Twelve Weeks, Says the Law

Between those two numbers sits most of what developers currently believe about the Building Safety Regulator, and almost none of what its own data says.

Start with the data, because the regulator publishes it monthly on a twelve-week rolling window and few people seem to read past the headline. In the twelve weeks to 31 August 2026 the regulator decided 50 applications for new higher-risk buildings and approved 92 per cent of them. The median determination for a new building ran at 22 weeks against the statutory 12, with 147 new-building cases in progress and 1,654 Gateway 2 applications live across new build, remediation and internal works. So the two facts that matter sit side by side in the same spreadsheet: the process is slow, and its approval rate is far higher than it was two years ago.

The slowness is real, and it has its own House of Lords report. In December 2025 the Industry and Regulators Committee found decisions taking in some cases more than nine months against the twelve-week statutory target, and its chair called the scale of the delays unacceptable. But the same report recorded what was driving rejections and delay on the applicant side: basic errors, and applicants' inability to evidence how they are considering elements of fire and structural safety. The two sides of the delay are not symmetrical. One is structural and slow to fix. The other is a preparation choice, available immediately, to anyone.

Read the two findings together and the practical position is clearer than the discourse around it. The regulator's speed is outside any applicant's control. The quality and completeness of a submission are substantially inside it. Be precise about what the published record does and does not show: it does not prove that preparation causes approval, because no such comparison has been published. It shows a high and rising approval rate alongside a consistent account of what drives rejection and delay, which is basic errors and an inability to evidence. A Gateway 2 submission is not a form; it is the residue of everything done before it, design resolved, interfaces closed, reasoning recorded. Applications that arrive with that behind them are better positioned than applications that arrive hoping to resolve design during determination.

The queue is long. The bar, on the evidence, is not mysterious.

Gateway 2 is one instrument in a regulatory movement that has been running in a straight line for eight years. The Building Safety Act assigned statutory duties to named dutyholders for planning, managing and monitoring design and construction. The golden thread made the keeping of design intent and its evidence a legal obligation for the life of a building. The Grenfell Inquiry's final report found the regulatory arrangements too complex and fragmented; government accepted all fifty-eight recommendations, forty-nine in full. On 27 January 2026 the regulator became an executive non-departmental public body sponsored by MHCLG, and in July 2026 government confirmed it will proceed towards a single construction regulator, with legislation timetabled. The competence frameworks under BS 8670 attach capability requirements to the named roles the Act created. PAS 8700 specifies process for manufacturing-led residential delivery. Different instruments, one direction: accountability attached to names, decisions gated by sequence, reasoning kept on the record.

Described that way, the regime stops looking like a burden and starts looking like a description. A well-run project always sequenced its decisions, closed its interfaces and kept its reasoning; the law has been converging, instrument by instrument, on how good projects already behave. A developer who works that way is not exposed to this regime. The regime describes them. And none of it depends on a building being tall enough to qualify: the statute decides where the disciplines are compulsory, not where they are worth having.

There is also a compounding return in this that the cost conversation misses. The evidence a gateway demands is not single-use. The recorded reasoning that clears Gateway 2 is the same record a funder's due diligence asks to see, the record an insurer prices against, and the record that answers a claim if one ever lands. A project that keeps its reasoning pays for the discipline once and collects on it for the life of the building. A project that reconstructs its reasoning under pressure pays every time, at the worst possible moments, at distress rates.

The sharpest recent example is about dates. The Future Homes and Buildings Standards, laid on 24 March 2026, commence on 24 March 2027, and on 24 September 2027 for higher-risk building work. The transition has two limbs, and the higher-risk one is not the same as the other. Outside the higher-risk regime, relying on the previous standards requires a building notice, initial notice or full plans application given before 24 March 2027 and work commenced before 24 March 2028, tested building by building. Inside it, the mechanism is a valid Gateway 2 application submitted before 24 September 2027. Which energy regulations a home answers to is now determined by when its decisions land. Timing has become a regulated variable, and sequencing has stopped being a professional preference and become the thing the statute runs on.