L-shaped wraparound drawings for Bromley — a full-width rear extension married to the side-return infill so the whole ground floor opens up, drawn to Bromley Council's guidance, delivered in days and revised free until your decision, with a free approval-odds check first.
Bromley Council granted 83% of the householder planning decisions it made in its latest published year — 4 points below the 87% England-wide householder average. Green Belt and large private gardens constrain rear projections across much of the borough, which is where a policy-literate drawing pack earns its keep. Its dominant Victorian (1837–1901), Edwardian (1901–1910), interwar (1918–1939) and postwar (1945–1970) 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 Bromley Council needs a full application. Bromley carries at least one Article 4 direction, and conservation areas including Bromley Town, Chislehurst and Beckenham remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Bromley is determined against an 8-week statutory target.
Bromley (interwar semis around the town centre and Bromley Town conservation area), Beckenham (Victorian and Edwardian villas), Chislehurst (leafy conservation streets with Article 4 controls), Orpington (postwar semi-detached estates), Penge (denser Victorian terraces) and Hayes (1930s houses near the Hayes conservation area) — these are the Bromley pockets our drawings cover most. Heritage designations here include Bromley Town, Chislehurst, Beckenham, Hayes and Keston. Bromley Council weighs each proposal against Bromley Local Plan and the borough's householder design guidance, where hip-to-gable and rear dormers on paired semis are judged on roof bulk and the pair's symmetry. On roofs the borough is hipped roofs on the interwar semis and gabled roofs on the villas, over interwar and postwar semi-detached houses, Victorian villas in Beckenham and detached homes on larger plots.
A wraparound is the ambitious ground-floor move, and Bromley has the stock that suits it — the borough is built largely from interwar and postwar semi-detached houses, Victorian villas in Beckenham and detached homes on larger plots, and the terraces and semis with an L-shaped back addition give you both a side alley to infill and a rear garden to project into. Do both in one L-shaped sweep and the kitchen, dining and living space merge into a single room that runs the full width of the house and out into the garden. Bromley Council assesses the scheme against Bromley Local Plan and the borough's householder design guidance, and because the footprint is large it looks hardest at what survives of the garden.
The drawings carry the argument. We show the retained private amenity space to scale, prove the rear projection sits within the depth the council accepts for the house type, and set the side leg so it clears the boundary and keeps the neighbour's daylight — a wraparound touches two boundaries, not one, so both neighbour relationships are drawn out. Green Belt and large private gardens constrain rear projections across much of the borough, which on a footprint this size is where a scheme is won or lost.
Where Bromley's streets sit in conservation areas — Bromley Town, Chislehurst, Beckenham, Hayes and Keston among them — a wraparound is never permitted development and the design is read against the area's character. Chislehurst and several of Bromley's leafier conservation areas carry Article 4 directions, and large parts of the borough sit within Metropolitan Green Belt where extensions are tightly controlled. We settle the designation before the footprint is fixed.
A wraparound in Bromley almost always needs a full householder application, because joining a side infill to a deep rear extension takes it past permitted-development limits. You will need to apply to Bromley Council if any of these apply — and for a true wraparound, at least one always will:
We draw the L-shaped footprint against the retained garden, the rear depth within the council's limit for your house type and the two neighbour boundaries the side and rear legs touch — the things Bromley Council's officers and both neighbours check — then submit a validation-complete householder application.
Below is Bromley Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Bromley grants a solid majority of householder applications, though Green Belt coverage and the symmetry of paired semis shape what gets approved on many streets. A wraparound stands or falls on the garden it leaves and the two boundaries it meets, so a pack that settles both upfront is decided faster and refused less often than a DIY submission.
Source: MHCLG planning application statistics (householder decisions, rolling year). 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 Bromley, Beckenham and Chislehurst, the approved wraparound is a single-storey L that reads as one considered addition rather than two bolted together: the rear leg kept to the depth the council accepts, the side leg matched to the host brick and roofed with a glazed flat or lantern, and enough garden left to satisfy the borough's private-amenity expectation. On the borough's interwar and postwar semi-detached houses, this is the biggest transformation the ground floor can take in a single application.
Hip-to-gable and rear dormers on paired semis are judged on roof bulk and the pair's symmetry. We size the footprint so the garden that remains still works, keep the eaves and roof low enough to protect both neighbours' light, and present the whole L as a single scheme — which reads far more clearly to Bromley Council than a side return and a rear extension submitted as separate, overlapping proposals.
We draw L-shaped wraparounds on the terraced and semi-detached streets across the borough. A few of the neighbourhoods where Bromley wraparounds come up most often:
Wraparound extension drawings for Bromley's interwar semis around the town centre and Bromley Town conservation area — garden-checked, boundary-detailed and drawn to Bromley Council's guidance.
Wraparound extension drawings for Beckenham's Victorian and Edwardian villas — garden-checked, boundary-detailed and drawn to Bromley Council's guidance.
Wraparound extension drawings for Chislehurst's leafy conservation streets with Article 4 controls — garden-checked, boundary-detailed and drawn to Bromley Council's guidance.
Wraparound extension drawings for Orpington's postwar semi-detached estates — garden-checked, boundary-detailed and drawn to Bromley Council's guidance.
Wraparound extension drawings for Penge's denser Victorian terraces — garden-checked, boundary-detailed and drawn to Bromley Council's guidance.
Wraparound extension drawings for Hayes's 1930s houses near the Hayes conservation area — garden-checked, boundary-detailed and drawn to Bromley Council's guidance.
A wraparound is the two smaller extensions combined — which changes what Bromley Council needs and what the ground floor gains. This is how the options compare.
| Ground-floor option | Permitted development? | What it gains | What Bromley Council checks |
|---|---|---|---|
| Side return only | Sometimes, within width and height limits | Full-width kitchen | Width, roof glazing |
| Rear extension only | Often, within the depth limit | Deeper living space | Rear depth, neighbour daylight |
| Wraparound (side + rear) | No — full application | Largest open-plan ground floor | Combined footprint, garden retained |
| Two-storey wraparound | No — full application | Room above as well as below | Bulk, overlooking, two boundaries |
In conservation areas such as Bromley Town and Chislehurst, a wraparound is never permitted development and always needs a full application.
A fixed process built around how Bromley Council validates and decides wraparound applications — most drawings are submission-ready within seven days of survey.
Send us your Bromley postcode and house type. We confirm your conservation and Article 4 status, measure the garden against the borough's amenity expectation, and score your odds against live Bromley Council decisions.
We measure the side alley, the rear building line, the garden depth and both neighbours' window heights — the numbers the footprint, rear depth and two-boundary daylight tests depend on.
Chartered designers develop the L-shaped extension to your brief, drawn to Bromley Council's extension guidance with the retained garden, rear depth and both boundary junctions detailed on the page.
We submit the householder application, manage validation and case-officer queries, and revise the drawings free until Bromley Council issues its decision.
Almost always. A wraparound joins a side-return infill to a rear extension, and that combination takes the footprint past what permitted development allows, so it needs a full householder application to Bromley Council. Only the rare, very shallow case stays within the limits. On designated land — a conservation area such as Bromley Town and Chislehurst — a wraparound is never permitted development, so an application is certain.
It is an L-shaped extension that fills the side return and wraps around into a full-width rear extension in one continuous sweep, so the kitchen, dining and living space become a single open room the width of the house. Bromley's period terraces and semis with an L-shaped back addition suit it well, which is why the wraparound is the borough's biggest single-storey extension. Bromley Council is the decision-maker.
Bromley Council expects a usable amount of private garden to survive, because a wraparound is the deepest single-storey footprint and takes the most outdoor space. There is no single fixed figure — it is judged on the plot and the borough's amenity guidance — so we draw the retained garden to scale and size the extension around it, rather than maximising the build and hoping it passes.
Usually on both sides. A wraparound touches two boundaries — the side leg runs along one neighbour and the rear leg can affect the other — so the Party Wall etc. Act often applies to each, and notice must be served before work starts. This is separate from Bromley Council's planning decision. We detail both boundary junctions on the drawings and flag the notices early so surveyors can be appointed without delaying the build.
Built as one project it usually is, and it reads better to Bromley Council too. A single wraparound application covers the whole L-shaped footprint in one decision rather than two overlapping submissions, and the build shares one set of foundations, one roof and one disruption. We draw it as a single coherent scheme so the council assesses one clear proposal instead of piecing two together.
We price each Bromley wraparound individually, because garden depth, side-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 Bromley Council approves, and we confirm the retained-garden and boundary position at the outset. Call 020 7864 7245 to start.
Answer five quick questions and get a free planning score for your exact address — instantly. Then, if you want the full picture, unlock the detailed analysis: your council's live approval rates, local precedents, constraints on your street and a step-by-step route to permission.
Same fixed quotes, same fast drawings — wherever your project is.