Updated 17 September 2026 · 123 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.
123
New Leads (30 Days)
£134,939
Average Project Value
39
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 (63 of 163 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.
- 1Offset Architects
- 2Robinson Escott Planning
- 3OPEN architecture
- 4Oast Architecture Ltd
- 5Macintosh Davies Ltd
- 6Building Drawings
- 7JHG PLANNING CONSULTANCY LTD
- 8polar design
- 9AK-Studios
- 10Bluelime
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 |
|---|---|---|---|---|
| Extension | Tunbridge Wells | £250k–£1m | Removal of late 19th Century addition and replacement with designed extension using original materials. | Approved |
| Side Extension | Sevenoaks | £100k–£250k | Demolition of conservatory and side extension, conversion of garage, and construction of a new side extension. | Approved |
| Wrap-Around Extension | Sevenoaks | £50k–£100k | Single storey flat roof side extension to the rear with landscaping. | Approved |
| Single Storey Rear Extension | Sevenoaks | £50k–£100k | Demolition of existing porch and construction of new porch, along with a single storey rear extension and alterations to roof line and fenestration. | Approved |
| Side Extension | 68 Church Road Sundridge Kent TN14 6EA | £50k–£100k | First floor side extension. | Refused |
Extension
Tunbridge Wells
Removal of late 19th Century addition and replacement with designed extension using original materials.
Side Extension
Sevenoaks
Demolition of conservatory and side extension, conversion of garage, and construction of a new side extension.
Wrap-Around Extension
Sevenoaks
Single storey flat roof side extension to the rear with landscaping.
Single Storey Rear Extension
Sevenoaks
Demolition of existing porch and construction of new porch, along with a single storey rear extension and alterations to roof line and fenestration.
Side Extension
68 Church Road Sundridge Kent TN14 6EA
First floor side extension.
Loft Conversions
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| 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 | 49 London Road Dunton Green Kent TN13 2UD | £100k–£250k | Single storey rear extension and loft space conversion with rear dormer and roof lights. | Approved |
| Loft Conversion | Davinder London Road West Kingsdown Kent TN15 6ET | £50k–£100k | Hip to gable alterations and loft conversion with dormer windows. | Refused |
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.
Loft Conversion
49 London Road Dunton Green Kent TN13 2UD
Single storey rear extension and loft space conversion with rear dormer and roof lights.
Loft Conversion
Davinder London Road West Kingsdown Kent TN15 6ET
Hip to gable alterations and loft conversion with dormer windows.
Other Projects
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| 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 |
| Garden Room | Sevenoaks | £25k–£50k | Erection of a garden outbuilding for use as an appointment-only nail salon. | Approved |
| Heritage | Eden Cottage Mill Hill Edenbridge Kent TN8 5BU | £25k–£50k | Installation of solar array with battery storage and EV charging point. | Approved |
| Garden Room | Bellasis Rye Lane Dunton Green Kent TN14 5HA | £25k–£50k | Demolition of existing garage and outbuildings, erection of replacement detached garage. | Approved |
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.
Garden Room
Sevenoaks
Erection of a garden outbuilding for use as an appointment-only nail salon.
Heritage
Eden Cottage Mill Hill Edenbridge Kent TN8 5BU
Installation of solar array with battery storage and EV charging point.
Garden Room
Bellasis Rye Lane Dunton Green Kent TN14 5HA
Demolition of existing garage and outbuildings, erection of replacement detached garage.
Data sourced from Sevenoaks District Council planning records and refreshed regularly.
Featured Projects
A snapshot of recent construction opportunities across the Sevenoaks district.
Installation of a new cast iron soil and vent stack on the external wall to serve a proposed new ensuite, along with the addition of discreet exhaust fan grilles to serve the new ensuite and existing bathrooms.
£25k–£50kSevenoaks
Installation of a new soil and vent stack and exhaust fan grilles for ensuite bathrooms.
Removal of late 19th Century external addition and replacement with designed extension using original materials including ragstone bricks and infill extension in oak with glazing cover to expose the original structure. Forming new doorway between existing kitchen and south lean-to. Alterations to fenestration.
£250k–£1mTunbridge Wells
Removal of late 19th Century addition and replacement with designed extension using original materials.
Part demolition and conversion of existing chicken shed to create two residential dwellings, creation of residential curtilage including associated hard and soft landscaping, change of use of agricultural land to enlarge approved residential curtilages. Alteration to neighbouring driveway.
£100k–£250kSevenoaks
Conversion of chicken shed to two residential dwellings and landscaping.
Demolition of existing conservatory, side extension and chimneys. Conversion of part of the garage. Single storey side extension to the South Elevation. The existing pitched tile roof to be extended by the addition of new side elevation gables. New gables end roofs. New dormer Roof set into the new full width pitched roof. Juliet glazed balcony. New entrance to porch, new roof on garage, rooflights and alterations to fenestration.
£100k–£250kSevenoaks
Demolition of conservatory and side extension, conversion of garage, and construction of a new side extension.
Examples of projects at an early stage before wider competition builds.
See All 123 Construction Leads in Sevenoaks
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Get Access NowPlanning Application Outcomes in Sevenoaks
34%
Approved
57%
Pending
9%
Rejected
In Sevenoaks, 34% of planning applications are approved, 57% are still pending, and 9% are rejected. Contacting homeowners early gives you the best chance of winning work.
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, 79% of planning applications are domestic and 21% are commercial. Both segments offer opportunities depending on the scale of work you take on.
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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