Clapham to Kennington: Lambeth has 64 conservation areas
Sixty-four conservation areas cover much of the borough. What designation takes away, how a heritage statement earns its keep, and which alterations survive it without needing a full submission.
A great deal, on two registers at once. The national conservation-area register records 65 areas covering about 863 hectares, and Lambeth also holds 223 Article 4 areas — the third highest of the sixteen London boroughs in the national register. Both remove permitted development rights, and they do not overlap neatly.
Measure
Lambeth
London
Conservation areas (national register)
65
1,141
Area covered
863 hectares
—
Article 4 areas in the register
223
third of the 16 boroughs in the Article 4 register
Listed buildings in the register
950
—
Tree preservation zones in the register
226
—
Householder approval rate
80.1%
83.0%
Householder appeals allowed after refusal
41.2% of 313
40.8% of 13,067
Sources: registers from the MHCLG Planning Data Platform, retrieved 1 September 2026, excluding revoked and superseded entries, with hectares computed from the published boundaries; decision figures from MHCLG PS1 and PS2, twelve quarters to March 2026; appeals from Planning Inspectorate casework decided 2016–2026. Counts published by the council itself sometimes differ by one or two, usually because the register holds a boundary revision as a separate entry.
How spread out is conservation area cover across Lambeth?
Lambeth is a borough where checking beats guessing, and this map is built for that. It carries the designated conservation area boundaries and, as a separate layer, the Article 4 direction areas, both from the national register, and a postcode you type is resolved against them locally rather than sent away to be answered. What it will not do is settle a marginal address. The boundaries are stored as simplified shapes, so on the edge of an area the difference between inside and outside belongs to Lambeth’s own adopted boundary and not to a drawing.
Lambeth has no dominant conservation area, and that changes how you should use the map. Its designations total 863 hectares, and the largest of them, Clapham, takes 82.4 of those — under a tenth of the borough’s protected land, where elsewhere in London a single area can account for close to half. Cover is spread instead across many middling areas, running down to Hackford Road at 0.3 hectares. So an address here is genuinely hard to place by eye: there is no one great block to be obviously inside or obviously outside, and neighbours a few streets apart can be in quite different positions. The volume in this borough sits in the other layer. The register holds 218 Article 4 direction areas for Lambeth, an order of magnitude beyond the number of conservation areas it holds, and they are drawn separately here for exactly that reason — each withdraws a specific permitted development right within its own outline, and they do not trace the conservation boundaries. Two things the record cannot give you. No Lambeth area has a council document filed against it in the national register, so the written appraisal a case officer will judge a scheme against exists only in the council’s own library and is worth requesting early. And no designation date is recorded for any area in the borough.
The 218 direction areas, the conservation boundaries and every hectare figure above are from planning.data.gov.uk, in its article-4-direction-area and conservation-area datasets, as pulled on 15 August 2026 and confirmed on 1 September 2026. Contains public sector information licensed under the Open Government Licence v3.0
In detail
Answers for Lambeth
How many conservation areas does Lambeth have?
Sixty-four areas carry designation — Brockwell Park, Brixton Road, Streatham Hill, Kennington, Herne Hill and Clapham Common among them. Two figures explain why the framing of an application here matters: the council refused 26.0% of its minor development decisions — 599 refusals out of 2,303 between April 2023 and March 2026 — but only 19.9% of householder ones, 346 out of 1,736. The same roof extension argued as a householder alteration and argued as a minor development is the same building work meeting two visibly different bars. Where officers do refuse and the case goes to appeal, the Inspectorate allowed 129 of 313 householder appeals from Lambeth across the decade of decisions ending June 2026, and 11 of the 38 that turned on listed building or conservation-area grounds. Source: Planning Inspectorate appeal decisions
What changes need planning in a Lambeth conservation area?
Any external alteration visible from a public space typically requires full planning permission inside a conservation area: roof additions, dormers, replacement windows, rendering, hardstanding, and demolition. Internal works generally do not, unless the property is also listed.
Do I need a Heritage Statement in Lambeth?
Yes, and its quality decides the case more often than the drawings do. It needs to answer the character appraisal published for that particular area, identify the heritage assets involved, and demonstrate that the proposal preserves or enhances whatever designation was meant to protect. Every conservation-area submission we make includes one written for that area, not a generic template.
Can I have a roof extension or mansard in a Lambeth conservation area?
Rear mansards and rear dormers do get permitted inside designated areas across the borough, so long as the new roof follows the geometry already running along the terrace. Anything on the front plane is a different matter: forward-facing dormers in a designated street are refused as a near-rule, because the front elevation is the part of the building the appraisal is actually about.
How long does conservation area approval take in Lambeth?
The statutory determination period for a householder application is eight weeks. Heritage consultation in practice adds two to three on top, so between validation and a decision, eleven to fourteen weeks is the realistic assumption. Worth knowing too that 693 of the borough's 1,736 householder decisions across 2023-24 to 2025-26 ran under an agreed extension of time, so the clock is negotiated more often here than the statutory figure suggests. Source: MHCLG live planning statistics
Planning application setExisting, proposed and location plans on one sheet — as the council receives it through the Planning Portal.
Measured surveyEvery dimension recorded on site in a measured survey before a line of the proposal is drawn.
A london terraced street of the type we survey — conservation area planning in Lambeth.
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Which Lambeth postcodes does this conservation area application service cover?
The districts covered here, what each is built of, and who validates a designated-area submission once the address is known. Figures in the fee column are 2026 statutory England application charges — the council's price for considering a case, unrelated to design or build cost.
Postcode
Area
Dominant stock
What it means for a conservation area application
SE5
Camberwell
Georgian villas, Victorian terraces
Camberwell in SE5 spans the Southwark line, with roughly four sales in five recorded on the Southwark side. Check the address against the policies map before assuming Lambeth handles it.
SE19
Upper Norwood / Crystal Palace
Victorian villas, Edwardian terraces
SE19 is divided between Croydon and Lambeth around Upper Norwood and Crystal Palace, and about half the district's recorded property sales sit outside Lambeth. Settle which authority validates before the drawings are packaged.
SE21
Dulwich Village
Georgian villas, Edwardian villas (Dulwich Estate)
SE21 at Dulwich Village falls partly to Southwark and partly to Lambeth. The line cuts across the middle of the district, so it is the address that decides, never the postcode.
SW12
Balham
Victorian and Edwardian terraces
SW12 at Balham is split with Wandsworth. Because either council may determine the case, we read the address against both policies maps before advising on route or timescale.
SE11
Kennington / Vauxhall
Georgian terraces, post-war estates
SE11 runs through Kennington and Vauxhall and sits entirely within the borough — one authority, one set of policies, and a dense concentration of designated Georgian and early Victorian terraces.
SE24
Herne Hill
Victorian villas, Edwardian terraces
Herne Hill in SE24 is shared with Southwark. Confirm the determining authority first — the two councils apply different local policies to the same kind of roof alteration.
SE27
West Norwood / Tulse Hill
Victorian terraces, Edwardian villas
SE27, covering West Norwood and Tulse Hill, lies wholly inside the borough. Lambeth alone determines it, and no boundary question needs resolving before the drawings go in.
SW2
Brixton Hill / Tulse Hill
Victorian terraces, post-war estates
A conservation area application at an SW2 address in Brixton Hill / Tulse Hill is determined by Lambeth Council under its own Local Plan policies for Brixton Hill / Tulse Hill.
How does a conservation area application differ street by street across Lambeth?
Wall construction, roof pitch and the depth of the rear plot all shift within a few streets here, and designation only tightens the consequences: what a scheme can achieve on Streatham Hill is not what the same brief achieves off Kennington Road.
Clapham (SW4) — Victorian terraces around the common defines Clapham, where victorian terraces, edwardian villas set what a conservation area application can do. Most applications on these Victorian streets are householder applications validated on existing and proposed plans across SW4. Any Clapham conservation area application is validated by Lambeth Council, with Clapham Common the usual Clapham reference point on the site plan.
Brixton (SW2, SW9) — Victorian terraces, vibrant centre defines Brixton, where victorian terraces, post-war estates set what a conservation area application can do. Most applications on these Victorian streets are householder applications validated on existing and proposed plans across SW2. Any Brixton conservation area application is validated by Lambeth Council, with Brixton Market the usual Brixton reference point on the site plan.
Herne Hill (SE24) — a conservation area application in Herne Hill starts from victorian villas, edwardian terraces, and Herne Hill reads as Victorian villas around Brockwell Park. Most applications on these Victorian streets are householder applications validated on existing and proposed plans in SE24. Lambeth Council assesses Herne Hill conservation area applications against its own Herne Hill character guidance, and the location plan we draw for Herne Hill references Brockwell Park.
Kennington (SE11) — Georgian terraces, Regency squares defines Kennington, where georgian terraces, post-war estates set what a conservation area application can do. Applications on Georgian stock here almost always need a heritage statement alongside the drawings across SE11. Any Kennington conservation area application is validated by Lambeth Council, with Kennington Park the usual Kennington reference point on the site plan.
Streatham (SW16) — a conservation area application in Streatham starts from edwardian terraces, post-war flats, and Streatham reads as Edwardian terraces, post-war flats. Edwardian houses here typically need the same householder set plus a roof plan where a dormer is proposed in SW16. Lambeth Council assesses Streatham conservation area applications against its own Streatham character guidance, and the location plan we draw for Streatham references Streatham High Road.
Stockwell (SW9) — conservation area application work in Stockwell means victorian terraces, post-war estates. Stockwell is Victorian terraces, post-war estates. Most applications on these Victorian streets are householder applications validated on existing and proposed plans throughout SW9. Lambeth Council decides the Stockwell application, and Stockwell station anchors the Stockwell location plan.
Vauxhall (SE11, SW8) — Regency fragments, riverside new-build defines Vauxhall, where regency terraces, modern apartments, post-war flats set what a conservation area application can do. Post-war stock here frequently sits inside an estate layout across SE11. Any Vauxhall conservation area application is validated by Lambeth Council, with Vauxhall Bridge the usual Vauxhall reference point on the site plan.
Does Lambeth planning policy restrict a conservation area application?
What designation actually changes: inside any of the 64 areas the council lists — Streatham Hill, Clapham Common and Herne Hill among them — permitted development stops being available for the alterations that matter, so what would have been a six-week £249 prior approval becomes an eight-week £548 householder application. Where a building is also listed, the second consent gets harder still: 392 of 486 listed building consents for alterations and extensions were granted here across twelve consecutive quarters of returns ending last March, or 80.7%, where the 33 boroughs pooled granted 91.2%. Contains public sector information licensed under the Open Government Licence v3.0
What Article 4 removes near Lambeth: Borough-wide Article 4 for HMO conversions; plus office-to-residential restrictions. Before pricing a conservation area application we check whether the SE11 address is inside the mapped area, because Lambeth Council draws the Lambeth boundary street by street rather than across the whole of Lambeth.
Lambeth housing stock: Victorian terraces in Clapham, Brixton, Herne Hill; Edwardian villas; 1930s and post-war estates in parts of Streatham; Georgian in Kennington. Mix of dense Victorian residential and post-war estate; strong conservation area coverage; generally design-led planning decisions. Read that before choosing a conservation area application route in Lambeth — construction, not postcode, sets what is achievable.
What happens if a Lambeth property sits on a boundary?
Southwark — cross the Lambeth boundary and Southwark Council takes the conservation area application instead, applying 43 conservation areas of its own around SE1. We re-price conservation area applications at the Lambeth edge because Southwark policy and Lambeth policy rarely align on conservation area application depth.
Wandsworth — the Wandsworth boundary runs against Lambeth, so a conservation area application a street from Lambeth is decided by Wandsworth Council instead. Wandsworth runs 45 conservation areas across SW8 and its neighbours, which is why conservation area applications priced for Lambeth are re-checked against Wandsworth policy whenever the Lambeth address sits on that edge.
Croydon — the Croydon boundary runs against Lambeth, so a conservation area application a street from Lambeth is decided by Croydon Council instead. Croydon runs 24 conservation areas across CR0 and its neighbours, which is why conservation area applications priced for Lambeth are re-checked against Croydon policy whenever the Lambeth address sits on that edge.
Merton — cross the Lambeth boundary and Merton Council takes the conservation area application instead, applying 28 conservation areas of its own around SW16. We re-price conservation area applications at the Lambeth edge because Merton policy and Lambeth policy rarely align on conservation area application depth.
Sources for this Lambeth conservation area application page: borough policies maps and
conservation-area registers (2025–26), Royal Mail postcode district boundaries,
the Town and Country Planning (Fees for Applications) (England) Regulations, the Town
and Country Planning (General Permitted Development) (England) Order 2015 as amended,
and the Party Wall etc. Act 1996.
The planning set that goes to the council through the Planning Portal: proposed elevations, plans, and the OS location plan with your site outlined.
