Rear extension on an interwar semi in Greenford UB6, planning drawings for Ealing Council approval

Greenford · UB6 · Ealing

Flat Conversion Drawings in Greenford UB6

Fixed-fee, MCIAT-chartered flat conversion drawings for Greenford (UB6) homeowners — London Borough of Ealing validation and local constraints handled from the start.

Greenford (UB6) is classic outer-west-London Metro-land: broad avenues of interwar semis with deep gardens, ideal for rear and wraparound kitchen extensions, loft conversions with rear dormers, and garage-to-room conversions. Most householder projects here fall squarely within permitted development or a straightforward Ealing Council householder application.

The one sensitivity is the Canalside conservation area on the neighbourhood's north-west flank near the Grand Union, where materials and rear massing get closer scrutiny. We prepare drawings that hold the interwar building line and gap-to-boundary rhythm Ealing's officers expect, and flag any canal-edge or former-industrial plot early so ground and drainage issues are designed out.

Proposed floor plan

Greenford UB6

Greenford (UB6) — planning at a glance

Council: London Borough of Ealing
Postcode district: UB6
Planning portal: View the Ealing planning portal
Housing stock: Greenford is dominated by 1920s-30s bay-fronted semis and short terraces laid out along wide suburban avenues, many with generous rear gardens and original hipped roofs. Nearer the Grand Union Canal and the old Rockware/Lyon works, plots give way to former industrial land and later flat-roofed infill.
Article 4: London Borough of Ealing does not publish its Article 4 directions to the national planning register, so permitted development rights in Greenford (UB6) can’t be confirmed from open data alone — we check the direction schedule with the council before recommending a route, as part of the fixed fee. No published householder Article 4 in Greenford; the main control is the canalside conservation area to the north-west and the industrial fringe along the Grand Union
Conservation: Canalside (north-west part)
Sample streets: Oldfield Lane North · The Fairway · Costons Avenue · Rockware Avenue
Local constraints: Canalside conservation-area control on the north-west edge affecting works visible from the Grand Union corridorInterwar semis where side-return and rear extensions must respect the established building line and gaps between pairsIndustrial and former-works land near the canal carrying potential contamination and drainage considerationsMature street trees on avenues such as The Fairway that may be TPO-protected

Planning in Greenford (UB6): what to know before you apply

No published householder Article 4 direction in Greenford, so most extensions and lofts run under permitted development or a standard Ealing householder application. Properties bordering the Canalside conservation area lose some permitted-development rights, and rear/side extension depths are assessed against the neighbouring semis' building line.

Typical Greenford housing stock

Greenford is dominated by 1920s-30s bay-fronted semis and short terraces laid out along wide suburban avenues, many with generous rear gardens and original hipped roofs. Nearer the Grand Union Canal and the old Rockware/Lyon works, plots give way to former industrial land and later flat-roofed infill.

Streets we regularly draw for in Greenford

Oldfield Lane North · The Fairway · Costons Avenue · Rockware Avenue

Flat Conversion Drawings for Greenford (UB6) homes: the package and the process

Every flat conversion drawings we prepare for an Greenford property is drawn to London Borough of Ealing’s validation standards and tuned to the UB6 constraints above. Here is what the drawing package covers and how the process runs from first survey to approval.

Converting a house into flats is one of the few residential projects in London that always needs planning permission, whatever the size of the property or the number of units created. Splitting a single dwelling into two or more self-contained homes is treated as development regardless of whether any external work is proposed, because the change affects how the building is used and how many households occupy it.

DrawingsDirect draws house-to-flats conversions from the first survey through to a submission-ready planning and building-regulations package. Sound insulation between units, separate escape routes, individual services and London's minimum space standards are designed in from the layout stage, not retrofitted once the council asks for them — which is a large part of why our schemes are approved first time.

Do I need planning permission to convert a house into flats?

Yes, always. Converting a single dwelling into two or more self-contained flats is a change from one home to several, and that subdivision is treated as development requiring a full planning application — there is no permitted development route that allows it, regardless of the property's size or whether the exterior changes at all. The application has to demonstrate that each flat meets space, layout, amenity and parking standards in its own right, not just that the building as a whole is being used sensibly.

Boroughs also weigh the loss of a family-sized house against their local housing policy, since converting a larger house into several flats reduces the stock of homes suited to families even as it adds smaller units. We take that policy context into account when advising on layout and unit numbers, rather than simply maximising the number of flats the floor area could technically support.

What sound insulation is required between flats?

Part E of the building regulations sets minimum sound insulation standards for the walls and floors separating flats, covering both airborne and impact sound. Where an existing house is subdivided, the drawings specify how the party floors and walls between units will be upgraded — additional layers, resilient bars, or a floating floor — and pre-completion sound testing is normally required before the flats can be signed off. Getting this detail right on the drawings from the outset matters, because retrofitting sound insulation after a failed test usually means taking up a finished floor or ceiling that has already been decorated.

House-to-flats conversion drawing packages in London
Conversion	Typical scope	Route	Fee from
House to two self-contained flats	Vertical split, separate or shared entrance	Full planning plus building regulations	£1,600
House to three or more flats	Multiple units, fire strategy required	Full planning plus building regs plus structural	£2,400
Flat conversion with a side or rear extension	Additional floor area added to create compliant units	Full planning plus structural calculations	£2,800

Also in Greenford UB6

Planning Permission Planning Drawings Architectural Drawings Building Regulations Drawings Loft Conversion Drawings Flat Conversion Drawings across Ealing Flat Conversion Drawings across London

FAQ

Flat Conversion Drawings in Greenford UB6 — FAQs

Do I need planning permission to convert a house into flats?+

Yes, always. Subdividing a single dwelling into two or more self-contained flats is treated as development in its own right, so a full planning application is required regardless of whether the exterior of the building changes.

How much do flat conversion drawings cost in London?+

Packages start from £1,600 for converting a house into two flats and rise to around £2,800 where three or more units, structural work or an extension are involved. We agree a fixed fee once we know the scope.

What sound insulation is required between flats?+

Part E of the building regulations sets minimum airborne and impact sound standards for the floors and walls separating flats, and pre-completion sound testing is normally required before the units can be signed off.

Does each flat need a separate fire escape?+

Each flat needs its own means of escape and the building needs to be fire-compartmented between units, using fire-rated floors, walls and doors and either a protected shared stairway or separate final exits.

What is the minimum size for a flat in London?+

London applies minimum internal floor areas based on bedroom and occupancy numbers, adopted from the national space standards through the London Plan. We check every proposed flat against the relevant threshold before drawing the layout.

Do I need planning permission for a rear extension in Ealing?+

Many Ealing semis and terraces keep permitted development rights for a single-storey rear extension, so a full application isn't always needed. But the borough-wide Article 4 direction on HMO conversions, and conservation areas such as Bedford Park and Pitshanger, remove or restrict those rights in places. We check your address against the designations first and, where it qualifies, confirm permitted development with a Lawful Development Certificate.

What extra control applies in Bedford Park?+

Bedford Park is one of West London's most tightly controlled conservation areas, with detailed control over materials, rooflines, windows and front elevations. A standard permitted-development dormer or cladding change usually won't apply; instead we design to the area's Arts-and-Crafts character and prepare a full householder application with the elevations and materials the council expects — the reliable route to approval there.

How long does Ealing Council take to decide a householder application?+

Ealing determines most householder applications within the statutory eight-week period once they are validated. The commonest cause of delay is a validation query over missing or inconsistent drawings, so we prepare Ealing submissions to the council's validation checklist — correctly scaled existing and proposed plans, elevations and a location plan — to avoid that back-and-forth.

Can you help with a loft conversion on a 1930s Ealing semi?+

Yes. Ealing's Metro-land semis in Perivale, Greenford and Northolt suit hip-to-gable and dormer loft conversions, which frequently qualify as permitted development on semi-detached homes within the volume limits. We confirm eligibility against those limits and any Article 4 or conservation constraint, then produce the planning and building-regulations drawings.

How much do planning drawings cost in Ealing?+

We work to a fixed fee agreed before we start, typically around 30% below an architect's charge for the same council-accepted drawings, with free redraws until Ealing grants approval. The exact figure depends on the project — a single-storey rear extension differs from a double-storey or a loft — so we quote once we understand your scheme rather than on an open-ended hourly basis.

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