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Free 2026 London Planning Report — House Extension Drawings in Hammersmith & Fulham

Open-plan kitchen extension of the kind commonly added to Hammersmith & Fulham's Fulham and Brackenbury terraces
Hammersmith & Fulham · London

House Extension Drawings in Hammersmith & Fulham

Fixed-fee, MCIAT-chartered house extension drawings for Hammersmith & Fulham homeowners — London Borough of Hammersmith & Fulham validation and local constraints handled from the start.

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Hammersmith & Fulham is classic terraced West London. Long Victorian and Edwardian grids across Fulham and Shepherd's Bush make side-return and rear extensions, loft conversions and basements the most requested projects, and the council's design expectations for these house types are well established. Around them sit the distinctive red-brick 'Lion houses' of the Peterborough Estate, Edwardian mansion blocks, and newer riverside development along the Thames through Sands End, with Parsons Green, Brook Green, Hammersmith and White City each adding their own grain to the borough.

The controls that matter here are layered. The council operates a basement policy requiring a basement impact assessment for below-ground works, covering structural stability, drainage and groundwater, and Thames-side flood-zone considerations apply near the river. Strong conservation control runs across Bishops Park, Peterborough Estate, Brackenbury, Ravenscourt Park, Bradmore and Crabtree, and Article 4 directions remove permitted development for HMO conversions and, in conservation areas, some basement and frontage works. We confirm exactly which of these apply to your exact address before drawing.

We draw Hammersmith & Fulham planning applications to the borough's residential extension and basement guidance, coordinating structural calculations in-house so party-wall-sensitive terraces and below-ground schemes are handled cleanly and are complete when submitted. On the dense grids we check permitted development first and confirm it with a Lawful Development Certificate where a side-return or rear extension qualifies, and on the Peterborough Estate we design to the 'Lion houses' character. The fee is fixed and agreed up front, typically around 30% below an architect's charge for the same council-accepted drawings, with free redraws until the council approves. Most householder applications are decided within the statutory eight-week period once validated, so we submit validation-first.

Open-plan kitchen extension of the kind commonly added to Hammersmith & Fulham's Fulham and Brackenbury terraces
Isometric illustration of a Hammersmith & Fulham home extension design
Proposed floor plan
Hammersmith & Fulham

Planning in Hammersmith & Fulham: what to know before you apply

Hammersmith & Fulham applies a basement policy requiring a basement impact assessment for below-ground works, and controls design closely within its conservation areas and on the Peterborough Estate. Article 4 directions remove permitted development for HMO conversions in parts of the borough. We confirm the constraints for your exact address before drawing.

Typical Hammersmith & Fulham housing stock

Long grids of Victorian and Edwardian terraces across Fulham and Shepherd's Bush, the distinctive red-brick 'Lion houses' of the Peterborough Estate, Edwardian mansion blocks, and newer riverside development along the Thames.

Areas we regularly draw for in Hammersmith & Fulham

Fulham · Shepherd's Bush · Hammersmith · Parsons Green · Sands End · Brook Green · White City

House Extension Drawings for Hammersmith & Fulham homes: the package and the process

Every house extension drawings we prepare for a Hammersmith & Fulham property is drawn to London Borough of Hammersmith & Fulham’s validation standards and tuned to the local constraints above. Here is what the drawing package covers and how the process runs from first survey to approval.

A well-drawn extension adds space and value while sailing through the council; a poorly-drawn one triggers objections and refusals. DrawingsDirect draws rear, side-return, wraparound, double-storey and basement extensions for London homes — sized to your borough's tolerances, with daylight and neighbour impact considered before the planners raise them.

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.

Typical London extension drawing packages
ExtensionTypical routePackageFee from
Single-storey rearPermitted development / householderPlanning + building regs£1,100
Side-returnHouseholder planningPlanning + building regs + structural£1,600
WraparoundHouseholder planningFull package + structural£2,200
Double-storeyHouseholder planningFull package + structural£2,400
Local Areas

House Extension Drawings across Hammersmith & Fulham

Fulham SW6House Extension Drawings in Fulham, SW6Hammersmith W6House Extension Drawings in Hammersmith, W6Shepherds Bush W12House Extension Drawings in Shepherds Bush, W12West Kensington W14House Extension Drawings in West Kensington, W14Parsons Green SW6House Extension Drawings in Parsons Green, SW6Sands End SW6House Extension Drawings in Sands End, SW6White City W12House Extension Drawings in White City, W12Brook Green W6House Extension Drawings in Brook Green, W6

Also in Hammersmith & Fulham

Planning PermissionPlanning DrawingsArchitectural DrawingsBuilding Regulations DrawingsLoft Conversion DrawingsHouse Extension Drawings across London
FAQ

House Extension Drawings in Hammersmith & Fulham — FAQs

How far can I extend without planning permission in London?+
Under permitted development, single-storey rear extensions can reach 3m (terraced/semi) or 4m (detached), or up to 6–8m under the prior-approval larger-home scheme — but conservation areas and Article 4 directions can remove these rights. We check your property first.
Do extension drawings include structural calculations?+
Our full package includes structural drawings and calculations coordinated in-house, so your builder can price and build without waiting on an engineer.
How long do extension drawings take?+
Typically about 7 days from survey to a full drawing set delivered to your online portal.
Will my rear extension need a party wall agreement?+
If you build up to or on a shared boundary, excavate near a neighbour's foundations, or cut into a party wall for a steel, the Party Wall etc. Act 1996 usually applies. Our drawings show the works clearly so a party wall surveyor — or your neighbour — can see exactly what is proposed, which keeps that process quick.
Can I extend a house in a conservation area?+
Yes, but conservation areas and Article 4 directions commonly remove permitted development for rear and side extensions, so the work needs a full householder application designed to the council's heritage guidance. We confirm your property's designation before recommending a route.
Do I need planning permission for a side-return extension in Hammersmith & Fulham?+
On the Victorian and Edwardian terraces of Fulham and Shepherd's Bush a single-storey side-return or rear extension can fall within permitted development, so a full application isn't always required. Conservation areas across Fulham, Brackenbury and Ravenscourt Park, and the Peterborough Estate, restrict this. We check your street's designation first and can confirm permitted development with a Lawful Development Certificate.
Will I need a Basement Impact Assessment for a basement in Hammersmith & Fulham?+
Likely, yes. The council applies a basement policy requiring a basement impact assessment for below-ground works, covering structural stability, drainage and groundwater. Basement extensions are common on these terraces, so if you are considering one we flag the requirement early and coordinate the structural input so the application is complete when submitted.
What is special about the Peterborough Estate 'Lion houses'?+
The Peterborough Estate's distinctive red-brick 'Lion houses' carry strong conservation control over their external character, so alterations are expected to respect the estate's materials and detailing. We design to that character and prepare a full householder application where permitted development doesn't apply, which is the reliable route to approval there.
How long does Hammersmith & Fulham take to decide?+
The council determines most householder applications within the statutory eight-week period once validated; basement and conservation cases can involve additional consultation. Because the terraces are party-wall-sensitive, we prepare submissions to the borough's residential extension and basement guidance to avoid the drawing queries that cause most delays.
How much do planning drawings cost in Hammersmith & Fulham?+
We agree a fixed fee before we start, typically around 30% below an architect's fee for the same council-accepted drawings, with free redraws until the council approves. A side-return, a loft and a basement differ in complexity, so we quote once we have seen your address and project rather than by the hour.
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