Questionnaire Return Date is Feb. 10

The deadline for returning questionnaires for the 18th annual survey of Southern Califonria residential construction by the Times real estate section is Feb. 10.

Home builders in Los Angeles, Orange, San Diego, Riverside, San Bernardino, Kern and Ventura counties who have not received the mailed forms may obtain the single-sheet survey by calling 213/237-7349.

The survey will gather information on sales volume and construction of homes, condominiums, apartments and inventory for 1988 and projections for construction and sales for 1989.