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

Two storey extension plans in Cranleigh West

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

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Cranleigh West planning decisions and design rules

Waverley Borough Council granted 93% of the householder planning decisions it made in its latest published year — 6 points above the 87% England-wide householder average. Cranleigh West contains the CRANLEIGH conservation area (CRANLEIGH designated 1973), 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. Cranleigh West carries at least one Article 4 direction, and conservation areas including CRANLEIGH remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Cranleigh West is determined against an 8-week statutory target.

CRANLEIGH (conservation area designated in 1973) and Cranleigh (civil parish within Cranleigh West) — these are the Cranleigh West pockets our drawings cover most. Heritage designations here include CRANLEIGH. Waverley Borough Council weighs each proposal against Waverley Borough Council's adopted local plan and its householder design guidance, where the 2,810 homes here are 13% 1965-1972, 9% pre-1900, 9% 1983-1992, which is what sets the realistic roof and rear-projection options. On roofs the borough is shallow-pitched roofs and integral garages typical of that period's building and steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building, over late-1960s and early-1970s houses (13% of 2,810 homes), Victorian and earlier houses (9%) and 1980s estate houses (9%).

Why a Cranleigh West scheme is judged on Cranleigh West terms

What is permitted in Cranleigh West turns on designation first, so that is where we start: CRANLEIGH (conservation area designated in 1973). Inside those boundaries permitted development is curtailed and Waverley Borough 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, Cranleigh West takes in Cranleigh. Waverley Borough Council has 26 recorded Article 4 directions, removing permitted development for rear and side extensions and other roof alterations, including rooflights — check the address before assuming PD applies in Cranleigh West.

On stock, Cranleigh West is late-1960s and early-1970s houses (13% of 2,810 homes), Victorian and earlier houses (9%) and 1980s estate houses (9%) — which is why shallow-pitched roofs and integral garages typical of that period's building and steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building govern what a loft or rear projection can realistically be. Waverley Borough Council decided 884 householder applications in the latest published year and granted 93%, with 66% issued inside the eight-week target. We draw to that record rather than to a national average.

The full build-period split for Cranleigh West runs pre-1900 9% (260 homes), 1900-1918 5% (140 homes), 1919-1929 2% (50 homes), 1930-1939 7% (200 homes), 1945-1954 3% (80 homes), 1955-1964 3% (90 homes), 1965-1972 13% (360 homes), 1973-1982 7% (190 homes), 1983-1992 9% (260 homes), 1993-1999 1% (20 homes) and 2000-2008 2% (70 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.

Waverley Borough Council also decides for Bramley & Wonersh, Chiddingfold, Elstead & Peper Harow, Ewhurst & Ellens Green, Farnham Bourne, Farnham Castle, Farnham Moor Park and Farnham Rowledge, so a decision in Cranleigh West 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.

The Article 4 directions recorded for this council include Beacon Hill Commercial Area (2022), Buildings Wood, Horsham Road, Ewhurst (1961), Farnham Trading Estate, Water Lane, Farnham (1965) and Godalming Station Commercial Area (2022). Each removes a specific permitted-development right inside its own boundary, which is why the check is done on the address rather than on the town.

Cranleigh West by the published data

Published figures for Cranleigh West and Waverley Borough Council. These are the numbers that decide what is realistic on your street, so we work from them rather than from national averages.

MeasureCranleigh West
Dwellings recorded2,810
Built pre-1900260 (9%)
Built 1900-1918140 (5%)
Built 1919-192950 (2%)
Built 1930-1939200 (7%)
Built 1945-195480 (3%)
Built 1955-196490 (3%)
Built 1965-1972360 (13%)
Built 1973-1982190 (7%)
Built 1983-1992260 (9%)
Built 1993-199920 (1%)
Built 2000-200870 (2%)
Built before 191914%
Built 1919–19399%
Built 1945–200838%
Conservation areas in Cranleigh West1 (CRANLEIGH)
Conservation areas district-wide44
Article 4 directions recorded26
Householder applications decided884
Householder applications granted93%
Decided within 8 weeks66%

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 Waverley Borough Council's own, from MHCLG live table PS2 for the year to 31 March 2026.

The three tests a Cranleigh West 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. Cranleigh West is largely late-1960s and early-1970s houses (13% of 2,810 homes), Victorian and earlier houses (9%) and 1980s estate houses (9%), and shallow-pitched roofs and integral garages typical of that period's building and steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 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.

Cranleigh West contains the CRANLEIGH conservation area (CRANLEIGH designated 1973), so materials, fenestration and roof form are assessed against the appraisal. Waverley Borough Council has 26 recorded Article 4 directions, removing permitted development for rear and side extensions and other roof alterations, including rooflights — check the address before assuming PD applies in Cranleigh West.

Isometric two storey extension drawing for a Cranleigh West house

Does a two storey extension need planning permission in Cranleigh West?

Some two-storey rear extensions are permitted development. You will need a full application to Waverley Borough 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 CRANLEIGH, where two-storey rights are removed
  • An Article 4 direction applies to your street — always checked first in Cranleigh West

Cranleigh West two-storey extension approval rates — live council data

Below is Waverley Borough Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Waverley Borough Council granted 93% of its householder applications in the year to 31 March 2026, and CRANLEIGH 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.

93%householder applications approved in Waverley
87%national average — Waverley is 6 points above the national average

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What two-storey extensions get approved in Cranleigh West

Across CRANLEIGH and Cranleigh, 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-1960s and early-1970s houses (13% of 2,810 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 2,810 homes here are 13% 1965-1972, 9% pre-1900, 9% 1983-1992, 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 Cranleigh West

Two-storey extensions across Cranleigh West

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

CRANLEIGH

Two storey extension drawings for CRANLEIGH — conservation area designated in 1973 — dimensioned against the 3m and 7m limits and drawn to Waverley Borough Council's guidance.

Cranleigh

Two storey extension drawings for Cranleigh — civil parish within Cranleigh West — dimensioned against the 3m and 7m limits and drawn to Waverley Borough Council's guidance.

Which two-storey extensions are permitted development in Cranleigh West?

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

SchemePermitted development?Deciding limitWhat Waverley Borough 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 Cranleigh West two-storey extension

A fixed process built around how Waverley Borough Council validates and decides two-storey applications.

  1. 1

    Free approval check

    Send us your Cranleigh West postcode and garden depth. We measure the 7-metre boundary rule against your plot, confirm designation status, and score your odds against live Waverley Borough 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 Waverley Borough Council issues its decision.

Frequently asked questions

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

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 Cranleigh West, the 7-metre rule is what most commonly forces a full application to Waverley Borough Council.

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

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 Cranleigh West gardens this is decisive, and we measure it on survey before any design work rather than discovering it at validation. Waverley Borough Council is the decision-maker.

Can I build a two storey side extension in Cranleigh West?

Not under permitted development — two-storey side extensions always need a full application to Waverley Borough 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 Cranleigh West address specifically.

Will a two storey extension in Cranleigh West 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 Cranleigh West address specifically. Waverley Borough Council is the decision-maker.

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

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 Waverley Borough Council's planning decision, so we flag the notice period early and detail the junction on the drawings. This applies to your Cranleigh West address specifically.

Does a two storey extension need structural calculations in Cranleigh West?

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 Cranleigh West address specifically. Waverley Borough Council is the decision-maker.

How much do two storey extension plans in Cranleigh West cost?

We quote each Cranleigh West 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 Waverley Borough Council approves. Call 020 7864 7245 to start.

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