Top Construction Projects in London 2026

Highways and Public Realm Contract is the top construction project in London

The top construction project in London is the Highways and Public Realm Contract valued at £1,250,000,000.

2nd place - The British Library Extension valued at £1,100,000,000.

3rd place - Planned Investment and Major Works valued at £1,015,000,000.

What is the Top 100 Construction projects UK League Table?

The Top 100 construction projects league table shows you detailed information on the UK’s largest construction projects including name, sector, region and start date. Giving you the insight to contact new opportunities and win more business.

How we determine the top construction projects in the UK

The top construction projects league table is determined by an extensive research process. We use market leading technology, exclusive data, and ongoing media scanning to get sight of UK construction projects. Our team of 160 dedicated researchers then validate this data by making over 1 million phone calls a year and receiving 30,000 real-time information updates each day. This rigorous research process ensures quality and reliability. Making it the most accurate and up-to-date construction data available.

Other Top Construction Project League Tables by Region and City

Regional Tables: East Midlands East of England London North East Northern Ireland North West South East South West Scotland West Midlands Wales Yorkshire & The Humber

County & City Tables: Manchester Birmingham Liverpool Aberdeen Cardiff Nottingham Edinburgh

The Top 30 construction projects in London

Position	Value	Project Name	Sector	Region	Start Date	Project ID	Projects
1	£1,250,000,000	Highways and Public Realm Contract	Civil (Infrastructure)	London	01/10/2026	25089949	See project info
2	£1,100,000,000	The British Library Extension	Offices / Commercial	London	09/03/2026	15291949	See project info
3	£1,015,000,000	Planned Investment and Major Works	Social Housing	London	01/04/2026	24314567	See project info
4	£600,000,000	Euston Tower Science Innovation Hub	Offices / Commercial	London	28/11/2026	23220803	See project info
5	£400,000,000	Coppernills High Lift Pumping Station	Civil (Utilities)	London	13/04/2026	24008064	See project info
6	£330,000,000	60 Gracechurch Street	Offices / Commercial	London	13/08/2026	24112367	See project info
7	£320,000,000	PE0602 Mechanical and Electrical Building Services Repairs, Maintenance and Compliance Programme	Social Housing	London	02/03/2026	25123911	See project info
8	£300,000,000	Albert & Swedish Wharf Development	Private Housing	London	12/10/2026	14271580	See project info
9	£282,000,000	55 Old Broad Street	Offices / Commercial	London	12/10/2026	23179273	See project info
10	£280,000,000	Battersea Power Station Phase 3C	Private Housing	London	01/06/2026	24154508	See project info
11	£229,000,000	Ebury Bridge Estate Phase 2	Social Housing	London	15/06/2026	24086754	See project info
12	£220,000,000	Paddington Overstation Development - Triangle Development Site	Offices / Commercial	London	20/04/2026	5605615	See project info
13	£200,000,000	Crystal Palace Football Club Selhurst Park Stadium Main Stand Development	Hotel & Leisure	London	06/05/2026	17438932	See project info
14	£200,000,000	50 Baker Street	Offices / Commercial	London	01/02/2027	22373409	See project info
15	£186,000,000	Regina Road Phase 1	Social Housing	London	21/09/2026	25349855	See project info
16	£150,000,000	City Hall 110 The Queens Walk	Offices / Commercial	London	31/07/2026	23398524	See project info
17	£150,000,000	EDGE Shaftesbury	Offices / Commercial	London	19/11/2026	14063057	See project info
18	£150,000,000	Infrastructure Maintenance Contract 3 (IMC3)	Civil (Infrastructure)	London	01/05/2026	24098837	See project info
19	£147,270,000	Fusion BX1 / Plot 43B Brent Cross Town	Social Housing	London	28/08/2026	24238548	See project info
20	£138,120,000	Office (Extension/Alterations)	Offices / Commercial	London	13/11/2026	24347947	See project info
21	£130,000,000	The Crystal Palace National Sports Centre	Hotel & Leisure	London	23/11/2026	11034790	See project info
22	£127,886,000	Highways Term Service Contract	Civil (Infrastructure)	London	07/10/2026	25405083	See project info
23	£125,000,000	Merck Building Fit Out	Offices / Commercial	London	06/07/2026	24065172	See project info
24	£122,301,000	Highways Maintenance	Civil (Infrastructure)	London	01/07/2026	25597086	See project info
25	£120,000,000	Schools Property Flood Resilience: Regional Providers (Design and Build)	Education	London	01/09/2026	25629786	See project info
26	£119,020,000	Bridges and Structures Maintenance Contract	Civil (Infrastructure)	London	07/04/2026	25180645	See project info
27	£117,721,000	Meridian Quays Plots 1.02 & 1.03	Private Housing	London	24/11/2026	23187666	See project info
28	£117,210,000	Portal Way Development	Private Housing	London	05/10/2026	19009058	See project info
29	£110,000,000	Office (Extension/Alterations)	Offices / Commercial	London	18/05/2026	24307776	See project info
30	£105,000,000	XYLO	Offices / Commercial	London	03/08/2026	22403904	See project info

Source: Glenigan | Last updated: 1st October 2026

League Tables From Glenigan

Built on the most accurate and up-to-date construction data available, our league table data allows you to see which construction companies are winning the most work, which construction projects are the most valuable, and which are open for tender.

This insight allows you to identify and contact new construction opportunities, allowing you to win more business and succeed in your market.

Top Construction Companies

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