Orangery and conservatory drawings for Hove homes — checked against the Class A rear limits and the 30m² building-regulations exemption, drawn to Brighton & Hove City Council's guidance and revised free until your decision.
Brighton & Hove City Council granted 89% of the householder planning decisions it made in its latest published year — 2 points above the 87% England-wide householder average. The Regency and early-Victorian stucco frontages of Brunswick and the seafront squares are protected in fine grain, down to render lines, railings and glazing, which is where a policy-literate drawing pack earns its keep. Its dominant Georgian (1714–1837), Victorian (1837–1901), Edwardian (1901–1910) and interwar (1918–1939) housing stock sets the design brief on most streets.
Class A and Class B set the thresholds — a rear dormer to 40m³ on a terrace or 50m³ on a semi or detached, and a single-storey rear extension to 3m on a terrace or 4m on a detached house — beyond which Brighton & Hove City Council needs a full application. Hove carries at least one Article 4 direction, and conservation areas including Old Hove, Brunswick Town and The Avenues remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Hove is determined against an 8-week statutory target.
Brunswick Town (Charles Busby's grand twin-terrace Regency estate off the seafront), The Avenues (wide Victorian streets of 1871–1901 villas between Church Road and the sea), Cliftonville (mid-Victorian Italianate villas and large Tudorbethan houses), Old Hove (the early stucco terraces around Brunswick and Adelaide Crescent), Poets' Corner (dense late-Victorian bay-fronted terraces north of Portland Road) and West Blatchington (interwar semi-detached suburbia on the downland fringe) — these are the Hove pockets our drawings cover most. Heritage designations here include Old Hove, Brunswick Town, The Avenues, Cliftonville, The Willett Estate and Sackville Gardens. Brighton & Hove City Council weighs each proposal against Brighton & Hove City Plan (Parts One 2016 and Two 2022) and the relevant SPDs, where seafront and set-piece square frontages attract the city's tightest design scrutiny, so alterations are kept behind the historic building line. Much of Brunswick Town, Old Hove and the Avenues is subdivided into flats and maisonettes, which carry no householder permitted-development rights of their own.. On roofs the borough is butterfly and valley roofs concealed behind the terrace parapets, mansard roofs on the taller stucco streets and hipped roofs on the interwar and villa stock, over Regency stucco terraces and set-piece squares, Victorian and Edwardian bay-fronted terraces, Italianate and Tudorbethan villas and interwar semi-detached houses.
The difference is not marketing. A conservatory is predominantly glazed — at least three quarters of the roof and half of the walls — which is what earns it the building-regulations exemption. An orangery has a solid masonry perimeter with a glazed lantern set into a flat roof, so it usually reads as a conventional extension for building control and has to meet Part L thermal standards, Part A structure and Part B fire like any other room.
Both are judged the same way for planning: as rear extensions, against the Class A depth, height and eaves limits, and against Brighton & Hove City Plan (Parts One 2016 and Two 2022) and the relevant SPDs. Hove is largely Regency stucco terraces and set-piece squares, Victorian and Edwardian bay-fronted terraces, Italianate and Tudorbethan villas and interwar semi-detached houses, and the design question is usually whether the glazing reads as a lightweight addition to that stock or as a bolted-on conservatory kit. On period houses, an orangery with a properly proportioned lantern almost always sits better than a full-height glazed box.
In conservation areas such as Old Hove and Brunswick Town, rear glazing is assessed on visibility from the street and on the effect on the rear elevation's character. Hove sits inside Brighton & Hove's city-wide Article 4 direction for small houses in multiple occupation, and separate conservation-area Article 4s in the Brunswick Town and Avenues estates remove permitted-development rights for works — from windows to front boundary walls — that would be automatic on an unprotected street.
Many conservatories are permitted development. You will need an application to Brighton & Hove City Council where any of these apply:
We check the scheme against the Class A planning limits and against the building-regulations exemption at the same time, so you know before committing whether you are building an exempt conservatory or a fully regulated room.
Below is Brighton & Hove City Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Brighton & Hove grants the large majority of householder applications city-wide, but in Hove the Regency conservation coverage and the protected seafront squares set close limits on what roofs, windows and front alterations can do. Glazed rear additions are judged on depth, eaves height and how the glazing meets the existing elevation.
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 Brunswick Town, The Avenues and Cliftonville, the schemes that succeed keep the eaves below the neighbour's ground-floor cill line, set the glazing back from the boundary, and use a solid parapet or brick perimeter to tie the addition into the house. On regency stucco terraces and set-piece squares, a lantern set in a flat roof usually reads better than a pitched glazed roof, and it avoids the summer overheating that makes full conservatories unusable for months a year.
The Regency and early-Victorian stucco frontages of Brunswick and the seafront squares are protected in fine grain, down to render lines, railings and glazing. The decision worth making early is whether to keep the separating doors. Keeping them preserves the building-regulations exemption but leaves you with a room that is not part of the house; removing them creates one continuous space but brings the whole addition inside Part L, which changes the glazing specification and usually the heating design too. We set out both versions before you commit.
We draw glazed rear additions across Hove. A few of the areas where they come up most often:
Orangery and conservatory drawings for Brunswick Town — Charles Busby's grand twin-terrace Regency estate off the seafront — checked against the Class A limits and drawn to Brighton & Hove City Council's guidance.
Orangery and conservatory drawings for The Avenues — wide Victorian streets of 1871–1901 villas between Church Road and the sea — checked against the Class A limits and drawn to Brighton & Hove City Council's guidance.
Orangery and conservatory drawings for Cliftonville — mid-Victorian Italianate villas and large Tudorbethan houses — checked against the Class A limits and drawn to Brighton & Hove City Council's guidance.
Orangery and conservatory drawings for Old Hove — the early stucco terraces around Brunswick and Adelaide Crescent — checked against the Class A limits and drawn to Brighton & Hove City Council's guidance.
Orangery and conservatory drawings for Poets' Corner — dense late-Victorian bay-fronted terraces north of Portland Road — checked against the Class A limits and drawn to Brighton & Hove City Council's guidance.
Orangery and conservatory drawings for West Blatchington — interwar semi-detached suburbia on the downland fringe — checked against the Class A limits and drawn to Brighton & Hove City Council's guidance.
The planning test is the same for both. The building-regulations test is not.
| Structure | Planning route | Building regulations | Practical effect |
|---|---|---|---|
| Conservatory under 30m², doors retained | Class A rear extension limits | Largely exempt | Cheaper build, unheated in winter |
| Conservatory, doors removed | Class A rear extension limits | Part L applies in full | Continuous space, higher spec glazing |
| Orangery with solid perimeter and lantern | Class A rear extension limits | Fully regulated | Usable year round, better on period houses |
| Any of the above beyond the depth limits | Full householder application | As above | 8-week determination |
| Any of the above on designated land | Full householder application | As above | Design and visibility assessed |
Planning limits from the GPDO 2015, Schedule 2, Part 1, Class A; exemption criteria from the Building Regulations 2010, Schedule 2, Class 7.
A fixed process covering both consents, because they pull in different directions.
Send us your Hove postcode and house type. We confirm the Class A limits that apply, check designation status, and score your odds against live Brighton & Hove City Council decisions.
We measure the rear elevation, eaves and ground levels, and the neighbouring boundary — the numbers that decide both the projection limit and the 2-metre eaves rule.
Chartered designers develop the orangery or conservatory to your brief, and we set out clearly whether it stays inside the building-regulations exemption or becomes a fully regulated room.
We submit the certificate or application, manage validation and officer queries, and revise free until Brighton & Hove City Council decides.
Often not. A conservatory is treated as a rear extension, so it can be permitted development within the Class A limits — 3 metres of projection on a terrace or semi, 4 metres on a detached house, with eaves under 3 metres where it sits within 2 metres of a boundary. In Hove you will need an application to Brighton & Hove City Council beyond those limits, and on designated land such as Old Hove and Brunswick Town.
A conservatory is largely exempt if it is under 30 square metres, at ground level, separated from the house by external-quality doors, and has at least 75% of its roof and 50% of its walls glazed. Glazing, electrics and any drainage work still have to comply. Remove the separating doors and the exemption falls away — the space becomes part of the house and Part L thermal standards apply. This applies to your Hove address specifically. Brighton & Hove City Council is the decision-maker.
For planning, none — both are rear extensions assessed against the same Class A limits by Brighton & Hove City Council. The difference is in building control: an orangery's solid perimeter and flat roof with a lantern usually means it fails the glazing test for exemption, so it is fully regulated. That is why an orangery costs more to build but is comfortable in January.
Usually yes at the rear, though permitted-development rights are narrower on designated land and an Article 4 direction can remove them entirely. The assessment turns on whether the addition is visible from the street and how it meets the original rear elevation. A restrained orangery in matching brick with a lantern is consistently easier to get through than a proprietary glazed conservatory. This applies to your Hove address specifically. Brighton & Hove City Council is the decision-maker.
A fully glazed roof will, unless it is specified for it. That is the practical reason most of our clients end up building an orangery instead: a solid insulated roof perimeter with a lantern gives daylight without the greenhouse effect, and keeps the space usable across the year. We raise it at design stage because it is much cheaper to solve on paper than after the build. This applies to your Hove address specifically. Brighton & Hove City Council is the decision-maker.
If you excavate foundations within 3 metres of a neighbouring structure and deeper than its foundations, or build on the boundary itself, the Party Wall etc. Act 1996 applies and notice must be served. That is separate from Brighton & Hove City Council's planning decision. We flag it at design stage so the notice period does not delay the start on site.
We quote each Hove orangery or conservatory individually, because the structure and the roof form change the work considerably, and send a fixed, no-obligation quote within one working day. It covers the full drawing pack with free revisions until Brighton & Hove City Council approves. Call 020 7864 7245 to start.
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