We believe the unprecedented size of the proposed development by Hidden Dragon, L.L.C. at 135 Balboa Avenue is a call to our community to protect its scale and character. The proposed 5,494-square foot main house is more than twice the median size—less than 2,000 square feet—of all the properties on nearby Drakes Summit and Balboa. The house has three wings, which the applicants say they need for extended families who would visit for several weeks…