Commercial Building Energy Benchmarking Due Diligence in Canada

1. Define the property and decision

Identify every parcel, building, condominium unit, shared plant, separately metered area and excluded structure. State whether the work supports an acquisition, lease, refinance, sale, capital plan or operating review and name the decision date.

A portfolio scorecard, marketing claim or owner dashboard may answer a different question from the buyer's property boundary. Reconcile civic address, gross floor area, rentable or usable area, occupancy, property use and additions before comparing periods or peers.

• Physical boundary
• Meter boundary
• Area basis
• Operating uses
• Decision date
• Permitted reliance

2. Build the complete meter and responsibility map

List electricity, natural gas, water, district energy, propane, fuel oil and other material services by provider, meter, account holder, service area and payment responsibility. Mark tenant-direct accounts, landlord-recovered costs, submeter allocations and shared services separately.

Whole-building performance cannot be inferred from owner-paid bills when tenants contract directly for material consumption. Conversely, a tenant's operating bill may include only one bay and cannot establish the building's total performance.

3. Obtain source-period records

Request provider bills or authorized interval data for a defined period, preferably enough to observe seasonality and changes. Preserve the original unit, billing dates, read type, demand charges, commodity, delivery, riders, taxes, credits and adjustments rather than copying only the amount paid.

Label missing months, estimates, true-ups, account changes, meter replacements and manually reconstructed data. Do not silently interpolate a complete year for a transaction presentation.

4. Reconcile operational context

Create a dated operating chronology for vacancy, tenant turnover, hours, production, refrigeration, kitchens, data loads, occupancy, shutdowns, renovations, additions, equipment failures and major weather events. Utility change without operational context is not an efficiency conclusion.

NRCan describes benchmarking as comparing a building with itself over time or with comparable buildings. The comparison requires accurate property-use and operating inputs; a changed use or floor area can invalidate a simple year-over-year story.

5. Separate raw, normalized and benchmark metrics

Keep actual consumption and cost separate from weather-normalized energy use, source energy, site energy, energy-use intensity, greenhouse-gas metrics and any 1–100 ENERGY STAR score. Identify the system, calculation date, reporting period and input version for every derived result.

Natural Resources Canada administers the Canadian adaptation of ENERGY STAR Portfolio Manager. It supports many property types, but not every building receives a 1–100 score. A score, certification or city program report should be represented only with its current source and eligibility record.

6. Run data-quality and anomaly review

Test gaps, overlaps, duplicate bills, implausible units, negative usage, estimated reads, abrupt meter changes, inconsistent areas and unexplained base loads. Compare bills with the ledger and use the applicable benchmarking platform's data-quality controls.

An anomaly is a question, not evidence of waste, fraud, equipment failure or savings. Assign each material item to the owner, utility, operator or qualified energy professional and retain the response.

7. Connect energy evidence to the transaction

For a purchase, link the record to leases, recoveries, normalized operating statements, capital history, condition, insurance, financing and representations. For a lease, determine which services are direct, allocated or recovered and how changes in occupancy affect the tenant's exposure.

Do not capitalize a projected saving or reduce a reserve solely from a vendor proposal. Identify required capital, commissioning, incentives, maintenance, useful life, disruption, approvals and measurement method before a scenario enters value or financing.

8. Preserve limitations and handoff

Deliver the source bills, meter map, operating chronology, area and use assumptions, benchmark export, anomaly register and responsible-party responses together. State which data belongs to a tenant or utility and what authority governs access and later sharing.

Commercially coordinates licensed commercial real estate brokerage and property evidence. It does not audit utilities, certify energy performance, design retrofits, calculate emissions, verify program eligibility or provide engineering, environmental, tax, accounting, lending or legal advice. A Commercially workpaper organizes the real-estate evidence but does not turn user-entered data into a verified energy audit or valuation conclusion.