BLOGS

Introduction

When the government published its revised National Planning Policy Framework (NPPF) in December 2024, the reforms promised to unlock residential development by streamlining the planning process and removing barriers to housebuilding. Eighteen months on, the picture is mixed. REalyse planning data shows that decision times have indeed shortened significantly, yet approval rates have softened and—most critically—the gap between gaining planning permission and breaking ground continues to widen.

For investors, developers, and lenders tracking the UK residential pipeline, understanding this disconnect is essential for forecasting supply, pricing risk, and identifying genuine opportunity amidst the noise.

Faster decisions, shifting approval rates

The NPPF reforms appear to have delivered on their core promise of quicker planning outcomes. In Q4 2024, residential applications in England took an average of 134 days to reach a decision. By Q1 2026, that figure had fallen to just 51 days—a reduction of more than 60%.

Wales followed a similar trajectory, with average decision times dropping from 145 days to around 53 days over the same period. This acceleration reflects a combination of enhanced permitted development rights, simplified local plan processes, and clearer policy guidance that has reduced back-and-forth between applicants and local planning authorities.

However, approval rates tell a more complex story. England's residential approval rate peaked at 71% in Q2 2025 before declining to 54% by Q1 2026. This suggests that while decisions are coming faster, local authorities may be taking a harder line on schemes that don't meet updated design codes, environmental standards, or local housing need criteria embedded in the revised framework.

REalyse data shows the pipeline remains substantial, with over 100,000 residential units tied to applications submitted in Q1 2026 alone across England. The challenge is converting these permissions into actual homes.

The construction lag problem

Perhaps the most significant finding from current pipeline analysis is the persistent lag between planning permission and construction commencement. Across large residential schemes, the average time from approval to breaking ground now stands at approximately 329 days—nearly 11 months. For mega-scale developments, this stretches even further, with private housing schemes averaging 649 days and outline permissions for major sites taking up to three years to translate into on-site activity.

This lag exists for several reasons:

• Viability pressures: Elevated construction costs, fluctuating material prices, and higher financing rates have made some permitted schemes economically challenging to commence immediately.

• Infrastructure dependencies: Larger schemes often require Section 106 agreements, utilities connections, and highways works to be resolved before construction can begin.

• Market timing: Developers may hold permissions strategically, waiting for more favourable sales conditions or rental market improvements before committing capital.

The consequence is a growing bank of "shovel-ready" sites that remain inactive despite holding valid permissions. For housing supply projections, this means that today's approval figures will not translate into completions for another two to four years in many cases.

Regional variations and sector differences

The planning data reveals notable variations by scheme type and location. Private housing schemes (both houses and flats) dominate the pipeline, with over 270,000 units holding permission across large and mega-scale projects. Student accommodation has also seen strong approval activity, with over 43,000 units in the pipeline—reflecting continued institutional appetite for purpose-built student housing despite broader market caution.

Public and affordable housing approvals present a more constrained picture. Schemes classified as social or public housing account for a smaller share of pipeline units, and face similar or longer construction lags than their private counterparts. This raises questions about whether the planning reforms are adequately supporting the affordable housing delivery that underpins many local authority housing strategies.

Build-to-rent (BTR) schemes, categorised under PRS housing in the data, show over 8,300 units with permission across large developments. The sector continues to attract institutional capital, though the lag between permission and construction (averaging over 400 days for BTR flats) suggests developers are proceeding cautiously given evolving rental regulation and yield expectations.

Outlook: permissions without progress

The late 2024 NPPF reforms have achieved their primary goal of accelerating the planning system. Applicants are receiving decisions in weeks rather than months, and the overall pipeline of permitted residential units remains robust across England and Wales.

Yet faster approvals alone cannot solve the housing supply challenge. The data points to a structural gap between planning success and construction delivery—one driven by economic conditions, infrastructure constraints, and developer caution in uncertain markets.

For those monitoring the residential market, the key metric to watch is not approval rates but construction starts. Until the lag between permission and groundbreaking begins to narrow, housing delivery will continue to trail behind both policy ambitions and market demand.

REalyse continues to track planning applications, construction activity, and pipeline data across the UK, enabling investors and developers to identify where genuine delivery is occurring versus where permissions remain dormant.