Commissioning, Punch List and Occupancy

After the set, the project still needs system testing, finish completion, inspections, deficiencies and formal occupancy approval.

Reviewed for destination-code contextInternational with U.S. and Canadian emphasis
Permanent-home context: This guide uses “modular home” for a code-compliant building made as three-dimensional modules, transported to a permanent site and assembled on an approved foundation. It does not use the term as a synonym for a trailer, mobile home or HUD-code manufactured home.

Commission the house

Test plumbing, electrical, heating, cooling, ventilation, alarms and controls as complete systems. Verify balancing, drainage, pressure and equipment start-up records.

Check doors, windows and finishes after the building has been connected and levelled, not only in the factory.

Manage deficiencies

Use one punch list that identifies whether the factory, set crew or site contractor owns each item. Add photographs, dates and acceptance criteria.

Prioritize water entry, structural issues, life safety and systems before cosmetic repairs.

Close permits and contracts

Obtain occupancy or completion documents and confirm outstanding permits. Deliver manuals, warranties, labels, approved drawings and inspection records to the owner.

Final payment should follow the contract and applicable law, with unresolved work documented rather than forgotten.

Apply this guide to a real project

For commissioning, punch list and occupancy, create a dated project note tied to the destination address and current drawing revision. Identify the authority, designer, factory or contractor responsible for each unresolved item. Attach the written evidence for ‘Have all building systems been tested as installed?’ and ‘Is every deficiency assigned to a responsible party?’ rather than recording a verbal assurance.

Before a deposit, production release, shipment or final payment, convert every open question into a named action with an owner and deadline. Keep superseded drawings and decisions in the record so later inspectors, lenders, insurers and future owners can understand why the completed house differs from an early sales plan.

Questions to resolve before proceeding

  • Have all building systems been tested as installed?
  • Is every deficiency assigned to a responsible party?
  • Are occupancy and permit-closeout documents complete?
  • Has the owner received the permanent record package?
Stop point: Do not treat furniture delivery or utility activation as proof that legal occupancy has been granted.