oasis 99Fernvale Oasis is a 99 years leasehold HDB development located at Fernvale Street in District 28. Completed in 2027, it has a total of 1 blocks within the development and comprises a total ofRecent transactions from SkyOasis @ Dawson. Data from Researcher. There is a pattern of increasing prices. For example, in May 2025, a four-room unit at 39A Margaret Drive was sold for S$1.188 million, while a