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Larger home extension prior approval in Ormesby — a deep single-storey rear extension to a house
Ormesby · Prior Approval & Neighbour Consultation

Larger home extension prior approval in Ormesby

The fast route to a deep single-storey rear extension in Ormesby — up to 6 metres on an attached house or 8 on a detached one — via Great Yarmouth Borough Council's prior approval scheme rather than a full planning application.

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Ormesby planning decisions and design rules

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. Ormesby contains the No.11 Ormesby St Margaret conservation area (No.11 Ormesby St Margaret designated 1983), 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. Ormesby carries at least one Article 4 direction, and conservation areas including No.11 Ormesby St Margaret remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Ormesby is determined against an 8-week statutory target.

No.11 Ormesby St Margaret (conservation area designated in 1983), Ormesby St. Margaret with Scratby (civil parish within Ormesby) and Ormesby St. Michael (civil parish within Ormesby) — these are the Ormesby pockets our drawings cover most. Heritage designations here include No.11 Ormesby St Margaret. 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 2,850 homes here are 27% 1973-1982, 18% 1965-1972, 9% 1955-1964, 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 (27% of 2,850 homes), late-1960s and early-1970s houses (18%) and late-1950s and early-1960s houses (9%).

Why a Ormesby scheme is judged on Ormesby terms

What is permitted in Ormesby turns on designation first, so that is where we start: No.11 Ormesby St Margaret (conservation area designated in 1983). 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, Ormesby takes in Ormesby St. Margaret with Scratby and Ormesby St. Michael. Great Yarmouth Borough Council has 18 recorded Article 4 directions — check the address before assuming PD applies in Ormesby.

On stock, Ormesby is 1970s and early-1980s houses (27% of 2,850 homes), late-1960s and early-1970s houses (18%) and late-1950s and early-1960s houses (9%) — 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 Ormesby runs pre-1900 8% (240 homes), 1900-1918 0% (10 homes), 1919-1929 4% (100 homes), 1930-1939 6% (180 homes), 1945-1954 1% (30 homes), 1955-1964 9% (250 homes), 1965-1972 18% (520 homes), 1973-1982 27% (760 homes), 1983-1992 8% (220 homes), 1993-1999 5% (150 homes) and 2000-2008 2% (60 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, East Flegg, Gorleston, Nelson, St Andrews and West Flegg, so a decision in Ormesby 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.

Ormesby by the published data

Published figures for Ormesby 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.

MeasureOrmesby
Dwellings recorded2,850
Built pre-1900240 (8%)
Built 1900-191810 (0%)
Built 1919-1929100 (4%)
Built 1930-1939180 (6%)
Built 1945-195430 (1%)
Built 1955-1964250 (9%)
Built 1965-1972520 (18%)
Built 1973-1982760 (27%)
Built 1983-1992220 (8%)
Built 1993-1999150 (5%)
Built 2000-200860 (2%)
Built before 19199%
Built 1919–193910%
Built 1945–200870%
Conservation areas in Ormesby1 (No.11 Ormesby St Margaret)
Conservation areas district-wide23
Article 4 directions recorded18
Householder applications decided153
Householder applications granted92%
Decided within 8 weeks69%

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.

How the prior approval route works in Ormesby

The ordinary Class A limits stop a single-storey rear extension at 3 metres on an attached house and 4 on a detached one. The larger home extension scheme doubles both, on condition that the council is told first. That notification is not an application for permission — the council cannot refuse on design, materials or policy grounds. It can only consider the effect on the amenity of adjoining premises, and only if a neighbour actually objects during the 21-day consultation.

The other conditions still apply and are strict: single storey only, no higher than 4 metres, eaves no higher than the existing eaves, and no more than half the land around the original house covered. It is not available on designated land, so a house in a conservation area such as No.11 Ormesby St Margaret cannot use it at all. Materials must be similar to the existing house, and the extension must not include a veranda, balcony or raised platform.

Ormesby is largely 1970s and early-1980s houses (27% of 2,850 homes), late-1960s and early-1970s houses (18%) and late-1950s and early-1960s houses (9%). Ormesby contains the No.11 Ormesby St Margaret conservation area (No.11 Ormesby St Margaret designated 1983), so materials, fenestration and roof form are assessed against the appraisal, which matters here because an objecting neighbour puts amenity squarely in front of a case officer. Great Yarmouth Borough Council has 18 recorded Article 4 directions — check the address before assuming PD applies in Ormesby.

Isometric drawing of a deep rear extension in Ormesby

Does your Ormesby extension qualify for prior approval?

The scheme is available where all of these hold. Fail any one and it is a full application to Great Yarmouth Borough Council instead:

  • The extension is single storey and rear-facing
  • It projects no more than 6 metres on a terraced or semi-detached house, or 8 metres on a detached house
  • It is no more than 4 metres high, with eaves no higher than the existing eaves
  • The property is a house, not a flat or maisonette
  • The property is not on designated land — the scheme is unavailable in conservation areas such as No.11 Ormesby St Margaret
  • No more than half the land around the original house is covered by buildings
  • The materials are similar in appearance to the existing house
  • You notify the council BEFORE building — retrospective use of the scheme is not possible

Ormesby householder decisions — live from council data

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.11 Ormesby St Margaret shapes what is approved here. Prior approval turns on neighbour amenity alone, so the drawings that matter are the ones showing the relationship to the boundary.

Source: MHCLG planning application statistics (householder decisions, England, 1 April 2025 - 31 March 2026). Compare every borough on our London approval-rate league table.

92%householder applications approved in Great Yarmouth
87%national average — Great Yarmouth is 5 points above the national average

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What gets through prior approval in Ormesby

Across No.11 Ormesby St Margaret, Ormesby St. Margaret with Scratby and Ormesby St. Michael, the notifications that clear without objection are the ones that treat the neighbour as the audience. We show the extension in section against the boundary, demonstrate the 45-degree daylight relationship to the nearest habitable window, and where the plot is tight we taper the depth away from the boundary rather than running the full 6 metres to the fence.

The 2,850 homes here are 27% 1973-1982, 18% 1965-1972, 9% 1955-1964, which is what sets the realistic roof and rear-projection options. Where an objection does arrive, the council's assessment is narrow: loss of light, outlook and overbearing effect on the adjoining property, nothing else. A pack that has already answered those three points on the drawings usually survives an objection, whereas one that leaves them to the officer's imagination usually does not.

Deep single-storey rear extension to a house in Ormesby

Larger home extensions across Ormesby

We prepare prior-approval notifications across Ormesby. A few of the areas where deep rear extensions come up most often:

No.11 Ormesby St Margaret

Prior approval drawings for No.11 Ormesby St Margaret — conservation area designated in 1983 — dimensioned to the 6m and 8m limits and prepared for Great Yarmouth Borough Council's neighbour consultation.

Ormesby St. Margaret with Scratby

Prior approval drawings for Ormesby St. Margaret with Scratby — civil parish within Ormesby — dimensioned to the 6m and 8m limits and prepared for Great Yarmouth Borough Council's neighbour consultation.

Ormesby St. Michael

Prior approval drawings for Ormesby St. Michael — civil parish within Ormesby — dimensioned to the 6m and 8m limits and prepared for Great Yarmouth Borough Council's neighbour consultation.

Prior approval or full application in Ormesby?

Same extension, two routes, very different tests.

RouteDepth allowedWhat the council may considerTimescale
Ordinary Class A permitted development3m attached / 4m detachedNothing — no application neededImmediate
Larger home extension prior approval6m attached / 8m detachedAmenity of adjoining premises, only if a neighbour objects21-day consultation, 42-day determination
Full householder applicationNo fixed limitDesign, materials, policy, amenity, everything8-week target
Any of these on designated land3m / 4m onlyPrior approval scheme unavailableFull application beyond the limits

Limits and procedure from the GPDO 2015, Schedule 2, Part 1, Class A and paragraph A.4, made permanent by amendment in 2019.

Four steps to prior approval in Ormesby

A process built around the 21-day consultation, which is where these schemes are won or lost.

  1. 1

    Free eligibility check

    Send us your Ormesby postcode and house type. We confirm whether the property is on designated land, whether the scheme is available, and what depth you can realistically take.

  2. 2

    Measured survey

    We measure the original rear wall, eaves height, boundary distances and the neighbouring windows that the amenity assessment will turn on.

  3. 3

    Notification pack

    We draw the extension to the 6m or 8m limit with the boundary relationship shown in section, and prepare the written description and adjoining-owner details Great Yarmouth Borough Council needs to start the consultation.

  4. 4

    Consultation & follow-through

    We submit, track the 21-day consultation and the 42-day determination, respond to any objection on amenity grounds, and revise free until the decision.

Frequently asked questions

How deep can a rear extension be in Ormesby without planning permission?

Three metres on a terraced or semi-detached house and four on a detached one under ordinary permitted development. Under the larger home extension prior approval scheme those double to six and eight metres, provided you notify Great Yarmouth Borough Council before starting and the conditions on height, materials and land coverage are met. The scheme is not available on designated land. This applies to your Ormesby address specifically.

What is prior approval for a larger home extension in Ormesby?

It is a notification, not an application for permission. You tell Great Yarmouth Borough Council what you intend to build, it writes to the adjoining owners, and they have 21 days to object. If nobody objects, you may build. If someone does, the council assesses the effect on the amenity of adjoining premises and must decide within 42 days. Design and policy are not in scope. This applies to your Ormesby address specifically.

What happens if my neighbour objects in Ormesby?

The council then considers the impact on the amenity of the adjoining property — loss of light, loss of outlook, and overbearing effect — and nothing else. It cannot refuse because it dislikes the design or the materials. We prepare the drawings so those three questions are already answered in section and on the site plan, which is what usually carries an objected scheme through. This applies to your Ormesby address specifically. Great Yarmouth Borough Council is the decision-maker.

Can I use prior approval in a Ormesby conservation area?

No. The larger home extension scheme is unavailable on designated land, which includes conservation areas such as No.11 Ormesby St Margaret, national landscapes, national parks and world heritage sites. On those properties the ordinary 3-metre and 4-metre limits apply, and anything deeper needs a full householder application to Great Yarmouth Borough Council.

How long does prior approval take in Ormesby?

Twenty-one days for the neighbour consultation, and a maximum of 42 days from a valid submission for the council to determine it. If the council does not respond within 42 days you may proceed as notified. That deadline is the scheme's real advantage over a full application, and it is why validation completeness matters so much. This applies to your Ormesby address specifically. Great Yarmouth Borough Council is the decision-maker.

Do I still need building regulations approval in Ormesby?

Yes — always. Prior approval deals only with the planning position. A 6-metre rear extension still needs building control approval for foundations, structure, drainage, thermal performance and fire safety, and the beam over the opening into the existing house needs designing and calculating. We prepare both sets so the notified scheme is the buildable one. This applies to your Ormesby address specifically. Great Yarmouth Borough Council is the decision-maker.

How much do prior approval drawings in Ormesby cost?

We quote each Ormesby scheme individually, because plot shape and the boundary relationship drive the work, and send a fixed, no-obligation quote within one working day. It covers the notification pack and free revisions until Great Yarmouth Borough Council determines it. Call 020 7864 7245 to start.

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