Area guide · N13
House Extensions in Palmers Green (N13)
Planning a house extension in Palmers Green? We design, gain planning permission and build across N13's Edwardian streets — the terraces and semis built in one confident burst through the 1900s and 1910s after the railway arrived. Most single-storey rear extensions here cost £45,000–£90,000 to build, applications go to Enfield Council, and outside the Lakes Estate the prior-approval householder route can take a terrace or semi's rear extension to 6m — while the big moves on this Edwardian stock are the side-return-plus-rear wrap and the rear-dormer loft. A free site visit is the quickest way to find out what your own street will take.
Planning in Palmers Green
What Enfield Council has been approving around Palmers Green
The decisions below come from Enfield's Palmers Green ward and its neighbours, Highfield and Bowes, where most addresses are N13 too. Highfield reaches north into N21 and Bowes takes in part of N18, so those postcodes appear as well.
Single-storey rear extensions and lofts make up most of the list. The lofts are mainly confirmed by a lawful development certificate: rear dormers on the Edwardian roofs, often with a Juliet balcony and front roof lights, and side gables where a house has a hipped roof. Palmers Green ward itself leans towards householder applications, while Highfield sees a good share of 6m rears under the prior-approval route — the streamlined path that takes a semi's rear extension from 3m to 6m (4m to 8m on detached homes) by consulting the neighbours instead of running a full application.
Those certificates are for proposed work, issued before a brick is laid. A certificate of lawfulness for existing development is the other kind: what owners apply for when work went ahead without the paperwork. Far better to hold the certificate before the build than to chase one years later — it's how we run every permitted development job.
Recent planning decisions around Palmers Green
Extension, loft and basement applications decided in Enfield's Palmers Green, Highfield and Bowes wards, 23 Sep 2025 to 22 Sep 2026.
The newest decisions in those wards
- ApprovedSep 2026
Derwent Road, N13
Single storey rear extension.
26/02636/HOU · Enfield CouncilHouseholder application
- ApprovedSep 2026
Mitchell Road, N13
Single storey rear extension 6m deep x 3m high (2.8m high to eaves).
26/03254/PRH · Enfield CouncilPrior approval, larger home extension
- ApprovedAug 2026
Queensland Avenue, N18
Rear dormer with Juliette balcony and front roof lights.
26/02953/CEA · Enfield CouncilLawful development certificate
- ApprovedAug 2026
Ash Grove, N13
Single storey rear extension 6m deep x 2.9m high (2.8m high to eaves).
26/03079/PRH · Enfield CouncilPrior approval, larger home extension
- ApprovedAug 2026
Barrowell Green, N21
Rear dormer and front roof lights.
26/02945/CEA · Enfield CouncilLawful development certificate
- ApprovedAug 2026
Hedge Lane, N13
Extension to roof at side to form gable end with rear dormer and front rooflights and detached outbuilding at rear to form a gym.
26/03078/CEA · Enfield CouncilLawful development certificate
- ApprovedAug 2026
The Grove, N13
Rear dormer with front rooflights.
26/02991/CEA · Enfield CouncilLawful development certificate
- RefusedAug 2026
Barrowell Green, N21
Single storey rear extension.
26/02167/CEA · Enfield CouncilLawful development certificate
Look a reference up on the council’s own register: Enfield Council planning search.
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
Palmers Green's housing stock — and what works on each
Palmers Green is Edwardian through and through — street after street raised between 1900 and the 1910s as the railway opened the fields, with Broomfield Park as the green centrepiece and a high street whose long-established Greek-Cypriot community has earned the area its affectionate nickname, Little Cyprus. The stock is remarkably consistent, which means the winning schemes are too.
The Edwardian terraces. The defining Palmers Green house: bay front, hallway, and a narrow galley kitchen in the original rear addition with a dead side alley beside it. The side-return extension (£35,000–£65,000) reclaims that alley for a full-width kitchen-diner; combine it with a rear push and you have the wrap-around (£70,000–£140,000) that completely rethinks the ground floor. Above, the tall Edwardian roof takes a loft conversion with rear dormer superbly — a proper double bedroom without losing a metre of garden. Dormer types, costs and head-height checks for N13 roofs are covered in our guide to loft conversions in Palmers Green.
The wider Edwardian semis around Broomfield Park. More width, more garden, more options. The 6m prior-approval rear extension and the kitchen extension (£55,000–£110,000) both suit these plots, and rear-dormer lofts work just as well here as on the terraces.
The Lakes Estate, on the Fox Lane side. Palmers Green shares this celebrated Edwardian conservation area with neighbouring Southgate, and permitted development rights are restricted within it. Extensions still go ahead — as full applications with genuine care on materials, proportions and rooflines. Sensitive design isn't a hurdle for us; it's the brief.
Every street is different. That's the point.
We design to Palmers Green'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 Palmers Green in 2026
These are North London baseline ranges and they apply across N13 — labour and materials to a good standard, excluding VAT, professional fees and kitchen fit-out:
| Extension type | North London baseline costs (apply across N13) | On-site time | Usual planning route |
|---|---|---|---|
| Side-return extension | £35,000 – £65,000 | 2–3 months | Often permitted development |
| Single-storey rear | £45,000 – £90,000 | 3–4 months | Often permitted development |
| Kitchen extension (incl. mid-range kitchen) | £55,000 – £110,000 | 3–4 months | Often permitted development |
| Hip-to-gable loft + rear dormer | £55,000 – £90,000 | 6–10 weeks | Usually permitted development |
| Wrap-around extension | £70,000 – £140,000 | 4–6 months | Full application |
| Double-storey rear | £75,000 – £160,000 | 5–7 months | Full application |
| Garage conversion | £18,000 – £35,000 | 4–6 weeks | Usually permitted development |
As a rule of thumb, Palmers Green builds at £2,800–£4,200 per square metre — standard North London rates, with the care Edwardian brickwork and detailing deserve. Every job is priced after the free site visit as a fixed sum, itemised trade by trade — so the total you commit to is the total you part with.
Permissions, handled
Planning permission in Palmers Green — what you need to know
Most Palmers Green extensions don't need a full planning application. As standard, a terrace or semi may push 3m to the rear under permitted development and a detached house 4m; apply through the larger home prior-approval route and the ceiling rises to 6m and 8m, except on conservation-area land such as the Lakes Estate. Loft conversions enjoy a generous volume allowance, which the area's tall Edwardian roofs put to excellent use.
The Fox Lane side needs more care. The Lakes Estate conservation area restricts permitted development rights, and planning.data.gov.uk maps an Enfield Article 4 direction over the estate that removes more, so schemes there proceed as full applications judged on design quality. For the rest of N13, we check your address against Enfield's conservation map as standard before designing.
Which council: N13 is almost all Enfield, but not quite. A handful of postcodes at its southern tip belong to Haringey, whose conservation areas and Article 4 directions are separate from Enfield's, so we confirm the council for your exact address first. Our North London guide sets out Haringey's rules alongside Enfield's.
Timing: Enfield's target for a standard householder decision sits in the region of eight weeks; prior-approval and certificate cases often resolve faster.
Party walls: terraces dominate Palmers Green, and a side-return or wrap-around usually engages the shared wall — sometimes on both sides. Budget £1,000–£2,500 per affected neighbour if surveyors are appointed; we serve the notices and keep relations friendly.
Paperwork that pays: a certificate for existing development is what owners end up chasing when work runs ahead of paperwork. We secure a Lawful Development Certificate before building any permitted development scheme, so your extension is unimpeachable when you sell.
How it works
How it works
- Free site visit — we walk your Edwardian terrace or semi here in Palmers Green, listen to what you're after, and give straight answers on feasibility, budget and the planning route.
- Design & drawings — considered plans and 3D visuals that work with the Edwardian bones of the house and the way you live day to day.
- Planning, handled — the full application package goes into Enfield Council with us managing every stage until it's decided.
- Fixed-price build — our vetted North London team takes care of the construction, the building control sign-off and a clean, tidy handover.
Our work
Recent work near Palmers Green
One finished project we can point Palmers Green owners to is in Hadley Wood, where our build team carried out a full house transformation that took a family home from 120m² to 360m² — see it in the Hadley Wood case study. At your site visit, just ask and we'll talk through how the same approach would work on your N13 terrace or semi.
Questions, answered
Palmers Green extension FAQs
What does an extension cost in Palmers Green?
Most single-storey rear builds land between £45,000 and £90,000; side-returns start around £35,000 and wrap-arounds run £70,000–£140,000, all excluding VAT and fees. N13 builds at standard North London rates of £2,800–£4,200/m².
What's the best extension for an Edwardian terrace in N13?
The side-return is the classic first move — it turns the narrow galley kitchen into a full-width kitchen-diner. Pair it with a rear extension as a wrap-around for a whole-ground-floor rethink, and add a rear-dormer loft when you need another bedroom. That combination is what this stock was waiting a century for.
My house is near Fox Lane — am I in the Lakes Estate conservation area?
Possibly — the estate covers the Edwardian roads between Fox Lane and Bourne Hill, shared with Southgate. We check your exact address against Enfield's conservation map before designing; inside the boundary, your scheme goes in as a full application with conservation-grade detailing.
What is a certificate of lawfulness, and when do I need one?
It's the council's formal confirmation that work is (or was) lawful without planning permission. Owners who built first sometimes apply for one afterwards, for existing work — but the smart order is certificate first, build second, which is how we run every permitted development project.
Will a side-return need party wall agreements?
Almost always, because it builds along the shared boundary wall. A wrap-around can engage both neighbours. Allow £1,000–£2,500 per affected neighbour where surveyors are appointed — we prepare the notices early so nothing stalls.
How long does Enfield take to decide an N13 application?
Around eight weeks for a standard householder application, with prior-approval and certificate cases often resolving faster. Design and drawings come before that, so start early if the build needs to finish by a particular date.
What we build in Palmers Green
The same team designs, gets planning and builds — one fixed, itemised price whichever route your Palmers Green project takes.
- Kitchen extensions in Palmers Green
- Side return extensions in Palmers Green
- Double-storey & wrap-around in Palmers Green
- Loft conversions in Palmers Green
- Garage conversions in Palmers Green
- Annexes in Palmers Green
- Loft conversions in Palmers Green — local guide
Checking the rules for Palmers Green 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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