Area guide · N16
House Extensions in Stoke Newington (N16)
Planning a house extension in Stoke Newington? We design, gain planning permission and build extensions and loft conversions across N16, from Church Street to the streets around Clissold Park. Most single-storey rear extensions here cost £50,000–£100,000 to build, applications go through Hackney Council, and the signature local scheme is the glazed side-return extension, because so many N16 terraces have the narrow side alley it fills. Invite us round for a free site visit and we'll talk you through what your terrace can take.
Planning in Stoke Newington
What Hackney looks for before it approves an N16 extension
Every householder application in N16 goes to Hackney Council, and the decisions below come from its Stoke Newington and Clissold wards. Its planners look closely at rooflines, glazing proportions and materials, particularly in and around the conservation areas, and the practical lesson is simple — schemes that respect the terrace go through; speculative ones get worn down. We design firmly to the first category.
Read the list for the shape of N16 work. Glazed side infills and wrap-arounds reclaim the alley beside the kitchen, and a good share of the roof work isn't on the main roof at all: it sits over the back addition, where an outrigger roof extension lifts the rear wing to make room for a bathroom or a second loft room. On a house outside the conservation areas, that kind of roof work can often be certificated as permitted development rather than argued through a full application. Mansards and roof terraces are a different matter, and go in as full applications judged on the roofline of the whole terrace.
Recent planning decisions around Stoke Newington
Extension, loft and basement applications decided in Hackney's Stoke Newington and Clissold wards, 23 Sep 2025 to 22 Sep 2026.
The newest decisions in those wards
- ApprovedSep 2026
Dumont Road, N16
Erection of a lower ground, rear wrap-around side extension with the installation of rooftop PVs and a new ASHP to the rear garden.
2026/1048 · Hackney CouncilHouseholder application
- ApprovedSep 2026
Winston Road, N16
Erection of a mansard roof extension, rear outrigger roof extension, ground floor, single storey wrap around extension
2026/1518 · Hackney CouncilHouseholder application
- ApprovedSep 2026
Albion Road, N16
Erection of a rear roof extension and insertion of 2 x rooflights to the front roof slope.
2026/1353 · Hackney CouncilLawful development certificate
- ApprovedAug 2026
Manor Road, N16
Erection of two single storey rear extensions 1 x 6m by 3m high and 1 x 5.86m by 3m high.
2026/1545 · Hackney CouncilPrior approval, larger home extension
- ApprovedAug 2026
Albion Grove, N16
Erection of a roof extension and formation of a roof terrace and third floor level; elevational alterations
2026/1450 · Hackney CouncilHouseholder application
- ApprovedAug 2026
Barbauld Road, N16
Proposed erection of a rear outrigger roof extension.
2026/1462 · Hackney CouncilLawful development certificate
- ApprovedAug 2026
Harcombe Road, N16
Erection of a rear ground-floor side infill extension and the installation of a bike storage shed in the front garden.
2026/1230 · Hackney CouncilHouseholder application
- ApprovedAug 2026
Hawksley Road, N16
Erection of a single storey extension above existing rear outrigger roof.
2026/1434 · Hackney CouncilHouseholder application
Source: GLA Planning London Datahub, 23 Sep 2025 – 22 Sep 2026. Data updated September 2026. This list last changed 23 September 2026. The datahub can lag a council’s own register by a few weeks.
These are council decisions on applications in these wards, shown as local planning context. They are not necessarily projects undertaken by us, and they are not our approval rate. Planning outcomes depend on your specific property and proposal.
Local knowledge
Stoke Newington's housing stock — and what works on each
Church Street, the High Street and Clissold Park. The village heart of Stokey sits inside two conservation areas. The Stoke Newington conservation area, designated in 1983, runs from Clissold Park along Church Street and takes in substantial parts of the High Street and the whole of Abney Park Cemetery; Hackney describes it as mainly commercial, with some housing and a number of listed buildings. The Clissold Park conservation area, designated in 1969, covers the park, the two parish churches, the Town Hall and the listed buildings beside them. Two more, both designated in 2004, reach into Clissold ward: Newington Green (North) at its southern edge and Lordship Park on its northern edge, and they bring the same restrictions. Inside any of them, side extensions, dormers and the larger-home route need planning permission, so extensions go through full applications with conservation-literate design: matched brickwork, carefully proportioned glazing, rooflights over dormers where the roofscape is sensitive. That's a service, not a problem. Hackney's own Article 4 page points householders to St Mark's and De Beauvoir for its conservation-area directions on houses; neither is in N16.
The Victorian terrace grid. The rest of N16 is street after street of flat- and bay-fronted Victorian terraces with side alleys — the perfect canvas for the glazed side-return (£40,000–£75,000): steel in, side wall opened, glass roof over, and the galley kitchen becomes a light-flooded kitchen-diner across the full width of the house. Add a rear extension and it becomes a wrap-around (£80,000–£160,000) — the full Stokey kitchen, with layouts and glazing options set out in our kitchen extensions guide.
The lofts. The other staple is the rear dormer loft conversion (£60,000–£100,000) — a double bedroom and en-suite in the roof, with the dormer hidden from the street. Outside the conservation areas, most proceed under permitted development's generous volume allowance.
Flats and maisonettes. A large share of N16's houses are converted into flats. Honesty first: flats and maisonettes have no householder permitted development rights, so any extension needs a full planning application. Done well, they get approved — it just changes the route and the timeline, not the outcome.
Every street is different. That's the point.
We design to Stoke Newington's stock and to what the council demonstrably approves — not to a template. A free site visit tells you what your house can take.
Get my free estimateHonest numbers
What a house extension costs in Stoke Newington in 2026
These are realistic all-in build ranges for N16 — labour and materials to a good standard, excluding VAT, professional fees and kitchen fit-out:
| Extension type | North London baseline, adjusted for N16 | On-site time | Usual planning route |
|---|---|---|---|
| Side-return extension | £40,000 – £75,000 | 2–3 months | Often permitted development |
| Single-storey rear | £50,000 – £100,000 | 3–4 months | Often permitted development |
| Kitchen extension (incl. mid-range kitchen) | £60,000 – £125,000 | 3–4 months | Often permitted development |
| Hip-to-gable loft + rear dormer | £60,000 – £100,000 | 6–10 weeks | Usually permitted development |
| Wrap-around extension | £80,000 – £160,000 | 4–6 months | Full application |
| Double-storey rear | £85,000 – £180,000 | 5–7 months | Full application |
| Garage conversion | £20,000 – £40,000 | 4–6 weeks | Usually permitted development |
Stoke Newington build costs run £3,100–£4,800 per square metre — a 10–15% premium on the wider North London rate of £2,800–£4,200/m². The reasons are practical: tight terrace access (materials often come through the house), period detailing that's worth matching properly, and a local finish expectation that leans high-spec. Note too that inside N16's conservation areas, permitted development rights are restricted — so routes marked "often permitted development" above become full applications there. Our pricing works one way: free site visit first, then a fixed, itemised quote whose bottom line doesn't move between signing and final payment.
Permissions, handled
Planning permission in Stoke Newington — what you need to know
Outside the conservation areas, the default permitted development allowance is a 3m-deep single-storey rear on terraces and semis, or 4m on detached houses — and prior approval under the larger home scheme can carry those to 6m and 8m. Loft conversions enjoy a generous volume allowance — which is why rear dormers are everywhere in N16.
Inside the Stoke Newington, Clissold Park, Newington Green (North) or Lordship Park conservation area, permitted development rights are restricted, so schemes that are automatic elsewhere need full applications, and design quality genuinely decides outcomes. Materials, glazing proportions and the roofscape all matter. We design for conservation streets across North London; it's bread and butter, and our North London extensions guide sets Hackney's rules beside those of its neighbours.
Timings: count on a Hackney householder decision arriving roughly eight weeks after validation. Flats and maisonettes always need full applications, whatever the postcode.
Party walls: N16 is almost entirely terraced, so the Party Wall Act applies to virtually every extension — typically agreements with both neighbours, budgeting £1,000–£2,500 per neighbour if surveyors are appointed. We serve the notices and manage the process end to end.
Our approach: design to Hackney's policies and the grain of the street, and back every permitted development scheme with a Lawful Development Certificate — the document that settles any doubt the day a buyer's solicitor asks.
How it works
How it works
- Free site visit — we look round your N16 terrace, hear your plans, and give a straight verdict on feasibility, cost and the planning route — conservation-area check included.
- Design & drawings — a full set of drawings and 3D visuals, designed around the terrace you've got and the kitchen-diner you want.
- Planning, handled — we assemble the application, lodge it with Hackney Council and steer it through to a decision.
- Fixed-price build — our vetted North London team builds, building control signs off, and you get the keys back to a tidy site.
Our work
Recent work across North London
Our projects include an Edwardian house in Finchley converted into three self-contained flats, with a 3m rear extension on every floor. In Hadley Wood, a full house transformation took a family home from 120m² to 360m². Both are written up with photos, in the Finchley flats conversion and Hadley Wood house extension case studies, and we can talk you through either one when we come round.
Questions, answered
Stoke Newington extension FAQs
How much does a side-return extension cost in Stoke Newington?
Typically £40,000–£75,000 for the build, or £80,000–£160,000 for a full wrap-around with a new kitchen space — excluding VAT, fees and kitchen units. N16 runs at a 10–15% premium to wider North London rates because of tight access and the high finish the area expects.
Why are side-returns so common in N16?
Because the stock suits them: Victorian terraces with a dead side alley and a narrow kitchen. Glazing over that alley adds usable space exactly where family life happens, without losing any garden.
I'm in one of N16's conservation areas — can I still extend?
Usually, yes. Conservation status restricts permitted development rights, so most schemes need a full application, and design quality matters more — matched brick, considered glazing, a respectful roofline. We handle conservation applications routinely; it adds care and a little time, not a roadblock.
Do I need planning permission for a rear extension in Stoke Newington?
Outside the conservation areas, often not — rear extensions to 3m (or 6m with prior approval) and most dormer lofts proceed under permitted development. Inside them, expect a full application for anything beyond a modest single-storey rear. Either way, we confirm your address against the council's conservation map before designing anything.
How does Hackney judge an extension in Stoke Newington?
On design as much as size. Rooflines, glazing proportions, materials and the effect on neighbours all get attention, and inside the conservation areas the bar rises. Modest, well-detailed side infills and rear dormers suit N16's terraces; overscaled schemes tend to be cut back or refused.
How long will my Stokey extension take, start to finish?
Roughly 4–8 weeks of design, around 8 weeks for a Hackney decision, then 2–4 months on site for a side-return or rear scheme. Party wall agreements with both neighbours — budget £1,000–£2,500 each if surveyors are appointed — run in parallel, so they rarely hold up the start.
What we build in Stoke Newington
The same team designs, gets planning and builds — one fixed, itemised price whichever route your Stoke Newington project takes.
- Kitchen extensions in Stoke Newington
- Side return extensions in Stoke Newington
- Double-storey & wrap-around in Stoke Newington
- Loft conversions in Stoke Newington
- Garage conversions in Stoke Newington
- Garden rooms & offices in Stoke Newington
Checking the rules for Stoke Newington first?
Nearby areas we cover
What clients say
Rated 5.0 on Google
“The Extension Company built a 5m single storey rear extension on our Victorian terrace in Crouch End. Went down the permitted development route so no planning application needed, which they explained up front and saved us months. Kitchen-diner now opens onto the garden with sliding doors. £87k all in, matched the quote.”
“From the initial site visit onwards to my property in Barnet, we felt that the team actually listened to what we wanted. They suggested a few changes to the layout that we hadn't considered, and those changes have made a huge difference. Would definitely use again and recommend”
“Used The Extension Company for a loft conversion on our semi detached in Barnet and couldn't be happier. They explained what was possible at the first visit, sorted the planning side, and gave a fixed price with no surprises at the end. The hip-to-gable and rear dormer gave us a big double bedroom with an en-suite. Tidy, professional and finished on schedule. Would recommend to anyone in North London thinking about a loft conversion.”
“We had been putting off our loft conversion for years because the whole process felt overwhelming. The team made it much easier than expected and handled the drawings, planning and build for us. We now have a lovely extra bedroom and shower room.”
“Our wrap-around extension has completely transformed the ground floor. We now have the open plan kitchen and family space we wanted without losing all of the garden. Thanks to everyone involved.”
“Really pleased with the work from The Extension Company. We had our extension done in Hampstead and the whole experience was excellent. Great communication from start to finish, The quality of the finish is excellent and we’re really happy with the result. Would definitely recommend them if you’re thinking about an extension.”
Reviews shown word for word from our Google profile. See 9 more client reviews · Read all 16 reviews on Google
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