Updated 21 September 2026 · 69 new leads in the last 30 days
Construction Leads in Islington
Find construction leads in Islington from live planning applications submitted across the borough. Identify homeowners in Barnsbury, Canonbury, Highbury, and Holloway planning building work before the project goes out to builders.
- Sourced from Islington Council planning records, refreshed regularly
- See projects at submission stage, before a builder has been chosen
- Direct contact with homeowners. No shared enquiries.
Data sourced from Islington Council planning records, updated regularly.
69
New Leads (30 Days)
£151,630
Average Project Value
17
High Value Projects
Over £100k
Extensions
Most Common Project
Construction Trends in Islington
Islington is one of the most densely built inner London boroughs, and the housing reflects that. Barnsbury and Canonbury are lined with Georgian and early-Victorian townhouses, many listed or within conservation areas, where tight plots and strict planning policies push demand toward basement excavations, internal reconfigurations, and carefully designed loft schemes. Highbury has a slightly different character, with larger Victorian terraces and semis that lend themselves more readily to rear extensions and dormer conversions. Holloway and Caledonian Road are more mixed, with a combination of Victorian terrace rows and post-war housing where the applications tend to be more practical in scope.
Project Type Breakdown
Below is a breakdown of the most common construction project types submitted to Islington Council over the past 30 days.
In Islington, Extensions account for the majority of planning applications (35 of 88 in the last 30 days), with Heritages also showing consistent demand alongside Garden Rooms.
Most Active Architects and Planning Consultants in Islington
The architects and planning consultants submitting the most construction-related applications in Islington, based on recent planning records.
- 1Faithorn Farrell Timms LLP
- 2Bluelime
- 3MoreSpace
- 4Anna Janiak Studio Ltd.
- 5Arc Associates Architecture Limited
- 6Trevor Brown Architect
- 7Wilby & Burnett LLP
- 8Star Design Solutions Ltd
- 9Resi Design Ltd
- 10Francesco Zafarana Architect
Project Value Insights
Islington sits firmly in the higher band of London domestic project values. These ranges help you assess which leads are worth prioritising based on your team size and the type of work you take on.
- £25k – £50kInternal alterations, minor refurbishments, and smaller structural works
- £50k – £100kLoft conversions, rear extensions, and flat refurbishments
- £100k – £250kBasement conversions, whole-floor refurbishments, and double-storey additions
- £250k+Full townhouse renovations and basement excavations, particularly in Barnsbury and Canonbury
The highest-value work comes from Barnsbury, Canonbury, and Highbury, where Georgian and large Victorian properties command strong prices and owners invest accordingly.
Recent Planning Applications in Islington
Extensions
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| Wrap-Around Extension | Flat A, 4 Monnery Road, London, N19 5RZ | Under £25k | Alterations to a residential flat including installation of new doors to the existing rear extension at lower-ground-floor level and associated internal alterations. | Pending |
| Extension | 56 Offord Road, London | £50k–£100k | Construction of a mansard roof extension. | Pending |
| Single Storey Rear Extension | 2 Lidyard Road, London, N19 5NR | £50k–£100k | Erection of a single-storey rear extension and associated alterations. | Pending |
| Rear Extension | Land between 6 and 9 Dagmar Terrace, London, N1 2BN | £250k–£1m | Section 73 application to vary condition 2 (approved plans) and condition 10 (M4(2) accessibility wording) of P2017/2117/FUL; amendments to mansard/butterfly roof detailing, single mansard window, rear extension height and fenestration. | Approved |
| Rear Extension | 6A, Cloudesley Square, London, N1 0HT | £25k–£50k | Targeted repointing and localized brick repairs to flank elevation, rear extension elevation and rear garden boundary wall using matching lime mortar and salvaged bricks. | Pending |
Wrap-Around Extension
Flat A, 4 Monnery Road, London, N19 5RZ
Alterations to a residential flat including installation of new doors to the existing rear extension at lower-ground-floor level and associated internal alterations.
Extension
56 Offord Road, London
Construction of a mansard roof extension.
Single Storey Rear Extension
2 Lidyard Road, London, N19 5NR
Erection of a single-storey rear extension and associated alterations.
Rear Extension
Land between 6 and 9 Dagmar Terrace, London, N1 2BN
Section 73 application to vary condition 2 (approved plans) and condition 10 (M4(2) accessibility wording) of P2017/2117/FUL; amendments to mansard/butterfly roof detailing, single mansard window, rear extension height and fenestration.
Rear Extension
6A, Cloudesley Square, London, N1 0HT
Targeted repointing and localized brick repairs to flank elevation, rear extension elevation and rear garden boundary wall using matching lime mortar and salvaged bricks.
Loft Conversions
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| Loft Conversion | 32 Gillespie Road, London, N5 1LN | £50k–£100k | Proposed rear dormer roof extensions to main and outrigger roofs and installation of two front rooflights (Certificate of Lawfulness: Proposed). | Pending |
| Loft Conversion | 12 Orleston Mews, London, N7 8LL | £50k–£100k | Amendments to P2025/3186/FUL: reposition a dormer triangular window (omit front, add rear), increase external balustrade height, add mansafe roof/rear safety system and other minor alterations. | Pending |
| Loft Conversion | Flat 3, 8 Birnam Road, London, N4 3LQ | £50k–£100k | Rear dormer roof extension and rear roof terrace with railing to Flat 3. | Pending |
| Loft Conversion | North Villa Adjacent 38, Windsor Road, London | £100k–£250k | Erection of a mansard roof extension to provide additional roof/loft accommodation. | Pending |
| Loft Conversion | Flat C, 60 Seven Sisters Road, London, N7 6AA | £50k–£100k | Loft conversion with rear dormer extension. | Pending |
Loft Conversion
32 Gillespie Road, London, N5 1LN
Proposed rear dormer roof extensions to main and outrigger roofs and installation of two front rooflights (Certificate of Lawfulness: Proposed).
Loft Conversion
12 Orleston Mews, London, N7 8LL
Amendments to P2025/3186/FUL: reposition a dormer triangular window (omit front, add rear), increase external balustrade height, add mansafe roof/rear safety system and other minor alterations.
Loft Conversion
Flat 3, 8 Birnam Road, London, N4 3LQ
Rear dormer roof extension and rear roof terrace with railing to Flat 3.
Loft Conversion
North Villa Adjacent 38, Windsor Road, London
Erection of a mansard roof extension to provide additional roof/loft accommodation.
Loft Conversion
Flat C, 60 Seven Sisters Road, London, N7 6AA
Loft conversion with rear dormer extension.
Other Projects
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| Heritage | 33 Pentonville Road, London | £25k–£50k | Listed building works: replace internal flat entrance doors, architraves and fanlights; install new fire alarm and emergency lighting; replace electrical cupboard. | Pending |
| Heritage | 9 Copenhagen Street, London, N1 0JB | £25k–£50k | Replace six single‑glazed timber sash windows and timber box frames with double glazed timber sashes to the front elevation, with associated repointing and roof repairs (linked LBC submitted). | Pending |
| Heritage | 34, SUDELEY STREET, LONDON, ISLINGTON, N1 8HW | £50k–£100k | Retrospective listed building consent for reroofing of the front elevation. | Pending |
| Heritage | 115, Youngs brewery, Upper Street, London, N1 1QN | £100k–£250k | Structural repairs and strengthening of roof, replacement lintels, re-form box gutter, re-tile roof with new rooflight, plus window and ceiling repairs (listed building works). | Pending |
| Heritage | London | £100k–£250k | Structural roof repairs, replacement lintels, re-forming box gutter, re-tiling with new rooflight, and internal ceiling/window repairs (listed building application). | Pending |
Heritage
33 Pentonville Road, London
Listed building works: replace internal flat entrance doors, architraves and fanlights; install new fire alarm and emergency lighting; replace electrical cupboard.
Heritage
9 Copenhagen Street, London, N1 0JB
Replace six single‑glazed timber sash windows and timber box frames with double glazed timber sashes to the front elevation, with associated repointing and roof repairs (linked LBC submitted).
Heritage
34, SUDELEY STREET, LONDON, ISLINGTON, N1 8HW
Retrospective listed building consent for reroofing of the front elevation.
Heritage
115, Youngs brewery, Upper Street, London, N1 1QN
Structural repairs and strengthening of roof, replacement lintels, re-form box gutter, re-tile roof with new rooflight, plus window and ceiling repairs (listed building works).
Heritage
London
Structural roof repairs, replacement lintels, re-forming box gutter, re-tiling with new rooflight, and internal ceiling/window repairs (listed building application).
Data sourced from Islington Council planning records, updated regularly.
Featured Projects
A selection of live planning applications from across Islington that builders can act on now.
Replacement of internal flat entrance doors, architraves and fanlights, installation of new fire alarm system and emergency lighting, and replacement electrical cupboard.
£25k–£50k33 Pentonville Road, London
Listed building works: replace internal flat entrance doors, architraves and fanlights; install new fire alarm and emergency lighting; replace electrical cupboard.
Replacement of 6 single glazed timber sash windows and timber box frames with double glazed timber sashes to the front elevation, and associated repointing and roof repairs [Listed Building consent P2026/2247/LBC also submitted].
£25k–£50k9 Copenhagen Street, London, N1 0JB
Replace six single‑glazed timber sash windows and timber box frames with double glazed timber sashes to the front elevation, with associated repointing and roof repairs (linked LBC submitted).
Alteration to the existing residential flat, including the installation of new doors to the existing rear extension at lower-ground-floor level and associated internal alterations
Under £25kFlat A, 4 Monnery Road, London, N19 5RZ
Alterations to a residential flat including installation of new doors to the existing rear extension at lower-ground-floor level and associated internal alterations.
Retrospective Listed Building Consent application for reroofing the front 'butterfly roof and rear attic roof in natural slate, replacing cement slates at the front and decayed slates on the rear roof, including replacing the rotting roof timbers which had dry rot. All recorded by the roofing contractors
£50k–£100k34, SUDELEY STREET, LONDON, ISLINGTON, N1 8HW
Retrospective listed building consent for reroofing of the front elevation.
Live Islington applications at a stage where making contact is worthwhile.
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Get Access NowPlanning Application Outcomes in Islington
16%
Approved
84%
Pending
0%
Rejected
In Islington, 16% of planning applications are approved, 84% are still pending, and 0% 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 Islington
In Islington, most planning applications are decided within 26 weeks. Smaller projects like extensions tend to be approved more quickly, while larger developments can take longer.
Domestic vs Commercial Projects in Islington
In Islington, 55% of planning applications are domestic and 45% are commercial. Both segments offer opportunities depending on the scale of work you take on.
Demand for Building Work in Islington
Property values across Islington are high throughout, and owners here tend to invest seriously in their homes. Georgian townhouses in Barnsbury and Canonbury regularly sell for well over a million pounds, and buyers at that level expect to spend significantly on works after moving in. Because plots are small and above-ground extensions are often restricted or refused, the investment tends to go into what is already there: reconfiguring layouts, improving finishes, opening up below-ground space. In Highbury, where houses are slightly larger and gardens exist, extensions are more feasible and applications for them appear regularly.
How to Win Jobs in Islington
Contact Homeowners Early
Planning applications identify who is preparing to build across Islington. Getting in at the right stage gives you a clear advantage over builders who wait to be approached.
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 high-quality residential work in Islington through live planning data.
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We monitor Islington Council and surrounding authorities daily for new residential projects.
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Nearby Areas
Builders active in Islington often work across Camden, Haringey, and Hackney too, all close enough to cover without stretching too far and producing a steady flow of similar residential projects.
Frequently Asked Questions
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