BLOGS

A turning point for building safety remediation

Almost nine years after the Grenfell Tower tragedy, the Building Safety Regulator (BSR) has entered what may prove to be the most consequential phase of its existence. In January 2026, the regulator became a standalone body—separating from the Health and Safety Executive to operate as an arm's-length regulator under the Ministry of Housing, Communities and Local Government. This structural shift, a direct recommendation of the Grenfell Tower Inquiry, has been accompanied by a suite of operational reforms designed to accelerate remediation approvals and reduce the backlogs that have frustrated developers and leaseholders alike.

The numbers tell a story of genuine progress. In the 12 weeks to late March 2026, the BSR made 284 Gateway 2 decisions with an overall approval rate of 67%—a marked improvement from the 51.5-week median decision times recorded in July 2025. Legacy new-build cases have been whittled down to just two, and the regulator has cleared over 250% more decisions compared to early 2025.

Yet remediation of existing buildings—the category most directly affecting leaseholders living in properties with unsafe cladding—has remained stubbornly difficult to accelerate. That is now changing.

The Remediation Improvement Plan explained

At the heart of the BSR's new strategy is a dedicated Remediation Multi-Disciplinary Team (MDT), modelled on the Innovation Unit that has successfully accelerated new-build approvals. This team brings together specialist expertise under named account managers, improving communication with applicants and providing clearer guidance throughout the approval process.

Key measures in the plan include:

• Expanded regulatory capacity: A recruitment drive aims to reduce individual caseloads from around 25 to approximately 10 cases per regulatory lead

• 'Approval with Requirements': Projects demonstrating substantive compliance can now progress while minor technical issues are finalised—unlocking schemes that might otherwise face lengthy delays

• Tailored remediation guidance: New published guidance specifically addresses the unique challenges of remediation works, such as sequencing fire safety upgrades in occupied buildings and coordinating with leaseholders

The regulator has set ambitious targets: reduce average remediation decision times to under 12 weeks by December 2026, achieve approval rates exceeding 65%, and resolve the majority of outstanding 2024 remediation applications by 30 April 2026.

What this means for developers

For developers working on high-rise residential buildings in England, the BSR's operational reset offers both relief and a clear call to action.

REalyse data shows substantial development pipeline activity across areas most affected by the high-rise building safety regime. Central London boroughs such as Tower Hamlets, Greenwich, and Newham collectively account for over 79,000 proposed residential units in schemes of 50 or more homes—many of which will require BSR Gateway 2 approval. With London representing approximately 62% of all Gateway 2 decisions, the capital remains the primary testing ground for the new streamlined processes.

The BSR's 'batching pilot'—grouping applications for assessment by specialist external suppliers while retaining regulatory oversight—has shown early promise, with initial assessments delivered in a median time of four weeks. Developers can expect more consistent feedback and faster turnaround, provided applications meet quality thresholds.

However, the regulator has been clear about common causes of rejection and delay:

• Lack of fire performance evidence for cladding systems

• Missing structural calculations

• Inadequate detail on cavity ventilation

• Incomplete thermal performance data

• Poorly organised documentation and unsupported compliance claims

Developers submitting higher-quality applications can expect to benefit most from the new efficiency measures. Those who continue to submit incomplete or non-compliant documentation will find themselves at the back of an increasingly prioritised queue.

Relief for leaseholders—but challenges remain

For the estimated hundreds of thousands of leaseholders living in buildings with unsafe cladding, the BSR's remediation push offers cautious grounds for optimism.

As of early 2026, remediation has been completed on approximately 36% of the 4,191 residential buildings over 11 metres identified with fire safety defects in England. A further 16% have works underway. For buildings 18 metres and above—the highest-risk category—46% of the 2,355 identified structures have completed remediation.

The BSR's remediation caseload currently stands at 279 live applications representing over 24,000 units. While the regulator aims to reduce this to a steady state of 80–100 cases by September 2026, the complexity of many schemes—particularly those involving occupied buildings, multiple funding streams, and coordination with freeholders—means some delays will persist.

The introduction of the Building Safety Levy in October 2026 will add a new funding mechanism to support remediation works, while the forthcoming Remediation Bill requires landlords of buildings over 18 metres to complete remediation by the end of 2029. These policy backstops create real deadlines, but also underscore the pressure on all parties to accelerate progress.

Outlook: a system finding its stride

The BSR's transformation from an overstretched new regulator to a standalone body with dedicated remediation capacity represents a genuine inflection point for building safety in England. The combination of operational reforms, recruitment drives, and targeted guidance should help clear the most intractable legacy cases while establishing more predictable pathways for new applications.

For developers, the message is clear: invest in application quality, engage early with the BSR's account management system, and expect faster outcomes as the system matures. For leaseholders, the pace of remediation is finally showing signs of acceleration—though vigilance will be needed to ensure the momentum is sustained.

The post-Grenfell reforms were always designed to be transformational. Nearly a decade on, the building safety regime is beginning to function as intended—balancing rigorous safety standards with the practical need to remediate existing buildings and deliver new, safe homes at scale.