In order to make India's public healthcare system available and affordable to the entire country, various government medical college hospitals (MCH) especially the out-patient departments or OPDs are undergoing facility upgradation through Pradhan Mantri Swasthya Suraksha Yojana (PMSSY). An efficient level of service at OPD can reduce cost, time and hassle of hospitalization. On provider's side, it is a welcome relief for the over-burdened health infrastructure. With high reputation in public healthcare, government MCHs of Kerala can play a pivotal role provided they are able to create a healing environment for the patients. Hence, using indicative level of BUS occupant survey of post occupancy evaluation, opinions of 67 patients were collected to grade 45 parameters related to healing environment of OPD areas of government MCH of Trivandrum and Calicut. Both hospitals are about 50 years old, but the OPD in the former one has undergone facelift recently and the latter project is in planning stage. Findings showed the benefit of flexible facility planning to accommodate increased patient load, changing pattern of treatment procedure or users' preference. Knowledge elicited from this research can assess success of such facility upgradation, identify associated drawbacks and help in setting benchmark for future healthcare facility of similar status.