Side-return infill drawings for Belgrave terraces — the glazed extension that fills the redundant side alley and opens up the kitchen, drawn to Leicester City Council's guidance, delivered in days and revised free until your decision, with a free approval-odds check first.
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. The Belgrave Hall conservation area protects the setting of the Queen Anne hall and its gardens, constraining nearby extension and infill design, which is where a policy-literate drawing pack earns its keep. Its dominant Victorian (1837–1901), interwar (1918–1939) and postwar (1945–1970) housing stock sets the design brief on most streets.
Under Class B, a rear dormer stays permitted development up to 40m³ of added roof volume on a terrace or 50m³ on a semi-detached or detached house, while Class A allows a single-storey rear extension of 3m beyond the original rear wall on a terrace and 4m on a detached house before a full application is needed. In conservation areas such as Belgrave Hall, Loughborough Road and St Paul's those rights are removed, so we confirm your exact address before a line is drawn. A validated householder application in Belgrave is determined against an 8-week statutory target.
Golden Mile (the Belgrave Road and Melton Road spine of Victorian terraces and shopfronts), Belgrave Hall (the historic hall and gardens within the conservation area), Rushey Mead (interwar and postwar semis on the northern estates), Loughborough Road (terraces and period frontages along the conservation-area route), Abbey (mixed Victorian terraces and later housing near the river) and Troon (postwar estates north of the Golden Mile) — these are the Belgrave pockets our drawings cover most. Heritage designations here include Belgrave Hall, Loughborough Road and St Paul's. Leicester City Council weighs each proposal against the Leicester Local Plan and the Belgrave Hall conservation area appraisal, where the diverse Golden Mile terraces mix homes with active shopfronts, so mixed-use frontage detail is scrutinised on Belgrave Road and Melton Road. Some of the older Belgrave terraces are subdivided into flats and maisonettes, which carry no householder permitted-development rights.. On roofs the borough is gabled slate roofs on the Victorian terraces and hipped roofs on the interwar semis, over large 19th-century terraced developments along the Golden Mile, 1930s semi-detached houses replacing earlier terraces and postwar redevelopment blocks from the 1960s clearances.
The side return is the classic terrace fix, and Belgrave has the stock for it — the borough is built largely from large 19th-century terraced developments along the Golden Mile, 1930s semi-detached houses replacing earlier terraces and postwar redevelopment blocks from the 1960s clearances, and the Victorian and Edwardian versions almost all have an L-shaped back addition with a wasted alley beside it. Fill that alley and the dark galley kitchen becomes a bright, square room the full width of the house. Leicester City Council judges the infill against the Leicester Local Plan and the Belgrave Hall conservation area appraisal, and because it runs along the party boundary, the neighbour relationship is read before the design.
That boundary is where the drawings earn their keep. We set the infill wall on or up to the line, keep the roof — usually a glazed lantern or a shallow pitch tying into the existing back-addition slope — below the neighbour's first-floor windows, and detail the rainwater and party-wall junction so the build is watertight and the Party Wall Act is satisfied. The Belgrave Hall conservation area protects the setting of the Queen Anne hall and its gardens, constraining nearby extension and infill design, so we resolve it on the section rather than leave it to the case officer.
Many of Belgrave's terraces sit in conservation areas — Belgrave Hall, Loughborough Road and St Paul's among them — where a side extension is no longer permitted development. Belgrave sits outside Leicester's HMO Article 4 areas, but the Belgrave Hall and Loughborough Road conservation areas apply heritage controls that remove some permitted-development rights near the historic hall and the Golden Mile frontages. We confirm the designation before a line is drawn.
Some single-storey side returns in Belgrave are permitted development, but the width and boundary make an application more likely than for a straight rear extension. You will normally need to apply to Leicester City Council if any of these apply:
We draw the infill wall on the boundary, the glazed roof below the neighbour's windows and the party-wall junction on the page — the details Leicester City Council's officers and your neighbour both check — and submit a validation-complete pack, whether that is a lawful development certificate or a full householder application.
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, and in Belgrave the character of the Golden Mile terraces and the Belgrave Hall setting are the main design constraints. Side returns hinge on width, roof glazing and the party boundary, so a pack that resolves those details upfront is decided faster and refused less often than a DIY submission.
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 Golden Mile, Belgrave Hall and Rushey Mead, the approved side return is a single-storey infill roofed with a glazed lantern or roof light to pull daylight deep into the plan, its flank wall built on the boundary and finished to match the host brick. On the borough's large 19th-century terraced developments along the golden mile, this is frequently the single biggest gain in usable ground-floor space, and where it stays within the width and height limits it can proceed under permitted development or a lawful development certificate.
The diverse Golden Mile terraces mix homes with active shopfronts, so mixed-use frontage detail is scrutinised on Belgrave Road and Melton Road. We keep the glazed roof below the neighbour's cill line, set the gutter and the party-wall flashing so water and maintenance are designed in, and — where owners want the full open-plan room — pair the infill with a rear extension as a single wraparound application. That way Leicester City Council sees one coherent scheme rather than two overlapping ones.
We draw side-return infills on every terraced street in the borough. A few of the neighbourhoods where Belgrave side returns come up most often:
Side return extension drawings for Golden Mile's the Belgrave Road and Melton Road spine of Victorian terraces and shopfronts — width-checked, party-wall detailed and drawn to Leicester City Council's guidance.
Side return extension drawings for Belgrave Hall's the historic hall and gardens within the conservation area — width-checked, party-wall detailed and drawn to Leicester City Council's guidance.
Side return extension drawings for Rushey Mead's interwar and postwar semis on the northern estates — width-checked, party-wall detailed and drawn to Leicester City Council's guidance.
Side return extension drawings for Loughborough Road's terraces and period frontages along the conservation-area route — width-checked, party-wall detailed and drawn to Leicester City Council's guidance.
Side return extension drawings for Abbey's mixed Victorian terraces and later housing near the river — width-checked, party-wall detailed and drawn to Leicester City Council's guidance.
Side return extension drawings for Troon's postwar estates north of the Golden Mile — width-checked, party-wall detailed and drawn to Leicester City Council's guidance.
Whether a side return in Belgrave needs permission comes down to width, storeys and whether the street is designated. This is how the cases compare.
| Side return type | Permitted development? | What it gains | What Leicester City Council checks |
|---|---|---|---|
| Single-storey infill, within limits | Often yes, if under half the house width | Full-width kitchen-diner | Width, 4m height, roof glazing |
| Single-storey, over half width | No — full application | Wider room, more light | Boundary treatment, neighbour amenity |
| Two-storey side return | No — full application | Room above as well as below | Bulk, overlooking, terrace rhythm |
| Wraparound (side + rear) | No — full application | L-shaped open-plan ground floor | Combined footprint, garden retained |
In conservation areas such as Belgrave Hall and Loughborough Road, side extensions are not permitted development and always need a full application.
A fixed process built around how Leicester City Council validates and decides side-return applications — most drawings are submission-ready within seven days of survey.
Send us your Belgrave postcode and terrace type. We confirm your conservation and Article 4 status, whether the infill stays within the side-extension width limit, and score your odds against live Leicester City Council decisions.
We measure the side alley, the back-addition wall, floor and eaves levels and the neighbour's window heights — the numbers the width limit, roof pitch and party-wall detailing depend on.
Chartered designers develop the infill and its glazed roof to your brief, drawn inside the permitted-development limits or to Leicester City Council's extension guidance, with the boundary and party-wall junction detailed.
We submit the certificate or application, manage validation and case-officer queries, and revise the drawings free until Leicester City Council issues its decision.
Sometimes not. A single-storey side-return infill can be permitted development if it is no wider than half the original house, no higher than 4 metres, and the property is not on designated land. In Belgrave you will need a full application to Leicester City Council for anything wider or taller, for a two-storey side return, and for any side extension in a conservation area such as Belgrave Hall and Loughborough Road, where those rights are removed.
It is an infill that fills the narrow open alley running alongside the rear back-addition of a Victorian or Edwardian terrace — the strip of ground that is usually too small to use. Building over it squares off the ground floor, so a cramped galley kitchen becomes a full-width room. Belgrave's period terraces are ideally suited to it, which is why the side return is one of the borough's most common extensions. Leicester City Council is the decision-maker.
Almost always. A side return is built on or up to the boundary with your neighbour, so the Party Wall etc. Act applies and you must serve notice before work starts — this is entirely separate from Leicester City Council's planning decision. We detail the party-wall junction on the drawings and flag the notice early so a surveyor can be appointed without delaying the build. This applies to your Belgrave address specifically.
Yes, and it is common — the combined L-shape is a wraparound extension. Once the side infill joins a rear projection beyond the permitted-development depth, the whole thing needs a full householder application to Leicester City Council rather than qualifying as permitted development. We draw it as one coherent scheme so the council assesses a single footprint, which reads more clearly than two overlapping proposals. This applies to your Belgrave address specifically.
A householder planning application in Belgrave runs to a statutory eight-week target, and a lawful development certificate to eight weeks as well, though an incomplete pack can stall at validation. Because a side return involves the boundary and roof glazing, a complete, well-detailed submission matters — we prepare it validation-complete and manage officer queries to keep the decision on track. Leicester City Council is the decision-maker.
We price each Belgrave side return individually, because alley width and roof form vary house to house, 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, and we confirm at the outset whether your infill is permitted development or needs an application. Call 020 7864 7245 to start.
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