
Double Storey Extension Drawings in Rush Green RM7
Fixed-fee, MCIAT-chartered double storey extension drawings for Rush Green (RM7) homeowners — London Borough of Havering validation and local constraints handled from the start.
Rush Green (RM7) is an interwar residential suburb straddling the boundary between the London Boroughs of Havering and Barking & Dagenham along Rush Green Road, built up largely in the 1920s and 1930s with semi-detached housing and now anchored by Queen's Hospital nearby. Most householder projects here are extensions or lofts on those cohesive interwar semis, so the drawings have to sit comfortably within a consistent, planned streetscape.
There is no conservation area covering the Rush Green part of RM7 — that is a genuine, verified fact, not an omission. Its planning character is instead shaped by the uniformity of the interwar semi-detached layout and by the London Borough of Havering's householder design expectations, which lean on keeping the paired-house symmetry, original materials and roof forms intact. We treat that suburban cohesion, rather than a conservation designation, as the reference point when we design an extension.
Demand for rear extensions, side extensions and loft conversions runs steadily across roads like Sylvan Avenue, Kings Avenue and Whalebone Grove, where interwar semis sit on regular plots. Because the borough boundary runs through the suburb, we confirm which authority your property falls in and check its permitted-development position against Havering's borough-wide controls first, then prepare drawings that either stay within permitted development or are ready to validate as a full householder application.


Planning in Rush Green (RM7): what to know before you apply
Because Rush Green is a consistent interwar suburb of semi-detached houses, Havering assess extensions against the steady street rhythm and paired-house symmetry, so matching original brick, render and roof form and respecting the shared building line matters alongside the numbers. There is no conservation area and no local Article 4 direction in the Rush Green part of RM7, so many houses retain permitted development rights for rear and loft work — but modest plots, shared party walls and the Havering–Barking & Dagenham boundary running through the suburb mean depth, height, neighbour impact and confirming the correct authority are the points a householder application is judged on.
Typical Rush Green housing stock
Predominantly interwar semi-detached houses on planned suburban roads, with postwar and modern infill on regular plots. Those consistent interwar semis, on regular plots with front and rear gardens, are what drive most of the rear-extension, side-extension and loft-conversion work across the area.
Streets we regularly draw for in Rush Green
Mill Lane · East Road · Crow Lane · Whalebone Grove · Hainault Road · Kings Avenue · Sylvan Avenue · Albany Road · Gordon Road · Millbrook Gardens · Whalebone Avenue · Burchett Way
Double Storey Extension Drawings for Rush Green (RM7) homes: the package and the process
Every double storey extension drawings we prepare for an Rush Green property is drawn to London Borough of Havering’s validation standards and tuned to the RM7 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 Rush Green RM7 — FAQs
How much does a double storey extension cost to design in London?+
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Will a double storey extension overlook my neighbour's garden?+
Do I need an architect for a double storey extension?+
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Do I need planning permission to extend a house in Rush Green?+
Is Rush Green in a conservation area?+
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