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Two storey extension plans in Mitton — a two-storey rear addition to a family house
Mitton · Two Storey Extension Drawings

Two storey extension plans in Mitton

Two-storey extension drawings for Mitton homes — bedroom above, living space below, drawn against the 3-metre projection and 7-metre boundary rules and to Wyre Forest District Council's design guidance, delivered in days and revised free until your decision.

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Mitton planning decisions and design rules

Wyre Forest District Council granted 96% of the householder planning decisions it made in its latest published year — 9 points above the 87% England-wide householder average. Mitton contains the Gilgal conservation area (Gilgal designated 1991), so materials, fenestration and roof form are assessed against the appraisal, which is where a policy-literate drawing pack earns its keep. Its dominant Victorian (1837–1901) and postwar (1945–1970) housing stock sets the design brief on most streets.

Before permission is required, Class B allows 40m³ of added loft volume on a terrace and 50m³ on a semi or detached house, and Class A allows a 3m single-storey rear extension on a terrace or 4m on a detached house. In conservation areas such as Gilgal those rights are removed, so we confirm your exact address before a line is drawn. A validated householder application in Mitton is determined against an 8-week statutory target.

Gilgal (conservation area designated in 1991) and Stourport-on-Severn (civil parish within Mitton) — these are the Mitton pockets our drawings cover most. Heritage designations here include Gilgal. Wyre Forest District Council weighs each proposal against the adopted Wyre Forest local plan and Wyre Forest District Council's design guidance for householder work, where the 5,300 homes here are 17% 1955-1964, 14% 2000-2008, 13% pre-1900, which is what sets the realistic roof and rear-projection options. On roofs the borough is shallow gabled roofs typical of that period's building and trussed-rafter roofs typical of 2000s building, over late-1950s and early-1960s houses (17% of 5,300 homes), 2000s houses and apartments (14%) and Victorian and earlier houses (13%).

Why a Mitton scheme is judged on Mitton terms

What is permitted in Mitton turns on designation first, so that is where we start: Gilgal (conservation area designated in 1991). Inside those boundaries permitted development is curtailed and Wyre Forest District Council assesses materials, window detail and roof form against the area's own appraisal, so a scheme that would be waved through two streets away can need a full application here.

Beyond the designated areas, Mitton takes in Stourport-on-Severn. No Article 4 direction is recorded for Wyre Forest District Council, but Mitton's 1 conservation area still limit permitted development on those streets.

On stock, Mitton is late-1950s and early-1960s houses (17% of 5,300 homes), 2000s houses and apartments (14%) and Victorian and earlier houses (13%) — which is why shallow gabled roofs typical of that period's building and trussed-rafter roofs typical of 2000s building govern what a loft or rear projection can realistically be. Wyre Forest District Council decided 203 householder applications in the latest published year and granted 96%, with 68% issued inside the eight-week target. We draw to that record rather than to a national average.

The full build-period split for Mitton runs pre-1900 13% (710 homes), 1900-1918 2% (120 homes), 1919-1929 1% (70 homes), 1930-1939 11% (600 homes), 1945-1954 2% (80 homes), 1955-1964 17% (880 homes), 1965-1972 9% (480 homes), 1973-1982 2% (110 homes), 1983-1992 7% (380 homes), 1993-1999 9% (460 homes) and 2000-2008 14% (730 homes). That distribution is why pre-1900 detailing dominates the drawings here, and it is measured from council-tax records rather than assumed from the street name.

Wyre Forest District Council also decides for Bewdley & Rock, Wribbenhall & Arley and Wyre Forest Rural, so a decision in Mitton sits inside a wider pattern of decisions we track across the same authority — useful when an officer cites a precedent from the next area over.

Mitton by the published data

Published figures for Mitton and Wyre Forest District Council. These are the numbers that decide what is realistic on your street, so we work from them rather than from national averages.

MeasureMitton
Dwellings recorded5,300
Built pre-1900710 (13%)
Built 1900-1918120 (2%)
Built 1919-192970 (1%)
Built 1930-1939600 (11%)
Built 1945-195480 (2%)
Built 1955-1964880 (17%)
Built 1965-1972480 (9%)
Built 1973-1982110 (2%)
Built 1983-1992380 (7%)
Built 1993-1999460 (9%)
Built 2000-2008730 (14%)
Built before 191916%
Built 1919–193913%
Built 1945–200859%
Conservation areas in Mitton1 (Gilgal)
Conservation areas district-wide17
Article 4 directions recorded0
Householder applications decided203
Householder applications granted96%
Decided within 8 weeks68%

Dwelling stock from VOA council-tax data at 31 March 2025; conservation-area and Article 4 counts from planning.data.gov.uk (MHCLG); decision figures are Wyre Forest District Council's own, from MHCLG live table PS2 for the year to 31 March 2026.

The three tests a Mitton two-storey extension has to pass

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. Mitton is largely late-1950s and early-1960s houses (17% of 5,300 homes), 2000s houses and apartments (14%) and Victorian and earlier houses (13%), and shallow gabled roofs typical of that period's building and trussed-rafter roofs typical of 2000s building 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.

Mitton contains the Gilgal conservation area (Gilgal designated 1991), so materials, fenestration and roof form are assessed against the appraisal. No Article 4 direction is recorded for Wyre Forest District Council, but Mitton's 1 conservation area still limit permitted development on those streets.

Isometric two storey extension drawing for a Mitton house

Does a two storey extension need planning permission in Mitton?

Some two-storey rear extensions are permitted development. You will need a full application to Wyre Forest District Council if any of these apply:

  • The extension projects more than 3 metres beyond the original rear wall
  • Any part comes within 7 metres of the rear boundary
  • The eaves or ridge would sit higher than the existing house
  • The extension is to the side, or wraps around to the side at first floor
  • Upper-floor side windows are clear-glazed or open below 1.7 metres
  • The property is on designated land such as Gilgal, where two-storey rights are removed

Mitton two-storey extension approval rates — live council data

Below is Wyre Forest District Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Wyre Forest District Council granted 96% of its householder applications in the year to 31 March 2026, and Gilgal shapes what is approved 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.

96%householder applications approved in Wyre Forest
87%national average — Wyre Forest is 9 points above the national average

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What two-storey extensions get approved in Mitton

Across Gilgal and Stourport-on-Severn, 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 late-1950s and early-1960s houses (17% of 5,300 homes), 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.

The 5,300 homes here are 17% 1955-1964, 14% 2000-2008, 13% pre-1900, which is what sets the realistic roof and rear-projection options. 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.

Ground floor created by a two storey extension in Mitton

Two-storey extensions across Mitton

We draw two-storey extensions across Mitton. A few of the areas where they come up most often:

Gilgal

Two storey extension drawings for Gilgal — conservation area designated in 1991 — dimensioned against the 3m and 7m limits and drawn to Wyre Forest District Council's guidance.

Stourport-on-Severn

Two storey extension drawings for Stourport-on-Severn — civil parish within Mitton — dimensioned against the 3m and 7m limits and drawn to Wyre Forest District Council's guidance.

Which two-storey extensions are permitted development in Mitton?

The first-floor limits are tighter than the ground-floor ones. This is how the common cases compare.

SchemePermitted development?Deciding limitWhat Wyre Forest District Council checks
Two-storey rear, 3m projection, 7m+ to boundaryOften yes3m projection / 7m boundaryRoof match, side-window glazing
Two-storey rear, under 7m to boundaryNo — full applicationRear-boundary distanceOverlooking, daylight, garden loss
Two-storey side extensionNo — full applicationSide elevationGap to boundary, street rhythm
Two-storey wraparoundNo — full applicationCombined footprintBulk, massing, neighbour amenity
Any two-storey on designated landNo — full applicationDesignationCharacter and appearance

Limits from the GPDO 2015, Schedule 2, Part 1, Class A — two-storey rear extension conditions.

Four steps to an approved Mitton two-storey extension

A fixed process built around how Wyre Forest District Council validates and decides two-storey applications.

  1. 1

    Free approval check

    Send us your Mitton postcode and garden depth. We measure the 7-metre boundary rule against your plot, confirm designation status, and score your odds against live Wyre Forest District Council decisions.

  2. 2

    Measured survey

    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.

  3. 3

    Design, drawings & structure

    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.

  4. 4

    Submission & follow-through

    We submit the application, manage validation and case-officer queries, and revise the drawings free until Wyre Forest District Council issues its decision.

Frequently asked questions

Do I need planning permission for a two storey extension in Mitton?

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 Mitton, the 7-metre rule is what most commonly forces a full application to Wyre Forest District Council.

What is the 7 metre rule for two storey extensions in Mitton?

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 Mitton gardens this is decisive, and we measure it on survey before any design work rather than discovering it at validation. Wyre Forest District Council is the decision-maker.

Can I build a two storey side extension in Mitton?

Not under permitted development — two-storey side extensions always need a full application to Wyre Forest District 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 Mitton address specifically.

Will a two storey extension in Mitton be refused for overlooking?

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 Mitton address specifically. Wyre Forest District Council is the decision-maker.

Do I need a party wall agreement for a two storey extension in Mitton?

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 Wyre Forest District Council's planning decision, so we flag the notice period early and detail the junction on the drawings. This applies to your Mitton address specifically.

Does a two storey extension need structural calculations in Mitton?

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 Mitton address specifically. Wyre Forest District Council is the decision-maker.

How much do two storey extension plans in Mitton cost?

We quote each Mitton 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 Wyre Forest District Council approves. Call 020 7864 7245 to start.

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