House Extension Drawings in Notting Hill W11
Fixed-fee, MCIAT-chartered house extension drawings for Notting Hill (W11) homeowners — Royal Borough of Kensington and Chelsea validation and local constraints handled from the start.
Notting Hill (W11) in Kensington and Chelsea is built around its communal garden squares. The Norland and Avondale conservation areas protect that layout — mid-Victorian stucco terraces arranged so their rear elevations face a shared garden rather than individual private ones. That single fact changes the arithmetic of a rear extension here: the elevation you are altering is seen from a protected communal space, and it is assessed accordingly.
Kensington and Chelsea's Article 4 directions do the rest. Basement work has had its permitted development rights removed, so the deep lower-ground schemes W11 is known for need a full planning application from the outset. A second direction covers minor alterations in conservation areas including works to windows, so replacing windows on a stucco frontage needs permission in its own right. A third removes permitted development rights for commercial to residential conversion. Many W11 addresses are also flats within subdivided houses, which carry no permitted development rights regardless. We establish the garden-square context, the tenure and which directions apply before drawing to the borough's guidance.
Planning in Notting Hill (W11): what to know before you apply
W11 sits within the Norland and Avondale conservation areas, which protect a layout of mid-Victorian stucco terraces built around communal garden squares — so rear elevations face a shared protected garden and are assessed against that setting. Kensington and Chelsea's Article 4 directions remove permitted development rights for basements, for minor alterations in conservation areas including works to windows, and for commercial to residential conversion. Basement schemes and window replacement therefore both need a full planning application. Many addresses are flats within subdivided houses, which have no permitted development rights in any case.
Typical Notting Hill housing stock
Mid-Victorian stucco-fronted terraces laid out around communal garden squares, built as single houses and now a mix of whole houses and large subdivided flats.
Streets we regularly draw for in Notting Hill
Portobello Road · Lansdowne Road · Elgin Crescent · Clarendon Road
What W11 is actually built of
Measured from 146 classified residential buildings in W11, not from a description of the area.
Notting Hill W11 housing mix
Residential building form across the W11 postcode district, from 146 classified buildings.
| Attached on more than one side | 84% |
|---|---|
| Attached on one side | 13% |
| Detached | 3% |
| Median building footprint | 75 m² |
| Addresses per buildingAbove about 2 means flats and maisonettes dominate | 2.65 |
| Buildings classified | 146 |
Source: Ordnance Survey National Geographic Database (derived statistics). Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Extracted 2026-08-17.
House Extension Drawings for Notting Hill (W11) homes: the package and the process
Extension drawings are read for their dimensions. The proposed plan needs depth measured from the original rear wall — not from a previous extension — eaves and ridge heights taken from existing ground level, and the distance to each boundary marked. A site plan showing how much garden remains is what an officer reaches for when the amenity question comes up.
We draw the existing building accurately first, because everything else is measured from it. Where the original footprint has already been added to, that history goes on the drawing: it decides which allowances are still available and it is the first thing an officer checks against the council's own records.
The plot decides the extension type long before taste does. A mid-terrace has depth to work with and an alley if it is lucky; a semi has one clear flank; a detached house can go wide. Reading the building form first is what stops a design being drawn that the plot cannot take.
Which extension types do you draw?
Every London extension is shaped by the plot, the neighbours and the borough's design guidance. We draw them all.
Rear extension
A single-storey rear extension is often permitted development within depth limits — ideal for an open-plan kitchen-diner.
Side-return
Fills the alley beside a Victorian terrace, widening the ground floor without losing garden.
Wraparound
Combines a rear and side-return extension for a transformative ground floor, usually needing planning permission.
Double-storey
Adds space above and below, subject to tighter scale and neighbour-impact scrutiny.
Basement
Creates space downward where footprint is limited, with structural and party-wall care.
Do I need planning permission for a house extension in London?
Single-storey rear extensions within permitted development limits (up to 6m for terraced/semi-detached homes under the larger-home scheme, subject to neighbour consultation) may not need a full application. Wraparounds, double-storeys and anything in a conservation area usually do. We assess your plot and recommend the right route before drawing. The current depth, height and eaves limits are set out in full in the guide to planning permission for a rear extension, and where you would rather one practice ran the design, the application and the building-regulations stage together, Architectural Drawings covers that full scope.
How do you maximise the footprint the council will approve?
We know each borough's depth, height and daylight standards, so we design to the edge of what will be approved rather than guessing — and we check the 45-degree neighbour daylight rule and any rear building line before submission. Where a plot is tight we test a permitted-development scheme against a slightly larger householder application and show you the trade-off in space, cost and timescale, so the drawn scheme is the one that actually maximises value rather than just floor area.
| Extension | Typical route | Package | Fee from |
|---|---|---|---|
| Single-storey rear | Permitted development / householder | Planning + building regs | £1,100 |
| Side-return | Householder planning | Planning + building regs + structural | £1,600 |
| Wraparound | Householder planning | Full package + structural | £2,200 |
| Double-storey | Householder planning | Full package + structural | £2,400 |
House Extension Drawings in Notting Hill W11 — FAQs
How far can I extend without planning permission in London?+
Do extension drawings include structural calculations?+
How long do extension drawings take?+
Will my rear extension need a party wall agreement?+
Can I extend a house in a conservation area?+
Do I need planning permission for works in Kensington & Chelsea?+
Can I build a basement in Kensington & Chelsea?+
My home is listed — what consent do I need?+
How long does the Royal Borough take to decide?+
How much do planning drawings cost in Kensington & Chelsea?+
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