Mansard Roof Extensions · N13 Palmers Green
Fixed-fee mansard roof extensions for Palmers Green, Broomfield Park, Bowes Park fringe in the N13 postcode, drawn by an MCIAT-chartered architectural technologist and submitted to Enfield Council. Enfield controls the Fox Lane (Lakes Estate) conservation area; N13 is a settled Edwardian family market.
MCIAT chartered drawings for planning, building regs, lofts and extensions — fixed fees 30% below typical London architects. Tell us what you need and we’ll reply the same working day.
A mansard roof extension adds a full storey behind a new sloping front face — a strong option on N13's terraces in Palmers Green where a standard dormer is too small. Enfield Council scrutinises mansards on townscape and precedent, especially within Fox Lane (the Lakes Estate), Broomfield; we design to the borough's roof guidance with a Heritage Statement where the setting requires it.
Palmers Green's most space-efficient loft solution when PD-route dormers are blocked. Our chartered team designs mansards that get approved in Palmers Green conservation areas — with heritage statements and planning officer negotiation built in.
Across Palmers Green, Broomfield Park, Bowes Park fringe in N13, the dominant property is edwardian and inter-war bay-fronted semis and terraces around palmers green, with larger houses toward broomfield park. That stock shapes what mansard roof extensions looks like here: the right approach for a period terrace differs from a mansion-block flat or a new-build, and Enfield Council judges each on design quality and neighbour impact. We survey the specific Palmers Green property, confirm the planning route — Permitted Development, a Lawful Development Certificate, or full planning — and draw a council-ready set tailored to the N13 streetscape.
Housing stock in N13: Edwardian and inter-war bay-fronted semis and terraces around Palmers Green, with larger houses toward Broomfield Park.
Within the district: Palmers Green, Broomfield Park, Bowes Park fringe.
Streets we know in N13: the Lakes Estate roads, Fox Lane, Old Park Road and the Broomfield Park streets. Each road has its own building line, boundary treatment and precedent that Enfield Council weighs when assessing a mansard roof extensions scheme.
Conservation areas: Fox Lane (the Lakes Estate), Broomfield. Inside these, most external work needs full planning and a Heritage Statement.
Getting around N13: Palmers Green rail to Moorgate, plus Bowes Park and Southgate (Piccadilly) nearby.
Property values: around £350,000 for a flat and £650,000-£950,000 for a house — a useful gauge of the build value an extension or loft adds in N13.
Borough character: Outer north London; Metropolitan Green Belt affects north; generally permissive elsewhere.
We check against Enfield Council's mansard design guide and design to match the terrace.
Required for Palmers Green's conservation areas — demonstrates the mansard respects character and townscape.
Accurate photomontage showing how the mansard sits alongside neighbours — often decisive at Enfield Council committee.
Mansards invariably trigger Party Wall notices in Palmers Green's dense terraced streets. Structural package includes new ridge, tie beams, floor joists.
Full liaison with Enfield Council planning officer, committee representation if called in.
Part L thermal, Part B fire (critical on mansards), Part E acoustic separation.
Single planning or building-regs submission.
Planning + building regs + structural.
Listed, conservation or complex sites.
Yes. The Edwardian and inter-war bay-fronted semis around Fox Lane and Old Park Road suit rear and side extensions plus loft conversions, much of it within Permitted Development outside the conservation area, confirmed with a Lawful Development Certificate. We confirm the route and draw to Enfield's checklist.
The Fox Lane (Lakes Estate) conservation area protects the Edwardian planned streets with controls over bays, materials and front gardens, so extensions there need full planning with a Heritage Statement. We design sympathetically to the estate's character and submit to Enfield.
Usually yes on the semis — a hip-to-gable plus rear dormer within the volume allowance, confirmed by a Lawful Development Certificate, provided you're not in the Fox Lane conservation area. We check the constraints for your road and draw it for Building Control.
With N13 houses around £650,000-£950,000 and a direct rail link to Moorgate, a rear extension or loft adds family space worth comfortably above the build and drawing cost. N13 offers strong north-London value, and our fixed fee keeps the professional cost predictable.
Our fixed fee for mansard roof extensions in Palmers Green starts at £1,575 — no hourly billing. With Palmers Green property at around £350,000 for a flat and £650,000-£950,000 for a house, the professional drawing fee is a small fraction of the value the work adds to N13's edwardian and inter-war bay-fronted semis and terraces. Enfield Council charges its own statutory application fee on top (currently £258 for a householder planning application, £578 for a full application). We quote the drawings as one fixed price and the free site survey covers every N13 address.
For a N13 project across Palmers Green, Broomfield Park, Bowes Park fringe, expect roughly 3–4 weeks from instruction to submission: week 1 the measured survey, weeks 2–3 the drawings and your revisions, then validation and the statutory determination by Enfield Council (8 weeks for a householder application). We carry the Palmers Green application through every officer query to the decision.
Palmers Green (N13) sits primarily in Enfield, so applications are decided by Enfield Council. Article 4 in force in the borough: No. Conservation areas within N13 include Fox Lane (the Lakes Estate), Broomfield, where full planning and a Heritage Statement are required. We confirm the planning route for your exact address before quoting.
Almost always. Any structural work behind mansard roof extensions in Palmers Green — new openings, steel beams, loft floors, foundations — needs Building Regulations approval covering structure (Part A), fire escape (Part B) and insulation (Part L), submitted to Enfield Council Building Control or an approved inspector. On N13's typically terraced and semi-detached stock, a Party Wall notice to adjoining neighbours is normally required before the steelwork. We coordinate both as part of the Complete package.
In value terms, yes. With Palmers Green (N13) property at around £350,000 for a flat and £650,000-£950,000 for a house, a well-designed extension or loft typically returns more than it costs in added floor area and sale value, while our fixed drawing fee from £1,575 keeps the professional cost predictable. The bigger risk is an unapproved or non-compliant scheme — which is why council-ready drawings and a clean Building Control sign-off matter on N13 homes.
From £840.
From £840.
From £1,225.
From £1,225.
From £995.
From £1,950.
From £350.
From £540.
From £450.
From £1,225.
Pick a slot that suits you. No obligation and no sales pressure — just straight answers on your planning route, fixed fee and timescale.
Every N13 postcode district we draw in, the stock that dominates it and the authority that validates a mansard roof extension there. N13 fees below are the statutory England rates for 2026, not mansard roof extension estimates.
| Postcode | Area | Dominant stock | What it means for a mansard roof extension |
|---|---|---|---|
| N13 | Palmers Green | Edwardian villas, 1930s semi-detached | A mansard roof extension at an N13 address in Palmers Green is determined by Enfield Council under its own Local Plan policies for Palmers Green. |
| N9 | Lower Edmonton | Victorian terraces, post-war estates | Adjoining district to N13, also inside Enfield for mansard roof extension purposes. |
| N14 | Southgate | 1930s semi-detached, Edwardian villas | Adjoining district to N13, also inside Enfield for mansard roof extension purposes. |
| N18 | Upper Edmonton | Victorian terraces, post-war estates | Adjoining district to N13, also inside Enfield for mansard roof extension purposes. |
Roof pitch, wall build-up and plot depth change every few N13 streets, and each one changes what a mansard roof extension can achieve at that address.
Conservation areas covering N13 (Palmers Green): Enfield Council runs 22, and Gentleman's Row, Winchmore Hill, Bush Hill Park are the ones N13 (Palmers Green) owners meet most. A mansard roof extension inside a N13 (Palmers Green) conservation area loses permitted development, so the N13 (Palmers Green) submission is a householder application at £258 decided in 8 weeks — not a £120 prior approval decided in 6 weeks. In Gentleman's Row a mansard roof extension is judged on the street elevation first.
N13 (Palmers Green) permitted development status: there is no borough-wide direction from Enfield Council, so a mansard roof extension at a N13 address is normally still permitted development. We certify that with a £129 Lawful Development Certificate rather than leaving a N13 (Palmers Green) sale to argue it later.
N13 (Palmers Green) housing stock: Edwardian villas in Palmers Green and Winchmore Hill; 1930s semi-detached in Southgate; Victorian terraces in Edmonton; Metropolitan Green Belt north of the borough. Outer north London; Metropolitan Green Belt affects north; generally permissive elsewhere. Read that before choosing a mansard roof extension route in N13 (Palmers Green) — construction, not postcode, sets what is achievable. Mansard roof extensions in N13 (Palmers Green) start at £1,575 on a fixed fee, or £1,750 for the Complete package covering both Enfield Council submissions.
Sources for this N13 mansard roof extension page: borough policies maps and conservation-area registers (2025–26), Royal Mail postcode district boundaries, the Town and Country Planning (Fees for Applications) (England) Regulations, the Town and Country Planning (General Permitted Development) (England) Order 2015 as amended, and the Party Wall etc. Act 1996.
Free fixed quote in 60 seconds. From £1,575. MCIAT chartered.
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