Updated 26 July 2026 · 396 new leads in the last 30 days
Construction Leads in Barnet
Browse construction leads in Barnet from recently published planning applications across the borough. See which homeowners are preparing building work and make contact while the project is still being planned.
- Built from Barnet Council planning submissions
- Find projects while homeowners are still shaping the brief
- No bidding platforms or shared enquiry lists
Data sourced from Barnet Council planning records and refreshed regularly.
396
New Leads (30 Days)
£157,011
Average Project Value
144
High Value Projects
Over £100k
Extensions
Most Common Project
Construction Trends in Barnet
Barnet has one of north London’s strongest suburban housing markets, with a broad mix of 1930s semis, Edwardian terraces, detached family homes, and larger properties on generous plots. New Barnet, Friern Barnet, and East Barnet often produce rear extensions, loft conversions, and side additions, while Mill Hill, Totteridge, and Hadley Wood bring through more substantial refurbishments and structural schemes. Around Finchley, Golders Green, and Hampstead Garden Suburb, older homes and conservation constraints can create more detailed planning applications for alterations, roof work, and carefully designed extensions.
Project Type Breakdown
The chart below shows recent planning applications in Barnet by project type, giving builders a clearer view of the domestic work currently moving through the borough.
In Barnet, Extensions account for the majority of planning applications (320 of 495 in the last 30 days), with Garden Rooms also showing consistent demand alongside Porches.
Project Value Insights
Project budgets in Barnet cover a wide range. These value bands help you focus on opportunities that fit your team, workload, and margins.
- £25k – £50kGarage conversions, garden studios, smaller rear additions, and internal upgrades
- £50k – £100kDormer loft conversions, side extensions, and larger single-storey works
- £100k – £250kTwo-storey extensions, wraparound additions, and substantial home refurbishments
- £250k+Major structural alterations, high-spec renovations, and large detached-home projects
Higher-value projects are more common around Totteridge, Hadley Wood, Mill Hill, and Hampstead Garden Suburb, where larger homes, premium finishes, and stronger renovation budgets can support more ambitious work.
Recent Planning Applications in Barnet
Extensions
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| Rear Extension | 31 Hodford Road London NW11 8NL | £50k–£100k | Alterations to front porch and first floor rear extension with juliette balcony. | Approved |
| Wrap-Around Extension | London Borough of Barnet | £100k–£250k | Part single, part two storey side and rear extensions with a rear outbuilding. | Approved |
| Wrap-Around Extension | London Borough of Barnet | £250k–£1m | Single storey side and rear extension, two storey side extension, and new front bay window. | Approved |
| Rear Extension | London | £100k–£250k | First floor rear extension to both properties and change of ground floor roof from pitched to flat roof. | Refused |
| Rear Extension | Greater London | £50k–£100k | Roof extension including rear dormer window with juliette balcony and rooflights. | Approved |
Rear Extension
31 Hodford Road London NW11 8NL
Alterations to front porch and first floor rear extension with juliette balcony.
Wrap-Around Extension
London Borough of Barnet
Part single, part two storey side and rear extensions with a rear outbuilding.
Wrap-Around Extension
London Borough of Barnet
Single storey side and rear extension, two storey side extension, and new front bay window.
Rear Extension
London
First floor rear extension to both properties and change of ground floor roof from pitched to flat roof.
Rear Extension
Greater London
Roof extension including rear dormer window with juliette balcony and rooflights.
Loft Conversions
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| Loft Conversion | Greater London | £50k–£100k | Roof extension involving hip to gable, rear dormer window, and front facing rooflights. | Approved |
| Loft Conversion | Greater London | £50k–£100k | Conversion of integral garage to habitable space with roof extension and dormer window. | Approved |
| Loft Conversion | Greater London | £100k–£250k | Conversion of 2 self-contained flats to 3 with roof extension and dormer. | Pending |
| Loft Conversion | 1 Woodville Gardens London NW11 9ED | £50k–£100k | Roof extension involving hip to gable, rear dormer and front facing rooflights. | Pending |
| Loft Conversion | 37 Church Way London N20 0JZ | £100k–£250k | Infill single storey side extension, two storey rear extension, roof extension with loft conversion, and garage conversion. | Pending |
Loft Conversion
Greater London
Roof extension involving hip to gable, rear dormer window, and front facing rooflights.
Loft Conversion
Greater London
Conversion of integral garage to habitable space with roof extension and dormer window.
Loft Conversion
Greater London
Conversion of 2 self-contained flats to 3 with roof extension and dormer.
Loft Conversion
1 Woodville Gardens London NW11 9ED
Roof extension involving hip to gable, rear dormer and front facing rooflights.
Loft Conversion
37 Church Way London N20 0JZ
Infill single storey side extension, two storey rear extension, roof extension with loft conversion, and garage conversion.
Other Projects
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| Garden Room | Greater London | £250k–£1m | Demolition of existing dwelling and outbuildings, erection of a two storey dwelling with 3 self-contained flats. | Approved |
| New Build | Greater London | £250k–£1m | Demolition of existing dwelling and construction of two new dwellings. | Approved |
| New Build | London | £1m+ | Variation of conditions for demolition and construction of flats and office space. | Refused |
| Garden Room | Greater London | £25k–£50k | Erection of a rear outbuilding. | Approved |
| Garden Room | Greater London | £250k–£1m | Variation of condition for a two-storey building with 9 self-contained flats. | Approved |
Garden Room
Greater London
Demolition of existing dwelling and outbuildings, erection of a two storey dwelling with 3 self-contained flats.
New Build
Greater London
Demolition of existing dwelling and construction of two new dwellings.
New Build
London
Variation of conditions for demolition and construction of flats and office space.
Garden Room
Greater London
Erection of a rear outbuilding.
Garden Room
Greater London
Variation of condition for a two-storey building with 9 self-contained flats.
Data sourced from Barnet Council planning records and refreshed regularly.
Featured Projects
A selection of recent planning applications from across Barnet that local builders can follow up on.
Alterations to existing front porch including new pitched roof and 2no rooflights. First floor rear extension with juliette balcony and pitched roof
£50k–£100k31 Hodford Road London NW11 8NL
Alterations to front porch and first floor rear extension with juliette balcony.
Demolition of the existing dwelling and outbuildings and erection of a two storey dwelling with rooms in the roofspace to provide 3no. self-contained flats. Associated amenity space, refuse and recycling and cycle storage
£250k–£1mGreater London
Demolition of existing dwelling and outbuildings, erection of a two storey dwelling with 3 self-contained flats.
Part single, part two storey side and rear extensions. Erection of a rear outbuilding following demolition of the existing garage
£100k–£250kLondon Borough of Barnet
Part single, part two storey side and rear extensions with a rear outbuilding.
Single storey side and rear extension. Two storey side extension. New front bay window extension following removal of existing bay window. Alterations to front entrance
£250k–£1mLondon Borough of Barnet
Single storey side and rear extension, two storey side extension, and new front bay window.
Recent applications from across the borough that builders can follow up on.
See All 396 Construction Leads in Barnet
View full Barnet project details while homeowners are still shaping their plans.
Get Access NowPlanning Application Outcomes in Barnet
42%
Approved
48%
Pending
10%
Rejected
In Barnet, 42% of planning applications are approved, 48% are still pending, and 10% 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 Barnet
In Barnet, most planning applications are decided within 7 weeks. Smaller projects like extensions tend to be approved more quickly, while larger developments can take longer.
Domestic vs Commercial Projects in Barnet
In Barnet, the vast majority (95%) 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 Barnet
High property values in Barnet mean many owners treat building work as a serious long-term investment. Moving within north London can be expensive, so families often look to unlock more space from the home they already own. Older properties also create demand for wider upgrade work, including roofing, insulation, electrics, damp treatment, layout changes, kitchens, bathrooms, and full refurbishments alongside the more visible extension projects.
How to Win Jobs in Barnet
Contact Homeowners Early
Planning applications show who is preparing building work. Getting in touch at that stage helps you start the conversation before the project is widely quoted.
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 steps to start finding building work in Barnet through planning application data.
Track Planning Applications
We monitor Barnet Council and surrounding authorities daily for new residential projects.
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Contact Homeowners
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Nearby Areas
Builders working in Barnet often cover neighbouring north London boroughs too. Enfield, Haringey, Camden, and Harrow all sit within reach and bring through a useful mix of residential building work.
Frequently Asked Questions
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Find construction work in Barnet using planning data — no bidding platforms or shared enquiry lists.