Southwark approves 93.8% of householder applications

Is Southwark as permissive as its approval rate suggests?

On applications, yes: 93.8% approved, with just 100 refusals from 1,617 householder decisions. The constraint sits earlier. Southwark holds 480 Article 4 areas in the national register, second only to Waltham Forest, so more work needs an application in the first place.

Sources: decision figures from MHCLG District Planning Application Statistics (PS1 and PS2), twelve quarters to March 2026; registers from the MHCLG Planning Data Platform, retrieved 1 September 2026; appeals from Planning Inspectorate casework decided 2016–2026. Southwark’s 28.6% householder appeal-allowed rate is the second lowest in London, so the small number of refusals it does issue tend to stand.

Planning in Southwark — what you need to know

Southwark refused 100 householder applications in three years, out of 1,617 (MHCLG planning statistics, retrieved 1 September 2026). At 93.8% approval that is the second-highest rate in London, and it holds for new units too: 88.0% of minor dwelling schemes were approved. If your project is ordinary and your drawings are competent, the base rate in this borough is strongly in your favour — which makes it worth understanding the one structure that sits outside all of it.

Dulwich Estate private planning scheme affects much of SE21 and SE22; Southwark planning for rest of borough; strong heritage context. The borough has a population of approximately 318,000 residents and covers postcodes SE1, SE5, SE15, SE16, SE17, SE21, SE22.

The housing stock in Southwark is predominantly georgian and Regency in Bermondsey and Borough; Victorian terraces in Camberwell and Peckham; Dulwich Estate controlled housing; riverside new-build. This mix of property types means that Southwark Council deals with a wide range of applications, from rear extensions on terraced houses to loft conversions on semi-detached properties and full refurbishments of period homes in conservation areas.

With 43 designated conservation areas and active Article 4 Directions, Southwark has a relatively controlled planning environment where Permitted Development rights may be restricted in many areas.

At Architectural Drawings London, we prepare planning drawings and building regulations drawings for properties across all Southwark postcodes. Our MCIAT chartered architectural technologists have experience with Southwark Council and understand the specific policies, design guides, and precedents that apply in Southwark.

Where do Southwark’s 480 Article 4 areas apply?

Southwark has Article 4 Directions in place that remove certain Permitted Development rights. Article 4 for HMOs borough-wide; additional Article 4 for office-to-residential in Bermondsey and Elephant & Castle.

Article 4 Directions are used by councils to protect the character of an area by requiring planning permission for changes that would otherwise be permitted. If your property is affected by an Article 4 Direction in Southwark, you will need to submit a full planning application even for works that would normally fall under Permitted Development. The council fee for a householder application is £548, and we prepare the necessary drawings and supporting documents.

It is important to note that Article 4 Directions in Southwark are separate from conservation area restrictions. A property can be affected by both, and in practice many Article 4 areas overlap with conservation areas. We check the specific restrictions affecting your property as part of our initial assessment.

How many conservation areas does Southwark have?

Southwark has 43 designated conservation areas. Notable conservation areas include:

• Camberwell Grove
• Bermondsey Street
• Dulwich Village
• Peckham Rye
• Borough

In conservation areas, Permitted Development rights are more restricted than in non-designated areas. Key restrictions include:

• No cladding, stone, artificial stone, pebble dash, render, timber, plastic, or tile to any external wall without planning permission
• No side extensions under Permitted Development
• Rear extensions are limited and may require planning permission
• Dormer loft conversions facing the highway require planning permission
• Satellite dishes on front elevations or chimneys are not permitted
• Demolition of gates, walls, fences, or other boundary treatment requires planning permission

Forty-three conservation areas and an Article 4 Direction, over a borough that is otherwise permissive. Southwark also decides a slightly larger share of applications at committee than most London councils: 91.9% were delegated to officers, third-lowest in London (MHCLG planning statistics, retrieved 1 September 2026). That matters because a committee decision is a public one, with objectors able to speak, and it is the route a contested conservation-area scheme is most likely to take.

Popular projects in Southwark

Much of SE21 and SE22 falls under the Dulwich Estate's scheme of management, a private consent regime that runs alongside the council's and is not replaced by it. A planning permission from Southwark does not discharge it, and the Estate applies its own design standards on its own timetable. Elsewhere — Camberwell and Peckham's Victorian terraces, the Georgian stock around Bermondsey and Borough — the council is the only consent you need.

Loft conversions

Southwark has extensive streets of terraced housing, making loft conversions one of the most popular home improvement projects in the borough. A rear dormer loft conversion on a typical Victorian or Edwardian mid-terrace can add 20-30 square metres of living space and significant value to the property. In many cases, rear dormers fall under Permitted Development rights, though properties in conservation areas or subject to Article 4 Directions will need full planning permission. We prepare loft conversion drawings for properties across Southwark.

Side-return and rear extensions

The classic Victorian and Edwardian terrace layout in Southwark leaves a side return passage that is prime territory for a kitchen extension. A single-storey rear or side-return extension can often be built under Permitted Development, extending up to 6 metres from the rear wall (or up to 8 metres for detached houses under the Prior Approval process). We prepare extension plans for properties across all Southwark postcodes (SE1, SE5, SE15, SE16, SE17, SE21, SE22).

Flat conversions and internal alterations

With mansion blocks and converted flats forming part of Southwark's housing stock, internal layout changes and flat conversions are common projects. While internal alterations rarely need planning permission, converting a house to flats (C3 to C4 HMO) or vice versa may require planning approval, particularly given Southwark's Article 4 Direction covering HMO conversions. We can prepare the necessary floor plans, elevations, and supporting documents for flat conversion applications in Southwark.

How much do planning drawings cost in Southwark?

Council charges run to £548 on a householder submission and £274 to certify lawfulness, and Southwark issued 604 of the latter across the window (MHCLG planning statistics, retrieved 1 September 2026). On a Dulwich Estate address, budget for the Estate's own fee and review period as a separate item — it is the cost most often missed on this side of the borough. Our drawing fee is a fixed figure agreed up front, near 30% under the London architect rate.

We include a measured survey, existing and proposed plans, elevations, and a site plan — everything required for a valid planning submission to Southwark Council. Our fees are 30% below typical London architect rates for the same scope of work.

Southwark issued 604 certificates of lawful development in three years (MHCLG planning statistics, retrieved 1 September 2026), held down by the Article 4 Direction and 43 conservation areas. On a Dulwich Estate property the certificate is worth less than the count implies: it addresses the planning position only and says nothing about the Estate's consent, which is the one that stops work.

Our experience in Southwark

We cover all Southwark postcodes: SE1, SE5, SE15, SE16, SE17, SE21, SE22. Whether your property is in a conservation area, affected by an Article 4 Direction, or in an unrestricted residential street, we have experience with Southwark Council and understand the borough's planning policies.

Our MCIAT chartered architectural technologists prepare planning drawings and building regulations drawings for residential projects across Southwark. We handle the full process from initial measured survey through to planning submission, and we liaise with Southwark Council on your behalf.

We also work in Southwark's neighbouring boroughs:

What are the odds of approval in Southwark?

93.8%of householder applications approved in Southwark

1,617householder decisions in three years

95.8%decided within eight weeks

604certificates of lawful development issued

The odds in Southwark are better than the London average. The council decided 1,617 householder applications in the three years to March 2026 and approved 1,517 of them — 93.8%, against 83.0% across London. Only 100 were refused. That is not a reason to be casual: a refusal still costs eight weeks and a resubmission, and the applications that fail here tend to fail on the same avoidable points — missing or inconsistent drawings, and a scheme that ignores the immediate context.

Speed is not the problem here. Southwark decided 95.8% of householder applications within the statutory eight weeks. If your project has a fixed start date, the determination period is the predictable part of the programme — the variable is how long the drawings take before submission.

Too few larger-extension prior approvals have been determined in Southwark in this window to quote a rate. Where the numbers are thin, the prior-approval route is worth checking on its merits rather than on local precedent.

The council also issued 604 certificates of lawful development in the same three years. That is the route for work that is already permitted development: it is not a permission, it is proof you did not need one, and it costs £274 against the £548 householder application fee.

Source: MHCLG District Planning Application Statistics (PS1 and PS2), the statutory return every English planning authority files. Figures cover the twelve quarters to March 2026 and are decisions made in that window, not applications submitted. Published under the Open Government Licence v3.0.

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