COST RANGE
What a commercial energy audit may cost
Planning ranges are $0.05–$0.12 per square foot for Level I, $0.10–$0.30 for Level II, and $0.25–$0.50 for Level III. For a 50,000-square-foot building, that equals $2,500–$6,000, $5,000–$15,000, or $12,500–$25,000, based on audit depth.
These are planning benchmarks, not a San Francisco quote. Building use, system complexity, records, access, labor, and report requirements can move the fee.
CHOOSE THE DEPTH
Level I, Level II, or Level III?
The cheapest audit is not always the best value. The right choice depends on the decision the report must support. A Level I audit is a walk-through analysis. It can screen the building for clear operating problems and practical next steps. A Level II audit adds an energy survey and analysis. It is better when an owner needs stronger findings before setting a retrofit budget. A Level III audit is investment grade. It is intended to define precise energy measures and equipment needs for a major capital decision.
Start with the question you need answered. If you only need to find likely waste, a Level I scope may be enough. If you need to compare projects, ask for Level II. If financing, design, or a large equipment purchase depends on the findings, discuss Level III. Our guide to commercial energy audits explains how audit depth changes the work.
PRICE DRIVERS
The main lines that move an audit budget
Square footage sets a starting point. The real fee also reflects how much the auditor must inspect, rebuild, measure, and explain.
EQUIPMENT SCOPE
The equipment list matters as much as floor area
A square-foot price is useful for early planning, but it does not describe the whole job. Two buildings of the same size can have very different systems. One may have a simple lighting layout and a small set of packaged heating and cooling units. Another may have central plants, many air handlers, tenant equipment, process loads, and a building automation system. The second building takes more time to document and understand.
Ask whether the quote covers lighting, heating, cooling, ventilation, controls, domestic hot water, plug loads, and any special commercial equipment. The auditor should also state which systems are excluded. A review of utility totals alone does not tell an owner which unit is wasting energy or whether controls and equipment are working together.
Equipment choices also change the kind of recommendation you receive. A low-cost operating adjustment is not the same as replacing a major unit. The report should separate operating fixes, control changes, maintenance needs, and capital replacements. This keeps an inexpensive adjustment from getting buried inside a large replacement plan.

COMPLEXITY CHECK
When the same square footage produces a different fee
Use floor area to build a first budget. Then test the building against these conditions before treating that budget as firm.
LOWER COMPLEXITY
Clear records and repeated systems
The building has complete bills, current equipment lists, accessible rooms, repeated unit types, and one clear operating schedule.
HIGHER COMPLEXITY
Mixed loads and limited access
The property has several uses, older and newer equipment, many control zones, missing records, tenant restrictions, or special operating loads.
SCOPE BEFORE PRICE
Give bidders the same picture of the building
A useful quote starts with a short scope package. Give each bidder the same building area, property use, occupancy pattern, equipment information, utility records, prior studies, and target date. Note whether the building has a controls system and whether trend information is available. Mark any mechanical room, roof, tenant area, or electrical room that has limited access.
Next, state why you are buying the audit. A general search for savings is different from an audit used for compliance, a capital plan, or equipment selection. The purpose determines how much analysis and documentation belong in the report. It also keeps bidders from making different assumptions about the required audit level.
Finally, name the people who can answer operating questions. Facility staff often know which areas run late, which units cause comfort calls, and which controls have been overridden. Give the auditor a planned interview window instead of relying on a chance meeting during the walk-through.
Do not ask for “a full audit” without defining full
Name the audit level, covered systems, site visits, analysis, report format, and decision the report must support. Otherwise, low and high bids may describe different work.
SAN FRANCISCO CONTEXT
Check the building’s local reporting path first
San Francisco’s Existing Buildings Energy Performance Ordinance applies annual benchmarking to nonresidential buildings with at least 10,000 square feet of conditioned space. Covered nonresidential buildings must also complete an energy audit, retrocommissioning, or a decarbonization plan at least once every five years.
That local choice matters when you request a quote. An owner seeking compliance should confirm the property record, due date, accepted path, and required submission before selecting an audit level. The city’s public building data includes basic building details, benchmarking information, and audit compliance status. Bring that information into the scope meeting so the consultant knows whether the job is a voluntary study, a compliance project, or both.
Permits are a later project cost
The audit itself identifies work. Recommended construction may need separate review. San Francisco DBI reviews building permit applications for life safety and code compliance.
OWNER DECISIONS
Keep the audit fee separate from the work that follows
An audit is a professional service. It is not the retrofit. Keep those budgets separate so you can compare the cost of finding opportunities with the cost of carrying them out.
The final report should help ownership decide what to do now, what to study further, and what to place in a future capital plan. It should not force every finding into one project. Some items may be operating changes. Others may need maintenance, design, permits, or replacement planning. If an operating issue is the main concern, retrocommissioning may also deserve review.
AUDIT FEE
Pays for inspection and analysis
Covers agreed site work, records review, calculations, findings, recommendations, and the stated report deliverables.
IMPLEMENTATION BUDGET
Pays for changes to the building
May include design, equipment, controls, labor, permits, testing, training, and later verification.
BUY FOR THE DECISION
How to avoid paying for too little or too much
A narrow walk-through can be a smart first phase when the owner is not ready to fund major work. It can identify clear operating issues and show where deeper analysis may be useful. The owner can then approve added study only for the systems that affect the next decision.
A deeper audit makes more sense when the property already has a capital target. If a heating, cooling, lighting, or control project is under review, the auditor can focus the analysis on the options that ownership may actually buy. This avoids a broad list with no path to action. It also lets bidders price the same end product.
Do not choose on total fee alone. Compare the audit level, included systems, site time, assumptions, calculations, report format, and follow-up meeting. Check whether the auditor will explain the findings to the owner and facility team. A clear, usable report can be worth more than a cheaper report that only lists ideas. For ongoing tracking after the audit, review how energy benchmarking fits into normal facility management.
QUOTE CHECKLIST
Five things every comparable quote should show
Put these items in the request and require bidders to answer each one. You will get a cleaner comparison and fewer scope changes.
01
Audit level and purpose
State whether the work is Level I, Level II, Level III, compliance-driven, or voluntary.
02
Included building systems
List each covered system, special load, meter, control platform, and clear exclusion.
03
Fieldwork and access
Show included visits, expected interviews, required rooms, and the plan for tenant access.
04
Analysis and deliverables
Define calculations, recommendation detail, report format, presentation, and any editable files.
05
Fee assumptions and extras
Identify travel, added visits, missing-data work, optional testing, schedule limits, and change rates.
Keep planning locally
Related Energy pages in San Francisco
Get a defensible number
Scope the audit before you price it.
Send the building size, use, utility history, and decision the audit needs to support. Flux will identify the right audit depth and the information needed for a useful proposal.
Get a free energy auditQuestions
Straight answers.
How much does a commercial energy audit cost in San Francisco?
A planning range is $0.05–$0.12 per square foot for Level I, $0.10–$0.30 for Level II, and $0.25–$0.50 for Level III. For a 25,000-square-foot building, those ranges equal $1,250–$3,000, $2,500–$7,500, and $6,250–$12,500. A local quote may change with building use, system complexity, records, access, labor, and report needs.
Which audit level should a commercial owner choose?
Choose the level based on the decision. Level I is a walk-through analysis for early screening. Level II adds an energy survey and analysis for comparing improvements. Level III is an investment-grade audit for precise measures and equipment needs. Ask the consultant to explain why the proposed level fits your goal.
Does San Francisco require commercial energy audits?
San Francisco requires annual benchmarking for nonresidential buildings with at least 10,000 square feet of conditioned space. Covered nonresidential buildings must also undergo an energy audit, complete retrocommissioning, or develop a decarbonization plan at least once every five years. Confirm the property’s status, due date, and accepted compliance path before buying a service.
Is benchmarking the same as an energy audit?
No. Benchmarking tracks and reports whole-building energy use over time. An audit examines the building and its systems to find possible improvements. Benchmark data can help an auditor understand performance, but it does not replace the field review and analysis included in an audit.
Are retrofit and permit costs included in the audit price?
Not unless the quote says so. The audit fee normally covers the agreed inspection, analysis, recommendations, and report. Design, equipment, installation, permits, testing, and verification are separate project costs. Ask for all optional services to be listed apart from the base audit fee.
What records should we prepare before requesting quotes?
Prepare utility records, building area and use, operating schedules, equipment lists, controls information, prior studies, and known access limits. Also state the audit purpose and deadline. Better records reduce assumptions and help bidders price the same work.
Can a commercial energy audit be completed in phases?
Yes. An owner can begin with a walk-through and move to deeper analysis for selected systems. Phasing works well when the capital plan is not final. Define the first report so it clearly states which findings are ready for action and which require more study.
Sources used for this guide
- [1]data.sfgov.org — San Francisco Existing Buildings Benchmark Reports
- [2]data.sfgov.org — San Francisco Existing Buildings Energy Performance Ordinance Report
- [3]energy.gov — U.S. DOE Commercial Energy Audit Planning Cost Ranges
- [4]pnnl.gov — Pacific Northwest National Laboratory Guide to Energy Audits
