Maintainability is “The ability to achieve the optimum performance throughout the lifespan of a facility within the minimum life cycle cost (LCC)”. As defined in order to achieve optimum performance maintenance tasks to be performed are important. And to do so time of occurrence of the task should be known, which can be obtained from the maintenance cycles of various components. Condition assessment is a procedure that uses an inspection process and analysis procedure for determining the condition of a building or group of buildings. Attempt is being made here to derive maintenance frequency for various building envelope components. 10 buildings from Mumbai were assessed and past data collection was done through complaint registers, checklist and interviews. Data collected was analyzed and overall condition of the components was derived in three levels as good, fair and bad, even maintained components showed sign of distresses and were in all the three categories. Past records and interviewed data was used to generate maintenance frequency which will facilitate for preparing preventive maintenance plans and budgetary 3 provision. As concluded by Dr.-Ing. Carolin Bahr in his research paper “Validation of Maintenance Cycles for Public Buildings” values given in literature regarding the different maintenance packages should be verified and adapted using real data, as the maintenance frequency is subjected to vary from building to building, result presented can be used as guidelines.