Updated 21 September 2026 · 279 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.
279
New Leads (30 Days)
£127,240
Average Project Value
70
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 account for the majority of planning applications (224 of 312 in the last 30 days), with Garden Rooms also showing consistent demand alongside Porches.
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.
- 1AsB Architecture Ltd
- 2Bancil Property Consultants Ltd
- 3Art Consultants (UK) Ltd
- 4Paul Vick Architects ltd
- 5Arkitectly
- 6Shah Designs Limited
- 7MoreSpace
- 8ART @ Rooshika Ltd
- 9KG Plan & Design Ltd
- 10Matthew Calvert Architect
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 |
|---|---|---|---|---|
| Double Storey Extension | Greater London | £100k–£250k | Rear roof extension with two front roof windows, raising main ridge, and single storey rear and infill extension. | Approved |
| Extension | Greater London | £250k–£1m | Removal of parking permit condition related to the change of use from offices to five dwellings and roof extension. | Refused |
| Rear Extension | 92 Waye Avenue, Hounslow, TW5 9SF | £50k–£100k | Prior approval for a 5.5m deep rear extension with a maximum height of 3.5m. | Approved |
| Double Storey Extension | 27 College Road, Isleworth, TW7 5DJ | £100k–£250k | Erection of a two-storey side extension and an outbuilding for home office and gym. | Approved |
| Rear Extension | 18 Wood Lane, Isleworth, TW7 5ED | £50k–£100k | Certificate for proposed rear roof extension with hip to gable conversion and outbuilding. | Approved |
Double Storey Extension
Greater London
Rear roof extension with two front roof windows, raising main ridge, and single storey rear and infill extension.
Extension
Greater London
Removal of parking permit condition related to the change of use from offices to five dwellings and roof extension.
Rear Extension
92 Waye Avenue, Hounslow, TW5 9SF
Prior approval for a 5.5m deep rear extension with a maximum height of 3.5m.
Double Storey Extension
27 College Road, Isleworth, TW7 5DJ
Erection of a two-storey side extension and an outbuilding for home office and gym.
Rear Extension
18 Wood Lane, Isleworth, TW7 5ED
Certificate for proposed rear roof extension with hip to gable conversion and outbuilding.
Loft Conversions
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| Loft Conversion | Greater London | £100k–£250k | Single-storey rear infill extension, garage conversion to habitable room, increase roof height for additional bedrooms, front porch extension and repositioning of bay window. | Pending |
| Loft Conversion | Greater London | £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
Greater London
Single-storey rear infill extension, garage conversion to habitable room, increase roof height for additional bedrooms, front porch extension and repositioning of bay window.
Loft Conversion
Greater London
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.
Other Projects
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| Garden Room | 126 Byron Avenue, Hounslow, TW4 6LY | £25k–£50k | Certificate for proposed erection of a detached outbuilding in the rear garden. | Approved |
| Garden Room | 191 Spring Grove Road, Isleworth, TW7 4AL | £25k–£50k | Erection of a single storey detached outbuilding for games room, gym, sauna, and toilet. | Refused |
| Porch | 32 Eastbourne Road, Feltham, TW13 5EX | £25k–£50k | Certificate of lawfulness for the proposed erection of a porch. | Approved |
| Garage Conversion | 8 Corban Road, Hounslow, TW3 3AS | £50k–£100k | Conversion of garage into a habitable room with a new window. | Approved |
| New Build | Garage Block Adjacent 50 to 64 Oxford Way, Feltham, TW13 6RZ | £250k–£1m | Details submitted for conditions related to a residential building project. | Approved |
Garden Room
126 Byron Avenue, Hounslow, TW4 6LY
Certificate for proposed erection of a detached outbuilding in the rear garden.
Garden Room
191 Spring Grove Road, Isleworth, TW7 4AL
Erection of a single storey detached outbuilding for games room, gym, sauna, and toilet.
Porch
32 Eastbourne Road, Feltham, TW13 5EX
Certificate of lawfulness for the proposed erection of a porch.
Garage Conversion
8 Corban Road, Hounslow, TW3 3AS
Conversion of garage into a habitable room with a new window.
New Build
Garage Block Adjacent 50 to 64 Oxford Way, Feltham, TW13 6RZ
Details submitted for conditions related to a residential building project.
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 rear roof extension with two front roof windows and single storey rear and infill extension to the house
£100k–£250kGreater London
Rear roof extension with two front roof windows, raising main ridge, and single storey rear and infill extension.
Removal of Condition 8 (Resident Parking Permits) from Planning Permission P/2021/4479 approved 12/08/2022 for the 'Change of use from offices to five dwellings, erection of a roof extension with front roof windows, with associated amenity space, landscaping and cycle and refuse storage'.
£250k–£1mGreater London
Removal of parking permit condition related to the change of use from offices to five dwellings and roof extension.
Ground floor rear extension 5.50 metres deep, maximum height of 3.50 metres, 2.60 metres high to the eaves
£50k–£100k92 Waye Avenue, Hounslow, TW5 9SF
Prior approval for a 5.5m deep rear extension with a maximum height of 3.5m.
Certificate of lawfulness for the proposed erection of a detached outbuilding in the rear garden.
£25k–£50k126 Byron Avenue, Hounslow, TW4 6LY
Certificate for proposed erection of a detached outbuilding in the rear garden.
Recently submitted Hounslow applications worth a follow-up call.
See All 279 Construction Leads in Hounslow
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Get Access NowPlanning Application Outcomes in Hounslow
47%
Approved
43%
Pending
10%
Rejected
In Hounslow, 47% of planning applications are approved, 43% are still pending, and 10% are rejected. Contacting homeowners early gives you the best chance of winning work.
Reaching out while applications are still active helps you get ahead of the pack.
Based on planning application outcomes over the last 3 months.
Planning Approval Times in Hounslow
In Hounslow, most planning applications are decided within 8 weeks. Smaller projects like extensions tend to be approved more quickly, while larger developments can take longer.
Domestic vs Commercial Projects in Hounslow
In Hounslow, the vast majority (91%) 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
Prioritise leads that have already received planning approval. These homeowners are ready to hire and start work.
Target Higher-Value Projects
Filter for projects over £50k. Fewer builders compete for larger jobs, giving you better margins and longer contracts.
How BuildAlert Works
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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.
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