Updated 7 September 2026 · 106 new leads in the last 30 days
Construction Leads in Sevenoaks
Access construction leads in Sevenoaks by tracking newly submitted planning applications. See which homeowners across the district are preparing extensions, loft conversions, and refurbishments, and get in touch before they begin shortlisting builders.
- New planning applications added frequently from Sevenoaks District Council
- Connect with homeowners at the early planning stage
- No shared enquiries or competitive bidding
Data sourced from Sevenoaks District Council planning records and refreshed regularly.
106
New Leads (30 Days)
£140,024
Average Project Value
35
High Value Projects
Over £100k
Extensions
Most Common Project
Construction Trends in Sevenoaks
Sevenoaks district is one of the most heavily Green Belt-constrained areas in Kent, with the large majority of the district falling within London's Metropolitan Green Belt. That restricts new-build development outside existing settlement boundaries fairly tightly, which pushes a much higher proportion of activity toward extending, remodelling, and refurbishing existing homes rather than building new ones. The town of Sevenoaks itself has a conservation area covering its historic core and High Street, close to Knole House and its deer park, where alterations to many buildings need planning permission rather than falling under permitted development. Otford and Shoreham, villages to the north, keep a similar conservation character around their historic centres. Westerham, to the west near Churchill's former home at Chartwell, has its own protected village character. Swanley, in the district's north-east corner, is a notable exception — a larger, more modern town outside the strictest Green Belt designations, where new-build activity and larger-scale residential schemes are more common than elsewhere in the district.
Project Type Breakdown
Here's a breakdown of the most common types of construction projects in Sevenoaks over the past 30 days.
In Sevenoaks, Extensions account for the majority of planning applications (58 of 139 in the last 30 days), with Garden Rooms also showing consistent demand alongside Heritages.
Most Active Architects and Planning Consultants in Sevenoaks
The architects and planning consultants submitting the most construction-related applications in Sevenoaks, based on recent planning records.
- 1Robinson Escott Planning
- 2Offset Architects
- 3Macintosh Davies Ltd
- 4OPEN architecture
- 5Oast Architecture Ltd
- 6Rupert Elliott Consulting
- 7Building Drawings
- 8Kent Design Studio Limited
- 9Justin White Architecture Ltd
- 10Ripley Architecture
Project Value Insights
Understanding typical project values in Sevenoaks 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 residential projects
Higher-value projects are especially common in Sevenoaks town, Otford, and Westerham, where larger properties and more extensive upgrades are the norm.
Recent Planning Applications in Sevenoaks
Extensions
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| Double Storey Extension | Penshurst | £50k–£100k | Two single storey extensions with access to the rear garden and landscaping. | Approved |
| Extension | Tunbridge Wells | £250k–£1m | Removal of late 19th Century addition and replacement with designed extension using original materials. | Approved |
| Rear Extension | Shoreham Civil Parish | £100k–£250k | Demolition of porch and shed; erection of front extension, rear extension, and garage; installation of rooflights and solar panels. | Approved |
| Side Extension | Sevenoaks | £100k–£250k | Demolition of outbuilding and construction of side extension and porch. | Approved |
| Extension | Westerham | £50k–£100k | Demolition of garage and workshop to rebuild an annex with infill extension and fenestration alterations. | Approved |
Double Storey Extension
Penshurst
Two single storey extensions with access to the rear garden and landscaping.
Extension
Tunbridge Wells
Removal of late 19th Century addition and replacement with designed extension using original materials.
Rear Extension
Shoreham Civil Parish
Demolition of porch and shed; erection of front extension, rear extension, and garage; installation of rooflights and solar panels.
Side Extension
Sevenoaks
Demolition of outbuilding and construction of side extension and porch.
Extension
Westerham
Demolition of garage and workshop to rebuild an annex with infill extension and fenestration alterations.
Loft Conversions
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| Loft Conversion | Holmoak Oak Avenue Sevenoaks Kent TN13 1PR | £50k–£100k | Proposed front extension and loft conversion with alterations to the rear roof. | Approved |
| Loft Conversion | Chiddingstone | £100k–£250k | Single storey side and rear wrap around extension with loft conversion and roof lights. | Approved |
| Loft Conversion | 95 Neal Road West Kingsdown Kent TN15 6DQ | £100k–£250k | Demolition of garage and rear extension, and erection of a rear and side single storey wrap around extension with rooflights. | Approved |
| Loft Conversion | 47 Croydon Road Westerham Kent TN16 1TU | £50k–£100k | Loft conversion with hip to gable end, rear dormer, and roof lights, including internal alterations. | Refused |
| Loft Conversion | Sevenoaks | £100k–£250k | Side and rear extensions, first floor loft conversion, and new porch, including demolition of existing garage. | Approved |
Loft Conversion
Holmoak Oak Avenue Sevenoaks Kent TN13 1PR
Proposed front extension and loft conversion with alterations to the rear roof.
Loft Conversion
Chiddingstone
Single storey side and rear wrap around extension with loft conversion and roof lights.
Loft Conversion
95 Neal Road West Kingsdown Kent TN15 6DQ
Demolition of garage and rear extension, and erection of a rear and side single storey wrap around extension with rooflights.
Loft Conversion
47 Croydon Road Westerham Kent TN16 1TU
Loft conversion with hip to gable end, rear dormer, and roof lights, including internal alterations.
Loft Conversion
Sevenoaks
Side and rear extensions, first floor loft conversion, and new porch, including demolition of existing garage.
Other Projects
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| New Build | Destiny Kingsingfield Road West Kingsdown Kent TN15 6LJ | £250k–£1m | Demolition of existing bungalow and construction of 4 new dwellings. | Refused |
| New Build | Orpington | £250k–£1m | Demolition of existing dwelling and erection of a new single storey dwelling. | Approved |
| Garden Room | Sevenoaks | £25k–£50k | Proposed installation of a garden room. | Approved |
| Heritage | Sevenoaks | £25k–£50k | Installation of a new soil and vent stack and exhaust fan grilles for ensuite bathrooms. | Approved |
| Garden Room | Sevenoaks | £100k–£250k | Conversion of chicken shed to two residential dwellings and landscaping. | Approved |
New Build
Destiny Kingsingfield Road West Kingsdown Kent TN15 6LJ
Demolition of existing bungalow and construction of 4 new dwellings.
New Build
Orpington
Demolition of existing dwelling and erection of a new single storey dwelling.
Garden Room
Sevenoaks
Proposed installation of a garden room.
Heritage
Sevenoaks
Installation of a new soil and vent stack and exhaust fan grilles for ensuite bathrooms.
Garden Room
Sevenoaks
Conversion of chicken shed to two residential dwellings and landscaping.
Data sourced from Sevenoaks District Council planning records and refreshed regularly.
Featured Projects
A snapshot of recent construction opportunities across the Sevenoaks district.
Demolition of existing bungalow and construction of 3 no new detached dwellings.
£250k–£1mDestiny Kingsingfield Road West Kingsdown Kent TN15 6LJ
Demolition of existing bungalow and construction of 4 new dwellings.
Proposed front extension and loft conversion, including alterations to the rear roof form with the replacement of the two existing dormers. Juliette balcony to rear. Addition of PV Panels to South roof. Associated internal layout changes. Alteration to fenestration.
£50k–£100kHolmoak Oak Avenue Sevenoaks Kent TN13 1PR
Proposed front extension and loft conversion with alterations to the rear roof.
Two single storey extensions with access provided to the rear garden. Demolition of unused outhouse and associated hard and soft landscaping.
£50k–£100kPenshurst
Two single storey extensions with access to the rear garden and landscaping.
Demolition of existing dwelling with erection of a single storey, single family dwellinghouse (self build). Parking with electric charging point. Fencing, bin and bike store and associated landscaping with alterations to driveway.
£250k–£1mOrpington
Demolition of existing dwelling and erection of a new single storey dwelling.
Examples of projects at an early stage before wider competition builds.
See All 106 Construction Leads in Sevenoaks
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Get Access NowPlanning Application Outcomes in Sevenoaks
38%
Approved
53%
Pending
9%
Rejected
In Sevenoaks, 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.
Timing matters — earlier contact usually means less competition.
Based on planning application outcomes over the last 3 months.
Planning Approval Times in Sevenoaks
In Sevenoaks, 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 Sevenoaks
In Sevenoaks, the vast majority (82%) 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 Sevenoaks
Sevenoaks is one of the most affluent districts in Kent, driven by fast rail links into London and a strong stock of large detached and period houses. That affluence, combined with tight Green Belt restrictions on new development, means homeowners here are more likely to invest heavily in extending and upgrading their existing property than to move, producing consistently higher-value renovation and extension projects than many neighbouring districts. Otford, Westerham, and the villages around the town of Sevenoaks see particularly high-spec work reflecting larger plots and established household budgets. Swanley, by contrast, offers a more accessible market with a higher share of new-build and first-time renovation projects, giving builders working across the district exposure to both ends of the market.
How to Win Jobs in Sevenoaks
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
Three simple steps to start winning more construction work in Sevenoaks.
Track Planning Applications
We monitor Sevenoaks District Council and surrounding authorities daily for new residential projects.
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Contact Homeowners
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Nearby Areas
Builders based in Sevenoaks often take on work in nearby Kent areas such as Dartford, Gravesham, and Tonbridge and Malling, helping maintain a consistent flow of projects.
Frequently Asked Questions
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