
Double Storey Extension Drawings in Sands End SW6
Fixed-fee, MCIAT-chartered double storey 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.


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
Double Storey Extension Drawings for Sands End (SW6) homes: the package and the process
Every double storey extension drawings we prepare for an Sands End property is drawn to London Borough of Hammersmith & Fulham’s validation standards and tuned to the SW6 constraints above. Here is what the drawing package covers and how the process runs from first survey to approval.
A double storey extension builds a second floor above a single-storey side or rear addition, typically adding a bedroom and bathroom upstairs over a widened kitchen or reception room below. Because the foundations and roof of a single-storey extension already carry most of the fixed cost of building, adding a floor on top is often the most cost-effective way to gain two rooms rather than two separate projects. The trade-off is scrutiny: a two-storey addition sits closer to eye level with neighbouring windows and gardens, so councils examine massing, roofline and boundary distance more closely than they would a single-storey extension.
DrawingsDirect draws double storey side and rear extensions for full planning and building regulations, with structural calculations for the additional floor load and foundations produced in-house by our MCIAT-chartered team, on a fixed fee. If a single storey is enough, see our Rear Extension and Side Return Extension pages, or combine both with a Wraparound if you are extending sideways as well as up.
Do I need planning permission for a double storey extension in London?
Almost always. Permitted development rights for two-storey extensions are far more restrictive than for single-storey work, particularly on how close the new structure can come to a boundary and how closely its roof pitch and eaves height must match the existing house, so most double storey projects are drawn and submitted as full householder planning applications rather than relying on permitted development.
Where the property sits in a conservation area or is subject to an Article 4 direction, any remaining permitted development allowance for a second storey is typically removed entirely, reinforcing the need for a full application. We check your property's status and your borough's design guidance before drawing.
How do councils control the impact of a double storey extension on neighbours?
Because a second storey introduces new windows and massing at first-floor level, London boroughs apply design guidance aimed specifically at protecting neighbouring light, privacy and outlook.
- The 45-degree rule, tested at neighbouring windows, to check the extension does not block an unreasonable amount of daylight
- A common design expectation that a two-storey side extension is set in roughly 1 metre from the shared boundary, rather than built hard against it
- A first floor commonly set back from the ground floor front elevation, so the upper storey reads as subordinate to the main house from the street
- Obscure or high-level glazing on flank walls facing directly into a neighbour's garden or windows, to limit overlooking
| Option | What it adds | Typical fee |
|---|---|---|
| Single-storey rear extension | A ground-floor kitchen-diner only, may qualify for permitted development | see Rear Extension Drawings, from £1,100 |
| Double storey side or rear extension | Two rooms across two floors, usually needs full planning | Full Planning pack ~£1,600–£2,400 |
| Double storey + Building Regulations (structural) | Combined pack including structural calculations for two-floor loads and foundations | Planning + Building Regs pack ~£2,200–£3,850 |
| Wraparound (rear + side return) | Combines two single-storey extensions into one L-shaped ground floor | see Wraparound Extension Drawings, from £2,200 |
Double Storey Extension Drawings in Sands End SW6 — FAQs
How much does a double storey extension cost to design in London?+
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