Barbour ABI Blog

Top 100 Construction Projects in the UK

by Barbour ABI Content Team

London Gateway Port Building Extensions is Top UK Construction Project at £3bn

We’ve curated the Barbour ABI project planning data to bring you the top 100 construction projects within the UK. 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.

The top UK construction project is still the £3bn London Gateway Port Building Extensions. This project has featured in our number one spot for the majority of 2025. This project is followed by the Inch Cape 180 MW Offshore Windfarm valued at £1.5bn, and in third place is the East Anglia Three Offshore Windfarm. 

Top Construction Projects 2025

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

City Tables: London | Birmingham | Liverpool | Manchester | Aberdeen | Cardiff | Nottingham | Glasgow |

Position Project Main Sector Region Start Date Project Value Project ID View Project
1 London Gateway Port Building - Extensions Commercial & Retail East of England Jan-26 £ 3,000,000,000 12682618 View project
2 Inch Cape 1080 MW Offshore Windfarm Coastal Scotland Sep-25 £ 1,500,000,000 11897449 View project
3 East Anglia THREE - Offshore 1400MW Wind Farm Utilities East of England Feb-26 £ 1,400,000,000 12628074 View project
4 Port Talbot Steelworks - Electric Arc Furnace Industrial Wales Jun-25 £ 1,250,000,000 12819618 View project
5 HMP Glasgow - Super Prison Civic & Public Scotland Mar-25 £ 998,400,000 12390481 View project
6 East Anglia TWO Offshore 960MW Wind Farm Utilities East of England Feb-26 £ 900,000,000 12628697 View project
7 10 Dock Facility, Devonport Royal Dockyard Civil Engineering South West Apr-25 £ 750,000,000 12585985 View project
8 317MW Sheringham Shoal & 402MW Dudgeon Wind Farm Extension Utilities East of England Mar-26 £ 719,000,000 12566043 View project
9 Monklands Hospital Replacement Project Medical & Healthcare Scotland May-25 £ 700,000,000 12421843 View project
10 Cambridge Childrens Hospital Medical & Healthcare East of England Jan-26 £ 671,000,000 12545072 View project
11 Cambridge Cancer Research Hospital Medical & Healthcare East of England Jan-26 £ 600,000,000 12689976 View project
12 Stansted Airport - North Western Main Terminal Expansion Civil Engineering East of England Jan-26 £ 600,000,000 12730240 View project
13 Crown Street Phase 3 - 1746 Apartments/Demolition Residential North West Nov-25 £ 570,000,000 12309334 View project
14 Seagreen 1A 540MW Wind Farm Utilities Scotland Dec-25 £ 540,000,000 12717336 View project
15 60 Gracechurch Street - Office Commercial & Retail London Jan-26 £ 500,000,000 12781935 View project
16 Agratas Gigafactory, Gravity Smart Campus Phase 1 - Building One Industrial South West Apr-25 £ 500,000,000 12808180 View project
17 Cottam 600MW Solar Project Utilities East Midlands Nov-25 £ 500,000,000 12627877 View project
18 Heckington Fen Solar Park - 500MW Solar Farm & Battery Storage Utilities East Midlands Feb-26 £ 500,000,000 12598362 View project
19 ITV Studio Re-build - 60-72 Upper Ground Redevelopment Commercial & Retail London Mar-26 £ 500,000,000 12587228 View project
20 Sunnica Energy Farm - 500MW Solar Farm Utilities East of England Dec-25 £ 500,000,000 12423594 View project
21 Redcar Bulk Terminal - 49.9MW Waste to Energy Plant Utilities North East Jan-26 £ 450,000,000 12415382 View project
22 Therme Manchester - Wellbeing Resort Leisure North West Nov-25 £ 450,000,000 12445235 View project
23 Grafton Street & New Bond Street Redevelopment - Building 3 Hotel & Catering London Jan-26 £ 440,000,000 12832116 View project
24 140 Bastion House - Office Development Leisure London Feb-26 £ 437,000,000 12760573 View project
25 Thorpe Marsh Power Station - 1.45GW Battery Energy Storage - Option 1 Utilities Yorks & Humber Nov-25 £ 435,000,000 12551425 View project
26 120 Fleet Street - Offices & Retail Units Commercial & Retail London Jan-26 £ 429,000,000 12586543 View project
27 Thorpe Marsh Power Station, Marsh Lane - 1.40GW Battery Energy Storage- Option 2 Utilities Yorks & Humber Oct-25 £ 420,000,000 12699794 View project
28 Giles Lane - Student Accommodation & Sports Pavilion Residential South East Oct-25 £ 418,000,000 12536679 View project
29 50 Fenchurch Street Redevelopment - Hanging Gardens Commercial & Retail London Jul-25 £ 400,000,000 12471287 View project
30 Bollo Lane, Phase 1 & 2 - Building 1A & 3A Residential London Jul-25 £ 400,000,000 12512075 View project
31 Haymarket House, London - Apart Hotel Hotel & Catering London Jan-26 £ 400,000,000 12484654 View project
32 The Dovetail Building, Houndsditch - Offices & Retail Commercial & Retail London Nov-25 £ 400,000,000 12585530 View project
33 The Gasworks, New Town - 1202 Houses & Flats Residential North West Nov-25 £ 400,000,000 12320840 View project
34 HS2 - Birmingham Interchange Station Transport West Midlands Aug-25 £ 370,000,000 12001227 View project
35 Leake Lane, Ratcliffe - 1.2GW Battery Energy Storage Facility Utilities East Midlands Dec-25 £ 360,000,000 12668482 View project
36 Ciner Glass Limited - Dragon Glass Manufacturing Facility Industrial Wales Jan-26 £ 350,000,000 12599343 View project
37 Drumgray Energy Recovery Centre Utilities Scotland Jan-26 £ 350,000,000 12466627 View project
38 Gateshead Quays Arena - The Sage Development Sports North East Jan-26 £ 350,000,000 12101916 View project
39 Longfield - 500MW Solar Farm Utilities East of England Jan-26 £ 350,000,000 12627550 View project
40 Normanton Energy Reserve - 500MW Battery Storage Utilities East Midlands Dec-25 £ 350,000,000 12656772 View project
41 Sanquhar II Community 308MW Wind Farm Utilities Scotland May-25 £ 308,000,000 12370000 View project
42 Ebury Bridge Estate, Phase 2 - 334 Apartments Residential London Sep-25 £ 302,000,000 12643843 View project
43 Chrisp Street Market - Redevelopment Residential London Jan-26 £ 300,000,000 11273510 View project
44 City Centre South - Phase 1, 991 Flats & Commercial Space Residential West Midlands Nov-25 £ 300,000,000 12754873 View project
45 HMP Gartree 2 Civic & Public East Midlands Mar-25 £ 300,000,000 12577737 View project
46 Medworth Energy from Waste Combined Heat and Power Facility Power & Utility East of England Dec-25 £ 300,000,000 12627541 View project
47 Tech City - Old Street Tower Office Commercial & Retail London Jan-26 £ 300,000,000 12680143 View project
48 Third Energy UK Gas Limited - 100MW Battery Energy Storage Utilities Yorks & Humber Feb-26 £ 300,000,000 12594167 View project
49 Royal Cornwall Hospital, Phase 3A - Women & Children Facility Medical & Healthcare South West Oct-25 £ 291,700,000 12450469 View project
50 CWL2 Data Centre Campus Commercial & Retail Wales Mar-26 £ 285,000,000 12727863 View project
51 Fanny House Farm, Bay Gateway - 940MW Battery Storage Utilities North West Nov-25 £ 282,000,000 12718773 View project
52 Church Street Regeneration, Site A - 388 Flats, Library and Commercial Space Residential London Nov-25 £ 275,000,000 12500416 View project
53 Botanical House - 455 Apartments & Community Centre Residential London Jan-26 £ 270,000,000 12693587 View project
54 HS2 Birmingham Interchange People Mover Transport West Midlands Oct-25 £ 270,000,000 12444194 View project
55 Haughend Farm - 900MW Alyth Battery Energy Storage System Utilities Scotland Dec-25 £ 270,000,000 12653273 View project
56 Strathy South Forest 218.4MW Wind Farm Utilities Scotland Jun-25 £ 265,500,000 11139218 View project
57 84 Manor Road - 453 Houses & Retail Residential London Dec-25 £ 260,000,000 12423758 View project
58 Corby Energy Recovery Facility Industrial East Midlands Jan-26 £ 260,000,000 12222131 View project
59 Epic Long Ashton, Phase 1 - 3 Office Buildings Commercial & Retail South West Jan-26 £ 260,000,000 12741338 View project
60 A47 North Tuddenham To Easton Civil Engineering East of England May-25 £ 250,000,000 12147647 View project
61 Atlantic Wharf, Cardiff Bay - Music Arena & Travelodge Hotel Leisure Wales Jun-25 £ 250,000,000 12032395 View project
62 BAE Systems - Project Spartan Engineering and Research Building Industrial North West Mar-26 £ 250,000,000 12780812 View project
63 Ensign House, Isle Of Dogs - 495 Apartments & Commercial Residential London Nov-25 £ 250,000,000 12574477 View project
64 Former Surrey County Hall - Mixed Development Residential London Apr-25 £ 250,000,000 12615245 View project
65 Glenmuckloch - 400MW Pumped Storage Hydro Utilities Scotland Aug-25 £ 250,000,000 12645669 View project
66 Guys and St Thomas NHS - Evelina 2 - Triangle Building Medical & Healthcare London Nov-25 £ 250,000,000 12443303 View project
67 Hill House, Little New Street - Redevelopment Commercial & Retail London Oct-25 £ 250,000,000 12717891 View project
68 Melbourn Science Park - Redevelopment Industrial East of England Jan-26 £ 250,000,000 12696975 View project
69 The Clearings Site - 78 Flats, Retail, Gym & Cinema Residential London Oct-25 £ 250,000,000 12204352 View project
70 Botanic Place - Mixed Use Development Commercial & Retail East of England Apr-25 £ 242,000,000 12518746 View project
71 H2H Saltend Chemicals Park - 600MW Humber Blue Hydrogen Facility Utilities Yorks & Humber Feb-26 £ 240,000,000 12713788 View project
72 Bromley-By-Bow Gasworks Redevelopment, Phase 1 Residential London May-25 £ 232,747,990 12683136 View project
73 Brickmakers Yard, Great Marlborough Street - Luxury Shiva Hotel Hotel & Catering London Feb-26 £ 230,000,000 11888858 View project
74 Netherfields Lane, Sawley - Commercial Development Industrial East Midlands Dec-25 £ 230,000,000 12492681 View project
75 Strode Farm - Phase C & D - 296 Houses & Flats Residential South East Dec-25 £ 230,000,000 12811952 View project
76 Thames Cable Tunnel, Tilbury to Gravesend Utilities South East Apr-25 £ 230,000,000 12758676 View project
77 Garvary Wind Farm Utilities Scotland Dec-25 £ 222,000,000 12565372 View project
78 One Museum Street - Mixed Development Civic & Public London Oct-25 £ 220,000,000 12579507 View project
79 New Bermondsey - Phase 1 Residential London Jan-26 £ 217,900,000 11890724 View project
80 Fulwell Cain Studios, Phase 1, Site A - Sound Stages Utilities North East Jan-26 £ 215,000,000 12750686 View project
81 Hareness Road - Aberdeen Hydrogen Hub Facility & 8MW Solar Array Utilities Scotland Jun-25 £ 215,000,000 12625940 View project
82 New Town, Victoria North - Redbank - 1551 Apartments Residential North West Jan-26 £ 210,000,000 12708476 View project
83 Edinburgh Park, Southern Phase - Mixed Development Residential Scotland Oct-25 £ 208,975,000 12507934 View project
84 Bishopsgate Goodsyard Redevelopment - Site 1 Commercial & Retail London Dec-25 £ 205,014,000 12096991 View project
85 Carrington BESS - 680MW Battery Storage Utilities North West Oct-25 £ 204,000,000 12692382 View project
86 65 Gresham Street - Redevelopment Commercial & Retail London Jul-25 £ 200,000,000 12666768 View project
87 Broad Street Mall - 644 Flats Residential South East Dec-25 £ 200,000,000 12423978 View project
88 Energy Isles - 126MW Wind Farm to Sellafirth Utilities Scotland Jan-26 £ 200,000,000 12329494 View project
89 Follingsby Park, Phase 2, Plot A - Distribution Unit Industrial North East Nov-25 £ 200,000,000 12486310 View project
90 Great Wolf Lodge Resort Leisure South East Jan-26 £ 200,000,000 12476906 View project
91 Hub by Premier Inn, 5 Strand - 693 Bed Hotel Hotel & Catering London Dec-25 £ 200,000,000 12249798 View project
92 Hunterston Grid Services Complex - 400MW Energy Storage Facility Utilities Scotland Dec-25 £ 200,000,000 12616666 View project
93 Kincardine Grid Services Complex - 400MW Energy Storage Facility Utilities Scotland Feb-26 £ 200,000,000 12616661 View project
94 LCY20 - Data Centre Commercial & Retail South East Jan-26 £ 200,000,000 12677325 View project
95 Medway One - Energy Hub Utilities South East Oct-25 £ 200,000,000 12774411 View project
96 Paddington Triangle - Over Station Development Commercial & Retail London Feb-26 £ 200,000,000 11966136 View project
97 Pall Mall, Bixteth Street - 280 Bed Hotel Hotel & Catering North West Dec-25 £ 200,000,000 12491491 View project
98 Stone Yard, Deritend - 928 Apartments & Commercial Space Residential West Midlands May-25 £ 200,000,000 12464045 View project
99 The Old Soapworks Redevelopment Residential South West Sep-25 £ 200,000,000 12498818 View project
100 UKAEA - Fusion Demonstration Plant Industrial South East Jan-26 £ 200,000,000 12635418 View project

(Source: Barbour ABI, updated October 2025)

League Tables from Barbour ABI

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 as well as major regions and cities.

Tender League Tables

View the latest and hottest projects out to tender in the UK. Filter by value, location, number of bidders, start dates, and link straight to the Barbour ABI project leads platform to see the project in full detail. The Tender League Tables are separated by sector to give you the most insights on construction activity in your field.

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.

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The Barbour ABI content team is a part of the Marketing department and they strive to produce engaging, relevant content to keep you up to date with the latest construction industry insight.

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