If a 1000 sq ft GLA house sold for $1.0 m, like $1,000 / sq ft, then GLA adjustment will be 10% ~ 30%, or $100~$300 /sq ft, like 1100 sq ft house should be sold $1.1~1.3 m assuming other characters are all the same.
If a 6000 sq ft lot house sold for $1.0 m, assume $600 K for the land and $400 for the building, like $100 / sq ft for the land, then site adjustment will be 10% ~ 20%, or $10~$20 /sq ft, like 7000 sq ft site house land portion will be $610 K~ $620 K assuming other characters are all the same.