By the end of this trailYou can explain why British Columbia's programme delivered and Toronto's overran, structure procurement around a standardised typology and a multi-year pipeline, write wage terms that a factory floor can actually meet, set the site-readiness and contract controls an auditor will later look for, and know which of the industry's claims to accept in a vendor's proposal.
  1. Step 01

    Study one success and one overrun side by side

    Vancouver delivered 606 supportive homes in about eighteen months. Toronto's initiative ran 63 percent over budget and five to thirteen months to occupancy. Same method, same building type, same country, opposite outcomes — and the auditor told us why.

    You should now be able to answerWhich three management failures did Toronto's auditor identify, and which of them happened in the factory?
  2. Step 02

    Standardise the typology before you procure

    Modular economics rest on repetition. A programme that lets every site have its own design has bought site-built economics with factory risk. Hong Kong, Singapore and BC standardised first; Canada's Housing Design Catalogue is an attempt to do it nationally.

    DoReduce your programme to the fewest unit types and building configurations that meet the need. Pre-engineer them as modules. Count what you have left.
    You should now be able to answerHow many distinct designs does your programme require, and have they been pre-reviewed as modular by the authorities that will permit them?
  3. Step 03

    Commit to a pipeline, not a project

    The most valuable thing a public buyer can offer this industry is not a grant but a decade of predictable orders for the same thing. Factories invest against backlog; they close on pipeline gaps. Harbinger's Vallejo plant, ninety percent affordable housing, is the 2026 example.

    DoDraft the volume commitment you could defend across an electoral cycle: units per year, for how many years, with what standardised product. If you cannot commit to more than one project, plan for site-built economics.
    You should now be able to answerWhat volume, over what term, are you prepared to publish — and what happens to a factory that tools up for it if the second year's funding is cut?
  4. Step 04

    Write wage terms a factory floor can meet

    Oregon, New York and Pennsylvania tried to extend site-based prevailing wage into factories; the industry sued and lobbied. Neither side asked the question public buyers must answer: on what terms does factory work count as public work? Write those terms into the procurement.

    You should now be able to answerDoes your procurement define a factory wage classification, an area rate, an apprenticeship ratio and a reporting method for a multi-project floor — or does it import a job-site rule and hope?
  5. Step 05

    Set site-readiness and contract controls before the budget is fixed

    The factory keeps its schedule. Programmes lose theirs on site and in change orders approved without review. Budget only after due diligence; track cost in one place; make change control formal. These are the auditor's recommendations, in advance.

    DoWrite the site-readiness gate: what must be complete, verified by whom, before a module order is released. Put it in the contract.
    You should now be able to answerWhat is your site-readiness gate, who signs it, and what happens to the factory order if it is not met?
  6. Step 06

    Read the vendor's proposal with the two evidence bars

    Every proposal will cite '20–50% faster' and 'up to 20% cheaper'. The first is robust; the second is McKinsey's own exception case. Accept schedule certainty as the value; treat cost parity as the target; and price the approvals, transport and financing frictions a site-built bid does not carry.

    You should now be able to answerWhich claims in the proposal are schedule claims, which are cost claims, and what conditions does each depend on that your programme does or does not provide?
  7. Step 07

    Plan for disaster recovery before the disaster

    Factory speed is necessary and nowhere near sufficient for fast rebuilding. Altadena's modular ADUs moved in months; Lytton's rebuild took years, held up by remediation, insurance and permitting. Pre-approved designs and standing supply arrangements are what convert factory speed into occupancy.

    You should now be able to answerIf a wildfire took two hundred homes in your jurisdiction next month, which pre-approved modular designs and which factories could you call on, and what would delay the first foundation?

Check yourself

If you can answer these without looking, you have finished the trail. If not, the step number tells you where to go back.

  1. Name the three failures Toronto's auditor found and where each occurred.
  2. State the number of standardised designs in your programme and their pre-review status.
  3. Give the volume commitment you can defend across an electoral cycle.
  4. Describe the factory wage classification in your procurement.
  5. Recite your site-readiness gate and who signs it.
  6. Separate the schedule and cost claims in the last proposal you read.
  7. Name the pre-approved designs and factories in your disaster-recovery plan.