I was disappointed by Greg McBride's letter continuing the quibbling over development in Silver Spring {Letters to the Weekly, Dec. 3}. I had hoped that we could all move on and begin working together for the best possible plan for Silver Spring.

During the debate, I said the level of development the council approved for Silver Spring is the equivalent in square footage of Montgomery Mall, with all of the new office space in Bethesda on top of it.

Amazingly, and conveniently, Mr. McBride used only the square footage from the Lloyd Moore project to assert that my analogy was incorrect. Certainly, Mr. McBride is well aware that the council approved development capacity for Silver Spring that will allow for Planning Board approval of not one but three major projects: 1) Lloyd Moore's mixed-use Silver Triangle Project (according to a statement of Oct. 12 provided by Mr. Moore, this project will include 840,000 square feet of retail, 920,000 square feet of office space, 200,000 square feet for a hotel and 100,000 square feet for residential use); 2) Walter Petrie's mixed-use redevelopment of the Hecht's property (approximately 300,000 square feet of retail and 280,000 square feet of office space); and 3) Foulger-Pratt's office development for the National Oceanic and Atmospheric Administration (with 15,000 square feet of retail space and almost 600,000 square feet of office space not previously approved).

Add it up: Silver Spring will get in excess of 1.15 million square feet of retail space. Montgomery Mall contains 1.2 million square feet of retail space (the expanded Wheaton Plaza is 1 million square feet; White Flint is 800,000). Silver Spring will get approximately 2 million square feet of new office and hotel space.

For the record, according to a recent Metropolitan Washington Council of Governments study, during the period from 1980 to 1986, construction began on 2.2 million square feet of office space around the Bethesda Metrorail station. During this period, construction began on an almost equal amount -- 1.9 million square feet -- near the Silver Spring Metro.

In summary, over the last seven years, new office construction in Silver Spring has been almost equal to that in Bethesda. The county council has now approved a doubling of that new office space for the core of Silver Spring along with new retail space approximately equivalent in size to Montgomery Mall.

I hope we can now move forward in a collaborative manner to approve the best possible revitalization plan for Silver Spring.

BRUCE ADAMS Councilmember, Montgomery County Council Rockville