Block 20, Lot 1, where the permitted accessory activities shall be limited to ball fields and associated fencing and back-stops that exist as of the date of adoption of this chapter, temporary parking on the ball fields, and tennis courts and their associated fencing that exist as of the date of adoption of this chapter. Additionally, the 13 existing parking spaces that are located to the immediate west of the tennis courts, and which derive their access from Club Drive, are also permitted.