Double Storey Extension Drawings in Bedford Park W4
Fixed-fee, MCIAT-chartered double storey extension drawings for Bedford Park (W4) homeowners — London Borough of Hounslow validation and local constraints handled from the start.
Bedford Park is the original garden suburb — a jewel of 1870s-80s Queen Anne architecture by Norman Shaw and his circle, and one of the most protected residential quarters in London. Here the work is precise conservation-led design: discreet rear extensions, loft and internal reconfiguration, and like-for-like restoration of the red-brick, white-joinery character, rather than anything that alters the celebrated street scene.
With an Article 4 direction removing normal permitted-development rights and a great many listed houses, almost every external change needs planning consent and often listed building consent too. We prepare drawings to that standard for the London Borough of Hounslow — accurate existing surveys, matched historic detailing and a clear heritage rationale — so the scheme is defensible from the first submission.
Planning in Bedford Park (W4): what to know before you apply
Bedford Park is covered by an Article 4 direction and contains numerous listed buildings, so permitted development rights are largely withdrawn and external alterations — windows, doors, roofs, boundary walls — normally require planning and frequently listed building consent. Design must match the original Queen Anne detailing exactly.
Typical Bedford Park housing stock
Bedford Park is the celebrated 1870s-80s 'first garden suburb' of Norman Shaw-influenced Queen Anne houses in red brick with white-painted joinery, tile-hung gables and distinctive fenestration. Many homes on Bath Road, Woodstock Road and the surrounding streets are listed, so work centres on sensitive rear extensions and careful internal reconfiguration rather than visible external change.
Streets we regularly draw for in Bedford Park
Park Road · Church Street · Southfield Road · Acton Lane
Double Storey Extension Drawings for Bedford Park (W4) homes: the package and the process
Every double storey extension drawings we prepare for an Bedford Park property is drawn to London Borough of Hounslow’s validation standards and tuned to the W4 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 Bedford Park W4 — FAQs
How much does a double storey extension cost to design in London?+
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Do I need planning permission for an extension in Hounslow?+
What extra control applies in Bedford Park?+
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