MCIAT chartered drawings · Fixed fees across all 33 London boroughs
[email protected]020 7864 7245WhatsApp

Free 2026 London Planning Report — Side Return Extension Drawings in Isle of Dogs E14

Flat reconfiguration and conversion drawings on the Isle of Dogs E14, Tower Hamlets Council Docklands
Isle of Dogs · E14 · Tower Hamlets

Side Return Extension Drawings in Isle of Dogs E14

Fixed-fee, MCIAT-chartered side return extension drawings for Isle of Dogs (E14) homeowners — London Borough of Tower Hamlets validation and local constraints handled from the start.

Free Isle of Dogs planning assessment

Tell us your Isle of Dogs (E14) address and project. A fixed quote and free planning appraisal land within one working day.

No obligation · No spam · Reply within 1 working day

The Isle of Dogs in E14 is defined by Canary Wharf's towers and modern new-build flats, with surviving dock-side terraces at Coldharbour and Chapel House, so most schemes are flat reconfigurations, change-of-use and layout improvements rather than extensions.

The high-density townscape and dockland conservation pockets require careful daylight, overlooking and character judgement, so we prepare drawings to Tower Hamlets Council's standard for reconfiguration and change-of-use applications.

Flat reconfiguration and conversion drawings on the Isle of Dogs E14, Tower Hamlets Council Docklands
Isometric illustration of a Isle of Dogs E14 home side return extension drawings design
Proposed floor plan
Isle of Dogs E14

Planning in Isle of Dogs (E14): what to know before you apply

No published householder Article 4 direction governs these streets, but the Coldharbour and Chapel House conservation areas protect the historic dock terraces, and the dense flatted context means overlooking and amenity are the key planning tests.

Typical Isle of Dogs housing stock

The Isle of Dogs is dominated by Canary Wharf towers and modern new-build flats, with pockets of period and dock-worker terraces at Coldharbour and Chapel House. Most work is internal reconfiguration and change-of-use within the flatted stock rather than external extension.

Streets we regularly draw for in Isle of Dogs

East Ferry Road · Millharbour · Glengall Grove · Stewart Street

What E14 is actually built of

Measured from 390 classified residential buildings in E14, not from a description of the area.

Isle of Dogs E14 housing mix

Residential building form across the E14 postcode district, from 390 classified buildings.

Attached on more than one side69%
Attached on one side24%
Detached8%
Median building footprint50 m²
Addresses per buildingAbove about 2 means flats and maisonettes dominate4.62
Buildings classified390

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.

Side Return Extension Drawings for Isle of Dogs (E14) homes: the package and the process

A side return is a structural drawing as much as a planning one. Removing the original flank wall to open the kitchen into the infill needs a beam and a padstone detail, and the new roof has to be drawn where it meets both the existing rear elevation and the boundary wall.

The boundary is the sensitive line. The drawings set out where the new wall sits relative to it, how the roof drains without discharging next door, and where rooflights fall so the officer can see the room is lit without overlooking. That detail is also what your party wall surveyor will ask for.

The extension only exists where the alley does. Mid-terrace and end-of-terrace houses with a rear outrigger are the classic case; a semi with a flank path is a different scheme with different boundary questions; and a detached house has no side return to infill at all.

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

Will I need a Party Wall Agreement for a side return extension?

Almost certainly. Because the new side wall is built on or immediately against the boundary with the neighbouring property, the Party Wall etc. Act 1996 applies, and your neighbour must be formally notified before work starts. We prepare the drawings and dimensions your Party Wall surveyor needs, and time the notice period so it runs alongside, rather than after, your planning application.

Side return project options
PackageWhat it coversTypical fee
Side return, planning onlyFull householder planning application drawings for the infillFull Planning pack ~£1,600–£2,400
Side return, planning + Building RegulationsAdds structural calculations, Party Wall drawings and construction detailPlanning + Building Regs pack ~£2,200–£3,850
Side return + rear extension (wraparound)Combines both extensions into one L-shaped ground floorsee Wraparound Extension Drawings
Measured survey onlyA measured existing floor-plan set for your own architect, surveyor or builderfrom £450
Sheet from a side return extension drawings package drawn for a Isle of Dogs property in E14, showing the existing and proposed arrangement at scale
A sheet from the side return extension drawings package we submit to London Borough of Tower Hamlets for Isle of Dogs (E14) properties.

Also in Isle of Dogs E14

Planning PermissionPlanning DrawingsArchitectural DrawingsBuilding Regulations DrawingsLoft Conversion DrawingsSide Return Extension Drawings across Tower HamletsSide Return Extension Drawings across London
FAQ

Side Return Extension Drawings in Isle of Dogs E14 — FAQs

How much does a side return extension cost to design in London?+
Side return drawings start from £1,400. The final fee depends on whether you commission planning drawings alone or a combined planning and building regulations package with structural calculations, all fixed and agreed upfront.
Can I build a side return under permitted development?+
Rarely for a full-width, full-depth side return. Permitted development for side extensions is limited on width and storeys, and most Victorian and Edwardian terraces sit in conservation areas that remove these rights anyway, so a full planning application is the usual route. We still check your specific property first, since some semi-detached and detached houses outside conservation areas retain more generous side-extension allowances.
When do I need to serve Party Wall notice on my neighbour?+
Before work starts, and ideally once your drawings and structural design are settled, since the notice needs accurate dimensions. We can prepare the supporting drawings alongside your planning application so both processes run in parallel.
Do I need an architect for a side return extension?+
No. DrawingsDirect is an MCIAT-chartered architectural technologist practice, so you get the same council-accepted drawings as an architect, for a fixed fee typically around 30% lower, with structural calculations produced in-house.
How long does a side return extension take to design and approve?+
Drawings are typically ready around 7 days from survey. A householder planning application then has a statutory 8-week determination period, running alongside your Party Wall notice period.
Do I need planning permission for an extension in Tower Hamlets?+
Frequently, yes. A high proportion of the borough sits within a conservation area — Spitalfields, Wapping Pierhead and Tredegar Square among them — where permitted development is removed. On unlisted homes outside a conservation area a rear extension may still qualify. We check your address against the designations first and can confirm permitted development with a Lawful Development Certificate where it qualifies.
My Tower Hamlets property is listed — what consent do I need?+
Listed-building consent is usually required alongside or instead of planning permission, and internal as well as external changes can be controlled. The Georgian terraces around Spitalfields carry a high density of listed buildings. We screen listing status for your address first and prepare the heritage-led drawings and justification the council expects.
Can you handle a warehouse or riverside conversion in Wapping or Limehouse?+
Yes. The Wapping and Limehouse riverside carries its own townscape, conservation and flood-zone context, and conversions there are assessed against design control near the Thames. We prepare drawings that respond to that setting and evidence the flood-risk considerations, confirming the constraints for your specific building before design begins.
How long does Tower Hamlets Council take to decide?+
Tower Hamlets determines most householder applications within the statutory eight-week period once validated; listed-building, conservation and riverside cases can involve additional consultation. We prepare submissions to the council's validation and design standards to avoid the drawing queries that cause most delays.
How much do planning drawings cost in Tower Hamlets?+
We agree a fixed fee before we start, typically around 30% below an architect's fee for the same council-accepted drawings, with free redraws until the council approves. A conservation-area extension, a listed-building scheme and a riverside conversion differ in the evidence required, so we quote once we have seen your address and project rather than by the hour.
Free Fixed Quote

Get your free Isle of Dogs planning assessment

Tell us your Isle of Dogs (E14) address and ambition — we'll confirm feasibility, local constraints and a fixed fee within one working day.