Orangery and conservatory drawings for Allesley homes — checked against the Class A rear limits and the 30m² building-regulations exemption, drawn to Coventry City Council's guidance and revised free until your decision.
Coventry City Council granted 86% of the householder planning decisions it made in its latest published year — 1 point below the 87% England-wide householder average. The Coundon Wedge green belt around the village strictly limits new building and larger replacement dwellings on the rural edge, which is where a policy-literate drawing pack earns its keep. Its dominant interwar (1918–1939) and postwar (1945–1970) housing stock sets the design brief on most streets.
The permitted-development ceilings are fixed: 40m³ of new roof volume for a terraced loft and 50m³ for a semi or detached house under Class B, plus a 3m single-storey rear extension on a terrace or 4m on a detached house under Class A. In conservation areas such as Allesley Village and Brownshill Green those rights are removed, so we confirm your exact address before a line is drawn. A validated householder application in Allesley is determined against an 8-week statutory target.
Allesley Village (a conservation area of cottages and a medieval church core designated in 1968), Brownshill Green (a small conservation area of rural-edge cottages to the north), Allesley Park (post-war and 1960s suburban housing south of the village), Allesley Green (later detached and semi-detached estates toward the A45), Coundon Wedge (green-belt farmland separating the village from the built-up city) and Eastern Green fringe (interwar and post-war semis on the western edge) — these are the Allesley pockets our drawings cover most. Heritage designations here include Allesley Village and Brownshill Green. Coventry City Council weighs each proposal against the Coventry Local Plan (2017), where the Allesley Village conservation area protects its cottage scale, materials and church setting in fine grain. On roofs the borough is steep tiled and part-thatched roofs on the village cottages and hipped roofs on the interwar and post-war semis and detached homes, over historic village cottages and farmhouses, 1930s interwar semi-detached houses and post-war and later suburban detached homes.
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 the Coventry Local Plan (2017). Allesley is largely historic village cottages and farmhouses, 1930s interwar semi-detached houses and post-war and later suburban detached homes, 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 Allesley Village and Brownshill Green, rear glazing is assessed on visibility from the street and on the effect on the rear elevation's character. Allesley (Bablake ward) sits outside the wards named in Coventry's citywide HMO Article 4 direction, so the usual householder permitted-development rights still apply — though works within the Allesley Village and Brownshill Green conservation areas remain controlled.
Many conservatories are permitted development. You will need an application to Coventry 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 Coventry City Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Allesley approves most householder schemes, but the green-belt Coundon Wedge and the tightly-protected village conservation area are what constrain scale and siting on the rural edge. 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 Allesley Village, Brownshill Green and Allesley Park, 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 historic village cottages and farmhouses, 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 Coundon Wedge green belt around the village strictly limits new building and larger replacement dwellings on the rural edge. 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 Allesley. A few of the areas where they come up most often:
Orangery and conservatory drawings for Allesley Village — a conservation area of cottages and a medieval church core designated in 1968 — checked against the Class A limits and drawn to Coventry City Council's guidance.
Orangery and conservatory drawings for Brownshill Green — a small conservation area of rural-edge cottages to the north — checked against the Class A limits and drawn to Coventry City Council's guidance.
Orangery and conservatory drawings for Allesley Park — post-war and 1960s suburban housing south of the village — checked against the Class A limits and drawn to Coventry City Council's guidance.
Orangery and conservatory drawings for Allesley Green — later detached and semi-detached estates toward the A45 — checked against the Class A limits and drawn to Coventry City Council's guidance.
Orangery and conservatory drawings for Coundon Wedge — green-belt farmland separating the village from the built-up city — checked against the Class A limits and drawn to Coventry City Council's guidance.
Orangery and conservatory drawings for Eastern Green fringe — interwar and post-war semis on the western edge — checked against the Class A limits and drawn to Coventry 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 Allesley postcode and house type. We confirm the Class A limits that apply, check designation status, and score your odds against live Coventry 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 Coventry 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 Allesley you will need an application to Coventry City Council beyond those limits, and on designated land such as Allesley Village and Brownshill Green.
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 Allesley address specifically. Coventry City Council is the decision-maker.
For planning, none — both are rear extensions assessed against the same Class A limits by Coventry 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. This applies to your Allesley address specifically.
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 Allesley address specifically. Coventry 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 Allesley address specifically. Coventry 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 Coventry City Council's planning decision. We flag it at design stage so the notice period does not delay the start on site. This applies to your Allesley address specifically.
We quote each Allesley 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 Coventry City Council approves. Call 020 7864 7245 to start.
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