Found a odd way to get this not totally legit. I will try and explain how I did it. You will need access to the exchange. Also Credit to all gamers mentioned in this guide.
*As people have suggested in the comments, you don't have to use the houses here, I made them as suggestions. Since making this I'd imagine more people have created houses thus pushing these back along the line. So instead of having to search through the list, Just do the same with similar priced properties.*
Just like to say I don't know if this only works for me, glitch, bug whatever, I have tried it twice and worked both times. Please Let me know if it worked for you.
New game - Choose Household - 13 Ocean View Lane
Start, Town View, 13 Ocean View Lane, Replace, Yes, Yes. You should have around $230k
Now tricky part, go into the exchange and download "Rose Crest Mansion" Created by OIHighRollerIO Valued at $163k
Upload it onto the 13 Ocean View Lane Plot. Now Sell the two cars outside the house. Now again Replace the house same way as before. Now your funds should have gone up to around $290k.
Now back into the exchange, Download "Mista Bishop Estate 804" Created by E2W xTHE BOSSx Valued at $285k
Now sell the 4 cars outside the house, and Replace for a third time. Now your new fund total should be around $370k
Now exchange again and Download "X Masion" Created by JAY TASKA Valued at 358k.
K, Now when it loads up, the money left over will dissapear and you'll have zero similions. But the house is still valued at $358k.
Now go into Live mode, and the achievement may pop. If not go back into Build mode and Pick up and place an object of value. Now go back into Live mode and the achievement should pop.
Happy Simming :D