A condominium or community of owners can produce substantial energy savings through work on common building systems. Central heating, domestic hot water, façade insulation, roofs, windows in common areas, pumps, controls and shared lighting may all warrant assessment. Collective projects also create governance and evidence questions: the technical measure must qualify, the community must approve the relevant acts and the person signing documents must have authority.
Identify the project boundary
Start by distinguishing communal assets from equipment owned by individual occupants. A central boiler replacement has a different boundary from upgrades carried out inside selected homes. Envelope work may affect the full building or only a defined area. The CAE calculation and CAE agreement or private energy-savings transfer contract should describe the same physical scope as the resolution, contract and invoices.
Review potentially relevant residential catalogue sheets, including references such as RES010, RES020, RES022, RES030, RES040, RES060, RES070, RES220 and RES230. The current text of each sheet determines applicability. Do not combine areas, systems or buildings merely because one contractor delivers the work.
Secure valid community decisions
The community should document approval of the works and any assignment of energy-savings rights under the governance rules that apply to it. Minutes should identify the project clearly and record the authorised representative. If the works or CAE agreement or private energy-savings transfer contract change materially, confirm whether additional approval is necessary.
Before signature, check the community's legal name, tax identifier, property address and representative details. The president, administrator, project manager and contractor do not automatically have identical powers. Where authority is uncertain, obtain appropriate legal or administrative advice rather than relying on an informal understanding.
Survey the existing building
Collect drawings, equipment inventories, maintenance records, energy bills and prior energy assessments. Photograph plant rooms, labels, controls, emitters, pumps and affected envelope areas. For central systems, record fuels, capacities, distribution configuration and operating arrangements. Metering information should identify which building or service each meter covers.
A representative sample may be useful for repeated elements, but it must follow the applicable methodology and support the quantities claimed. Avoid extrapolating from one window, radiator or dwelling without a justified sampling approach. Preserve records before scaffolding, demolition or equipment removal begins.
Coordinate contractors and documents
Collective works often involve an engineer, architect, installer, main contractor and several subcontractors. Give them one evidence schedule before work starts. It should allocate responsibility for photographs, technical sheets, serial-number lists, area measurements, commissioning records, invoices and certificates.
Run three document checks: after the initial survey, before concealed work is covered and at practical completion. Match final quantities and models to invoices. Record approved substitutions and variations. If several buildings or phases are involved, keep separate asset and cost schedules so reviewers can trace each claimed action.
Protect the community's position
The community should receive the savings estimate, calculation assumptions, commercial offer and draft CAE agreement or private energy-savings transfer contract in understandable terms. Ask whether payment is fixed or depends on verified savings, which costs are deducted, who answers verification queries and what happens after rejection or partial acceptance.
Final checklist: confirm approval and signatory authority; verify the project boundary; retain baseline evidence; reconcile contracts, invoices and installed assets; keep a complete copy of the application evidence; and review compatibility with public support. CAE recognition is subject to technical and administrative controls, so meeting approval and construction milestones does not guarantee issuance.