Are you looking only in Ladera Ranch or will you consider other cities as well?
Currently there are no SFR (single family residential) detached homes available in your price range in Ladera.
However, there are two properties available, both are detached condo's.
One is a 2 bedroom, 3 bath home with 1400sq' and it's on the market for $310,000.
Then there is a 3 bedroom, 4 bath home with 1700sq' on the market for $440,000.
If you would consider Mission Viejo, there are 4 SFR/Detached properties currently on the market priced from $364,900 - #399,900. There are three 2 bedrooms and one with 3 bedroom.
If you would like me to send you these properties, I'd be happy to - email me at: email@example.com.