Most Southwark homeowners start with a simple question: how much will planning permission cost me? The answer they find — £548 for a householder application — feels reassuringly concrete. It isn't the whole picture, and the gap between that number and the real total is where projects get expensive.
The short version
- The statutory householder application fee in Southwark is £548, but that's rarely your only cost
- Conservation areas, Article 4 Directions, and the Dulwich Estate Scheme of Management can fundamentally change what's required
- Your property's specific combination of constraints determines your actual exposure — and most homeowners don't realise how layered that can get
The £548 is just the entry ticket
The application fee covers the council processing your submission. It doesn't cover the drawings, the planning consultant, the structural engineer's letter, the heritage statement a conservation officer might request, or a second application if the first one fails. And unlike some costs, the application fee is non-refundable — whether your application is approved, refused, or withdrawn before a decision is made.
Southwark's typical decision window is 8 weeks. But delays happen, and if your application goes to appeal, you're looking at a timeline — and a cost — that most people never budgeted for. Until you see what applies to your exact property — free, in about a minute, it's genuinely hard to know which of these scenarios is likely for you.
Southwark's constraint landscape is unusually complex
Southwark has conservation areas covering Borough, Bermondsey, Dulwich Village, Herne Hill, and Peckham Rye, among others. Listed buildings cluster along the Thames frontage and around Southwark Cathedral. Flood zones apply near the river. Article 4 Directions remove permitted development rights from many Victorian terraces across the borough.
Each of these layers can change what your project requires — sometimes a heritage statement, sometimes additional surveys, sometimes a completely different application type. Being in a conservation area tells you something. Knowing what it means for your specific extension, loft conversion, or outbuilding is a different question entirely.
Then there's Dulwich Village, which operates under the Dulwich Estate Scheme of Management — a private consent layer that sits on top of standard planning. Most homeowners don't realise this exists until they're already mid-project. The best way to know whether it applies to your address is to check how your property's specific constraints interact before you commit to anything.
What neighbours paid — and what happened to their applications
The fee is fixed. Everything else varies by property, street, and project type. A rear extension on one SE22 street might sail through. The same project two roads away, with a different conservation area boundary or a tighter Article 4 Direction, might require a full application, a heritage assessment, and a planning consultant's involvement from day one.
Don't assume precedent
A neighbour getting approval for a similar project doesn't mean you'll get the same result. Officers assess each application individually, and small differences in plot size, frontage, or constraint status can change the outcome entirely.
The soft costs — consultants, drawings, surveys, statements — often exceed the application fee itself. And they're harder to recover if things go wrong. Knowing your approval odds before you spend anything is the kind of intelligence most homeowners don't think to look for until it's too late.
WhatCanIBuild pulls together what's been approved and refused near your address, what similar projects on your street actually cost to get through, and what your property's specific constraint mix means for your chances — see the approval record for your street and what it means for your odds — free, no signup.
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