| Framework | What it asks of the real-estate line | Status in Canada (Sept. 2026) |
|---|---|---|
| CSDS 1 — General Requirements | Material sustainability risks tied to occupied and leased space, identified and governed | Voluntary; effective from 1 Jan 2025; non-climate topics phase in by 1 Jan 2027 |
| CSDS 2 — Climate-related Disclosures | Scope 1/2 (then progressively Scope 3) GHG emissions by building; physical and transition climate risk by site | Voluntary; effective 1 Jan 2025; relief on Scope 3 and scenario analysis until 2028 |
| ISSB IFRS S1 / S2 | The global baseline CSDS is modelled on | Not Canadian law; the reference standard lenders and investors abroad often expect |
| CSA climate-disclosure rule (proposed) | Would have made climate disclosure mandatory for reporting issuers | Paused April 2025; no mandatory federal or provincial rule in force |
| GHG Protocol Scope 1/2/3 (incl. leased assets) | The accounting method deciding whether landlord or tenant reports a building's emissions | Not law; the methodology CSDS 2 and most voluntary disclosure relies on |
Insights
ESG Disclosure and the Real-Estate Line: What Canadian CFOs Must Substantiate
Scope 1 and 2 emissions, most energy spend and a portfolio's climate risk sit in its buildings. As ESG disclosure—voluntary under Canada's new CSDS standards, for now—reaches the boardroom, the real-estate line needs data it can defend.
Sept. 22, 2026 · Patricia Karchemny · 7 min read
Buildings, Data and Compliance in Québec Part 1 of 1
Where ESG disclosure actually lands
A portfolio's buildings are usually where Scope 1 and Scope 2 emissions actually originate — on-site combustion is Scope 1, purchased electricity, steam or chilled water is Scope 2 — and where site-level physical climate risk (flood, extreme heat, wildfire smoke, an ice-storm outage) and a growing share of Scope 3 concentrate. ESG disclosure lands on the real-estate line whether or not a specific rule requires it yet.
Lenders, insurers, larger customers and a company's own audit committee are asking for this data before any regulator mandates it. The governance question is not whether to have an opinion on ESG — it is whether real estate can produce numbers that survive an auditor's or a lender's scrutiny.
What Canada requires today: CSDS 1, CSDS 2 and the CSA
Canada's sustainability-disclosure landscape is voluntary today, a status lenders, boards and audit committees increasingly treat as a working baseline regardless of legal force. The Canadian Sustainability Standards Board (CSSB) finalised CSDS 1 (general sustainability-related disclosures) and CSDS 2 (climate-related disclosures) in December 2024, modelled on the ISSB's IFRS S1 and IFRS S2. Both apply, voluntarily, to reporting periods beginning on or after 1 January 2025, with relief that defers non-climate topics and full Scope 3 or quantitative scenario analysis by two to three years.
Separately, the Canadian Securities Administrators (CSA) paused, in April 2025, work on a mandatory climate-disclosure rule for reporting issuers, citing global uncertainty. Existing continuous-disclosure obligations to report material information still apply, but no dedicated mandatory climate-disclosure rule is in force in Canada as of September 2026 — confirm current status with auditors and securities counsel before relying on this for a specific filing.
What the real-estate line must be able to substantiate
Whichever framework applies, the underlying ask is unforgiving of gaps: energy metered by building, not portfolio estimates; an emissions inventory that assigns each site to Scope 1, 2 or 3 by lease boundary; and physical climate risk by location, not head-office postcode. The lease boundary matters most. Under the GHG Protocol's operational-control approach — what most occupiers use — a tenant controlling a leased space's energy typically reports its own Scope 1/2; where the landlord retains control, those emissions sit in the landlord's inventory and appear only as the tenant's Scope 3 (Category 8). Getting this wrong risks a double-count or a gap an auditor will find — confirm the classification with your auditors.
Data completeness is the practical failure mode: a portfolio with utility accounts split across landlords, several outsourced FM providers and a mix of net and gross leases rarely has one place a total site-energy figure can be pulled reliably. That gap, not the accounting rule, is usually what blocks disclosure.
The governance gap: data nobody consolidates
The data a disclosure-grade inventory needs — meter reads, utility invoices, landlord recharges, FM-provider consumption reports — sits with four parties with no built-in reason to reconcile: the landlord's property manager, the outsourced FM provider, the utility, and whatever internal system tracks the lease portfolio. Each holds a piece; none owns the whole.
This is a governance gap before it is a data gap. Someone inside the organisation — not the auditor at year-end — needs to own consolidation: which sites report, on what cadence, reconciled against which source documents, with gaps flagged rather than silently estimated.
A practical readiness path
A five-level readiness ladder shows where a portfolio actually stands, from no consolidated data to a disclosure-grade inventory with real controls. Most multi-site portfolios sit at level two or three: bills are collected somewhere, but energy is not consistently metered by building and rarely verified.
Moving up a level rarely starts with new technology. It starts with an inventory of which buildings hold a utility account in the organisation's name, one point of accountability for consolidation, and a documented method — not tribal knowledge — for classifying each site's Scope 1/2/3 boundary before the next reporting cycle.
Key takeaways
- Buildings hold the data behind most Scope 1/2 emissions, energy spend and site-level climate risk — disclosure lands there whether or not a rule requires it yet.
- CSDS 1 and CSDS 2 are voluntary in Canada, effective from 1 January 2025, with multi-year transition relief; the CSA's mandatory climate-disclosure rule remains paused as of September 2026.
- The lease boundary decides who reports a building's emissions under the GHG Protocol's operational-control approach; get it wrong and an auditor will find a double-count or a gap.
- The real barrier is usually governance, not technology: nobody consolidates data held across landlords, FM providers and utilities.
- A five-level readiness ladder is a useful diagnostic before any public disclosure commitment.
Frequently asked questions
Are CSDS disclosures mandatory in Canada?
No, not as of September 2026. CSDS 1 and CSDS 2 are voluntary standards from the Canadian Sustainability Standards Board, and the CSA paused work on a mandatory climate-disclosure rule for reporting issuers in April 2025. Existing continuous-disclosure obligations still apply. Confirm current status with securities counsel before treating this as settled for a specific filing.
Who reports emissions from a leased building — the landlord or the tenant?
It depends on the lease boundary and the organisational-boundary approach applied. Under the GHG Protocol's operational-control approach, whoever controls day-to-day energy use typically reports Scope 1 or 2; otherwise it sits with the landlord and appears only as the tenant's Scope 3. Confirm the classification with your auditors.
What building data do auditors typically ask for?
Energy metered by building rather than portfolio averages, lease type and boundary classification per site, utility invoices or landlord recharge statements as evidence, and a documented method for any estimated or missing data.
Does IFRS 16 lease accounting decide the emissions boundary too?
Not directly. IFRS 16 and ASPE govern the balance-sheet treatment of leases, while the GHG Protocol's boundary choice — operational control versus equity share — governs emissions reporting. The two frameworks answer different questions; ask your auditors how your organisation aligns them.
Getting from bills collected somewhere to a disclosure-grade inventory is a governance and data problem before it is a reporting one — the kind of gap our data and technology benchmarking work is built to close, alongside the broader workplace and ESG governance mandate. If your board wants numbers before anyone owns the sources, a confidential conversation is a reasonable next step — get in touch.