How about University Park area??--Specifically the neighborhood near Michelson Dr & Jordan Ave. The Google satellite images of the clustered duplex homes with a large central park and paseo fit the bill. The close proximity to the 405 would certainly lower property values in the area and it's close enough to Turtle Rock for high contrast of property values.
<a href="http://maps.google.com/maps?f=q&source=s_q&hl=en&geocode;=&q=Michelson+Dr+&+Jordan+Ave+Irvine,+ca&sll=33.661184,-117.803564&sspn=0.003983,0.006899&ie=UTF8&ll=33.661978,-117.80483&spn=0.007965,0.013797&t=h&z=16&iwloc=A">http://maps.google.com/maps?f=q&source=s_q&hl=en&geocode;=&q=Michelson+Dr+&+Jordan+Ave+Irvine,+ca&sll=33.661184,-117.803564&sspn=0.003983,0.006899&ie=UTF8&ll=33.661978,-117.80483&spn=0.007965,0.013797&t=h&z=16&iwloc=A</a>