Waiting for you
3drafts need your yesTrades · built for New Zealand
assembl OS for trades.
For builders and trades in Aotearoa: quotes from your own rates with GST done properly, residential disclosure, Construction Contracts Act payment claims on the right day, records of work and site safety. Every draft waits for your tap.
The shell
Try it on the Example. Nothing here is real.
This is trades OS running on Totara Ridge Builders, a fictional business. Move between the tabs with the arrow keys, and approve a draft to see what changes. Nothing is sent.
assembl OS for trades
Experimental · the working tools run on your own numbers; the public version shows an Example builder
ExampleTotara Ridge Builders · Fictional, Hamilton. A residential builder with two crews doing renovations, decks and small extensions. Every record here is simulated: no real business, people or data.
Today
SimulatedWhat needs you today: drafts awaiting approval, dates coming up and what the team did overnight.
In draft
2being prepared by the teamSpecialists
3Kaupapa · Ārai · RecordsOfficial sources
28last checked 2026-11-08The business, as the team sees it
Totara Ridge Builders
- KaupapaProjects, quotes and payment claims
- ĀraiSite safety
- RecordsLicensing and records of work
Agent team · in the Example
Who is doing what.
- KaupapaWaiting for you
Projects, quotes and payment claims · Level 2 · Draft
NowPayment claim 3 for the Example deck and pergola is ready to serve
Reads 5 official sources
Ask Kaupapa
- ĀraiWaiting for you
Site safety · Level 2 · Draft
NowTrench controls need a stronger measure than a phone call
Reads 5 official sources
Ask Ārai
- RecordsDrafting
Licensing and records of work · Level 2 · Draft
NowRecord of work owed for the framing on the Example Ridge Road extension
Reads 7 official sources
Ask Records
Waiting for a person · 3
Drafts for your call.
- Awaiting approvalSimulatedKaupapa
Payment claim 3 for the Example deck and pergola is ready to serve
Drafted from the signed contract and the approved variation, with Form 1 attached. The contract is silent on dates, so payment would be due 20 working days after you serve it.
- Awaiting approvalSimulatedKaupapa
Checklist and disclosure statement for the Example kitchen renovation
The draft quote is over the residential threshold, so these go to the client before they sign. The insurance section needs your policy details.
- DraftSimulatedRecords
Record of work owed for the framing on the Example Ridge Road extension
Framing finished on Friday. It goes to the owner and the council now, whatever the state of the account.
- DraftSimulatedĀrai
Toolbox talk for Monday: roofing on the Example extension
Drafted from the hazard register: edge protection first, harnesses only where it cannot be used. The site lead runs it and the crew signs.
- Awaiting approvalSimulatedĀrai
Trench controls need a stronger measure than a phone call
The drainage trench has only an administrative control. Ārai suggests checking isolation or engineering controls before digging starts.
Trace · every step
What the team just did.
- Read
Kaupapa Construction Contracts Act 2002
- Drafted
Records Record of work owed for the framing on the Example Ridge Road extension
- Read
Records Records of Work
- Waiting
Ārai Trench controls need a stronger measure than a phone call
- Drafted
Ārai Toolbox talk for Monday: roofing on the Example extension
- Read
Ārai Health and Safety at Work (General Risk and Workplace Management) Regulations 2016
- Waiting
Kaupapa Checklist and disclosure statement for the Example kitchen renovation
Built from the Example’s own tasks and the official sources each specialist cites. Simulated timing.
What this OS does
GST and PAYE dates
The next GST, PAYE and provisional tax dates, read from Inland Revenue’s own pages when you open it.
Reading Inland Revenue’s date pages…
Read from: Filing GST (opens in a new tab) (Inland Revenue, checked 8 Nov 2026); Payday filing (opens in a new tab) (Inland Revenue, checked 8 Nov 2026); Payment dates for provisional tax (opens in a new tab) (Inland Revenue, checked 8 Nov 2026)
The pack
What this OS adds for your industry.
Each module shows what it can do today. Proposed means designed, not built.
GST and PAYE dates
The next GST, PAYE and provisional tax dates, read from Inland Revenue’s own pages when you open it.
Your own dates depend on your balance date and filing frequency. Check myIR.
Quote builder
Line items at your own rates, a margin you choose and GST at 15% on the whole, as a draft you check before it goes out.
assembl never fills in a rate. A line without your rate stays unpriced.
Plan to quote
From a house plan to measured quantities you confirm, feeding the quote builder.
Every quantity is confirmed by a person before it is priced.
Residential building disclosure
Tells you when a residential job needs a written contract, the prescribed checklist and the disclosure statement, and keeps the checklist.
Guidance, not legal advice. The threshold was read on building.govt.nz on 8 November 2026; check the page before you rely on it.
Official sources
Payment claims and retentions
Drafts a Construction Contracts Act payment claim with what section 20 requires, and tracks the due date and payment schedule deadline in working days.
Guidance, not legal advice. Attach Form 1 exactly as prescribed. You serve the claim, not the OS.
Public tenders
Open building and maintenance tenders from the Government Electronic Tenders Service, read live, for you to sift.
A list of public notices, not a recommendation to bid.
Records of work and LBP checks
Reminds you which records of work you owe for restricted building work, links the public LBP register, and drafts document reminders for subbies.
This OS never says someone is licensed. Check the register yourself.
Site safety with Ārai
A hazard register that follows the hierarchy of controls, with toolbox talk and safe work method statement drafts from it.
A planning aid, not a safety assessment. It never says a site is safe.
Healthy homes, trades version
For heating, insulation, ventilation, moisture and draught work on rentals: the free check, in its trades version, and the official standards.
Official sources
People
Employment agreement drafts, leave questions and process steps with Aroha, each citing the official page it used.
Information and drafts, not legal advice. Provided by the People module (lib/people/module.ts).
The Workforce
Specialist agents, grounded in official sources.
Workforce is the agent team inside the OS. Each specialist reads official New Zealand pages live, cites the source and date for every claim and fact-checks its own draft. Drafts are not legal advice.
Kaupapa Projects, quotes and payment claims
Turns your rates into a draft quote, flags residential disclosure, and drafts payment claims with the right dates. Reads the Act and the regulations live.
Ārai Site safety
Keeps the hazard register in the order the regulations set, and drafts toolbox talks and method statements for the crew to sign.
Official sources
- Health and Safety at Work (General Risk and Workplace Management) Regulations 2016 (opens in a new tab)
- General risk and workplace management (part 2) (opens in a new tab)
- Notify WorkSafe (opens in a new tab)
- Health and Safety at Work Act 2015 (opens in a new tab)
- WorkSafe New Zealand (opens in a new tab)
Records Licensing and records of work
Tracks the records of work you owe, points you to the public registers, and explains where plumbing, gas and electrical work have their own rules.
Official sources
- Records of Work (opens in a new tab)
- Licensed Building Practitioners (opens in a new tab)
- Building Act 2004 (opens in a new tab)
- Building and Construction (Small Stand-alone Dwellings) Amendment Act 2025 (opens in a new tab)
- Plumbers, Gasfitters, and Drainlayers Act 2006 (opens in a new tab)
- Electricity (Safety) Regulations 2010 (opens in a new tab)
- Gas installations: certification (opens in a new tab)
Official New Zealand sources this OS cites
- Construction Contracts Act 2002 (opens in a new tab)
- Construction Contracts Regulations 2003 (opens in a new tab)
- Building (Residential Consumer Rights and Remedies) Regulations 2014 (opens in a new tab)
- Building Act 2004 (opens in a new tab)
- Licensed Building Practitioners (opens in a new tab)
- Records of Work (opens in a new tab)
- Building and Construction (Small Stand-alone Dwellings) Amendment Act 2025 (opens in a new tab)
- Plumbers, Gasfitters, and Drainlayers Act 2006 (opens in a new tab)
- Electricity (Safety) Regulations 2010 (opens in a new tab)
- Gas installations: certification (opens in a new tab)
- Health and Safety at Work Act 2015 (opens in a new tab)
- Health and Safety at Work (General Risk and Workplace Management) Regulations 2016 (opens in a new tab)
- General risk and workplace management (part 2) (opens in a new tab)
- Notify WorkSafe (opens in a new tab)
- WorkSafe New Zealand (opens in a new tab)
- Charging GST (opens in a new tab)
Free tools that feed it
Price
What it would cost when it opens.
Workforce plan
NZ$20 a month
Modules for this OS
Industry packs
+NZ$20 a month
Extra skills and sources for one industry. Architecture first: a consent pre-check by Building Code clause.
Proposed
Trades plan-to-quote
Coming later
From a house plan to a takeoff and a draft quote, with a person checking every number.
Proposed
NZ compliance skills
+NZ$10 a month
Flags what to check in your drafts against the Privacy Act 2020, the Consumer Guarantees Act, food control plans and the Building Act and LBP rules.
Draft · guidance, not legal advice
HR (Aroha)
+NZ$10 a month
Drafts employment agreements, leave answers and process steps under New Zealand employment law, for your review.
Draft
New Zealand dollars, including GST. This plan is on a waitlist only: nothing monthly can be bought yet. Any 3 modules: pay for 2. The cheapest of every three priced modules you pick is free. (Proposed)
What the labels on this page mean
- Example
- A fictional business. No real client data.
- Simulated
- The screen works on fictional data only.
- Draft
- Written by an agent for a person to check. Not advice.