Kitchen Extensions in Balham
Balham's Victorian terraces have the same layout repeated street after street: narrow kitchen at the back, unused side passage, garden that could give you the space you need. We turn them into open-plan kitchen-diners that work for how families actually live. Side returns, rear extensions, or both together.
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Why Balham Kitchens Need Extending
Balham has changed a lot in the past twenty years. The housing stock hasn’t. The Victorian terraces between the High Road and Wandsworth Common were built in the 1890s with small sculleries at the back, designed when kitchens were for cooking, not living.
Now those same houses sell for over a million pounds, bought by families who want to actually use the ground floor. The reception rooms are fine. The garden is decent. But the kitchen is a narrow corridor where two people can’t pass each other without someone flattening against the counter.
The solution is usually obvious once you look at it. That passage down the side of the house, currently home to bins and a forgotten bicycle? That’s 8–12 square metres of wasted space. Fill it in with a side return extension and the kitchen doubles in width. Push out into the garden by three metres and you have room for an island, a table, somewhere to sit that isn’t the sofa.
We’ve built extensions across Balham for years. From the streets around Nightingale Lane to the terraces off Cavendish Road, from Balham Park Road to the borders of Tooting and Clapham. We know what Wandsworth planning expects, how to deal with party walls when you’ve got neighbours on both sides, and how to get materials into sites where there’s no rear access.
Extension Types
Extension Options for Balham Terraces
Return Extensions
Extend straight out into the garden, typically 3–4 metres. Creates a kitchen-diner with bi-fold or sliding doors opening onto the garden. Balham gardens are reasonable for London, usually 10–15 metres deep, so you can add space without losing the whole lawn. Works well on its own or combined with a side return.
Side Return Extensions
The classic Balham extension. Fill in the side passage to make the kitchen significantly wider. Most Balham terraces have a return of 1–1.5 metres, giving you 8–12m² of extra space. A rooflight along the length brings natural light into the middle of the house. Usually falls under Permitted Development, so no planning application needed.
Combined Side Return + Rear
The most popular choice. Extend into the side return and push out at the back. Creates an L-shaped kitchen that wraps around the original house. You get the width from the side return and the depth from the rear extension. Usually the best balance of cost and space gained.
Kitchen-Diner Knock-Through
Remove the wall between kitchen and dining room, install a structural steel, and you have open-plan living without extending. A good first step if you’re not sure whether open-plan suits you, or if your garden is too small to sacrifice. Can always extend later if you want more space.
10-15%
Added to property value (RICS)
89%
Planning approval rate (DLUHC)
10-14
Weeks typical build time
78%
Of homeowners prefer extending to moving
"We looked at several builders before choosing All Well. What made the difference was that they actually listened to how we wanted to use the space rather than just showing us what they'd done before. The side return and rear extension gave us exactly the kitchen-diner we needed. Our daughter does homework at the island while we cook, we can host properly now, and the bi-folds mean we basically live in the garden during summer. Build was on time, site was kept tidy, and the finish is excellent."
Kitchen Extension Costs in Dulwich
Realistic pricing for Dulwich projects so you can budget properly.
| Project Type | Typical Size | Typical Price Range |
|---|---|---|
|
Side return extension |
8-12m2 |
£38,000 – £55,000 |
|
Rear extension (3-4m depth) |
12-18m2 |
£50,000 – £80,000 |
|
Combined side return + rear |
18-28m2 |
£70,000 – £105,000 |
|
Wraparound extension |
25-40m2 |
£95,000 – £140,000 |
|
Two-storey rear extension |
30-50m2 (total) |
£95,000-£150,000 |
How It Works
From first conversation to your new kitchen, here’s the process for Dulwich extensions.
Common Questions About Balham Extensions
Balham falls within Wandsworth council. The whole area between Clapham Common and Tooting is Wandsworth, so there’s no boundary confusion like some parts of South London. Wandsworth has a straightforward planning process for householder applications, typically deciding within 8 weeks.
Most rear extensions up to 3m (4m for detached) and side return extensions fall under Permitted Development, meaning no planning application is needed. You may still need a Lawful Development Certificate to confirm this, which we can arrange. There are a few conservation area pockets in Balham where rules differ, but most streets aren’t affected.
Balham terraces share walls with neighbours on both sides, so party wall notices are almost always required. You serve notice at least two months before work starts. Most neighbours consent quickly because extensions are common in the area. If they want their own surveyor, factor in £700–£1,500 per neighbour and 6–8 weeks extra. We handle the notices and can recommend surveyors.
Most don’t. The Victorian terraces were built without back lanes, so materials typically come through the house. Some streets towards Wandsworth Common have rear access, and a few properties have side gates wide enough for deliveries. We assess this during the site visit and plan accordingly.
Most extensions take 10–12 weeks to build. Add 8–10 weeks beforehand for Building Regulations and party wall agreements. If planning permission is needed, add another 8 weeks. We provide a detailed timeline at the quote stage.
RICS research suggests 10–15% for a kitchen extension. In Balham, where extended houses command a clear premium over unextended ones, you’re typically at the higher end of that range. A £75,000 extension on a £1.1m house could add £110,000–£165,000, though this depends on finish quality and how well the design works with the house.
Building Extensions in Balham
Balham sits entirely within Wandsworth, which makes planning straightforward. Wandsworth’s planning department handles a lot of householder applications because the borough is full of Victorian and Edwardian terraces that people want to extend. They know what to expect and process applications efficiently.
The housing stock is consistent. Almost all of Balham between the High Road and Wandsworth Common is Victorian terraces, built between 1880 and 1900. Three storeys, bay windows at the front, narrow passage down one side, garden at the back. The layout repeats with minor variations street after street. This consistency is actually helpful because what works on one house generally works on the next.
Parking is permit-controlled and competitive. Finding a space on Boundaries Road or Ramsden Road during the day isn’t easy. We arrange permits for works vehicles before starting and coordinate deliveries to minimise disruption. Skip permits through Wandsworth take about a week.
Access without rear lanes means materials come through the house for most Balham builds. We protect floors and doorways, schedule deliveries to minimise the window when you’re stepping over building materials, and keep the site as tidy as possible. It’s more work than having rear access, but it’s how most Balham extensions get built.
One thing Balham has going for it: extensions are so common that your neighbours have probably seen several happen on the street. They know the process, they know the disruption is temporary, and party wall discussions tend to be straightforward.
Nearby Areas We Cover
We build kitchen extensions across South West London:
Clapham
Tooting
Wandsworth
Brixton
Battersea
Wimbledon
Streatham
Putney
RReady to Discuss Your Balham Extension?
Get a free consultation with no obligation. We’ll visit your property, look at the options, and give you an honest assessment of what’s possible.