Two-storey extension drawings for Woughton homes — bedroom above, living space below, drawn against the 3-metre projection and 7-metre boundary rules and to Milton Keynes City Council's design guidance, delivered in days and revised free until your decision.
Milton Keynes City Council granted 87% of the householder planning decisions it made in its latest published year — level with the 87% England-wide householder average. The New Town's grid-road and linear-park design code shapes plot layout, boundary treatments and landscape setting across the grid squares, which is where a policy-literate drawing pack earns its keep. Its mixed housing stock sets the design brief street by street.
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. In conservation areas such as Woughton-on-the-Green, Milton Keynes Village and Willen those rights are removed, so we confirm your exact address before a line is drawn. A validated householder application in Woughton is determined against an 8-week statutory target.
Woughton on the Green (a historic green-side village and conservation area enclosed by the grid roads), Milton Keynes Village (the ancient village that gave the New Town its name, a conservation area), Willen (a historic village and conservation area beside Willen Lake and the peace pagoda), Broughton (a former village and conservation area on the eastern grid), Woolstone (the paired hamlets of Great and Little Woolstone within the central grid squares) and Springfield (a 1970s grid-square estate close to Central Milton Keynes) — these are the Woughton pockets our drawings cover most. Heritage designations here include Woughton-on-the-Green, Milton Keynes Village, Willen and Broughton. Milton Keynes City Council weighs each proposal against Plan:MK (the Milton Keynes Local Plan 2019), where historic village cores such as Woughton and Milton Keynes Village survive as conservation islands inside the modern grid, with tight controls on their heritage frontages. On roofs the borough is pitched clay-tile and thatch roofs on the village cores and gabled and mono-pitch roofs on the grid-square estates, over historic village cores of stone and brick cottages absorbed into the New Town grid, 1970s and 1980s grid-square estate housing and later low-density family housing across the grid squares.
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. Woughton is largely historic village cores of stone and brick cottages absorbed into the New Town grid, 1970s and 1980s grid-square estate housing and later low-density family housing across the grid squares, and pitched clay-tile and thatch roofs on the village cores and gabled and mono-pitch roofs on the grid-square estates 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.
The New Town's grid-road and linear-park design code shapes plot layout, boundary treatments and landscape setting across the grid squares. No residential Article 4 direction applies to the central grid villages, so permitted-development rights remain intact outside the conservation areas, while the Woughton-on-the-Green, Milton Keynes Village, Willen and Broughton conservation areas apply standard controls on the historic cores.
Some two-storey rear extensions are permitted development. You will need a full application to Milton Keynes City 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 Milton Keynes City Council checks first — then submit a validation-complete pack.
Below is Milton Keynes City Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Milton Keynes approves the large majority of householder applications, with the grid-square design code and the conservation islands of the historic villages the main constraints here. 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, England, 1 April 2025 - 31 March 2026). Compare every borough on our London approval-rate league table.
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Across Woughton on the Green, Milton Keynes Village and Willen, 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 historic village cores of stone and brick cottages absorbed into the new town grid, 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.
Historic village cores such as Woughton and Milton Keynes Village survive as conservation islands inside the modern grid, with tight controls on their heritage frontages. 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 Woughton. A few of the areas where they come up most often:
Two storey extension drawings for Woughton on the Green — a historic green-side village and conservation area enclosed by the grid roads — dimensioned against the 3m and 7m limits and drawn to Milton Keynes City Council's guidance.
Two storey extension drawings for Milton Keynes Village — the ancient village that gave the New Town its name, a conservation area — dimensioned against the 3m and 7m limits and drawn to Milton Keynes City Council's guidance.
Two storey extension drawings for Willen — a historic village and conservation area beside Willen Lake and the peace pagoda — dimensioned against the 3m and 7m limits and drawn to Milton Keynes City Council's guidance.
Two storey extension drawings for Broughton — a former village and conservation area on the eastern grid — dimensioned against the 3m and 7m limits and drawn to Milton Keynes City Council's guidance.
Two storey extension drawings for Woolstone — the paired hamlets of Great and Little Woolstone within the central grid squares — dimensioned against the 3m and 7m limits and drawn to Milton Keynes City Council's guidance.
Two storey extension drawings for Springfield — a 1970s grid-square estate close to Central Milton Keynes — dimensioned against the 3m and 7m limits and drawn to Milton Keynes City 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 Milton Keynes City 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 Milton Keynes City Council validates and decides two-storey applications.
Send us your Woughton postcode and garden depth. We measure the 7-metre boundary rule against your plot, confirm designation status, and score your odds against live Milton Keynes City 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 Milton Keynes City 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 Woughton, the 7-metre rule is what most commonly forces a full application to Milton Keynes City 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 Woughton gardens this is decisive, and we measure it on survey before any design work rather than discovering it at validation. Milton Keynes City Council is the decision-maker.
Not under permitted development — two-storey side extensions always need a full application to Milton Keynes City 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. This applies to your Woughton address specifically.
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 Woughton address specifically. Milton Keynes City 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 Milton Keynes City Council's planning decision, so we flag the notice period early and detail the junction on the drawings. This applies to your Woughton address specifically.
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 Woughton address specifically. Milton Keynes City Council is the decision-maker.
We quote each Woughton 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 Milton Keynes City Council approves. Call 020 7864 7245 to start.
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