Hi guys,
Just to check, we are looking for a 2br penthouse in D15 and would like to know how to calculate the $/PSF for penthouses.
E.g Based on 1500sqft = (a)Liveable space 1000sqft + (b)Terrace 500sqft
1. Asking $800/PSF =a+b = $1'200'00
or
2. Asking $800/PSF = a+b(1/2) = $1'00'000
or
3. Asking $800/PSF = a only = $800'00
What we like to know, is e.g 1 the usual practice when buying a penthouse here, as most ads are based on this calculation or has anyone bought one based on e.g 2
And as for e.g 3, heard from the missus colleague, who heard from her
agent, that if we were to sell the penthouse later, our selling price will only be based on the liveable space and not the roof terrace.

Which i think it is absolutely rubbish, as wouldn't this make penthouses sell like hotcakes and the ad will go like...(Buy 1000sqft @ $800/PSF, get free 500sqft roof terrace)

. Is this another one of many half baked agent(s) who know nuts about his/her industry

or i could be wrong
Thanks!
P.S Can anyone recommend a good agent who specialize in D15