Side Return Extension Drawings in Greenwich
Fixed-fee, MCIAT-chartered side return extension drawings for Greenwich homeowners — Royal Borough of Greenwich validation and local constraints handled from the start.
Greenwich stretches from the Georgian streets of West Greenwich and the Georgian-fringed heath at Blackheath — set against the Maritime Greenwich World Heritage Site — out to the Edwardian villas of Westcombe Park and the interwar and post-war suburbs of Eltham and Kidbrooke. The northern, historic core carries strong conservation and protected-view control, while the outer suburbs and newer riverside development along the Thames offer more generous plots for extensions and lofts. The right route depends heavily on where in the borough you are.
The character shifts street by street. Conservation areas at West Greenwich, Ashburnham Triangle, Blackheath, Westcombe Park, Eltham Park and Woolwich each carry design control over materials, rooflines and front elevations, and the sloping sites around Blackheath and the Greenwich hills shape what an extension can be. Protected views toward the Royal Observatory and across the river, together with Article 4 directions on HMO conversions in parts of the borough, mean the constraints on a heritage-led scheme in the historic core differ sharply from a straightforward suburban addition toward Eltham or Charlton.
We prepare Greenwich planning drawings tuned to the specific area — heritage-led applications around West Greenwich and Blackheath, and simpler extension and loft schemes toward Eltham and Kidbrooke — confirming the World Heritage Site setting and conservation designations for your address first. It is the same council-accepted drawing set an architect would prepare, usually at around 30% less, with a fixed fee agreed up front, a roughly seven-day drawing turnaround and free redraws until the Royal Borough of Greenwich approves. Most householder applications are decided within the statutory eight-week period once validated, so we draw to the council's validation checklist from the start.
Planning in Greenwich: what to know before you apply
A distinctive Greenwich consideration is the Maritime Greenwich World Heritage Site and its buffer zone, where the council protects townscape and long views toward the Royal Observatory — proposals nearby are assessed against that setting. Conservation-area control in West Greenwich, Blackheath and Westcombe Park, and Article 4 directions on HMO conversions in parts of the borough, also apply. We confirm what affects your address before drawing.
Typical Greenwich housing stock
Georgian and early-Victorian terraces around West Greenwich and Blackheath, Edwardian villas in Westcombe Park, interwar and post-war housing toward Eltham and Kidbrooke, and newer riverside development along the Thames.
Areas we regularly draw for in Greenwich
Greenwich · Blackheath · Westcombe Park · Charlton · Woolwich · Eltham · Kidbrooke
Side Return Extension Drawings for Greenwich homes: the package and the process
Every side return extension drawings we prepare for a Greenwich property is drawn to Royal Borough of Greenwich’s validation standards and tuned to the local constraints above. Here is what the drawing package covers and how the process runs from first survey to approval.
Behind most London terraces sits a narrow side alley, a metre or so wide, running from the front boundary to the back garden. A side return extension builds into that alley at ground floor, pushing the kitchen wall out to line up with the rest of the house and topping the new space with a glazed or pitched roof — often the single biggest transformation available to a galley kitchen without touching the garden at all. Because the alley typically sits hard against next door's boundary wall, this is also the extension type most likely to involve your neighbour directly, both through the planning application and through the Party Wall process.
DrawingsDirect draws side return extensions for full planning, coordinates the Party Wall paperwork your neighbour will need to see, and produces the structural calculations for the beam that carries the new roof, all under one MCIAT-chartered team and one fixed fee. If you are also extending the rear at the same time, our Wraparound Extension page covers the combined project.
Do I need planning permission for a side return extension in London?
Permitted development rights for side extensions are narrower than for rear extensions: they generally cap the extension at a single storey, restrict its width to no more than half the width of the original house, and limit its height. In practice, a full-depth side return running the length of a Victorian or Edwardian terrace usually exceeds one or more of these limits, so most side return projects are drawn and submitted as a full householder planning application.
Conservation area status and Article 4 directions, common across inner London terraces, remove permitted development rights for side extensions entirely in many streets, reinforcing the need for a planning application. We check your property's status before drawing.
What does a side return extension involve?
A side return infills the alley at ground floor level, structurally opening the original flank wall of the kitchen into the new space so the two areas read as one room. Unlike a rear extension, which is bounded on three sides by your own garden, a side return is bounded on one long side by the neighbouring property, which shapes almost every decision in the design, from where the roof glazing sits to how deep the new foundations need to go.
- New flank wall built out to align with the rear of the house, following the boundary line
- Original external wall between kitchen and alley opened up and supported on a steel or glulam beam
- Roof over the new space either glazed in full, glazed in a strip along the boundary for a 'light well' effect, or pitched and tiled to match the main roof
- Kitchen re-planned across the combined footprint, often incorporating an island once the room widens
| Package | What it covers | Typical fee |
|---|---|---|
| Side return, planning only | Full householder planning application drawings for the infill | Full Planning pack ~£1,600–£2,400 |
| Side return, planning + Building Regulations | Adds structural calculations, Party Wall drawings and construction detail | Planning + Building Regs pack ~£2,200–£3,850 |
| Side return + rear extension (wraparound) | Combines both extensions into one L-shaped ground floor | see Wraparound Extension Drawings |
| Measured survey only | A measured existing floor-plan set for your own architect, surveyor or builder | from £450 |
Side Return Extension Drawings across Greenwich
Side Return Extension Drawings in Greenwich — FAQs
How much does a side return extension cost to design in London?+
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How long does a side return extension take to design and approve?+
Do I need planning permission for an extension in Greenwich?+
How does the Maritime Greenwich World Heritage Site affect my project?+
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