I've been a silent reader with no account, I stay at Tenteram Peak and I've decided to sign up for an account to help you out with your questions.
Amenities -
1. 24 hours Giant supermarket will be opening on the 30 August 2017.
2. Eating house is currently under renovation and has placed a "stalls for rent" banner.
3. There is a clinic and hair salon. The salon has completed renovations. The clinic is looking to hire staff.
4. Childcare centre will be opening soon.
5. 10 minutes walk to Whampoa Market.
Transportation / Connectivity -
1. If you drive, 10 minutes is all you need to get to town.
2. I assume not many people know there is a tunnel under the CTE expressway. You can walk from Tenteram Peak to Boon Keng train station in 20 minutes. (If you walk fast, maybe you can reach in 15 minutes time) Walk through the tunnel, pass the private apartments, temple, church. You will reach St. George's Road estate, continue walking till you see the under construction BTO, St. George's Towers. Walk on, you will arrive at Towner Road estate where Boon Keng train station is.
3. There is a bus stop opposite block 116A. Bus 21 and 129. Bus 21 goes to Shaw Plaza / Balastier Market / Zhongshan Mall / Novena train station.
4. You can walk (probably 8 minutes) to the PIE expressway bus stop, there are buses to Toa Payoh train station.
I don't quite understand your last question. Are you looking to park your car along the roads at the private estate area to walk over to Jalan Tenteram?
The roads along the private estate are very narrow and there is no way you can park your car.
