Southeast UK Construction Market Mid-2026 Report: Project Starts and Contract Awards Show Divergence

Introduction

As a key economic engine surrounding London, the construction activity trends in Southeast England serve as an indicator for national infrastructure development and regional economic growth. According to the latest data released by Glenigan for May 2026, the region's construction market shows significant divergence: project starts and main contract awards rebounded sharply within the quarter, but year-on-year performance was mixed; detailed planning approvals experienced a steep decline, signaling a potential slowdown in the pace of future construction.

Project Background

This analysis covers the three-month period ending May 2026 (i.e., March to May 2026), with data sourced from Glenigan's real-time project tracking system. It focuses on three core indicators: Project Starts, Main Contract Awards, and Detailed Planning Approvals. The Southeast region includes counties such as Berkshire, Buckinghamshire, East Sussex, Hampshire, Kent, Oxfordshire, Surrey, and West Sussex, and is one of the most active construction markets in the UK outside of London.

Key Developments

Project Starts: Doubled Quarter-on-Quarter, Halved Year-on-Year

Total project starts reached £2.436 billion, a 101% increase quarter-on-quarter but a 51% decline compared to the same period last year. Excluding major projects (valued below £100 million), starts rose 45% quarter-on-quarter. Although major projects recovered from the previous quarter (which had no activity), they remained significantly below last year's levels.

Private housing was the largest segment for project starts, accounting for £697 million (29% of the total), down 39% year-on-year. The office sector followed with £387 million (16% share), up 9% year-on-year. The health sector performed strongly, reaching £258 million, a 60% year-on-year increase. The education sector stood at £249 million (10% share), up 14% year-on-year. The infrastructure sector recorded only £222 million, plunging 90% year-on-year.

Main Contract Awards: Strong Growth Both Quarter-on-Quarter and Year-on-Year

Total main contract awards reached £7.37 billion, a 115% increase quarter-on-quarter and 43% rise year-on-year. Excluding major projects, underlying contract awards fell 23% quarter-on-quarter, but a substantial increase in awards for major projects drove the overall uptick. This indicates that large infrastructure or industrial projects have entered the contracting phase.

Detailed Planning Approvals: Overall Decline, Office Approvals Surge

Total detailed planning approvals reached £3.748 billion, up 8% quarter-on-quarter but down 84% year-on-year. Excluding major projects, approvals fell 35% quarter-on-quarter, while approvals for major projects grew 54% quarter-on-quarter but still plummeted 92% year-on-year.The office sector accounted for 35% of total approvals, reaching £1.298 billion, a year-on-year increase of 550%, reflecting strong market confidence in future office space demand. The health sector stood at £261 million (7% share), up 69% year-on-year. Private housing approvals were £1.055 billion (28% share), down 25% year-on-year. The utilities sector was only £323 million, down 97% year-on-year, with a sharp contraction in energy-related project approvals.

Industry Impact

The data reveals a structural shift in the construction market of Southeast England. Private housing starts remain weak, affected by high interest rates and slowing demand; meanwhile, expansion in the office and health sectors reflects post-pandemic space reorganisation and prioritisation of healthcare investment. The rebound in major contract awards indicates that large-scale projects (such as transport hubs, data centres, or energy facilities) are progressing, but the sharp decline in planning approvals may create a gap in project starts in the next 6–12 months.

The slump in the utilities sector is noteworthy, possibly linked to delays in approvals for grid upgrades and water engineering projects. Industrial sector starts fell 31% year-on-year, while approvals grew 28%, indicating that manufacturing investment has not yet materialised on a large scale.

Challenges and Risks

1. Planning bottlenecks: Despite a surge in office approvals, total approvals fell 84% year-on-year, with infrastructure approvals in particular at just £10 million, almost depleted. Inefficiencies in the planning system may constrain long-term supply. 2. Labour and material costs: The UK construction industry still faces a shortage of skilled workers and material price volatility, with intense competition in the Southeast. 3. Financing costs: In a high-interest-rate environment, the feasibility of private housing and commercial development projects is under pressure. 4. Macroeconomic uncertainty: The UK's economic recovery is slow, and government infrastructure budgets may face scrutiny.

Future Outlook

Glenigan's forecasting model shows that from the second half of 2026 to 2027, the start of basic projects (under £100 million) in the Southeast will gradually recover. In Q3 2026, starts are expected to be £2.555 billion (up 11% quarter-on-quarter), and in Q4 2026, £2.179 billion (up 12% year-on-year). Q1 2027 may see a sharp jump of 83% to £3.044 billion, but this has not yet accounted for the lagged effect of the recent planning approval slump.

The strong performance of office building approvals may translate into new project starts over the next 2–3 years, especially in the Reading–Oxford corridor, where technology and financial services firms are concentrated. The health sector continues to grow, with NHS capital expenditure plans driving hospital and primary care facility construction.

ConclusionThe construction market in Southeast England is experiencing a mix of short-term peaks and long-term concerns. The quarterly improvement in project starts and contract awards has provided some respite for the industry, but the sharp decline in planning approvals and weakness in private housing indicate uneven growth momentum going forward. The sustainability of regional economic growth will depend on accelerating infrastructure investment, reforming the planning system, and restoring private sector confidence. Against the backdrop of the global engineering and construction industry's shift toward sustainability and digitalization, whether the Southeast can seize opportunities in low-carbon and smart cities will be key to its long-term competitiveness.