weighs each proposal against Great Yarmouth Borough Council's development plan and the design policies it applies to householder applications, where the 3,690 homes here are 30% 1973-1982, 18% 1965-1972, 10% 1983-1992, which is what sets the realistic roof and rear-projection options. On roofs the borough is shallow trussed roofs typical of 1970s building and shallow-pitched roofs and integral garages typical of that period's building, over 1970s and early-1980s houses (30% of 3,690 homes), late-1960s and early-1970s houses (18%) and 1980s estate houses (10%).
What is permitted in East Flegg turns on designation first, so that is where we start: No.13 East & West Somerton (conservation area designated in 1987), No.18 Newport Cottages (conservation area designated in 2013), No.7 Hemsby (conservation area designated in 1977) and No.9 Winterton (conservation area designated in 1979). Inside those boundaries permitted development is curtailed and Great Yarmouth 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, East Flegg takes in Somerton, Winterton-on-Sea and Hemsby. Great Yarmouth Borough Council has 18 recorded Article 4 directions — check the address before assuming PD applies in East Flegg.
On stock, East Flegg is 1970s and early-1980s houses (30% of 3,690 homes), late-1960s and early-1970s houses (18%) and 1980s estate houses (10%) — which is why shallow trussed roofs typical of 1970s building and shallow-pitched roofs and integral garages typical of that period's building govern what a loft or rear projection can realistically be. Great Yarmouth Borough Council decided 153 householder applications in the latest published year and granted 92%, with 69% issued inside the eight-week target. We draw to that record rather than to a national average.
The full build-period split for East Flegg runs pre-1900 7% (240 homes), 1900-1918 2% (80 homes), 1919-1929 4% (130 homes), 1930-1939 5% (170 homes), 1945-1954 1% (40 homes), 1955-1964 8% (300 homes), 1965-1972 18% (650 homes), 1973-1982 30% (1,100 homes), 1983-1992 10% (360 homes), 1993-1999 3% (100 homes) and 2000-2008 6% (220 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.
Great Yarmouth Borough Council also decides for Central and Northgate, Gorleston, Nelson, Ormesby, St Andrews and West Flegg, so a decision in East Flegg 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 Article 4 Direction - Fleggburgh, Article 4 Direction - Hemsby Parish, Article 4 Direction - Horsey, Winterton, Sea Palling and Article 4 Direction - Houses in Multiple Occupation Great Yarmouth. 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 East Flegg and Great Yarmouth 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 | East Flegg |
|---|---|
| Dwellings recorded | 3,690 |
| Built pre-1900 | 240 (7%) |
| Built 1900-1918 | 80 (2%) |
| Built 1919-1929 | 130 (4%) |
| Built 1930-1939 | 170 (5%) |
| Built 1945-1954 | 40 (1%) |
| Built 1955-1964 | 300 (8%) |
| Built 1965-1972 | 650 (18%) |
| Built 1973-1982 | 1,100 (30%) |
| Built 1983-1992 | 360 (10%) |
| Built 1993-1999 | 100 (3%) |
| Built 2000-2008 | 220 (6%) |
| Built before 1919 | 9% |
| Built 1919–1939 | 8% |
| Built 1945–2008 | 75% |
| Conservation areas in East Flegg | 4 (No.13 East & West Somerton, No.18 Newport Cottages…) |
| Conservation areas district-wide | 23 |
| Article 4 directions recorded | 18 |
| Householder applications decided | 153 |
| Householder applications granted | 92% |
| Decided within 8 weeks | 69% |
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 Great Yarmouth Borough Council's own, from MHCLG live table PS2 for the year to 31 March 2026.
East Flegg homes come in a handful of recurring shapes, and each one points to a different extension. The borough is built largely from 1970s and early-1980s houses (30% of 3,690 homes), late-1960s and early-1970s houses (18%) and 1980s estate houses (10%), so a Victorian terrace usually wants a rear or side-return infill, while an interwar semi has room for a wider single-storey wrap or a two-storey side addition. Great Yarmouth Borough Council judges every one of them against Great Yarmouth Borough Council's development plan and the design policies it applies to householder applications, weighing footprint, height and the impact on the house next door before it looks at the elevations.
That is why the drawings decide the outcome. We set the extension depth against the permitted-development limits precisely, keep the eaves and ridge within the allowances, and plot the 45-degree daylight lines to the neighbours' windows so the case officer can see the amenity test is passed. East Flegg contains No.13 East & West Somerton, No.18 Newport Cottages, No.7 Hemsby conservation areas (No.13 East & West Somerton designated 1987), so materials, fenestration and roof form are assessed against the appraisal, so we design around it from the first sketch rather than discover it at validation.
East Flegg also protects whole streets — No.13 East & West Somerton, No.18 Newport Cottages, No.7 Hemsby and No.9 Winterton among them. Great Yarmouth Borough Council has 18 recorded Article 4 directions — check the address before assuming PD applies in East Flegg. On designated land the larger-home extension route and most side extensions stop being permitted development, so we confirm your address against those layers before drawing a line.
Plenty of East Flegg extensions are permitted development and need no planning application — a single-storey rear extension within the depth and height limits is the common case. You will normally need to apply to Great Yarmouth Borough Council if any of these apply:
We draw the footprint, the ridge and eaves heights and the neighbours' daylight on the page — the relationships Great Yarmouth Borough Council's officers weigh first — and submit a validation-complete pack, whether that is a lawful development certificate, a prior-approval notification or a full householder application.
Below is Great Yarmouth Borough Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Great Yarmouth Borough Council granted 92% of its householder applications in the year to 31 March 2026, and No.13 East & West Somerton shapes what is approved here. A complete, policy-literate extension pack anticipates those pressure points before submission, which is why professionally drawn applications are decided faster and refused less often than DIY ones.
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 No.13 East & West Somerton, No.18 Newport Cottages and No.7 Hemsby, the extension that lands most often is the single-storey rear addition — a glazed kitchen-diner across the back of the house, kept within the permitted-development depth or taken to a full application where the ground floor wants more. On the borough's 1970s and early-1980s houses (30% of 3,690 homes), a side-return infill frequently pairs with it to square off the plan; on wider 1980s estate houses (10%), a two-storey side or rear extension can add a bedroom above without swallowing the garden.
The 3,690 homes here are 30% 1973-1982, 18% 1965-1972, 10% 1983-1992, which is what sets the realistic roof and rear-projection options. We size the extension to the amenity and daylight tests, match the roof and materials to the host house, and keep enough garden to satisfy Great Yarmouth Borough Council's space standards — so the scheme answers the borough's questions before an objection can raise them. Where permitted-development rights are used up or removed, we prepare the householder application to the council's extension design guidance instead.
We draw extensions on every street in the borough. A few of the neighbourhoods where East Flegg projects come up most often:
Extension drawings for No.13 East & West Somerton's conservation area designated in 1987 — footprint-checked, daylight-tested and drawn to Great Yarmouth Borough Council's guidance.
Extension drawings for No.18 Newport Cottages's conservation area designated in 2013 — footprint-checked, daylight-tested and drawn to Great Yarmouth Borough Council's guidance.
Extension drawings for No.7 Hemsby's conservation area designated in 1977 — footprint-checked, daylight-tested and drawn to Great Yarmouth Borough Council's guidance.
Extension drawings for No.9 Winterton's conservation area designated in 1979 — footprint-checked, daylight-tested and drawn to Great Yarmouth Borough Council's guidance.
Extension drawings for Somerton's civil parish within East Flegg — footprint-checked, daylight-tested and drawn to Great Yarmouth Borough Council's guidance.
Extension drawings for Winterton-on-Sea's civil parish within East Flegg — footprint-checked, daylight-tested and drawn to Great Yarmouth Borough Council's guidance.
The right extension in East Flegg depends on your house type and how much garden you can give up. This is how the main options compare on planning route and what they add.
| Extension type | Permitted development? | What it adds | What Great Yarmouth Borough Council checks |
|---|---|---|---|
| Single-storey rear | Often, within 3m/4m depth (6m/8m via prior approval) | Bigger kitchen-diner across the back | Depth, height, neighbour daylight (45°) |
| Side-return infill | Sometimes, if within width and height limits | Squares off an L-shaped ground floor | Width vs the original house, glazing to boundary |
| Two-storey rear/side | No — full application | Extra bedroom or bathroom above | Bulk, overlooking, 7m rear-boundary gap |
| Wraparound (rear + side) | No — full application | Whole-width open-plan ground floor | Combined footprint and garden retained |
Route depends on your street — conservation areas such as No.13 East & West Somerton and No.18 Newport Cottages and Article 4 directions can remove permitted-development rights.
A fixed process built around how Great Yarmouth Borough Council validates and decides householder extension applications — most drawings are submission-ready within seven days of survey.
Tell us your East Flegg postcode and house type. We confirm your conservation and Article 4 status, how much permitted-development depth you have left, and score your odds against live Great Yarmouth Borough Council decisions.
We measure the existing footprint, floor and eaves levels, boundary distances and the neighbours' window positions — the numbers the depth limits and daylight tests depend on.
Chartered designers develop the single-storey, two-storey or side extension to your brief, drawn inside the permitted-development limits or to Great Yarmouth Borough Council's extension design guidance.
We submit the certificate, prior-approval notice or application, manage validation and case-officer queries, and revise the drawings free until Great Yarmouth Borough Council issues its decision.
Not always. A single-storey rear extension up to 3 metres deep on a terrace or semi, or 4 metres on a detached house, and no higher than 4 metres, is usually permitted development. In East Flegg you will need to apply to Great Yarmouth Borough Council for two-storey extensions, side extensions wider than half the house, anything forward of the front wall, deeper rear extensions under the larger-home prior-approval route, and any extension in a conservation area such as No.13 East & West Somerton and No.18 Newport Cottages.
Standard permitted development allows 3 metres on a terraced or semi-detached house and 4 metres on a detached one. The larger-home extension scheme can double that to 6 or 8 metres, but it needs a prior-approval notification to Great Yarmouth Borough Council and a neighbour-consultation period, and it does not apply on designated land such as East Flegg's conservation areas. We confirm which route your property qualifies for before drawing.
Two-storey and double-storey extensions almost always need a full householder application to Great Yarmouth Borough Council, because they fall outside permitted development on most homes. The council looks closely at bulk, overlooking of neighbours and the 7-metre gap a two-storey rear extension must keep from the rear boundary. We design to those tests and show the daylight and privacy angles on the drawings. This applies to your East Flegg address specifically.
A householder planning application in East Flegg runs to a statutory eight-week target, a larger-home prior-approval notification to around six weeks including the neighbour-consultation period, and a lawful development certificate to eight weeks. Incomplete submissions stall at validation, so we submit a complete pack and manage officer queries to keep the decision on schedule. Great Yarmouth Borough Council is the decision-maker.
Yes — planning permission and building regulations are separate consents, and almost every extension needs both. Planning governs whether you can build it; building control governs how it is built, covering structure, insulation, drainage and fire safety. We prepare the building-regulations drawings alongside the planning set so Great Yarmouth Borough Council's building control or an approved inspector can sign the work off. This applies to your East Flegg address specifically.
Every house and brief is different, so we price each East Flegg extension individually and send a fixed, no-obligation quote back within one working day. It covers the full drawing pack with free revisions until Great Yarmouth Borough Council approves, and we tell you upfront whether your extension qualifies as permitted development. Call 020 7864 7245 to get started.
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Same fixed quotes, same fast drawings — wherever your project is.