Rear extension on a late-Victorian artisan terrace in Sands End SW6 near Imperial Wharf, London Borough of Hammersmith and Fulham

Sands End · SW6 · Hammersmith & Fulham

Rear Extension Drawings in Sands End SW6

Fixed-fee, MCIAT-chartered rear extension drawings for Sands End (SW6) homeowners — London Borough of Hammersmith & Fulham validation and local constraints handled from the start.

Sands End (SW6) is Fulham's riverside corner, where grids of late-Victorian artisan terraces meet the modern Imperial Wharf development, in the London Borough of Hammersmith & Fulham. The character is genuinely mixed, so projects run from side-return and rear extensions and lofts on the terraces to internal alterations and fit-outs in the newer riverside flats.

The Sands End and Imperial Square & Gasworks conservation areas protect the historic terraced core and the area's industrial-riverside heritage, with Hurlingham and Moore Park at the edges, so frontage and roofline changes on the older houses are controlled. Flat alterations bring freeholder consent and party-wall matters on top of the planning position, so we establish whether an address is period house or leasehold flat before drawing to Hammersmith & Fulham's standards.

Proposed floor plan

Sands End SW6

Sands End (SW6) — planning at a glance

Council: London Borough of Hammersmith & Fulham
Postcode district: SW6
Planning portal: View the Hammersmith & Fulham planning portal
Housing stock: A mixed riverside district — grids of late-Victorian artisan terraces around Sands End Lane and Hugon Road sitting alongside the modern Imperial Wharf flats — so the work ranges from side-return and rear house extensions to leasehold flat alterations and fit-outs.
Article 4: London Borough of Hammersmith & Fulham does not publish its Article 4 directions to the national planning register, so permitted development rights in Sands End (SW6) can’t be confirmed from open data alone — we check the direction schedule with the council before recommending a route, as part of the fixed fee. No householder Article 4 direction is published for SW6 Sands End — the Sands End and Imperial Square & Gasworks conservation areas are the defining local controls.
Conservation: Sands EndHurlinghamImperial Square & GasworksMoore Park
Sample streets: Hugon Road · Breer Street · Dymock Street · Daisy Lane
Local constraints: Sands End conservation area covering the historic terraced core, where frontages and rooflines are controlledImperial Square & Gasworks conservation area reflecting the area's industrial-riverside heritage near Imperial WharfMix of period houses and modern leasehold flats, where flat alterations bring freeholder consent and party-wall considerations separate from planningHurlingham and Moore Park conservation areas bleeding in across the wider SW6 setting near the river

Planning in Sands End (SW6): what to know before you apply

SW6 Sands End has no published householder Article 4 direction, but the Sands End and Imperial Square & Gasworks conservation areas cover the terraced core and riverside heritage, with Hurlingham and Moore Park nearby, so frontage and roofline changes are controlled. Modern flats do not carry the permitted development rights of houses, so alterations there are assessed as full planning alongside freeholder consent.

Typical Sands End housing stock

A mixed riverside district — grids of late-Victorian artisan terraces around Sands End Lane and Hugon Road sitting alongside the modern Imperial Wharf flats — so the work ranges from side-return and rear house extensions to leasehold flat alterations and fit-outs.

Streets we regularly draw for in Sands End

Hugon Road · Breer Street · Dymock Street · Daisy Lane

What SW6 is actually built of

Measured from 530 classified residential buildings in SW6, not from a description of the area.

Sands End SW6 housing mix

Residential building form across the SW6 postcode district, from 530 classified buildings.

Attached on more than one side	85%
Attached on one side	13%
Detached	2%
Median building footprint	72 m²
Addresses per buildingAbove about 2 means flats and maisonettes dominate	2.7
Buildings classified	530

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.

Rear Extension Drawings for Sands End (SW6) homes: the package and the process

Depth is the number the application turns on, and it has to be measured from the original rear wall of the house rather than from whatever is there now. The drawings carry that dimension, the eaves and ridge heights, the position of any rooflight, and the boundary distances on both sides.

Where the scheme goes beyond the standard allowance and relies on the larger home extension route, the drawings serve a second purpose: they are what the council sends to the neighbours during the consultation. A clear, dimensioned proposed elevation answers the objection about overshadowing before it is made.

Depth is limited by the plot as much as by the rules. A long garden behind a terrace can take the full allowance, while a short one runs out before the rules do — and on a semi or detached house the same depth reads very differently from the boundary.

Do I need planning permission for a rear extension in London?

Many single-storey rear extensions qualify as permitted development, meaning no planning application is needed, provided depth, height and materials stay within set limits. That changes if your property sits in a conservation area or is subject to an Article 4 direction, both of which can remove permitted development rights across a street or borough — in that case a full householder planning application is required regardless of size.

Even where an extension qualifies, most homeowners obtain a Lawful Development Certificate to confirm that status in writing before building — useful for mortgage lenders, buyers and Building Control. We check your property against your borough's constraints before recommending a route.

How deep can a single-storey rear extension go?

Depth is the main constraint on a rear extension, and it depends on your house type and whether you use standard permitted development or the larger home extension scheme.

Permitted development

Standard permitted development allows a single-storey rear extension up to 3 metres deep for terraced and semi-detached houses, or 4 metres for detached houses, generally with eaves height limited to match or stay close to the existing house.

Larger home extension scheme

The prior-approval scheme extends this to 6 metres for terraced and semi-detached houses and 8 metres for detached houses. Your council writes to affected neighbours; if none object within the notification period, approval follows without a full planning application. If an objection is raised, the council assesses the impact on neighbouring light and outlook itself, rather than automatically refusing, so a well-considered design still has a good chance of approval.

Designing the kitchen-diner: rooflights, bi-folds and daylight

Most rear extensions exist to create one open-plan kitchen, dining and living space, so the drawing work focuses on getting light and flow right within the depth you are allowed.

Structural opening sized for bi-fold or sliding doors across most of the rear elevation
Rooflights or a roof lantern positioned to light the centre of the room, away from the shadow line of the main house
Open-plan layout tested against the 45-degree rule, which protects daylight to your neighbours' windows and can limit how close a flank wall or roof comes to the boundary
Floor build-up and threshold detail coordinated so the new floor meets the existing one without a step

Rear extension routes at a glance
Route	When it applies	Typical fee
Permitted development (Lawful Development Certificate)	Depth within 3m (terraced/semi) or 4m (detached), height and materials within PD limits	PD/LDC pack ~£950–£1,450
Larger home extension (prior approval)	Depth up to 6m (terraced/semi) or 8m (detached), with neighbour notification	from £1,100
Full householder planning permission	Extension exceeds PD/larger-home limits, or the property is in a conservation area with an Article 4 direction	Full Planning pack ~£1,600–£2,400
Planning + Building Regulations (structural)	Combined planning and construction-ready pack with structural calculations for the opening and roof	Planning + Building Regs pack ~£2,200–£3,850

Sheet from a rear extension drawings package drawn for a Sands End property in SW6, showing the existing and proposed arrangement at scale — A sheet from the rear extension drawings package we submit to London Borough of Hammersmith & Fulham for Sands End (SW6) properties.

Also in Sands End SW6

Planning Permission Planning Drawings Architectural Drawings Building Regulations Drawings Loft Conversion Drawings Rear Extension Drawings across Hammersmith & Fulham Rear Extension Drawings across London

FAQ

Rear Extension Drawings in Sands End SW6 — FAQs

How much does a rear extension cost to design in London?+

Rear extension drawings start from £1,100, with the final fee set by the route your extension takes — permitted development, prior approval or full planning — and whether you need building regulations and structural calculations bundled in. The fee is fixed and agreed upfront.

Do I need an architect for a rear extension?+

No. DrawingsDirect is an MCIAT-chartered architectural technologist practice, producing the same council-accepted drawings as an architect for a fixed fee typically around 30% lower.

How long does it take to get rear extension drawings?+

Drawings are typically ready around 7 days from survey. Once submitted, councils have a statutory 8-week period to determine a standard householder planning application.

What is the 45-degree rule?+

It is a daylight test many London councils apply to check that a rear extension does not block too much light to a neighbour's nearest window, measured as a line drawn at 45 degrees from that window. We check it before submission, not after a refusal.

Will I need a Party Wall Agreement for a rear extension?+

Only if your foundations or new walls sit on or near the boundary with a neighbouring property. A straightforward rear extension set within your own plot often does not trigger the Party Wall etc. Act 1996, unlike a Side Return or Wraparound extension, which usually does.

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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