Wraparound Extension Drawings in Paddington W2
Fixed-fee, MCIAT-chartered wraparound extension drawings for Paddington (W2) homeowners — Westminster City Council validation and local constraints handled from the start.
Paddington (W2) in Westminster is dominated by wide stucco-fronted terraces that were built as single family houses and subdivided into flats generations ago. The Bayswater and Queensway conservation areas protect those uniform painted frontages, while the Hallfield Estate conservation area protects something quite different — a post-war modernist estate whose original design is the reason for the designation.
Two Article 4 directions shape most W2 projects. Westminster has removed permitted development rights for basement development, so the lower-ground excavations that are common under these tall terraces need a full planning application from the outset. The Class E to C3 direction in the Central Activities Zone does the same for commercial-to-residential conversion. Because so much of W2 is flats within those subdivided terraces, tenure usually matters as much as designation: flats carry no permitted development rights at all, so freeholder consent runs alongside the application. We confirm the tenure, the Article 4 position and which conservation area an address sits in before drawing to Westminster's guidance.
Planning in Paddington (W2): what to know before you apply
W2 is covered by Westminster's Article 4 direction removing permitted development rights for basement development, so lower-ground excavation needs a full planning application. The Class E to C3 direction applies in the Central Activities Zone, removing the right to convert commercial floorspace to residential without permission. Three conservation areas apply — Bayswater, Queensway and the Hallfield Estate — the first two protecting stucco frontages and the third a post-war modernist scheme. Much of the district's stock is flats within subdivided terraces, which have no permitted development rights regardless of designation.
Typical Paddington housing stock
Wide stucco-fronted terraces built as single houses around Bayswater and Queensway and long since subdivided into flats, alongside the Hallfield Estate — a listed post-war modernist scheme that is protected as a conservation area in its own right.
Streets we regularly draw for in Paddington
Praed Street · Sussex Gardens · Westbourne Terrace · Craven Road
What W2 is actually built of
Measured from 131 classified residential buildings in W2, not from a description of the area.
Paddington W2 housing mix
Residential building form across the W2 postcode district, from 131 classified buildings.
| Attached on more than one side | 77% |
|---|---|
| Attached on one side | 14% |
| Detached | 9% |
| Median building footprint | 91 m² |
| Addresses per buildingAbove about 2 means flats and maisonettes dominate | 6.86 |
| Buildings classified | 131 |
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.
Wraparound Extension Drawings for Paddington (W2) homes: the package and the process
A wraparound is assessed as one addition, so the drawings have to present it as one: a single proposed footprint with the rear depth and the side width both dimensioned, the roof drawn as it turns the corner, and the remaining garden shown on the site plan.
The corner is where the technical work sits. Two roof planes and two structural spans meet at the return, drainage has to get round it, and the internal opening is usually wide enough to need a designed frame rather than a single beam. We resolve that junction on the drawings before it becomes a question on site.
A wraparound needs both a rear garden and a side alley, which in practice means a terrace or end-of-terrace with an outrigger. Where only one of the two exists, the honest answer is a rear extension or a side return — the combined footprint has nowhere to turn the corner.
What makes a wraparound extension different from a rear or side return alone?
A rear extension adds depth at the back of the house; a side return adds width down the alley; a wraparound does both at once, so the new floor area turns the corner of the original building rather than sitting against just one wall. The result is typically the largest open-plan space a single-storey extension can deliver, but it also means more of the original external wall is removed and more of the roof is new, which raises the structural and drainage stakes compared with either extension on its own. Homeowners who start out planning a rear extension or a side return alone often move to a wraparound once they see how little extra it costs to combine the two, since much of the groundwork, roof structure and glazing is shared between them rather than duplicated.
Do wraparound extensions need full planning permission in London?
Almost always, yes. Permitted development allowances are calculated on combined additions to the original house, and a wraparound's depth plus width together generally exceed the volume and footprint limits that apply to a rear extension or side extension considered separately. A Lawful Development Certificate route is rarely viable for a genuine wraparound.
Conservation area status and Article 4 directions, common across the terraced streets where wraparound extensions are most popular, remove permitted development rights further still, so we design every wraparound on the assumption it will go through full householder planning.
Structural design for a wraparound extension
Because the new space turns a corner, the structural frame has to work as one continuous system rather than two independent extensions bolted together.
- A continuous steel or ring-beam frame carrying the roof around the internal corner where the rear and side elements meet
- A glazed roof lantern or rooflight strip often placed at the corner junction, where natural light reaches deepest into the combined plan
- Foundations for both the rear and side elements designed together, so they tie into the existing house consistently
- Bi-fold or sliding doors across the rear elevation, coordinated with the side glazing so the two elements read as one space
| Route | What it covers | Typical fee |
|---|---|---|
| Full planning permission | Required for almost all wraparound extensions given the combined footprint | Full Planning pack ~£1,600–£2,400 |
| Planning + Building Regulations (structural) | Combined pack including structural calculations for the L-shaped frame and drainage diversion | Planning + Building Regs pack ~£2,200–£3,850 |
| Rear extension alone (comparison) | Smaller single-storey addition, may qualify for permitted development | see Rear Extension Drawings, from £1,100 |
| Side return alone (comparison) | Widens the kitchen only, keeps garden depth unchanged | see Side Return Extension Drawings, from £1,400 |
Wraparound Extension Drawings in Paddington W2 — FAQs
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