My recommendation will be Punggol. Development of Punggol 21+ (capital appreciation potential), accessibility to Seletar Aerospace Park (rental potential), and an unique waterfront and recreational lifestyle living which you cannot find anywhere else.
Hope this helps. Just give me a buzz if you need more info. I'm sure I can be of great help to you.
If you looking for rental yield, I will strongly recommend Hillview area.
This is because D21 is nearer to the city with proven track record. As you had mentioned, its freehold also.
That is just my personal opinion.
Hope that I had answered your question.
Feel free to contact me if need my assistance.
Thanks and Regards
Senior Group Director
DWG Ace Division
Dennis Wee Realty Pte Ltd
Will you consider Queenstown Area?
I look forward to hear from you soon
Choo Jia Ming
B. Hons (EEE)
Savills Sales Director
HP: 9476 2732
Salesperson registration. no: R026370F