What the law requires
England’s HRB regime runs from classification (SI 2023/275) through Gateways 1–3 and works-phase golden thread (SI 2023/909), into occupied Part 4 duties — safety case and MOR (SI 2023/907), registration changes (SI 2023/315), KBI (SI 2023/396), and keep/provide information (BSA s.88–s.90 / SI 2024/41). This page is the operating checklist; the full narrative sits in the educational guides.
Key clocks
Registration changes
Notify material changes within 14 relevant days of awareness (SI 2023/315 reg.4).
KBI submit / change
Commonly 28 days under SI 2023/396 regs 20–22 — file on the BSR portal.
MOR full report
Notice ASAP; report within 10 calendar days of the AP’s attention (BSA s.87 / SI 2023/907 reg.6).
BAC after direction
Apply within 28 calendar days of BSR direction (GOV.UK guidance).
Building Safety Levy
In force for relevant applications on/after 1 Oct 2026 (SI 2025/1236) — evidence only, not a calculator.
Primary sources
Operating checklist
Use this checklist for England higher-risk buildings (HRBs) under the Building Safety Act 2022. Classification sits in SI 2023/275. Design and construction gateways and works-phase golden thread sit in SI 2023/909. Occupied-phase duties sit mainly in BSA Part 4 plus SI 2023/907, 315, 396 and SI 2024/41. Tick each item when evidence exists and is linked in your golden thread. Filing to the BSR / GOV.UK portal remains a duty-holder act — prepare and evidence here; do not assume software auto-files.
Jurisdiction & project setup
- England HRB regime confirmed in scope (Wales / Scotland HRB regimes out of scope for this checklist)
- Building classified as HRB or non-HRB with documented rationale under SI 2023/275 (height, storeys, use, exclusions) — BSR registration remains authoritative
- Client has appointed a Principal Designer and Principal Contractor in writing (CDM 2015 / SI 2023/911 dutyholder duties)
- Duty-holder roles recorded for design, construction, and (where applicable) occupied phase — AP / PAP / BSM named before occupation
- Competence evidence captured for key appointments (PAS 8671 / 8672 / 8673 matrix where used) — competence remains an appointing-party judgement, not software accreditation
- Change control process defined for design and safety-critical information (SI 2023/909)
- Building Safety Levy awareness logged for applications on/after 1 Oct 2026 (SI 2025/1236) — evidence of liability/payment only; no in-product levy calculator
Gateway 1 (planning) — SI 2023/909
- Fire statement prepared where required for relevant planning applications
- Consultation responses from the Building Safety Regulator (BSR) logged
- Design intent for fire and structural safety documented
- Key assumptions and constraints recorded for downstream gateways
- Gateway correspondence filed against the correct project / building identifiers
Gateway 2 (pre-construction) — SI 2023/909
- Full design intent package assembled for BSR building-control approval
- Fire strategy, structural design, and MEP safety interfaces aligned
- Construction control plan drafted
- Change management procedure agreed before works commence
- Golden thread information requirements defined per asset / system (works phase — SI 2023/909 Part 4)
- Evidence that building work will not commence until BSR approval is in place
- Competence and duty-holder arrangements current for the construction phase
Gateway 3 (completion) & handover — SI 2023/909 + BSA s.76
- As-built information reconciled against design intent
- Fire safety and structural certification complete
- Resident engagement strategy (where HRB) prepared for occupation
- Safety case evidence compiled for handover to the Accountable Person
- Defects and outstanding safety-critical items tracked to closure
- Formal information handover framed for BSA s.76 occupation handover as well as Gateway 3 completion (not Gateway-3-only)
- AP / BSM responsibility-transfer records prepared where roles change at handover (product feature — not BSA s.94; s.94 is the regulator complaints system)
- Outgoing / incoming AP prescribed-information checklist planned under BSA s.90 where a change of AP occurs (SI 2024/41 reg.13 themes — presence attestation ≠ legal adequacy)
Golden thread & information management
- Single source of truth for safety-critical information identified (BSA s.88 keep duties; SI 2024/41 Schedule 1 for occupied prescribed content)
- Version control applied to regulated documents
- Audit trail for uploads, approvals, and changes
- Information linked to building, storey, and system level where practicable
- Access controls reflect duty-holder responsibilities
- Resident provision pathways understood (BSA s.89 / SI 2024/41 Schedules 2 and 3)
Occupied phase — registration, KBI & safety case
- Accountable Person and Principal Accountable Person identified and recorded per HRB
- Building registered with the BSR; material registration changes notified within 14 relevant days of awareness (SI 2023/315 reg.4 — not SI 2023/908)
- Key Building Information (KBI) covered across all 16 SI 2023/396 categories (regs 3–18)
- KBI initial submit / material-change clocks owned (commonly 28 days — SI 2023/396 regs 20–22); filing still on the BSR portal
- Safety case report structured against SI 2023/907 reg.4(1)(a)–(j) risk-management principles with named evidence owners
- Safety case kept current as the building and risk picture change (adequacy = duty-holder judgement)
- Multi-HRB portfolios scoped per building — no mixed evidence across stock
Occupied phase — MOR, BAC, residents & fire adjacency
- Mandatory occurrence reporting system in place under BSA s.87 / SI 2023/907 reg.6 — notice as soon as reasonably practicable; full report within 10 calendar days of the day the occurrence came to the AP’s attention (unless extension granted)
- MOR attention date recorded distinctly from create date where they differ; BSR portal reference captured after manual filing (no auto-file)
- Building Assessment Certificate readiness plan in place — see threadsovereign.co.uk/resources/bac-readiness-checklist
- Resident engagement strategy current (SI 2023/907 reg.10)
- PAP complaints system meets SI 2023/907 reg.12 (ASAP acknowledgement, timely handling, published timeframes, reconsideration) — any 10 UK working-day response window is organisational / platform policy, not a statutory national clock
- Resident information access and document-request paths ready (s.89 / Schedules 2–3); safety-concern channel available (s.91B)
- Distinguish PAP complaints (s.93 + reg.12) from BSR / regulator complaints (s.94)
- FRA lifecycle, FSER fire-door / EEIS / PEEP evidence planned where applicable (SI 2022/547 adjacent to BSA AP duties — FSO Responsible Person)
- Part 5 remediation / qualifying-lease / order registers considered where the building is in scope (registers + calculator support ≠ full leaseholder case system)
- BSR annual returns, compliance notices, and contravention correspondence tracked with owners and deadlines
Contractor & supply chain
- Design changes from contractors routed through change control
- Product substitutions assessed for fire / structural impact and reflected in the golden thread
- Installation records and test certificates collected
- Snagging linked to safety-critical systems until resolved
- Construction products / PCI evidence retained where required for the pack
Assurance before portal filing
- Internal peer review completed on Gateway / BAC / KBI packs
- Gaps flagged with owners and target dates
- Submission readiness review signed off by a competent person
- BSR correspondence filed against each gateway / regulator decision
- Portal-day pack ready (GOV.UK links, checklist status, HSE / BSR reference reminder) — Threadsovereign prepares; duty-holder files
Prefer narrative reading?
Educational guides are the indexed deep-read for this topic. This checklist stays printable and out of commercial search competition.
This checklist supports planning and assurance — not legal advice. Verify against legislation.gov.uk, current BSR / GOV.UK guidance, and your legal advisers. Threadsovereign prepares and evidences BSA workflows; official filings remain on BSR / GOV.UK portals (no auto-file to HSE). Guides: threadsovereign.co.uk/guides · FAQ: threadsovereign.co.uk/faq · Manual: threadsovereign.co.uk/help/manual. Reviewed 26 July 2026 against FINALPASS cite hygiene.
© 2026 Threadsovereign Ltd. Provided for general guidance only — not legal advice.