This is a mainly private residential area off Bukit Timah / Dunearn Road and near the former Singapore Turf Club (now replaced with a shopping complex - Turf City).
The area is where the Singapore Swiss Club and the Swiss School, catering to citizens/expatriates of Switzerland (as well as other nationalities), are located. The club was established in 1871 as the "Swiss Rifle Shooting Club of Singapore" and has a long history that tells the story of the early Swiss community in Singapore. Not surprisingly, the road name on which it is located is Swiss Club Road.
Other roads seen in this map are Jalan Kampong Chantek ('Chantek', alternatively spelt 'cantek', 'chantik' or 'cantik' is Malay for 'beautiful'), Bukit Tinggi Road (translated as 'high hill road'), Binjai Park and Binjai Rise.