A weekly look at office and industrial real estate in the county.

TUSTIN COMMERCIAL AND INDUSTRIAL REAL ESTATE As of Dec. 31, 1990. OFFICE BUILDINGS Existing Buildings Total square feet: 599,869 Vacant space: 123,372 Vacancy rate: 20.57% Monthly Lease Rates per Square Foot Existing Vacant Office Space Average: $1.58 Low: $1.25 High: $1.75 High-Tech/Research & Development Space Sale price per square foot Average: $94.50 Low: $85.00 High: $112.00 Lease price per square foot Average: $0.67 Low: $0.30 High: $0.89 Manufacturing/Warehouse Space Sale price per square foot Average: $66.50 Low: $63.00 High: $70.00 Lease price per square foot Average: $0.45 Low: $0.40 High: $0.56 Source: Coldwell Banker