Orangery and conservatory drawings for Stoneygate homes — checked against the Class A rear limits and the 30m² building-regulations exemption, drawn to Leicester City Council's guidance and revised free until your decision.
Leicester City Council granted 87% of the householder planning decisions it made in its latest published year — level with the 87% England-wide householder average. Stoneygate is Leicester's best-preserved Victorian and Edwardian suburb, so extensions are judged against the character appraisal's protection of villa plots, boundary walls and mature trees, 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.
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. Stoneygate carries at least one Article 4 direction, and conservation areas including Stoneygate, Ashleigh Road and Knighton remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Stoneygate is determined against an 8-week statutory target.
London Road (the tree-lined approach fronted by substantial period villas), Ratcliffe Road (large detached houses in mature garden plots), Springfield Road (gothic and arts-and-crafts villas within the conservation area), Elms Road (handsome Edwardian houses close to the Ashleigh Road boundary), Knighton Park Road (villas edging Knighton Park and the parkland fringe) and St John's (the church quarter of Victorian merchant houses) — these are the Stoneygate pockets our drawings cover most. Heritage designations here include Stoneygate, Ashleigh Road, Knighton and New Walk. Leicester City Council weighs each proposal against the Leicester Local Plan and the Stoneygate Conservation Area Character Appraisal, where the HMO Article 4 Direction restricts subdivision of the large family houses into student lets and small HMOs. Several of the larger villas have been split into flats or mansion apartments, and converted flats carry no householder permitted-development rights.. On roofs the borough is steep gabled slate and clay-tile roofs with ornate ridge detail and hipped roofs on the larger detached villas, over grand Victorian and Edwardian villas on generous plots, arts-and-crafts and gothic-revival detached houses and later mansion flats and infill apartments.
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 Leicester Local Plan and the Stoneygate Conservation Area Character Appraisal. Stoneygate is largely grand Victorian and Edwardian villas on generous plots, arts-and-crafts and gothic-revival detached houses and later mansion flats and infill apartments, 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 Stoneygate and Ashleigh Road, rear glazing is assessed on visibility from the street and on the effect on the rear elevation's character. The 2022 extension of Leicester's HMO Article 4 Direction pulled much of Stoneygate into the controlled area, so new houses in multiple occupation need planning permission alongside the conservation controls that already cover the suburb.
Many conservatories are permitted development. You will need an application to Leicester 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 Leicester City Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Leicester grants the large majority of householder applications, though in Stoneygate the conservation status of the villa suburb and pressure to subdivide big houses are the recurring constraints. 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 London Road, Ratcliffe Road and Springfield Road, 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 grand victorian and edwardian villas on generous plots, 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.
Stoneygate is Leicester's best-preserved Victorian and Edwardian suburb, so extensions are judged against the character appraisal's protection of villa plots, boundary walls and mature trees. 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 Stoneygate. A few of the areas where they come up most often:
Orangery and conservatory drawings for London Road — the tree-lined approach fronted by substantial period villas — checked against the Class A limits and drawn to Leicester City Council's guidance.
Orangery and conservatory drawings for Ratcliffe Road — large detached houses in mature garden plots — checked against the Class A limits and drawn to Leicester City Council's guidance.
Orangery and conservatory drawings for Springfield Road — gothic and arts-and-crafts villas within the conservation area — checked against the Class A limits and drawn to Leicester City Council's guidance.
Orangery and conservatory drawings for Elms Road — handsome Edwardian houses close to the Ashleigh Road boundary — checked against the Class A limits and drawn to Leicester City Council's guidance.
Orangery and conservatory drawings for Knighton Park Road — villas edging Knighton Park and the parkland fringe — checked against the Class A limits and drawn to Leicester City Council's guidance.
Orangery and conservatory drawings for St John's — the church quarter of Victorian merchant houses — checked against the Class A limits and drawn to Leicester 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 Stoneygate postcode and house type. We confirm the Class A limits that apply, check designation status, and score your odds against live Leicester 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 Leicester 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 Stoneygate you will need an application to Leicester City Council beyond those limits, and on designated land such as Stoneygate and Ashleigh Road.
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 Stoneygate address specifically. Leicester City Council is the decision-maker.
For planning, none — both are rear extensions assessed against the same Class A limits by Leicester 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 Stoneygate 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 Stoneygate address specifically. Leicester 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 Stoneygate address specifically. Leicester 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 Leicester 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 Stoneygate address specifically.
We quote each Stoneygate 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 Leicester City Council approves. Call 020 7864 7245 to start.
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