The following was among actions taken at the Jan. 23 meeting of the Arlington County Board. For more information, call 558-2261.

RETIREMENT COMPLEXES -- The board unanimously approved an amendment to the county's zoning ordinance that will allow retirement complexes in which up to 75 percent of the units contain kitchens to be defined as so-called "institutional" homes.

Under current zoning regulations, facilities that are determined to be institutional homes are allowed in residential areas with special use permits.

Board members had questioned whether a complex, proposed by Sunrise Retirement Homes, could be considered institutional since about 70 percent of the units in the complex would have kitchens or kitchenettes, a feature more typical of apartments.

The board's vote cleared the way for final approval of the request by Sunrise Retirement Homes to build a $15 million retirement complex for the elderly on the site of the Calvary Church of the Nazarene, which will be torn down. The four-acre site is in a residential area at Wilson Boulevard and North Manchester Street. The board voted 5 to 0 to approve the project.

Just over a year ago, the board rejected a proposal for an elderly facility at the same location. The facility, proposed by the Arlington Hospital Foundation, was overwhelmingly opposed by immediate neighborhors and members of local civic groups, who argued, among other things, that the six-story project was too dense for the site.

Sunrise Retirement Homes President Paul Klaassen said his company's complex will serve elderly residents who can no longer live independently, but who do not require fulltime nursing care. Residents will live in an apartment-like setting, but the home will provide them with at least one hot meal daily.

Klaassen said the firm will build two four-story buildings and one three-story builing, with a total of 176 units in all three buildings. The new complex could be ready for occupants by late 1989.