Circular-Materials Exchange Architect — Construction Supply

The mandate

Demolition contractors can list recovered steel, timber and facade components, but buyers cannot judge identity, condition, testing, dimensions, availability date and liability well enough to commit them to new projects. The existing marketplace emphasises listings and estimated carbon benefit while inspection and logistics happen offline. The consortium needs a transaction-grade operating design before further platform investment.

The deliverable is a Circular Materials Exchange Blueprint for three material classes, covering asset identity, source building, deconstruction, condition, test, certification, quantity, custody, reservation, transport, acceptance and claim. It will include reference listings, transaction workflows, carbon evidence, liability options and economics that account for inspection, storage and failed match.

Milestone one at week four provides physical journeys, buyer evidence and failure cost. Week nine concludes milestone two with contracts, architecture and governance options. At week sixteen, milestone three delivers six end-to-end transaction trials including rejection and substitution. The accepted blueprint, legal schedules, participant model and investment case form milestone four at week twenty-two.

Acceptance requires engineers and buyers to make independent use or rejection decisions for unseen lots from platform evidence, quantities to reconcile through custody, and carbon claims to trace to the actual substitution. At least four independent participants must accept roles and dispute rules. The council signs after an internal team manages a failed inspection and replacement without consultant help.

The client consortium will provide demolition inventories, inspection and test records, project demand, contracts, logistics cost, carbon methods and prior failed transactions. Contractors, laboratories, engineers and buyers will join trials; client teams build reference workflows. Professional suitability and product acceptance remain with authorised participants, while the council resolves disputed liability options.

Why this is external work

Marketplace teams favour listing volume, demolition firms favour rapid disposal and buyers bear downstream performance risk. No participant can neutrally define evidence and liability across the whole transaction. External work can connect physical condition, engineering decision and platform economics without benefiting from resale of inspection, logistics or software services.

What you will own

• Map source building, recovered item, deconstruction, condition, test, certification, lot, custody, reservation, transport and acceptance.
• Define minimum evidence and confidence by material class, intended reuse and consequence of incorrect condition.
• Design listing, hold, inspection, bid, substitution, rejection, return and claim workflows with accountable parties.
• Exercise quantity change, failed test, damaged transport, project delay, incorrect dimension and disputed carbon substitution.
• Build carbon evidence tied to actual recovered-product use rather than listed availability or theoretical displacement.
• Price inspection, storage, logistics, failed match, warranty and dispute across participant and platform economics.
• Transfer participant onboarding, evidence change and failed-transaction review to consortium operating owners.

Candidate qualifications

• Designed production digital exchanges for construction materials, industrial assets, commodities or other condition-dependent physical products.
• Governed inspection, test, certification, custody and acceptance evidence where engineers and buyers retained professional suitability decisions.
• Built circular-product economics including inspection, storage, failed match, warranty and logistics rather than marketplace listing volume alone.
• Connected carbon and avoided-waste claims to actual physical substitution and end use with retained transaction evidence.
• Ran multi-party physical transaction trials covering failed test, rejection, damage, delay, substitution and commercial dispute.
• Delivered vendor-neutral exchange governance adopted by legally independent commercial, engineering and professional participants.

Non-negotiables

• The named architect must lead Helsinki workshops and observe demolition, testing and construction transaction trials.
• No commission or financial interest may exist in inspection, certification, logistics, resale or platform providers considered.
• Engineers and buyers retain suitability, safety and product-acceptance decisions for recovered materials.
• Commercially sensitive project and transaction evidence must remain within agreed participant uses.

1. 49 words maximum. Describe a recovered-material transaction that failed because condition or liability evidence was inadequate.
2. 49 words maximum. How would you prove a carbon benefit resulted from actual substitution rather than a marketplace listing?
3. 49 words maximum. Which client participants and records are essential before trialling a rejected material lot?