How Commercial Property Is Valued
Commercial property value does not work the way house value does. A home is valued on what similar homes nearby have sold for. A commercial building is valued mostly on the income it produces, with comparable sales acting as a check on that math. Understanding the three approaches appraisers and brokers use makes it much easier to price a deal in Rochester or anywhere across Macomb County.
The income approach is the workhorse. Take net operating income, divide by a market cap rate, and the result is the property value. A building generating $150,000 in NOI at a 7.5 percent cap rate is worth $2 million. This is how investment property trades. The challenge is getting NOI right. Rents need to be verified, expenses need to include a full vacancy allowance and a reserve for capital items, and Michigan property taxes need to be modeled at the post sale uncapped value, not what the current owner is paying.
The sales comparison approach lines up recent sales of similar buildings. This works well for small owner user properties like a dentist office in Rochester Hills or a retail condominium downtown, where the buyer is not focused on income. It also helps check the income approach. If every similar building recently sold at $120 per square foot and the income approach says $180, something is probably off. Finding true comps in Macomb County takes local knowledge because the Van Dyke corridor, Hall Road, and the industrial submarkets in Sterling Heights and Warren each trade on different metrics.
The cost approach asks what it would cost to rebuild the property from scratch, minus depreciation, plus the land value. It matters most for newer buildings and special purpose properties like medical facilities or manufacturing plants near Selfridge ANGB. For a 40 year old industrial flex building along Van Dyke, the cost approach rarely drives the price because depreciation is hard to pin down and the income approach tells a clearer story.
Michigan’s property tax reset deserves its own line in any valuation. A building the current owner has held for fifteen years might have a capped taxable value well below the state equalized value. When the building sells, that cap comes off and taxes jump, sometimes by 30 percent or more. A buyer using the seller’s current tax bill in the NOI will overpay. TDG Commercial rebuilds the NOI with the buyer’s expected tax basis before presenting valuation numbers.
TDG Commercial combines local sales data, current cap rate trends across Rochester MI and Macomb County, and rebuilt NOI to help clients arrive at a realistic value. As some of the best commercial agents in Rochester MI, they bring the numbers and the market context together in one place.
Gross rent multiplier, or GRM, is a quick check some investors use alongside cap rate. GRM is purchase price divided by annual gross rent. A 6 GRM means the price equals six years of gross rent. It is faster than cap rate because it ignores expenses, which is also its weakness. A property with high GRM can have low NOI if expenses are heavy. For small properties where expense data is thin, GRM gives a rough comparison point, but any real decision should still come back to net operating income and the income approach.
Broker opinion of value, often called a BOV, is another tool that fits between a full appraisal and a quick estimate. A BOV pulls recent sales comps, current rent comps, and applies local cap rate ranges to produce a value estimate, usually in five to ten business days. It is free to clients considering a sale and carries real weight because brokers update their comp set constantly. TDG Commercial provides BOVs across Macomb County for owners weighing a sale, a refinance, or an estate planning decision, and those conversations often start six to eighteen months before a property actually hits the market.
