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Free 2026 London Planning Report — Planning Permission in Feltham TW13

Single-storey rear extension on a 1930s semi in Feltham TW13, planning drawings for London Borough of Hounslow approval
Feltham · TW13 · Hounslow

Planning Permission in Feltham TW13

Fixed-fee, MCIAT-chartered planning permission for Feltham (TW13) homeowners — London Borough of Hounslow validation and local constraints handled from the start.

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Feltham is an outer-west Hounslow suburb built largely between the wars and in the post-war decades, so the bulk of our work here is family-driven: single-storey rear extensions, side-return infills and loft conversions on 1930s semis and estate housing. Wide plots on roads such as Southern Avenue and Ashmead Road usually leave comfortable room to extend under permitted development while keeping the front elevation intact.

Where a plot sits near the St Dunstan's or Hanworth Park conservation areas, or on the lower ground close to the River Crane, we design to Hounslow Council's expectations from the outset — matching brick and roof lines, respecting the depth and height limits, and building in flood-resilient drainage detail so the application clears validation without an avoidable refusal.

Single-storey rear extension on a 1930s semi in Feltham TW13, planning drawings for London Borough of Hounslow approval
Isometric illustration of a Feltham TW13 home planning permission design
Proposed floor plan
Feltham TW13

Planning in Feltham (TW13): what to know before you apply

There is no published householder Article 4 direction in Feltham, so most rear and loft projects proceed under permitted development. Watch the St Dunstan's, Hanworth Park and Feltham Town Centre conservation areas, and the flood constraint on plots near the River Crane, where PD rights and extension depths are more tightly read.

Typical Feltham housing stock

Feltham is dominated by 1930s bay-fronted semis and post-war council-built estates, with generous rear gardens on roads like Southern Avenue and Glebelands Road. Plots are wide enough for single-storey rear extensions, side infills and hip-to-gable loft conversions without needing to touch the front elevation.

Streets we regularly draw for in Feltham

Southern Avenue · Glebelands Road · Ashmead Road · Browells Lane

What TW13 is actually built of

Measured from 396 classified residential buildings in TW13, not from a description of the area.

Feltham TW13 housing mix

Residential building form across the TW13 postcode district, from 396 classified buildings.

Attached on more than one side41%
Attached on one side54%
Detached5%
Median building footprint54 m²
Addresses per buildingAbove about 2 means flats and maisonettes dominate1.56
Buildings classified396

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 2026-09-22.

Planning Permission for Feltham (TW13) homes: the package and the process

A householder application is refused validation far more often than it is refused permission, and almost always for the same reasons: a location plan at the wrong scale, no red line around the application site, a missing ownership certificate, or elevations that do not show every face of the building affected. We prepare the full submission set — location plan, block plan, existing and proposed floor plans, elevations and sections — so the case officer receives a complete case on day one.

Once the application is live we stay on it. Officers routinely come back with questions about materials, boundary treatment or a dimension they cannot read off the drawings, and a fast, drawn answer is usually the difference between a decision inside the statutory period and a request to withdraw and resubmit.

Which route applies is decided by the building before it is decided by policy. A house that has never been extended usually has allowances left to use; a flat, a listed building or a home in a conservation area often has none, and the same drawing set then has to make a design case rather than a compliance one.

Do I need planning permission for an extension in London?

Many single-storey rear extensions, loft conversions and outbuildings fall under permitted development rights and do not need a full planning application — but London's dense housing stock, conservation areas and Article 4 directions frequently withdraw those rights. Before you pay for a full application, we check your property against the current permitted development thresholds and your borough's local constraints.

Where permitted development applies, we recommend a Lawful Development Certificate instead of full planning — it is faster, cheaper and gives you a legal document confirming the work was lawful. Where a full application is genuinely required, we prepare it properly the first time.

Permitted development vs a full planning application

Permitted development lets you build within defined volumetric limits without committee review. A full householder application is assessed against the borough's local plan for scale, daylight, neighbour impact and design. We advise which route your project qualifies for and why.

Article 4 directions and conservation areas

If your home sits in a conservation area or under an Article 4 direction, permitted development rights are often removed — meaning even modest changes need consent. Each borough page lists the local directions and conservation areas we routinely design around.

How do you apply for planning permission through the London Planning Portal?

We manage the full lifecycle of your submission — survey, drawings, supporting documents and officer liaison — so you never have to decode a validation checklist yourself.

Phase 1 — existing and proposed site surveys

A laser-measured survey captures your property exactly, so existing and proposed drawings match reality millimetre for millimetre.

Phase 2 — technical drawing package

Site location plan, block plan, floor plans, elevations and sections drawn to your borough's scale and formatting requirements, with a design and access statement where needed.

Phase 3 — liaison with the planning officer

We answer the council's queries, negotiate amendments, and redraw free until the decision lands.

How long does planning permission take, and what does it cost?

Drawings are typically ready within 7 days of survey. Your council then has a statutory 8 weeks to decide a householder application. Our drawing fees are fixed and quoted upfront — the table below shows typical packages.

Typical fixed-fee planning drawing packages
PackageProduction windowCompliance layerTypical fee
Permitted Development pack7–10 working daysLawful Development Certificate submission£645–£995
Full Planning pack10–14 working daysCouncil liaison & design statement£745–£1,495
Planning + Building Regs pack14–21 working daysStructural calculations included in this all-inclusive pack£1,845–£3,145
Example planning permission sheet showing the existing and proposed arrangement at scale, as we draw it for Feltham (TW13) properties
Example sheet showing how we draw planning permission to London Borough of Hounslow's validation standards for Feltham (TW13) properties.
FAQ

Planning Permission in Feltham TW13 — FAQs

How long does it take to get planning permission from a London council?+
Householder applications carry a statutory 8-week determination period. We deliver your drawings within about 7 days of survey, so the council clock can start quickly. Lawful Development Certificates usually resolve faster.
What happens if the council refuses?+
We check every drawing against your borough's local plan before submission to reduce the risk. If the council does refuse, we advise on revisions or an appeal, and a revised application is often the quicker route. Since 6 December 2023 a resubmission pays the full council fee again.
Do you cover my borough?+
Yes — we prepare drawings for all 33 London boroughs. Each borough has its own page covering local conservation, Article 4 and validation quirks.
Is the fee really fixed?+
Yes. We quote a fixed fee before we start and it does not move, even when the council asks for revisions — those redraws are free.
Do I need planning permission for an extension in Hounslow?+
It depends on the area. The interwar semis of Osterley, Hounslow and Feltham often retain permitted development rights for rear extensions and lofts, while the Chiswick terraces and Bedford Park sit within conservation areas where those rights are removed. We check your address against the designations first and can 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. Roof enlargements such as dormers, side extensions, rear extensions over one storey and cladding are not permitted development in a conservation area, so we design to the Arts-and-Crafts character here and prepare a full householder application with the elevations and materials the council expects.
Does Heathrow or the river affect my Hounslow project?+
They can. Toward the west of the borough, aircraft-noise considerations near Heathrow may influence habitable-room and glazing design, and along the Thames at Strand-on-the-Green and Isleworth the flood zone must be addressed. We evidence these considerations within the application where they apply so the council can validate and approve without repeated revisions.
How long does Hounslow Council take to decide?+
In Hounslow, a valid application sets eight weeks running from the day after, and only written agreement lengthens them. Bedford Park, conservation and riverside cases can involve additional consultation, so we follow the checklist.
How much do planning drawings cost in Hounslow?+
We agree a fixed fee before starting, taken from our published price list, with free redraws until Hounslow approves. A suburban Osterley extension and a Bedford Park application differ in the evidence required, so we quote once we understand your address and project rather than by the hour.
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