The Cincinnati Planning Commission on Friday unanimously approved a lease in Eden Park to Playhouse in the Park, which will allow a new theater to be built to replace the main Marx Theater. The city will lease the land for 99 years, with a base annual rent of $88,500 based on an appraisal, according to documents filed with the planning commission. The city will reappraise the site every 10 years, with rent increases capped at 25% of the rent from the previous 10-year period. The city will use…