Updated 8 October 2026 · 263 new leads in the last 30 days
Construction Leads in Hounslow
Get construction leads in Hounslow as they come through on the planning register. See which homeowners across the borough are getting ready to build and reach them before quotes start going out.
- Taken directly from Hounslow Council planning decisions
- Contact homeowners while the project is still being scoped
- No shared lead lists or bidding platforms
Data sourced from Hounslow Council planning records and kept up to date.
263
New Leads (30 Days)
£151,793
Average Project Value
69
High Value Projects
Over £100k
Extensions
Most Common Project
Construction Trends in Hounslow
Chiswick's Victorian terraces and riverside streets generate a heavy volume of side return extensions, loft conversions, and the occasional basement dig where land values justify it. Isleworth and Brentford, with their mix of Georgian townhouses and newer waterside flats, bring through a blend of period refurbishments and internal reconfigurations. Further west in Feltham, Heston, and Hounslow town, semis and interwar terraces produce more straightforward rear extensions and garage conversions.
Project Type Breakdown
Below is a breakdown of recent planning applications across Hounslow by project type, showing where construction activity is currently concentrated.
In Hounslow, Extensions are the most common project type, appearing in 195 of the 263 leads tracked in the last 30 days, with Garden Rooms also showing consistent demand alongside New Builds. Projects can fall into more than one category, so these figures don't need to add up to the total.
Most Active Architects and Planning Consultants in Hounslow
The architects and planning consultants submitting the most construction-related applications in Hounslow, based on recent planning records.
- 1Bancil Property Consultants Ltd
- 2MoreSpace
- 3AsB Architecture Ltd
- 4AH ARCHITECTURE
- 5Design Endeavours
- 6Stones Architects
- 7SY Design Studio
- 8S9DESIGNS
- 9Malathy Group Limited
- 10Art Consultants (UK) Ltd
Project Value Insights
Grouping Hounslow applications by rough project value makes it easier to prioritise which ones to follow up on first.
- £25k – £50kGarage conversions, small rear extensions, and garden rooms
- £50k – £100kStandard loft conversions and single-storey rear extensions
- £100k – £250kDouble-storey extensions, wraparounds, and full refurbishments
- £250k+Basement digs, major structural work, and high-spec renovations
The largest budgets are concentrated around Chiswick, Strand-on-the-Green, and riverside Isleworth, where property values comfortably support bigger renovation projects.
Recent Planning Applications in Hounslow
Extensions
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| Single Storey Rear Extension | 3 Andover Close, Feltham, TW14 9XG | £50k–£100k | Erection of a single-storey rear extension to the house. | Approved |
| Wrap-Around Extension | 95 Canterbury Road, Feltham, TW13 5LL | £50k–£100k | Erection of single storey rear and part side extension to the house. | Approved |
| Double Storey Extension | 3 Herbert Gardens, Chiswick, London, W4 3RD | £100k–£250k | Rear roof extension with two front roof windows, raising main ridge, and single storey rear and infill extension. | Approved |
| Rear Extension | 10 Cedar Road, Hounslow, TW4 7QL | £50k–£100k | Prior approval for a ground floor rear extension 6m deep with 3m height. | Approved |
| Single Storey Rear Extension | 21 Heathfield Gardens, Chiswick, London, W4 4JU | £250k–£1m | Details of construction logistics plan submitted for a single storey and part first floor rear extension. | Approved |
Single Storey Rear Extension
3 Andover Close, Feltham, TW14 9XG
Erection of a single-storey rear extension to the house.
Wrap-Around Extension
95 Canterbury Road, Feltham, TW13 5LL
Erection of single storey rear and part side extension to the house.
Double Storey Extension
3 Herbert Gardens, Chiswick, London, W4 3RD
Rear roof extension with two front roof windows, raising main ridge, and single storey rear and infill extension.
Rear Extension
10 Cedar Road, Hounslow, TW4 7QL
Prior approval for a ground floor rear extension 6m deep with 3m height.
Single Storey Rear Extension
21 Heathfield Gardens, Chiswick, London, W4 4JU
Details of construction logistics plan submitted for a single storey and part first floor rear extension.
Loft Conversions
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| Loft Conversion | 12 Legrace Avenue, Hounslow, TW4 7RS | £100k–£250k | Two-storey side extension, single-storey rear extension and part first-floor rear extension, with hip-to-gable and rear roof extensions, Juliet balcony and four front roof windows. | Pending |
| Loft Conversion | 8 The Close, Isleworth, TW7 4BL | £100k–£250k | Rear roof extension with hip-to-gable conversion, three front roof windows, first-floor side extension and single-storey rear extension. | Pending |
| Loft Conversion | 3 Brainton Avenue, Feltham, TW14 0AZ | £100k–£250k | Rear roof extension including hip-to-gable conversion and Juliet balcony with three front roof windows, part single-storey/part two-storey side extension and single-storey rear extension to the house. | Pending |
Loft Conversion
12 Legrace Avenue, Hounslow, TW4 7RS
Two-storey side extension, single-storey rear extension and part first-floor rear extension, with hip-to-gable and rear roof extensions, Juliet balcony and four front roof windows.
Loft Conversion
8 The Close, Isleworth, TW7 4BL
Rear roof extension with hip-to-gable conversion, three front roof windows, first-floor side extension and single-storey rear extension.
Loft Conversion
3 Brainton Avenue, Feltham, TW14 0AZ
Rear roof extension including hip-to-gable conversion and Juliet balcony with three front roof windows, part single-storey/part two-storey side extension and single-storey rear extension to the house.
Other Projects
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| New Build | Land At Prince Regent Road, Hounslow, TW3 1NE | Variation of condition to change layouts of approved six storey building with flats. | Approved | |
| Garden Room | 15 Devonshire Gardens, Chiswick, London, W4 3TN | £25k–£50k | Erection of a single storey detached outbuilding in the rear garden. | Approved |
| Garden Room | 152 Heath Road,Hounslow,TW3 2NS | £25k–£50k | Retrospective application for a single-storey detached outbuilding at the rear of the house. | Approved |
| Garden Room | 74 Dukes Avenue, Chiswick, London, W4 2AF | £25k–£50k | Variation of condition for the size of an outbuilding in the garden. | Approved |
| Dropped Kerb | Flat Ground Floor, 34 Harvard Road, Chiswick, London, W4 4EA | £25k–£50k | Alterations to front boundary wall and landscaping for vehicular access. | Approved |
New Build
Land At Prince Regent Road, Hounslow, TW3 1NE
Variation of condition to change layouts of approved six storey building with flats.
Garden Room
15 Devonshire Gardens, Chiswick, London, W4 3TN
Erection of a single storey detached outbuilding in the rear garden.
Garden Room
152 Heath Road,Hounslow,TW3 2NS
Retrospective application for a single-storey detached outbuilding at the rear of the house.
Garden Room
74 Dukes Avenue, Chiswick, London, W4 2AF
Variation of condition for the size of an outbuilding in the garden.
Dropped Kerb
Flat Ground Floor, 34 Harvard Road, Chiswick, London, W4 4EA
Alterations to front boundary wall and landscaping for vehicular access.
Data sourced from Hounslow Council planning records and kept up to date.
Featured Projects
A look at construction opportunities currently working their way through the Hounslow planning system.
Erection of a single storey rear extension of depth 3.6 metres, width 5.07 metres and eaves at 2.52 metres, and conversion of garage into habitable space.
£50k–£100k3 Andover Close, Feltham, TW14 9XG
Erection of a single-storey rear extension to the house.
Erection of single storey rear and part side extension to the house.
£50k–£100k95 Canterbury Road, Feltham, TW13 5LL
Erection of single storey rear and part side extension to the house.
Erection of a rear roof extension with two front roof windows and single storey rear and infill extension to the house
£100k–£250k3 Herbert Gardens, Chiswick, London, W4 3RD
Rear roof extension with two front roof windows, raising main ridge, and single storey rear and infill extension.
Demolition of the existing single storey detached unenclosed gazebo outbuilding in the south western area of the house's rear garden and erection of a single storey detached outbuilding with a front lean-to in the south western area of the house's rear garden.
£25k–£50k15 Devonshire Gardens, Chiswick, London, W4 3TN
Erection of a single storey detached outbuilding in the rear garden.
Recently submitted Hounslow applications worth a follow-up call.
See All 263 Construction Leads in Hounslow
View full Hounslow project details and reach out before the job is widely quoted.
Get Access NowPlanning Application Status in Hounslow
48%
Approved
43%
Pending
9%
Refused
In Hounslow, 48% of planning applications are approved, 43% are still pending, and 9% are refused. Pending applications can give builders an opportunity to make contact while projects are still at an early stage.
Reaching out while applications are still active helps you get ahead of the pack.
Based on planning applications submitted over the last 30 days.
Planning Approval Times in Hounslow
Among applications tracked by BuildAlert in Hounslow, the median time from submission to decision is 8 weeks. Smaller projects like extensions tend to be approved more quickly, while larger developments can take longer.
Based on approved applications with recorded decision dates over the last 3 months.
Domestic vs Commercial Projects in Hounslow
In Hounslow, the vast majority (88%) of planning applications are domestic projects such as extensions and loft conversions. Commercial developments make up a smaller portion but can offer higher-value opportunities for larger contractors.
Demand for Building Work in Hounslow
Chiswick sits among the priciest postcodes in west London, largely down to river frontage and school catchments, so extending rather than moving is common there even when the building work itself is expensive. Further out towards Heathrow, strong local employment keeps demand for family homes steady, and Piccadilly and District line links make Hounslow attractive to buyers who'd otherwise be priced out of neighbouring boroughs.
How to Win Jobs in Hounslow
Contact Homeowners Early
A new planning application is the clearest early sign a homeowner is ready to build - reaching out at that point beats waiting to be invited to quote.
Focus on Approved Applications
Approved applications can be particularly valuable because the project has cleared a major planning hurdle and may be moving closer to construction.
Target Higher-Value Projects
Filter by estimated project value to focus your outreach on jobs that match the size and type of work your business takes on.
How BuildAlert Works
How to start converting Hounslow planning applications into real building work.
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Nearby Areas
Hounslow borders a few boroughs with a similar spread of housing, so builders here typically end up covering more than just one patch.
Frequently Asked Questions
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