What do you consider a big lot for new construction in Irvine?

[irvinehomeowner]

It would be interesting to look at a Redfin listing for one of these new IP homes and see under lot size: "Smell your neighbor's fart".

 

[O Hills]

Floor Area Ratio=footage/lot size.
1% FAR is generous size lot
35% FAR is big size lot
45% FAR is average size lot
55% FAR is substandard lot
65% FAR is when the builder knows you are stupid
75% FAR is when you could smell your neighbors fart
100% FAR is when the builder is laughing all the way to the bank
100% FAR is when your coffin is the same size as your plot.

Fixed that for you.
It's heads, builder wins; tails buyer loses.
If you get a big lot, you either paid a premium or got a less desirable location.
Nothing is free.