The BSR's 12-Week Target: What It Means for Remediation Projects and New Builds

The Building Safety Regulator has announced a target to reduce remediation application decision times to under 12 weeks by December 2026. The current median stands at 36 weeks — against a statutory target of 8 weeks. The gap between where the BSR is and where it needs to be is substantial, and the measures it is proposing to close it deserve serious examination.

But there is a dimension to this story that deserves equal attention. The BSR has explicitly acknowledged that incomplete and incorrect applications are a significant contributing cause of the delays it is trying to reduce. The regulator is prepared to address its own end of the problem. The question is whether applicants will address theirs.

The Scale of the Current Problem

With 299 live remediation cases awaiting decision as of the end of March 2026, and a median processing time of 36 weeks, the arithmetic is stark. Residents in approximately 26,000 homes are living in buildings with identified safety issues while applications work their way through a system that is running at more than four times its statutory target time.

The statutory 8-week target has never been consistently met for remediation cases. The 12-week ambition being set for December 2026 is an acknowledgement that 8 weeks is not currently achievable, and a commitment to at least get within striking distance of it. That framing matters — the BSR is being honest about its constraints rather than restating an unachievable aspiration.

For comparison, the BSR's innovation unit for new build higher-risk buildings has reduced its median decision time from 51.5 weeks to 22 weeks — a significant improvement achieved through dedicated resourcing and process change. The remediation team is following a similar model, and the early trajectory on new builds suggests it can work.

What the BSR Is Proposing

The measures being put in place include a dedicated multi-disciplinary taskforce focused exclusively on remediation applications, additional staffing, and a proposed flexible approvals mechanism that would allow remediation work to start while residual technical issues are being resolved. Online tracking for applicants is also under development.

The flexible approvals approach is particularly significant. Under the current system, an unresolved technical query on any aspect of a submission can hold up approval for the entire project. A mechanism that allows work to commence on the elements that have been approved, while outstanding queries are addressed, could meaningfully reduce the real-world delay experienced on site — even if the formal decision clock continues to run.

Reducing regulatory lead caseloads from around 25 to 10 per officer is another measure with direct implications for quality of assessment. The concentration of complex cases on individual officers has been one of the structural causes of delay. Smaller caseloads mean more time per application and faster identification of deficiencies.

The Applicant's Share of the Delay

The BSR's acknowledgement that incomplete and incorrect applications are a material cause of delay is important and should not be glossed over. When an application is incomplete at submission — missing documents, inconsistent information, unsupported compliance statements — the BSR issues a requisition. That requisition pauses the statutory clock and opens an exchange that can run for weeks or months.

The BSR cannot resolve an incomplete application without the applicant's input. No amount of additional staffing or process innovation at the regulator's end will shorten the period spent waiting for applicants to respond to requisitions, or prevent those requisitions arising in the first place. The regulator is improving its throughput capacity. But throughput capacity only converts to faster decisions if the material coming through the system is of sufficient quality to be decided.

This is not a criticism levelled at applicants in bad faith. Remediation applications are genuinely complex. They often involve buildings with incomplete records, multiple ownership interests, contested liability questions, and fire engineering strategies that need to address legacy conditions rather than a clean-sheet design. Getting these submissions right requires skill, time and resource.

But the cost of getting it wrong — measured in requisition cycles, extended decision times, and residents living in unsafe buildings for longer — is too high to treat quality of submission as a secondary concern.

What "Complete" Means for a Remediation Application

A complete remediation application is one that allows the BSR to make a decision without needing to ask questions. That means:

• A fire safety strategy that addresses the existing building condition, not just the proposed remediation. The assessor needs to understand the current risk in order to assess whether the proposed works will adequately address it.
• Compliance statements that are specific to the remediation scope. If the remediation involves replacing cladding systems, the compliance statement for Part B must address the new system in the context of the building's geometry, height, occupancy and means of escape — not simply assert that the replacement material meets the standard.
• Structural engineering input where the works affect the building envelope or structure. Cladding replacement often has structural implications. These must be addressed in the submission, with evidence that a competent structural engineer has reviewed them.
• Clear identification of duty holders and their competence. Remediation projects frequently involve contractors and designers who are new to higher-risk building work. The BSR's scrutiny of competence evidence is no less rigorous for remediation applications than for new builds.
• A realistic programme and Construction Control Plan. The CCP must reflect the specific conditions of a remediation project — including phasing, tenant management, and the particular risks associated with working on occupied residential buildings.

What This Means For Your Project

If you have a remediation application in preparation or in the queue, the BSR's announced measures change the context but not the fundamental requirement. The regulator is working to reduce its end of the delay. The applicant's obligation is to ensure the submission does not add to it.

Practically, this means:

• Commission a pre-submission review before lodging any remediation application. The cost of an independent check is trivial relative to the cost of a 36-week decision cycle extended by an unnecessary requisition.
• Engage fire engineers, structural engineers and compliance specialists early in the remediation design process — not at submission stage.
• Treat the MOR plan and CCP as substantive documents written for the specific project, not administrative templates.
• If your application is already in the queue and you receive a requisition, respond to it completely. A partial response will generate a further requisition and extend the delay by weeks.

The BSR is taking responsibility for the systemic causes of delay within its control. The 12-week target is ambitious but not unrealistic if the measures being proposed are properly resourced. What it requires from applicants is a corresponding commitment to submission quality. Both sides of this equation have to improve together.