I think the investment is risky from many points of view.If you plan to live in it as a permanent home year around , it would make sense - PERHAPS.
Your "rate of return" assumes inflationary pricing, house will appreciate in value - that it MAY raise in value, and that ia s Realtors normal BS selling point - which they cannot substantiate or back up. Don;t be a sucker. Avoid the glittzy marketing pitches....
How many of you here in the USA and in Northern California, expected a "rate of return" on the house or condo you bought here to live in, and now your equity has disappeared, and you owe more mortgage than the value of the house today? Helllllooooo...
There is no USA federal tax break for owning property overseasa in most cases, cannot write off interest or property taxes on your 1040 tax return - so forget that.
What if.....
Condo Association HOA is corrupt, bankrupt, or bylaws are not enforced?
The price you pay is top of the market, and you go to re-sell at a 30-50 % discount?
Law and rule change in the country, and your ownership is NIL, or at risk.
Rent is a lot cheaper, no headache, and no capital risk to you .
If they curtail or shut down the main entertainment of the city, you are totally screwed.
Try finding an honest "local native property manager". to rent out your place, if you are not there?
Think hard on this one, guys would bought in certain areas of BKK had a real scare this year, the Pattays guys are probably fine, don;t know about the Filapines - a bit too much corruption for the average guy, and places your investment at risk.
good luck -