Hit rock where the report said sand? Describe the conditions in plain English and ChatNotice drafts a clause-compliant Sub-Clause 4.12 notice in minutes.
Generate a 4.12 noticeTell ChatNotice what the ground gave you, in your own words — “we hit hard rock at 3 metres where the geotechnical report showed sand.”
It asks only what the notice needs — when the condition was encountered, where on the Site, and how it differs from the tender information.
ChatNotice drafts a formal notice that describes the condition, anchors the encounter date, and reserves time and cost — ready to review and send.
“Unexpected” is not the standard — “not reasonably foreseeable by an experienced contractor” is. The notice describes the condition against what the tender information showed.
Sub-Clause 4.12 carries an extension of time and Cost — but not profit. The notice claims exactly that, because overreaching on one limb invites scrutiny of both.
The clock runs from when the condition was encountered. The notice fixes that date and prompts the records that matter — photographs and measurements before the condition is covered up.
It is an online tool that drafts your Sub-Clause 4.12 notice for you. Instead of starting from a blank template, you describe the physical conditions you encountered in plain English; ChatNotice asks a couple of follow-up questions, cites Sub-Clause 4.12 and the claims clause, and produces a formally worded notice with the encounter date fixed — ready to review and send.
Physical conditions — natural or man-made obstructions, sub-surface or hydrological conditions, but not weather — that an experienced contractor could not reasonably have foreseen when the tender was prepared. The comparison point is the tender information: a boulder field where the borehole logs showed uniform sand is a claim; harder digging than you hoped for is not.
Most notices take two to three minutes — describe the condition, answer a couple of questions, get the draft. ChatNotice is free to use during the beta. Sign up with a work email; no credit card required.