Two-storey extension drawings for Enfield homes — bedroom above, living space below, drawn against the 3-metre projection and 7-metre boundary rules and to Enfield Council's design guidance, delivered in days and revised free until your decision.
Enfield Council granted 86% of the householder planning decisions it made in its latest published year — 1 point below the 87% England-wide householder average. Green Belt across the north of the borough tightly limits extensions and outbuildings, which is where a policy-literate drawing pack earns its keep. Its dominant Victorian (1837–1901), Edwardian (1901–1910) and interwar (1918–1939) housing stock sets the design brief on most streets.
The permitted-development ceilings are fixed: 40m³ of new roof volume for a terraced loft and 50m³ for a semi or detached house under Class B, plus a 3m single-storey rear extension on a terrace or 4m on a detached house under Class A. Enfield carries at least one Article 4 direction, and conservation areas including Forty Hall, Gentleman's Row and Winchmore Hill Green remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Enfield is determined against an 8-week statutory target.
Enfield Town (the historic core around Gentleman's Row), Winchmore Hill (Edwardian streets wrapped around the Green), Southgate (interwar semis and the Southgate Green conservation area), Palmers Green (Edwardian terraces and the Fox Lane Article 4 estate), Bush Hill Park (Victorian and Edwardian terraces inside a conservation area) and Edmonton (denser Victorian and interwar housing) — these are the Enfield pockets our drawings cover most. Heritage designations here include Forty Hall, Gentleman's Row, Winchmore Hill Green, Bush Hill Park and Fox Lane (Lakes Estate). Enfield Council weighs each proposal against Enfield Local Plan and the Enfield Design Guide SPD, where hip-to-gable and dormer works on paired interwar semis are judged on bulk and the symmetry of the pair. On roofs the borough is hipped roofs on the interwar semis and gabled roofs on the Edwardian terraces, over interwar semi-detached houses, Edwardian terraces and larger detached houses on the Green Belt fringe.
Adding at first floor changes the question the case officer asks. A single-storey extension is judged mostly on daylight and garden loss; a two-storey extension is judged on overlooking, bulk against the neighbouring roofline, and whether it reads as part of the house or bolted onto it. Enfield is largely interwar semi-detached houses, Edwardian terraces and larger detached houses on the Green Belt fringe, and hipped roofs on the interwar semis and gabled roofs on the Edwardian terraces set what a matching roof actually means here.
The permitted-development route exists but is narrow: 3 metres of rear projection, a 7-metre stand-off from the rear boundary, eaves and ridge no higher than the original, and side-facing upper windows obscure-glazed and non-opening below 1.7 metres above floor level. Most two-storey schemes fail one of those, usually the 7-metre boundary rule on a shorter garden, and go in as a full application instead. We establish which route applies before designing, because it changes the drawing set.
Green Belt across the north of the borough tightly limits extensions and outbuildings. The Fox Lane (Lakes Estate) conservation area in Palmers Green carries an Article 4 direction, and Enfield's other conservation areas including Gentleman's Row remove permitted-development rights on their streets.
Some two-storey rear extensions are permitted development. You will need a full application to Enfield Council if any of these apply:
We set the projection and boundary distance on the site plan, prove the roof-pitch match on the elevations, and specify obscure glazing on the side windows — the three things Enfield Council checks first — then submit a validation-complete pack.
Below is Enfield Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Enfield grants a solid majority of householder applications, though Green Belt in the north and the symmetry of paired semis constrain what gets approved on many streets. Two-storey schemes attract more neighbour comment than any other householder work, so the overlooking and daylight case has to be made on the drawings.
Source: MHCLG planning application statistics (householder decisions, rolling year). Compare every borough on our London approval-rate league table.
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Across Enfield Town, Winchmore Hill and Southgate, the schemes that succeed set the first floor back from the ground floor, keep the ridge below the original, and treat the flank wall as blank or obscure-glazed. On interwar semi-detached houses, matching the eaves line matters more than matching the brick: an extension that carries the existing eaves through reads as original even in a different material.
Hip-to-gable and dormer works on paired interwar semis are judged on bulk and the symmetry of the pair. We draw the 45-degree daylight test from the neighbour's nearest habitable window, show the window positions in section, and set out the steel and foundation implications early — a two-storey extension changes the load path, so the structural design and the planning design have to be developed together rather than in sequence.
We draw two-storey extensions across Enfield. A few of the areas where they come up most often:
Two storey extension drawings for Enfield Town — the historic core around Gentleman's Row — dimensioned against the 3m and 7m limits and drawn to Enfield Council's guidance.
Two storey extension drawings for Winchmore Hill — Edwardian streets wrapped around the Green — dimensioned against the 3m and 7m limits and drawn to Enfield Council's guidance.
Two storey extension drawings for Southgate — interwar semis and the Southgate Green conservation area — dimensioned against the 3m and 7m limits and drawn to Enfield Council's guidance.
Two storey extension drawings for Palmers Green — Edwardian terraces and the Fox Lane Article 4 estate — dimensioned against the 3m and 7m limits and drawn to Enfield Council's guidance.
Two storey extension drawings for Bush Hill Park — Victorian and Edwardian terraces inside a conservation area — dimensioned against the 3m and 7m limits and drawn to Enfield Council's guidance.
Two storey extension drawings for Edmonton — denser Victorian and interwar housing — dimensioned against the 3m and 7m limits and drawn to Enfield Council's guidance.
The first-floor limits are tighter than the ground-floor ones. This is how the common cases compare.
| Scheme | Permitted development? | Deciding limit | What Enfield Council checks |
|---|---|---|---|
| Two-storey rear, 3m projection, 7m+ to boundary | Often yes | 3m projection / 7m boundary | Roof match, side-window glazing |
| Two-storey rear, under 7m to boundary | No — full application | Rear-boundary distance | Overlooking, daylight, garden loss |
| Two-storey side extension | No — full application | Side elevation | Gap to boundary, street rhythm |
| Two-storey wraparound | No — full application | Combined footprint | Bulk, massing, neighbour amenity |
| Any two-storey on designated land | No — full application | Designation | Character and appearance |
Limits from the GPDO 2015, Schedule 2, Part 1, Class A — two-storey rear extension conditions.
A fixed process built around how Enfield Council validates and decides two-storey applications.
Send us your Enfield postcode and garden depth. We measure the 7-metre boundary rule against your plot, confirm designation status, and score your odds against live Enfield Council decisions.
We measure the original rear wall, eaves and ridge heights, garden depth and every neighbouring window that faces the site — the inputs the daylight and overlooking case is built from.
Chartered designers develop the two-storey addition to your brief with the roof and eaves resolved, and we coordinate the load path so the structural scheme and the planning scheme are the same building.
We submit the application, manage validation and case-officer queries, and revise the drawings free until Enfield Council issues its decision.
Often, but not always. A two-storey rear extension can be permitted development if it projects no more than 3 metres, sits at least 7 metres from the rear boundary, does not exceed the existing eaves and ridge, and has obscure-glazed non-opening side windows below 1.7 metres. In Enfield, the 7-metre rule is what most commonly forces a full application to Enfield Council.
No part of a permitted-development two-storey rear extension may come within 7 metres of the boundary opposite the rear wall of the house. It exists to protect the neighbour behind you from being overlooked at first floor. On shorter Enfield gardens this is decisive, and we measure it on survey before any design work rather than discovering it at validation. Enfield Council is the decision-maker.
Not under permitted development — two-storey side extensions always need a full application to Enfield Council. They are assessed on the gap to the boundary, whether the street's rhythm of spaces between houses survives, and whether the extension is subordinate to the original. Setting the first floor back from the front building line and down from the ridge is what usually makes the difference.
Overlooking is the most common objection, and it is answerable on the drawings. We position habitable-room windows away from neighbouring gardens, obscure-glaze and fix shut anything on the flank below 1.7 metres, and show the sight lines in section. Where the geometry is tight, a rooflight or a high-level window gives the same daylight without the mutual overlooking that draws objections. This applies to your Enfield address specifically. Enfield Council is the decision-maker.
Almost certainly. Excavating within 3 metres of a neighbouring structure and building on or up to the boundary both trigger the Party Wall etc. Act 1996, and a two-storey extension usually does both. It is entirely separate from Enfield Council's planning decision, so we flag the notice period early and detail the junction on the drawings.
Yes. Adding a floor changes the load path from roof to foundation, so beams, padstones and foundation depths all need designing and calculating for building control. Planning and building regulations are separate consents, and the structural set is what building control assesses — we prepare both so the approved scheme is the buildable one. This applies to your Enfield address specifically. Enfield Council is the decision-maker.
We quote each Enfield two-storey extension individually, because plot depth, roof form and structural complexity vary house to house, and send a fixed, no-obligation quote within one working day. It covers the drawing pack with free revisions until Enfield Council approves. Call 020 7864 7245 to start.
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