I am open to anything. I have just seen every 4 BD plus loft/5 BD home on the market . It’s not a lot of homes given I am only looking at a few areas. So I am looking at homes that are yet to be listed as well.
This sounds like my search many years ago.
Gonna be tough with the prices in Irvine.
This was one of the things I had talked about on many occasions on buying resale vs new. Because desired areas don't have lots of inventory, being able to take advantage of drops in market is not easy because the better homes won't have lower prices and you'll be competing with more people on those houses (which I assume is why you are asking about off-market houses).
You'll have to be open to settling for a sub-par location, condition or just getting lucky.
Finding homes in "original" (or classic) condition will help reduce the competing interest/bids and over time you can upgrade it to how you like (flooring, paint and kitchen/bath remodels are the main things).
Relatives of a friend of mine got really lucky finding a 3CWG garage home in a premium area in South Bay that happened to be upgraded and move-in ready. They had to pay over listing (and wrote a letter) but compared to other homes in the same area they got a really good deal... the house should have probably been listed for $200k more.
Since TI isn't as real estate active as it used to be, not sure how much traction this thread will get you but maybe hit up some of the area specialists or get one of the TI realtors to help. Redfin really leveled the access to MLS but there are still pocket listings or not on the market homes that maybe a good realtor can help you access.
Good luck... all the areas you are targeting have 3-car garages so you should try to include those.
