Updated 17 September 2026 · 58 new leads in the last 30 days
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.
Data sourced from Spelthorne Borough Council planning records and refreshed regularly.
58
New Leads (30 Days)
£129,526
Average Project Value
18
High Value Projects
Over £100k
Extensions
Most Common Project
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.
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 (46 of 77 in the last 30 days), with Loft Conversions also showing consistent demand alongside Porches.
The architects and planning consultants submitting the most construction-related applications in Spelthorne, based on recent planning records.
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.
Higher-value projects are often found along the riverside stretches of Sunbury and Shepperton, where premium plots and waterside frontage push up specifications.
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| 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 | 59A Wolsey Road Ashford TW15 2RA | £50k–£100k | Single-storey rear extension with roof lantern and internal alterations. | Approved |
| Wrap-Around Extension | 127 Ashgrove Road Ashford TW15 1NY | £50k–£100k | Erection of a single storey front, side and rear extension. | Approved |
| Single Storey Rear Extension | 1 Griffin Way Sunbury-on-Thames TW16 6JD | £50k–£100k | Erection of a single storey infill rear extension. | Approved |
| Single Storey Side Extension | 33 Laleham Road Shepperton TW17 8EQ | £100k–£250k | Roof extension with hipped to gable alterations, side dormer, and single storey side extension. | Approved |
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
59A Wolsey Road Ashford TW15 2RA
Single-storey rear extension with roof lantern and internal alterations.
Wrap-Around Extension
127 Ashgrove Road Ashford TW15 1NY
Erection of a single storey front, side and rear extension.
Single Storey Rear Extension
1 Griffin Way Sunbury-on-Thames TW16 6JD
Erection of a single storey infill rear extension.
Single Storey Side Extension
33 Laleham Road Shepperton TW17 8EQ
Roof extension with hipped to gable alterations, side dormer, and single storey side extension.
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| 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 | 43 Scotts Avenue Sunbury-on-Thames TW16 7HY | £100k–£250k | Erection of a single storey rear extension and side extension, with loft conversion and rooflights. | Approved |
| Loft Conversion | 2 Brook Close Stanwell Staines-upon-Thames TW19 7AW | £50k–£100k | Certificate of lawfulness for proposed hip-to-gable roof and rear dormer extension. | Approved |
| Loft Conversion | Lauraleen Halliford Road Sunbury-on-Thames TW16 6DG | £100k–£250k | Householder proposal: single-storey rear extension, front porch, loft conversion with hip-to-gable and rear dormer, roof extension over garage, part garage conversion, rooflights and rear outbuilding. | Refused |
| Loft Conversion | Borough of Spelthorne | £100k–£250k | Certificate of lawfulness for loft works (hip-to-gable, rear dormer, three front rooflights) and proposed single-storey rear extension. | Pending |
Loft Conversion
3 Old Forge Crescent Shepperton TW17 9BT
Certificate of Lawfulness for proposed side dormer and 4 roof lights.
Loft Conversion
43 Scotts Avenue Sunbury-on-Thames TW16 7HY
Erection of a single storey rear extension and side extension, with loft conversion and rooflights.
Loft Conversion
2 Brook Close Stanwell Staines-upon-Thames TW19 7AW
Certificate of lawfulness for proposed hip-to-gable roof and rear dormer extension.
Loft Conversion
Lauraleen Halliford Road Sunbury-on-Thames TW16 6DG
Householder proposal: single-storey rear extension, front porch, loft conversion with hip-to-gable and rear dormer, roof extension over garage, part garage conversion, rooflights and rear outbuilding.
Loft Conversion
Borough of Spelthorne
Certificate of lawfulness for loft works (hip-to-gable, rear dormer, three front rooflights) and proposed single-storey rear extension.
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| 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 |
| New Build | Curchods 58 High Street Shepperton TW17 9AU | £250k–£1m | Erect a building to provide 2 studio flats and 2 one-bedroom flats on land to the rear of the site. | Pending |
| Garage Conversion | 44 Roper Crescent Sunbury-on-Thames TW16 5BA | Under £25k | Garage conversion and installation of access gate within garden wall. | Pending |
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.
New Build
Curchods 58 High Street Shepperton TW17 9AU
Erect a building to provide 2 studio flats and 2 one-bedroom flats on land to the rear of the site.
Garage Conversion
44 Roper Crescent Sunbury-on-Thames TW16 5BA
Garage conversion and installation of access gate within garden wall.
Data sourced from Spelthorne Borough Council planning records and refreshed regularly.
A snapshot of recent construction opportunities across the Spelthorne area.
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.
59A Wolsey Road Ashford TW15 2RA
Single-storey rear extension with roof lantern and internal alterations.
127 Ashgrove Road Ashford TW15 1NY
Erection of a single storey front, side and rear extension.
1 Griffin Way Sunbury-on-Thames TW16 6JD
Erection of a single storey infill rear extension.
Examples of projects at an early stage before wider competition builds.
Unlock full details and connect with homeowners while projects are still taking shape.
Get Access Now38%
Approved
53%
Pending
9%
Rejected
In Spelthorne, 38% of planning applications are approved, 53% are still pending, and 9% 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.
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.
In Spelthorne, the vast majority (86%) 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.
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.
Planning applications highlight upcoming work, giving you a chance to get in touch before builders are shortlisted.
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Filter for projects over £50k. Fewer builders compete for larger jobs, giving you better margins and longer contracts.
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