Enfield, London
Loft conversion drawings in Enfield
Loft conversion drawings in Enfield start at £695 including VAT. Two local facts shape most projects: about 37 per cent of the borough is Green Belt, and its Article 4 directions cover 33 mapped areas where everyday rights may already have been withdrawn.
From £695 (VAT included)
- MCIAT chartered
- £2m PI insured
- LABC Partnered
- Fixed fees, VAT included
Request a fixed quote

Enfield's Article 4 areas and Green Belt, and what they mean for a loft
Enfield does not publish a loft-specific headroom or dormer-size rule that we can quote as a number, so the local test is geographic. The borough's Article 4 directions cover 33 mapped areas, and each direction removes specific permitted development rights from the addresses inside it. Whether your roof is one of them can only be settled by checking your address against the map.
Green Belt is the other local factor. About 37 per cent of the borough lies in it. A loft within an existing roof rarely raises a Green Belt question, but a dormer that adds noticeable volume is read against the policy on proportionate additions, which is another reason to size it carefully.
For you, we therefore begin with an address check, not a design. It tells us whether the loft can rely on permitted development, needs a planning application, or needs more thought because of a direction or the Green Belt.

Local figures for Enfield
| Measure | Value | Period | Source |
|---|---|---|---|
| Conservation areas | 24 named conservation areas published by the council | — | planning.data.gov.uk |
| Article 4 direction areas | 33 Article 4 direction area polygons published by the council | — | planning.data.gov.uk |
| Green Belt share of the council area | 37 % of council area covered by green-belt polygons | — | planning.data.gov.uk |
| Listed building entries | 301 list entries (Historic England, within the LPA boundary) | — | planning.data.gov.uk |
| Households living in a house | 61.2 % of households living in a house or bungalow (detached, semi-detached or terraced) | Census 2021 | nomisweb.co.uk |
| Householder decisions | 934 decisions | 1 July 2025 - 30 June 2026 | assets.publishing.service.gov.uk |
| Householder applications granted | 83.4 % | 1 July 2025 - 30 June 2026 | assets.publishing.service.gov.uk |
| Householder applications decided in time | 92.4 % decided within 8 weeks or an agreed extended period | 1 July 2025 - 30 June 2026 | assets.publishing.service.gov.uk |
| GPDO 2015 Sch 2 Pt 1 Class B, para B.1(d) | 40 m³ (terrace house) / 50 m³ (any other house) additional roof volume | — | legislation.gov.uk |
| Class B, para B.1(c) | No enlargement beyond the plane of a roof slope that forms the principal elevation and fronts a highway | — | legislation.gov.uk |
| Class B, para B.1(f) | Class B roof enlargements are not permitted development on article 2(3) land | — | legislation.gov.uk |
| Approved Document K 2013, para 1.13, Diagram 1.4 | Loft conversions where 2.0 m cannot be achieved: 1.9 m at the centre of the stair, 1.8 m at the side (half width) | — | gov.uk |
| Approved Document B Vol 1, para 2.21 | New storey above 4.5 m by loft conversion: protect the full escape route with fire-resisting doors (min E 20) and partitions (min REI 30) | — | gov.uk |
A blank value means the figure has not been published, not that there are none. Check your own address with the council.
Householder applications by street in Enfield
| Street | Applications | Approved |
|---|---|---|
| Lonsdale Drive | 43 | 85% |
| Wynchgate | 37 | 84% |
| Prince George Avenue | 35 | 83% |
| South Lodge Drive | 32 | 74% |
| Old Park Ridings | 29 | 64% |
| The Chine | 29 | 66% |
| Beech Hill Avenue | 28 | 76% |
| Chase Road | 28 | 56% |
| Lakenheath | 28 | 70% |
| Lancaster Avenue | 28 | 77% |
| Winchmore Hill Road | 28 | 75% |
| Conway Road | 27 | 78% |
| Merryhills Drive | 27 | 85% |
| Derwent Road | 25 | 73% |
| Woodland Way | 25 | 67% |
Loft enlargement in section: the permitted development limits
A dormer on the rear slope, with the limits that decide whether it needs planning permission.
- A · Extra roof volume allowed
- 40 m³ (terrace house) / 50 m³ (any other house) additional roof volume
- B · Set-back from the eaves
- Original eaves maintained; enlargement set at least 0.2 m from the eaves measured up the roof slope, so far as practicable (not required for hip-to-gable or roofs joining a rear/side extension)
- C · Height limit
- No part higher than the highest part of the existing roof
Conservation areas and heritage in Enfield
Enfield has 24 conservation areas, and inside any of them a roof enlargement is not permitted development. Historic England records 301 list entries in the borough, and a listed house needs its own consent for roof alterations, whatever the planning route.
If the address is clear of all three constraints, a Lawful Development Certificate in Enfield confirms the loft is lawful before you build. If it is not, the work goes through householder planning, drawn as in our planning drawings in Enfield.
We say so plainly when a house sits on the edge of a constraint. Being near a boundary is not the same as being inside it, but the line is exact, and we would rather check it than assume.
Surveying an Enfield house
With 61.2 per cent of households in a house and 52.4 per cent owning their home, Enfield is largely a borough of houses. If an extra bedroom is the point of your loft, the surveyed roof tells us whether that is realistic: ridge height, rafter depth, party walls and the line of the existing stair.
We place the loft on one datum with the floors beneath, so the stair position can be tested against what it takes from the room below. The structural engineer then works from the same measurements, and the later building regulations drawings in Enfield follow the planning set without rework.
A good survey saves cost later. Missing a chimney breast, a water tank platform or a shallow rafter at design stage can force a loft scheme to be redrawn.
Roofs also differ between older terraces and later suburban estates, so a design that worked for a friend two streets away may not suit yours. We never reuse another house's drawings; each loft is drawn from its own survey, which is also why we can show you the structure and the stair position before you commit.
How Enfield has decided householder applications
Enfield decided 934 householder applications in its latest published year and granted 83.4 per cent. 92.4 per cent were decided within eight weeks or an agreed extension.
The figures cover all household projects and describe the borough, not your house. We use them to set a realistic timetable.
What the officer sees matters as much as the statistics. A tidy set of drawings that shows the roof against its neighbours, labels every dimension and explains why the dormer is the size it is will be easier to assess than a sketch that leaves questions open. That is the standard we draw to, and it is why we put the elevation work in before anything else.
What the drawings include and what they cost
An Enfield loft set shows the existing and proposed floor plans, the new stair, the roof in section, all four elevations and the location and block plans. Loft conversion drawings start at £695 including VAT, quoted before you commit, and normally take about a week after the survey.
Every sheet is checked by a second chartered technologist. If the council asks for changes we redraw at no extra charge until the application is decided.
Other drawings and neighbouring boroughs
For the roof form in detail, see dormer loft conversion drawings in Enfield. Adding a ground-floor extension as well? Rear extension drawings in Enfield cover that. The whole range is at architectural drawings in Enfield. Next door, compare Barnet and Haringey.
What you receive


Related pages
Other services in Enfield
Loft conversion drawings nearby
Questions
Do I need planning permission for a loft conversion in Enfield?
It depends on the address. A roof enlargement is not permitted development in any of Enfield's 24 conservation areas, and its Article 4 directions can remove rights elsewhere. We check the address first.
Does the Green Belt affect a loft in Enfield?
Rarely for a conversion inside the existing roof, but a dormer that adds volume is read against Green Belt policy on additions. About 37 per cent of the borough is Green Belt.
How much do loft conversion drawings cost in Enfield?
From £695 including VAT, fixed up front. Council fees are paid to the council separately.
How many Article 4 areas does Enfield have?
The council's directions cover 33 mapped areas. Each removes particular rights from the addresses inside it.
Sources and dates
- planning.data.gov.uk, retrieved
- planning.data.gov.uk, retrieved
- planning.data.gov.uk, retrieved
- planning.data.gov.uk, retrieved
- nomisweb.co.uk, retrieved
- assets.publishing.service.gov.uk, retrieved
- legislation.gov.uk, retrieved
- gov.uk, retrieved
- gov.uk, retrieved
- nomisweb.co.uk, retrieved
- Contains public sector information licensed under the Open Government Licence v3.0.
- Contains OS data © Crown copyright and database right 2026.
- Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
- Contains Historic England data © Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026.

Tell us about your property.
We check the constraints, then send a fixed fee. Messages before 3pm get a reply the same working day.