CP12
CP12: the gas safety record that never lapses
A landlord gas safety record is one page a year per property. Across a portfolio it is dozens of twelve-month clocks, and the clock is what lapses — so Moby keeps it on the property, blocks a tenancy while it is missing, and lets the engineer issue it from the job.
What a CP12 is
A landlord gas safety record — still called a CP12 after the old form number — is what a Gas Safe registered engineer leaves after checking every gas appliance and flue the landlord provides. The Gas Safety (Installation and Use) Regulations 1998 require the check every twelve months, a copy to existing tenants within 28 days, a copy to new tenants before they move in, and the last two years of records kept.
None of that is complicated. What goes wrong is the calendar: dozens of properties, each on its own twelve-month clock, the dates in a spreadsheet nobody owns and the certificates in a shared drive nobody trusts.
The certificate is easy. The calendar across a portfolio is what lapses.
On the property, with a date
In Moby the gas safety check is a requirement in the UK compliance pack. It sits on the property, it carries a twelve-month cadence, and its expiry is set from the last record filed — nobody types a date twice. The compliance dashboard shows every property against it, and the renewal alert fires before the date rather than after it.
The record itself is filed on the property, next to the EICR and the EPC, so the answer to “where is the gas cert for Flat 3?” is the property, not a search.
One clock per property, all of them on one board.
A tenancy cannot go live without it
The gas check is a blocking requirement. With lease and tenancy management on, a tenancy on a property with no in-date record cannot be activated. The reminder comes first; the block is what happens if the reminder is ignored.
That is a rule the software enforces at the moment it matters — the day the keys are handed over — not a reminder somebody has to remember to act on.
A block is a reminder with consequences.
Issued from the job, not typed afterwards
Gas Safe registered engineers on Moby issue the record from the job. The certificate template is defined once, filled in on the visit, and filed against the property with its issue and expiry dates already set. The agency or landlord who booked the visit sees it land.
Moby tracks, reminds, blocks and files. It does not carry out the check and it is not the Gas Safe Register: the engineer’s registration and judgement are the engineer’s.
The engineer signs it. The property keeps it.
Who this is for
Lettings and property management teams with more gas clocks than one person can hold in their head. Self-managing landlords who would rather be told than remember. Gas engineers who want the paperwork to come out of the job they just did, filed where the next engineer will look for it.
Bring one property that is due this month to the walkthrough.
Keep reading
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The job
From a report to a paid invoice
How a property repair runs end to end in Moby — reported with photos, dispatched to a vetted contractor, tracked on a live clock, and invoiced without re-keying a line.
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The money
Where the margin was hiding
Supplier bills read into priced lines, a rate card that prices its own jobs, memberships that show their working, and rent that remits itself — the money surfaces in Moby.
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The property
The record that outlives every job on it
Home health scores, certificates issued from the job that earned them, compliance that can block a letting, and listings that become signed tenancies — the property record in Moby.
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The trade
The half most platforms treat as an afterthought
Vetting filed once and approved per client, a calendar that counts people, works orders that become jobs, and van stock counted per location — the contractor half of Moby.
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Ops vs CRM
Your CRM fills the diary. Moby runs the property.
CRMs hold the address book. Moby runs the work — tickets, tenancies, compliance and invoices. Keep your CRM and close the ops gap: where one stops and the other starts.
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EICR
EICR: five-year electrical safety, tracked like the gas check
What an Electrical Installation Condition Report is, the five-year rule for private lets in England, and how Moby tracks it on the property, blocks a tenancy while it is missing, and files the report the electrician issues from the job.
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Landlords
Landlords: the rent, the certificates and the repairs on one record
For self-managing landlords and small portfolios: tenancies, a rent ledger with arrears, the UK compliance pack and repairs on one property record, with a dashboard that shows occupancy, rent roll, arrears and deposits held.
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Home Health Score
Home Health Score: a property’s condition as one number
A 0–100 score from a checklist assessment, banded Excellent, Good or Needs Attention, with a plan of what to do about it and a passport that keeps the record — what the Home Health Score is and what it is not.