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Due Diligence

HVAC capacity and condition

Test whether the system can support occupancy, equipment, hours and indoor-environment requirements.

Test whether the system can support occupancy, equipment, hours and indoor-environment requirements.

Planning principle: Due diligence should resolve what the premises can support, what it will cost and who bears each risk before conditions expire.

Why this issue matters

HVAC capacity and condition can affect more than the headline rent. It may change opening timing, fit-out cost, operating flexibility, insurance, financing, customer access and the amount required to leave the premises at the end. A lease can be legally valid yet still be a poor operational fit, so the decision should connect the document to the actual property and business plan.

Start with the current offer, floor plans, operating-cost information and the business requirements. Mark every item as confirmed, assumed, excluded or unresolved. A verbal assurance should be converted into clear written language or treated as uncertain.

Five items to verify

  • Equipment age and service records: record the document, assumption, responsible party and deadline needed to verify it.
  • Heating and cooling capacity: record the document, assumption, responsible party and deadline needed to verify it.
  • Ventilation and outside air: record the document, assumption, responsible party and deadline needed to verify it.
  • Controls, zoning and after-hours use: record the document, assumption, responsible party and deadline needed to verify it.
  • Replacement and maintenance obligations: record the document, assumption, responsible party and deadline needed to verify it.

Cost and cash-flow lens

Model the full term rather than one month. Include deposits, professional fees, design, permits, construction, equipment, moving, downtime, base rent, additional rent, utilities, maintenance, insurance and restoration. Separate landlord incentives from costs that remain payable during an abatement. Where an amount can change, test a base case and a higher-cost case.

Timing matters as much as totals. Identify when deposits are due, when rent starts, when an allowance is reimbursed, when operating-cost reconciliations arrive and when renewal or termination notices must be delivered. A seemingly affordable lease can create a cash squeeze if these dates cluster before the business opens.

Questions for the offer and draft

  • What does the proposal or draft say about equipment age and service records?
  • What does the proposal or draft say about heating and cooling capacity?
  • What does the proposal or draft say about ventilation and outside air?
  • What does the proposal or draft say about controls, zoning and after-hours use?
  • What does the proposal or draft say about replacement and maintenance obligations?

Property and operational review

Check the site in operation, not only during a quiet showing. Observe access, parking, loading, waste handling, noise, neighbouring uses, HVAC operation and building management. Match equipment and staffing plans to power, plumbing, ventilation, structural capacity, internet, security and hours of access. Where the proposed use can trigger zoning, licensing, fire, accessibility or building work, verify the approval route before waiving conditions.

Negotiation approach

Rank requested changes by business consequence. A clause that protects the permitted use, controls an uncertain pass-through or preserves assignment flexibility may be more valuable than a small face-rent reduction. Support requests with a plan, cost estimate or identified risk. Keep the letter of intent, lease draft, work letter, drawings and side agreements consistent.

Working verification table

TopicStatusEvidence needed
Equipment age and service recordsNot verifiedDocument, inspection, quotation or professional review
Heating and cooling capacityNot verifiedDocument, inspection, quotation or professional review
Ventilation and outside airNot verifiedDocument, inspection, quotation or professional review
Controls, zoning and after-hours useNot verifiedDocument, inspection, quotation or professional review
Replacement and maintenance obligationsNot verifiedDocument, inspection, quotation or professional review

Before committing

  • Confirm the legal name of the parties and authority to sign.
  • Confirm the premises, area, measurement method and plans.
  • Build a multi-year total occupancy budget with sensitivity cases.
  • Complete property, approval, insurance and operational review.
  • Have qualified advisers review matters within their professions.
  • Record key dates, conditions, deliverables and responsibility for follow-up.
Not a substitute for professional review: This page is a planning framework. Commercial lease law, tax treatment, measurement standards, building requirements and remedies vary by location and facts.
Prepared by David R. Ellsworth

Educational commercial-property planning content. Reviewed for clarity, assumptions and separation between estimates and professional advice.