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
What RM7 is actually built of
Measured from 270 classified residential buildings in RM7, not from a description of the area.
Rush Green RM7 housing mix
Residential building form across the RM7 postcode district, from 270 classified buildings.
| Attached on more than one side | 41% |
|---|---|
| Attached on one side | 54% |
| Detached | 4% |
| Median building footprint | 59 m² |
| Addresses per buildingAbove about 2 means flats and maisonettes dominate | 1.26 |
| Buildings classified | 270 |
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.
Double Storey Extension Drawings for Rush Green (RM7) homes: the package and the process
At first-floor level the drawings have to answer for daylight, privacy and massing. That means proposed elevations showing every new window with its position relative to the boundary, a section taken through the extension and the neighbouring building, and a roof form drawn to sit below the existing ridge rather than compete with it.
We draw the neighbouring property alongside your own, because the officer's assessment is comparative — the effect on their windows and outlook is the test. Setting the first floor in from the boundary, and showing that set-back as a dimension, resolves most objections before consultation begins.
At first floor the boundary relationship decides everything. A detached house has room to set the addition in on both sides; a semi has one shared wall and one clear flank; a mid-terrace can usually only go to the rear, where the effect on both neighbours has to be drawn.
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
Matching the roofline and materials
Planning officers assess a double storey extension heavily on how convincingly it reads as part of the original house rather than an addition bolted onto the side. Our drawings match ridge height, roof pitch, eaves detail and brick or render finish to the existing building wherever the design brief allows, which is consistently one of the strongest factors in securing approval without delay or redesign. Where a subtly contrasting material is proposed instead — a different brick tone, or a zinc or slate roof against a tiled original — we set it out clearly on the elevations so the design intent reads as deliberate rather than a mismatch, which is how most London boroughs prefer a genuine design statement to be presented.
| 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?+
Do I need planning permission to add a second storey?+
Will a double storey extension overlook my neighbour's garden?+
Do I need an architect for a double storey extension?+
How long does it take to get double storey extension drawings?+
Do I need planning permission to extend a house in Rush Green?+
Is Rush Green in a conservation area?+
How much do planning and building-regulation drawings cost for a Rush Green extension?+
How long does Havering Council take to decide?+
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