What is net absorption in commercial real estate?

Net absorption in commercial real estate measures the net change in occupied space within a defined market over a specific period calculated as space newly leased or occupied minus space vacated or returned to the market. A positive net absorption means more space was occupied than vacated indicating demand growth. Negative absorption indicates the opposite.

Net Absorption Formula

Net Absorption = Gross Space Newly Occupied Space Vacated in the Same Period

Example: If 2 million sq ft was newly leased and 1.5 million sq ft was vacated in a quarter, net absorption = +5,00,000 sq ft.

Why Net Absorption Matters

• Positive absorption = market demand exceeds supply; rents tend to rise.
• Negative absorption = demand falling; vacancy rises; rents soften.
• Tracks fundamental occupier demand separate from headline leasing figures.

Net absorption is the most accurate indicator of real commercial real estate demand because it subtracts supply returned to the market from new leasing activity. Investors should track net absorption trends in their target markets to identify early signals of rental growth or correction.