Updated 22 October 2026 · 100 new leads in the last 30 days
Access construction leads in Tonbridge and Malling by tracking newly submitted planning applications. See which homeowners and developers across the borough are preparing extensions, loft conversions, and new builds, and get in touch before they begin shortlisting builders.
Data sourced from Tonbridge and Malling Borough Council planning records and refreshed regularly.
100
New Leads (30 Days)
£203,954
Average Project Value
38
High Value Projects
Over £100k
Extensions
Most Common Project
Tonbridge and Malling covers a wide mix of historic towns, planned new communities, and Kent Downs countryside. Tonbridge itself has a conservation area around its Norman castle and High Street, where alterations to older buildings often need planning permission rather than falling under permitted development. West Malling, with its ruined abbey and Georgian houses, has a similarly protected village character. Kings Hill, built on a former airfield south of West Malling, is one of the borough's largest planned communities — a substantial mixed-use development combining business park space with ongoing phases of new-build housing. Aylesford, on the River Medway, keeps a historic core around its priory and medieval bridge alongside newer residential development on former industrial land nearby. Borough Green and Snodland, the borough's other main towns, generate a steadier flow of extensions and loft conversions on their largely Victorian and inter-war housing stock. Parts of the borough around Wrotham and Trottiscliffe sit within the Kent Downs National Landscape, restricting large-scale development but still producing barn conversion and extension work on rural properties.
Here's a breakdown of the most common types of construction projects in Tonbridge and Malling over the past 30 days.
In Tonbridge and Malling, Extensions are the most common project type, appearing in 48 of the 100 leads tracked in the last 30 days, with Garden Rooms also showing consistent demand alongside New Builds. Projects can fall into more than one category, so these figures don't need to add up to the total.
The architects and planning consultants submitting the most construction-related applications in Tonbridge and Malling, based on recent planning records.
Understanding typical project values in Tonbridge and Malling 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 in Tonbridge, West Malling, and around Kings Hill, where larger properties and new-build plots are common.
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| Side Extension | 28 Westwood Road East Peckham Tonbridge Kent TN12 5DE | £250k–£1m | Demolition of existing side extension and garage, and construction of a four-bedroom detached house with garden room. | Withdrawn |
| Double Storey Extension | Unit 4 Arnolds Business Park Branbridges Road East Peckham Tonbridge Kent TN12 5LG | £100k–£250k | Two storey extension to provide additional office space and staff welfare areas. | Approved |
| Extension | Hildenborough Ashes Lane Hadlow Tonbridge Kent TN11 9QU | £100k–£250k | Demolition of garage and office, with ground and second floor extensions to a bungalow and a new annex. | Approved |
| Extension | First Floor And Second Floor Carlton House Botany Tonbridge Kent TN9 1SA | £100k–£250k | Creation of a 2-bed flat with roof extension and amenity space. | Approved |
| Double Storey Extension | Rose Cottage 440 Lunsford Lane Larkfield Aylesford Kent ME20 6JA | £100k–£250k | Two storey extension to front, dormer to rear, and alterations to existing roof. | Approved |
Side Extension
28 Westwood Road East Peckham Tonbridge Kent TN12 5DE
Demolition of existing side extension and garage, and construction of a four-bedroom detached house with garden room.
Double Storey Extension
Unit 4 Arnolds Business Park Branbridges Road East Peckham Tonbridge Kent TN12 5LG
Two storey extension to provide additional office space and staff welfare areas.
Extension
Hildenborough Ashes Lane Hadlow Tonbridge Kent TN11 9QU
Demolition of garage and office, with ground and second floor extensions to a bungalow and a new annex.
Extension
First Floor And Second Floor Carlton House Botany Tonbridge Kent TN9 1SA
Creation of a 2-bed flat with roof extension and amenity space.
Double Storey Extension
Rose Cottage 440 Lunsford Lane Larkfield Aylesford Kent ME20 6JA
Two storey extension to front, dormer to rear, and alterations to existing roof.
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| Loft Conversion | 4 Farleigh Gardens Wouldham Rochester Kent ME1 3FF | £50k–£100k | Proposed loft conversion with a rear dormer and Velux windows to the front elevation (lawful development certificate). | Approved |
| Loft Conversion | 5 Woodfield Avenue Hildenborough Tonbridge Kent TN11 9ES | £50k–£100k | Proposed lawful development certificate for loft conversion (hip-to-gable, rear dormer with Juliet balcony), two front rooflights and external air conditioning unit. | Approved |
| Loft Conversion | 57 Chichester Road Tonbridge Kent TN9 2TJ | £50k–£100k | Proposed lawful development certificate for loft conversion with rear dormer and two front rooflights. | Approved |
| Loft Conversion | 6 Waterloo Walk Kings Hill West Malling Kent ME19 4QS | £50k–£100k | Proposed rear flat-roof dormer extension. | Pending |
| Loft Conversion | 15 Linnitt Road Snodland Kent ME6 5FE | £50k–£100k | Loft conversion with pitched roof dormer, one front rooflight and rear dormer window. | Pending |
Loft Conversion
4 Farleigh Gardens Wouldham Rochester Kent ME1 3FF
Proposed loft conversion with a rear dormer and Velux windows to the front elevation (lawful development certificate).
Loft Conversion
5 Woodfield Avenue Hildenborough Tonbridge Kent TN11 9ES
Proposed lawful development certificate for loft conversion (hip-to-gable, rear dormer with Juliet balcony), two front rooflights and external air conditioning unit.
Loft Conversion
57 Chichester Road Tonbridge Kent TN9 2TJ
Proposed lawful development certificate for loft conversion with rear dormer and two front rooflights.
Loft Conversion
6 Waterloo Walk Kings Hill West Malling Kent ME19 4QS
Proposed rear flat-roof dormer extension.
Loft Conversion
15 Linnitt Road Snodland Kent ME6 5FE
Loft conversion with pitched roof dormer, one front rooflight and rear dormer window.
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| New Build | Tonbridge and Malling | £250k–£1m | Partial demolition of existing structure and construction of a new dwelling. | Approved |
| Garage Conversion | 26 The Old Road East Malling West Malling Kent ME19 6GZ | £25k–£50k | Proposed garage conversion. | Approved |
| New Build | St Ives Pilgrims Way Trottiscliffe West Malling Kent ME19 5EP | £250k–£1m | Demolition of existing property and replacement with a detached 3-bedroom dwelling. | Withdrawn |
| New Build | 440 Wateringbury Road East Malling West Malling Kent ME19 6JJ | £250k–£1m | Erection of a single-storey detached dwelling with landscaping and boundary treatments. | Refused |
| New Build | Land North East And South Of 161 Wateringbury Road East Malling West Malling Kent | £1m+ | Details of condition 8 for outline application to erect up to 52 residential dwellings. | Approved |
New Build
Tonbridge and Malling
Partial demolition of existing structure and construction of a new dwelling.
Garage Conversion
26 The Old Road East Malling West Malling Kent ME19 6GZ
Proposed garage conversion.
New Build
St Ives Pilgrims Way Trottiscliffe West Malling Kent ME19 5EP
Demolition of existing property and replacement with a detached 3-bedroom dwelling.
New Build
440 Wateringbury Road East Malling West Malling Kent ME19 6JJ
Erection of a single-storey detached dwelling with landscaping and boundary treatments.
New Build
Land North East And South Of 161 Wateringbury Road East Malling West Malling Kent
Details of condition 8 for outline application to erect up to 52 residential dwellings.
Data sourced from Tonbridge and Malling Borough Council planning records and refreshed regularly.
A snapshot of recent construction opportunities across Tonbridge and Malling.
28 Westwood Road East Peckham Tonbridge Kent TN12 5DE
Demolition of existing side extension and garage, and construction of a four-bedroom detached house with garden room.
Tonbridge and Malling
Partial demolition of existing structure and construction of a new dwelling.
Unit 4 Arnolds Business Park Branbridges Road East Peckham Tonbridge Kent TN12 5LG
Two storey extension to provide additional office space and staff welfare areas.
Hildenborough Ashes Lane Hadlow Tonbridge Kent TN11 9QU
Demolition of garage and office, with ground and second floor extensions to a bungalow and a new annex.
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 Now44%
Approved
55%
Pending
1%
Refused
In Tonbridge and Malling, 44% of planning applications are approved, 55% are still pending, and 1% are refused. Pending applications can give builders an opportunity to make contact while projects are still at an early stage.
Earlier contact usually means less competition.
Based on planning applications submitted over the last 30 days.
Among applications tracked by BuildAlert in Tonbridge and Malling, 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.
In Tonbridge and Malling, 75% of planning applications are domestic and 25% are commercial. Both segments offer opportunities depending on the scale of work you take on.
Tonbridge and Malling sits conveniently between Sevenoaks, Maidstone, and Tunbridge Wells, giving it strong commuter appeal alongside a genuinely varied housing market. Kings Hill remains the borough's clearest new-build growth engine, with successive phases of housing continuing to generate groundworks and finishing trade work well beyond the site's original masterplan. Tonbridge and West Malling, by contrast, support higher-spec renovation and extension work reflecting their historic housing stock and established household budgets, while Aylesford, Borough Green, and Snodland offer a more accessible mix of smaller-scale extension and refurbishment projects.
Planning applications highlight upcoming work, giving you a chance to get in touch before builders are shortlisted.
Approved applications can be particularly valuable because the project has cleared a major planning hurdle and may be moving closer to construction.
Filter by estimated project value to focus your outreach on jobs that match the size and type of work your business takes on.
Three simple steps to start winning more construction work in Tonbridge and Malling.
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