Concerned Voices

To the Editor:

As a lifetime Brooklyn resident and one who has lived in various neighborhoods in the borough, I am also delighted about the commercial renaissance outlined in ''Opening the Brooklyn Option'' (editorial, Dec. 26). If such projects as Metrotech and Fulton Landing come to fruition, it will indeed revitalize those sections of the borough that have suffered because of poor policy and outright neglect.

However, while your enthusiasm was boundless, it was disappointing to see no mention of an inherent problem that goes along with commercial gentrification: displacement of middle- and lower-income families. The same day, a story appeared elsewhere about the increasing numbers of homeless projected for 1985 and the lack of suitable housing to meet the problem. Sadly, you did not acknowledge this.

Certainly, Brooklyn needs this economic boost and the multiplier effect that should undoubtedly follow. But all concerned must deal with both the economic and social costs of displacing people who could potentially be added to the homeless rolls. It is as much a responsibility of companies like E. F. Hutton as it is of public officials and the media to attend to those likely to be displaced.

An economic shot in the arm is fine as long as there is no great loss of blood.

BRUCE KESSLER Brooklyn, Dec. 27, 1984