How we select the top construction projects in London
We’ve curated the Barbour ABI data to bring you the top construction projects in London in 2026. This includes the top construction projects by total value across all sectors with a start date 6 months back, and 6 months forward. Please note that we have excluded all masterplans from our league tables.
G Park 1 London Docklands Data Centres is Top Construction Project in London
According to Barbour ABI planning data, G Park 1 Docklands Data Centre is the top construction project in London valued at £1.5bn. In second place is the £1.2bn G Park 2 London Docklands – 70MW Data Centres (Building 2&3). Taking third place is the 18 Blackfriars Road £1bn Mixed Development.
Last Updated: April 2026
Top Construction Projects 2026
Regional Tables: United Kingdom | South East | South West | East of England | East Midlands | West Midlands | Northern Ireland | North West | Wales | Yorkshire & the Humber | North East | Scotland
City Tables: Birmingham | Liverpool | Manchester | Aberdeen | Cardiff | Nottingham | Glasgow |
| Position | Project | Main Sector | Location | Start Date | Project Value | Project ID | View Project |
|---|---|---|---|---|---|---|---|
| 1 | G Park 1 London Docklands – Data Centre | Commercial & Retail | London | 01/06/2026 | £ 1,500,000,000 | 12734326 | View project |
| 2 | G Park 2 London Docklands – 70MW Data Centres (Building 2 & 3) | Commercial & Retail | London | 01/05/2026 | £ 1,200,000,000 | 12406621 | View project |
| 3 | 18 Blackfriars Road – Mixed Development | Hotel & Catering | London | 30/09/2026 | £ 1,000,000,000 | 11810009 | View project |
| 4 | Bidder Street – Data Centre | Commercial & Retail | London | 01/06/2026 | £ 750,000,000 | 12760878 | View project |
| 5 | 55 Old Broad Street – Office | Commercial & Retail | London | 29/09/2026 | £ 500,000,000 | 12705327 | View project |
| 6 | Allianz House, 60 Gracechurch Street – Office | Commercial & Retail | London | 01/01/2026 | £ 500,000,000 | 12781935 | View project |
| 7 | G Park 2 London Docklands – 70MW Data Centre – Building 1 (Shell & Core) | Commercial & Retail | London | 01/04/2026 | £ 500,000,000 | 12900840 | View project |
| 8 | Project Roar, Southwark | Commercial & Retail | London | 01/12/2025 | £ 450,000,000 | 12495539 | View project |
| 9 | Grafton Street & New Bond Street Redevelopment – Building 3 | Hotel & Catering | London | 01/07/2026 | £ 440,000,000 | 12832116 | View project |
| 10 | 140 Bastion House – Office Development | Leisure | London | 01/07/2026 | £ 437,000,000 | 12760573 | View project |
| 11 | 120 Fleet Street – Offices & Retail Units | Commercial & Retail | London | 01/07/2026 | £ 429,000,000 | 12586543 | View project |
| 12 | Bollo Lane, Phase 1 & 2 – Building 1A & 3A | Residential | London | 01/03/2026 | £ 400,000,000 | 12512075 | View project |
| 13 | Global Switch London South – 40MW Data Centre | Commercial & Retail | London | 01/06/2026 | £ 400,000,000 | 12617985 | View project |
| 14 | The Dovetail Building, Houndsditch – Offices & Retail | Commercial & Retail | London | 01/09/2026 | £ 400,000,000 | 12585530 | View project |
| 15 | 99 City Road – Old Street Tower Office | Commercial & Retail | London | 01/01/2026 | £ 300,000,000 | 12680143 | View project |
| 16 | Church Street Regeneration, Site A – 388 Flats, Library and Commercial Space | Residential | London | 01/11/2025 | £ 275,000,000 | 12500416 | View project |
| 17 | Westferry Printworks – 1358 Flats/Secondary School/Police Station | Residential | London | 17/07/2026 | £ 273,970,800 | 12162264 | View project |
| 18 | 1 Appold Street – Offices & Restaurant | Commercial & Retail | London | 21/06/2026 | £ 273,000,000 | 12686988 | View project |
| 19 | Botanical House – 455 Apartments & Community Centre | Residential | London | 01/06/2026 | £ 270,000,000 | 12693587 | View project |
| 20 | 99 Bishopsgate – Office, Community, Retail & Restaurant | Commercial & Retail | London | 01/07/2026 | £ 250,000,000 | 12745056 | View project |
| 21 | Former Surrey County Hall – Mixed Development | Residential | London | 01/01/2026 | £ 250,000,000 | 12615245 | View project |
| 22 | Guys and St Thomas NHS – Evelina 2 – Triangle Building | Medical & Healthcare | London | 21/10/2026 | £ 250,000,000 | 12443303 | View project |
| 23 | Hammersmith Bridge – Major Repair Works | Civil Engineering | London | 01/10/2026 | £ 250,000,000 | 12435848 | View project |
| 24 | The Stag Brewery – Area 1 – 588 Apartments/Offices | Residential | London | 01/07/2026 | £ 250,000,000 | 12352672 | View project |
| 25 | Ebury Bridge Estate, Phase 2 – 334 Apartments | Residential | London | 01/08/2026 | £ 229,000,000 | 12643843 | View project |
| 26 | New Bermondsey – Phase 1 | Residential | London | 01/06/2026 | £ 217,900,000 | 11890724 | View project |
| 27 | Herringham Quarter, Charlton Riverside Development Phase 1 | Residential | London | 01/06/2026 | £ 212,000,000 | 12470960 | View project |
| 28 | Bishopsgate Goodsyard Redevelopment – Site 1 | Commercial & Retail | London | 01/10/2026 | £ 205,014,000 | 12096991 | View project |
| 29 | 65 Gresham Street – Redevelopment | Commercial & Retail | London | 01/06/2026 | £ 200,000,000 | 12666768 | View project |
| 30 | Battersea Power Station, Phase 3c – Mixed Development | Residential | London | 01/05/2026 | £ 200,000,000 | 12787927 | View project |
Learn how to win more projects in London with our free guide
Tips, tricks, and industry best practice ideas, designed to help you succeed.
- Get the most out of your construction leads
- Grow your business at your pace
- Generate more leads through SEO
Your London Expert
Adam Fields
Area Sales Manager, Barbour ABI
Adam is your direct line to winning more work and building your project pipeline in London. Book a call in his diary today in the link below.
Top Construction Projects across the UK
Barbour ABI tracks and reports on projects happening across the UK from pre-planning stages right through to completion. Our 3,000 happy clients use this data to supply their products and services on projects that are right for them, with the most up-to-date contact information available on the market.
Top Construction Companies
Access the top 100 construction companies in the UK. The companies include top contractors, architects and clients and are ranked by total value of projects across a 12-month period and can be filtered by role, number of projects, value, and links straight to the Barbour ABI project leads platform. View the top construction companies overall in the UK such as London as well as major regions and cities.
Tender League Tables
Monthly Top 50 League Tables from Barbour ABI
Barbour ABI’s Top 50 League Tables is designed to provide company intelligence for those working within construction and beyond. We report on the top 50 clients, architects and contractors for the month, as well as the last 12 months.
We publish these league tables directly on our website each and every month for free.
