Updated 7 September 2026 · 60 new leads in the last 30 days
Construction Leads in Spelthorne
Access construction leads in Spelthorne by tracking newly submitted planning applications. See which homeowners across Staines-upon-Thames, Ashford, Sunbury and Shepperton are preparing extensions, loft conversions, and new builds, and get in touch before they begin shortlisting builders.
- New planning applications added frequently from Spelthorne Borough Council
- Connect with homeowners at the early planning stage
- No shared enquiries or competitive bidding
Data sourced from Spelthorne Borough Council planning records and refreshed regularly.
60
New Leads (30 Days)
£136,875
Average Project Value
16
High Value Projects
Over £100k
Extensions
Most Common Project
Construction Trends in Spelthorne
Spelthorne is Surrey's northernmost borough, wrapped by bends of the Thames and sitting close to Heathrow Airport, which gives it a housing character that feels closer to outer London than the rest of the county. Staines-upon-Thames has seen substantial town centre redevelopment in recent years, and that continues into the surrounding residential streets with a steady flow of rear extensions and loft conversions on its mostly Victorian and inter-war housing. Sunbury and Shepperton, both directly on the river, have a mix of riverside properties and more typical suburban housing, generating everything from boathouses and garden rooms on waterside plots to standard family extensions further back from the river. Ashford, in the borough's centre, has a denser, more uniform housing stock and produces a high volume of smaller, straightforward extension and conversion projects. Shepperton Studios itself, one of the UK's longest-running film production sites, continues to see its own commercial redevelopment and expansion work, a separate but steady source of larger-scale construction activity alongside the borough's residential projects.
Project Type Breakdown
Here's a breakdown of the most common types of construction projects in Spelthorne over the past 30 days.
In Spelthorne, Extensions account for the majority of planning applications (48 of 78 in the last 30 days), with Loft Conversions also showing consistent demand alongside Porches.
Most Active Architects and Planning Consultants in Spelthorne
The architects and planning consultants submitting the most construction-related applications in Spelthorne, based on recent planning records.
- 1ajt design services ltd
- 2Fluent ADS Ltd
- 3AsB Architecture Ltd
- 4Adept Architectural Designs
- 5M C S Design Architectural Services
- 6Vdesigncad services
- 7STUDIO CAD PROJECTS LTD
- 8Resi Design Ltd
- 9m83 Associates Ltd
- 10Freedom Homes Architects
Project Value Insights
Understanding typical project values in Spelthorne helps you prioritise the most profitable leads and manage your workload effectively. These ranges are a general guide to the scale of work involved - individual project costs vary by design, specification, and site conditions.
- £25k – £50kSmall extensions, porches, and internal alterations
- £50k – £100kRear extensions and loft conversions
- £100k – £250kLarge extensions and full property refurbishments
- £250k+New builds and high-end riverside residential projects
Higher-value projects are often found along the riverside stretches of Sunbury and Shepperton, where premium plots and waterside frontage push up specifications.
Recent Planning Applications in Spelthorne
Extensions
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| Side Extension | Development Site At Former Two Rivers Bar And Restaurant 43 Church Street Staines-upon-Thames TW18 4EN | £1m+ | Redevelopment of site to provide a four-storey building with commercial space and 14 residential dwellings. | Refused |
| Rear Extension | 96 Groveley Road Sunbury-on-Thames TW16 7LB | £100k–£250k | Erection of a ground floor rear extension and rear roof dormer for use as a small HMO. | Approved |
| Wrap-Around Extension | 175 The Avenue Sunbury-on-Thames TW16 5EH | £100k–£250k | Erection of a part single part two storey rear extension and two storey side extension with roof extension. | Approved |
| Single Storey Rear Extension | 52 Northfield Road Laleham Staines-upon-Thames TW18 2SR | £50k–£100k | Erection of a single storey rear extension. | Approved |
| Extension | Ryemead House Lower Hampton Road Sunbury-on-Thames TW16 5PR | £25k–£50k | Addition of two new dormers to the roof of the existing garage. | Approved |
Side Extension
Development Site At Former Two Rivers Bar And Restaurant 43 Church Street Staines-upon-Thames TW18 4EN
Redevelopment of site to provide a four-storey building with commercial space and 14 residential dwellings.
Rear Extension
96 Groveley Road Sunbury-on-Thames TW16 7LB
Erection of a ground floor rear extension and rear roof dormer for use as a small HMO.
Wrap-Around Extension
175 The Avenue Sunbury-on-Thames TW16 5EH
Erection of a part single part two storey rear extension and two storey side extension with roof extension.
Single Storey Rear Extension
52 Northfield Road Laleham Staines-upon-Thames TW18 2SR
Erection of a single storey rear extension.
Extension
Ryemead House Lower Hampton Road Sunbury-on-Thames TW16 5PR
Addition of two new dormers to the roof of the existing garage.
Loft Conversions
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| Loft Conversion | 20 Saxon Road Ashford TW15 1QL | £50k–£100k | Certificate of lawfulness for proposed loft conversion with rear facing dormer. | Approved |
| Loft Conversion | 153 Kingston Road Staines-upon-Thames TW18 1PB | £50k–£100k | Certificate of Lawfulness for proposed loft conversion with hip to gable and rear dormer. | Approved |
| Loft Conversion | 58 Templedene Avenue Staines-upon-Thames TW18 1LW | £50k–£100k | Certificate of Lawfulness for existing loft conversion including hip to gable extension and rear dormer. | Approved |
| Loft Conversion | 49 Wolsey Road Ashford TW15 2RA | £50k–£100k | Certificate of lawfulness for proposed loft conversion with side facing dormer windows. | Approved |
| Loft Conversion | 3 Old Forge Crescent Shepperton TW17 9BT | £50k–£100k | Certificate of Lawfulness for proposed side dormer and 4 roof lights. | Approved |
Loft Conversion
20 Saxon Road Ashford TW15 1QL
Certificate of lawfulness for proposed loft conversion with rear facing dormer.
Loft Conversion
153 Kingston Road Staines-upon-Thames TW18 1PB
Certificate of Lawfulness for proposed loft conversion with hip to gable and rear dormer.
Loft Conversion
58 Templedene Avenue Staines-upon-Thames TW18 1LW
Certificate of Lawfulness for existing loft conversion including hip to gable extension and rear dormer.
Loft Conversion
49 Wolsey Road Ashford TW15 2RA
Certificate of lawfulness for proposed loft conversion with side facing dormer windows.
Loft Conversion
3 Old Forge Crescent Shepperton TW17 9BT
Certificate of Lawfulness for proposed side dormer and 4 roof lights.
Other Projects
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| Garage Conversion | 73 Nursery Gardens Staines-upon-Thames TW18 1EL | £25k–£50k | Conversion of garage to a habitable room with new window installation. | Approved |
| New Build | Clonskeagh Russell Road Shepperton TW17 9HS | £50k–£100k | Consent for erection of a timber-framed orangery at a Grade II listed dwelling. | Approved |
| Heritage | Clonskeagh Russell Road Shepperton TW17 9HS | £50k–£100k | Erection of a timber-framed orangery at the rear of a Grade II listed dwellinghouse. | Approved |
| Heritage | The Croft 281 Hithermoor Road Stanwell Moor Staines-upon-Thames TW19 6AZ | £25k–£50k | Consent for minor internal and external alterations to a listed dwelling. | Approved |
| Garden Room | 3 Cordelia Road Stanwell Staines-upon-Thames TW19 7EJ | Under £25k | Erection of a single-storey rear outbuilding (ancillary garden building) at the property. | Pending |
Garage Conversion
73 Nursery Gardens Staines-upon-Thames TW18 1EL
Conversion of garage to a habitable room with new window installation.
New Build
Clonskeagh Russell Road Shepperton TW17 9HS
Consent for erection of a timber-framed orangery at a Grade II listed dwelling.
Heritage
Clonskeagh Russell Road Shepperton TW17 9HS
Erection of a timber-framed orangery at the rear of a Grade II listed dwellinghouse.
Heritage
The Croft 281 Hithermoor Road Stanwell Moor Staines-upon-Thames TW19 6AZ
Consent for minor internal and external alterations to a listed dwelling.
Garden Room
3 Cordelia Road Stanwell Staines-upon-Thames TW19 7EJ
Erection of a single-storey rear outbuilding (ancillary garden building) at the property.
Data sourced from Spelthorne Borough Council planning records and refreshed regularly.
Featured Projects
A snapshot of recent construction opportunities across the Spelthorne area.
Redevelopment of site to provide 1no. four storey building with side wing extension comprising commercial floorspace at ground floor level (230m2) (Class E use) and 14no. residential dwellings contained within upper floors together with associated site access, car parking, soft landscaping. demolition of existing boundary wall and erection of new boundary wall, and other associated infrastructure. (As shown on plan no's FL24-2155- 057, 090, 120A, 100A, 101A, 115A and PR12477_11 rec'd 20.05.2026 and loc plan, FL24-2155-051, 055B and 056A rec's 18.12.2025.
£1m+Development Site At Former Two Rivers Bar And Restaurant 43 Church Street Staines-upon-Thames TW18 4EN
Redevelopment of site to provide a four-storey building with commercial space and 14 residential dwellings.
Certificate of Lawfulness for an existing development and use for a ground floor rear extension, roof alterations including a rear roof dormer and a hip to gable conversion with insertion of rooflights, and use as a small HMO (use class C4)
£100k–£250k96 Groveley Road Sunbury-on-Thames TW16 7LB
Erection of a ground floor rear extension and rear roof dormer for use as a small HMO.
Certificate of lawfulness for proposed loft conversion with rear facing dormer and three rooflights on the front roof slope. As shown on drawing no's: 0001 rev P01; 3601 rev P01; 3001 rev P01 received 23.06.2026
£50k–£100k20 Saxon Road Ashford TW15 1QL
Certificate of lawfulness for proposed loft conversion with rear facing dormer.
Erection of a part single part two storey rear extension, with a two storey side extension, roof extension with 2 no. rear pitched roof elements with 2 no. rear facing Juliet balconies and rear roof dormer and new front porch. Removal of the rear garden swimming pool outhouse.
£100k–£250k175 The Avenue Sunbury-on-Thames TW16 5EH
Erection of a part single part two storey rear extension and two storey side extension with roof extension.
Examples of projects at an early stage before wider competition builds.
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Get Access NowPlanning Application Outcomes in Spelthorne
48%
Approved
45%
Pending
7%
Rejected
In Spelthorne, 48% of planning applications are approved, 45% are still pending, and 7% are rejected. Contacting homeowners early gives you the best chance of winning work.
Getting in touch earlier puts you in a stronger position before others step in.
Based on planning application outcomes over the last 3 months.
Planning Approval Times in Spelthorne
In Spelthorne, 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 Spelthorne
In Spelthorne, the vast majority (85%) 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 Spelthorne
Spelthorne's proximity to Heathrow and its fast road and rail links into London keep the borough attractive to commuters, which supports steady demand for family housing and, in turn, consistent extension and renovation activity. Staines-upon-Thames' ongoing regeneration continues to bring new-build and mixed-use development into the pipeline alongside the borough's usual flow of householder extension work. Sunbury and Shepperton's riverside properties tend to see higher-spec renovation and extension projects, reflecting larger plots and premium river frontage, while Ashford and the more standard suburban streets generate a higher volume of typical family-home projects - kitchen extensions, loft conversions, and garden buildings.
How to Win Jobs in Spelthorne
Contact Homeowners Early
Planning applications highlight upcoming work, giving you a chance to get in touch before builders are shortlisted.
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
Builders based in Spelthorne often take on work in nearby areas such as Runnymede and Elmbridge, helping maintain a consistent flow of projects.
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