Updated 22 October 2026 · 64 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.
64
New Leads (30 Days)
£139,844
Average Project Value
17
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 are the most common project type, appearing in 46 of the 64 leads tracked in the last 30 days, with Loft Conversions also showing consistent demand alongside Porches. 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 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
- 3Kevin J Turner Dip U.D C Build E. FCABE. FRICS
- 4Adept Architectural Designs
- 5AsB Architecture Ltd
- 6Art Consultants (UK) Ltd
- 7M C S Design Architectural Services
- 8STUDIO CAD PROJECTS LTD
- 9HCUK Group
- 10m83 Associates Ltd
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 |
|---|---|---|---|---|
| Wrap-Around Extension | Inglewood Green Street Sunbury-on-Thames | £50k–£100k | Roof extension with rear dormer to create an additional residential flat. | Approved |
| Wrap-Around Extension | 9 Orchard Way Ashford TW15 3AU | £100k–£250k | Erection of a part two storey part single storey side and rear extension. | Approved |
| Wrap-Around Extension | 8 Allen Close Sunbury-on-Thames TW16 5LT | £100k–£250k | Single-storey side/rear wraparound extension with part two-storey rear extension. | Approved |
| Rear Extension | 52 Avondale Road Ashford TW15 3HT | £50k–£100k | Proposed part first-floor rear extension to the dwelling at 52 Avondale Road. | Approved |
| Wrap-Around Extension | 52 Brightside Avenue Staines-upon-Thames TW18 1NG | £50k–£100k | Demolish detached garage and build a single-storey side and rear extension. | Approved |
Wrap-Around Extension
Inglewood Green Street Sunbury-on-Thames
Roof extension with rear dormer to create an additional residential flat.
Wrap-Around Extension
9 Orchard Way Ashford TW15 3AU
Erection of a part two storey part single storey side and rear extension.
Wrap-Around Extension
8 Allen Close Sunbury-on-Thames TW16 5LT
Single-storey side/rear wraparound extension with part two-storey rear extension.
Rear Extension
52 Avondale Road Ashford TW15 3HT
Proposed part first-floor rear extension to the dwelling at 52 Avondale Road.
Wrap-Around Extension
52 Brightside Avenue Staines-upon-Thames TW18 1NG
Demolish detached garage and build a single-storey side and rear extension.
Loft Conversions
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| Loft Conversion | 88 Groveley Road Sunbury-on-Thames TW16 7LB | £250k–£1m | Erection of part single storey and part double storey extensions with loft conversion. | Approved |
| 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. | Approved |
| Loft Conversion | 288 Feltham Hill Road Ashford TW15 1LN | £100k–£250k | Two-storey side extension, part two-storey/part single-storey rear extension, loft conversion with rear dormer and rooflights, front porch and new vehicle crossover with driveway alterations. | Approved |
| Loft Conversion | 3 Elizabeth Avenue Laleham Staines-upon-Thames TW18 1JW | £50k–£100k | Certificate of lawfulness for proposed hip-to-gable roof alteration, rear dormer and rooflights to front roof. | Approved |
| Loft Conversion | 35 Birch Grove Shepperton TW17 8SS | £50k–£100k | Raise roof height, convert internal loft space to habitable rooms and add a rear dormer with front rooflights. | Pending |
Loft Conversion
88 Groveley Road Sunbury-on-Thames TW16 7LB
Erection of part single storey and part double storey extensions with loft conversion.
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.
Loft Conversion
288 Feltham Hill Road Ashford TW15 1LN
Two-storey side extension, part two-storey/part single-storey rear extension, loft conversion with rear dormer and rooflights, front porch and new vehicle crossover with driveway alterations.
Loft Conversion
3 Elizabeth Avenue Laleham Staines-upon-Thames TW18 1JW
Certificate of lawfulness for proposed hip-to-gable roof alteration, rear dormer and rooflights to front roof.
Loft Conversion
35 Birch Grove Shepperton TW17 8SS
Raise roof height, convert internal loft space to habitable rooms and add a rear dormer with front rooflights.
Other Projects
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| Porch | Lismore Court Kingston Road Staines-upon-Thames TW18 1AU | £25k–£50k | Variation of condition for addition of new front porch and garden office gym building. | Approved |
| Garden Room | Sunbury-on-Thames | £100k–£250k | Construction of a new two bay service workshop and spares store for electric vehicles. | Approved |
| Heritage | 1 Laleham Abbey Abbey Drive Laleham Staines-upon-Thames TW18 1SZ | £25k–£50k | Listed building consent to install a spiral staircase between ground floor living room and basement. | Approved |
| Garden Room | 26 Chattern Road Ashford TW15 1AF | £25k–£50k | Retrospective householder application for erection of an outbuilding in the rear garden to be used as a gym and home office. | 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. | Approved |
Porch
Lismore Court Kingston Road Staines-upon-Thames TW18 1AU
Variation of condition for addition of new front porch and garden office gym building.
Garden Room
Sunbury-on-Thames
Construction of a new two bay service workshop and spares store for electric vehicles.
Heritage
1 Laleham Abbey Abbey Drive Laleham Staines-upon-Thames TW18 1SZ
Listed building consent to install a spiral staircase between ground floor living room and basement.
Garden Room
26 Chattern Road Ashford TW15 1AF
Retrospective householder application for erection of an outbuilding in the rear garden to be used as a gym and home office.
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.
Data sourced from Spelthorne Borough Council planning records and refreshed regularly.
Featured Projects
A snapshot of recent construction opportunities across the Spelthorne area.
Proposed erection of part single storey and part double storey side and rear extensions and roof extension to include a hip to gable end loft conversion with rear dormer and 3 no's skylights in front roof slope.
£250k–£1m88 Groveley Road Sunbury-on-Thames TW16 7LB
Erection of part single storey and part double storey extensions with loft conversion.
Roof extension including installation of a rear facing dormer to allow the creation of an additional residential flat.
£50k–£100kInglewood Green Street Sunbury-on-Thames
Roof extension with rear dormer to create an additional residential flat.
Variation of condition 8 (plans condition) of p/a 23/01338/FUL (redevelopment of former garage block to provide 1 no. 3-bed bungalow, enclosure of area of land to front of site and associated works) to allow addition of new front porch and garden office gym building.
£25k–£50kLismore Court Kingston Road Staines-upon-Thames TW18 1AU
Variation of condition for addition of new front porch and garden office gym building.
Erection of a new two bay service workshop and spares store to service electrical vehicles on existing car park area.
£100k–£250kSunbury-on-Thames
Construction of a new two bay service workshop and spares store for electric vehicles.
Examples of projects at an early stage before wider competition builds.
See All 64 Construction Leads in Spelthorne
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Get Access NowPlanning Application Status in Spelthorne
52%
Approved
47%
Pending
1%
Refused
Most planning applications in Spelthorne are approved, meaning a large proportion of these projects go ahead and become real building jobs. This creates strong opportunities for builders who contact homeowners early.
Getting in touch earlier puts you in a stronger position before others step in.
Based on planning applications submitted over the last 30 days.
Planning Approval Times in Spelthorne
Among applications tracked by BuildAlert in Spelthorne, 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 Spelthorne
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.
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
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
Three simple steps to start winning more construction work in Spelthorne.
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We monitor Spelthorne Borough Council and surrounding authorities daily for new residential projects.
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Contact Homeowners
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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.
Frequently Asked Questions
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