Price Per Unit

What Is Price Per Unit?

Price per unit is the total acquisition price of a multifamily property divided by the number of residential units. It is the most intuitive comparison metric in apartment investing, allowing you to quickly benchmark one building against another regardless of unit mix, age, or size. When an investor says "I bought at $95K per door," every experienced multifamily investor immediately understands the price point and can assess whether it's reasonable for that market.

How to Calculate and Use Price Per Unit

Price Per Unit = Total Property Price / Number of Units. A 20-unit apartment building selling for $2,000,000 is $100,000 per unit. The calculation is simple; the interpretation requires market context. $100,000 per unit is extremely cheap in Boston or Denver but might be above market in parts of the Midwest or South. Always compare price per unit within the same submarket and among similar property classes (vintage, condition, unit size) for meaningful analysis.

What Price Per Unit Tells You — and What It Does Not

Price per unit is a screening tool, not a valuation tool. It helps you quickly identify outliers — properties priced significantly above or below market on a per-unit basis deserve a closer look. However, it does not account for unit size (a building with 1,200 sq ft three-bedrooms vs. 500 sq ft studios at the same per-unit price is not an equal comparison), condition, location quality, or income potential. Always combine price per unit with cap rate, price per square foot, and cash flow analysis for a complete picture.

Why Price Per Unit Matters

Institutional investors, brokers, and lenders all speak in price-per-unit terms when discussing multifamily. Knowing your market's typical range lets you instantly assess whether a deal is worth pursuing. It's also valuable for tracking market trends — rising price per unit across a submarket indicates cap rate compression and increasing competition. Replacement cost per unit (what it would cost to build new) sets an effective ceiling: if existing properties trade above replacement cost, new construction becomes more attractive than acquisition.

Practical Tips

Build a database of price-per-unit comps for every submarket you target by tracking closed sales from CoStar, local brokers, or county records. Segment your data by property age, class (A/B/C), and unit size for meaningful comparisons. When evaluating a value-add deal, calculate both the current price per unit and the projected stabilized value per unit — the spread represents your potential equity creation. Be cautious of low price-per-unit deals that require massive capital expenditure per unit to stabilize; the total cost per unit (acquisition plus renovation) is what matters. In markets where institutional capital is active, price per unit tends to compress faster because large funds prioritize scale over yield.