Kailua homebuyers are working with a $1,100,000 median price point, 162% above the national figure. Against the $115,000 median household income in the area, that's a 9.6x multiple.
Factor in $248/month for property tax in Kailua, based on the area's 0.27% effective rate applied to the median home price. That's $2,970 annually.
Hawaii levies a state income tax on top of the $6,380/month this mortgage runs. Model your real after-tax take-home before deciding how much payment you can carry.
Kailua's cost of living index is 195, above the 100 national baseline. That's on top of the housing numbers above, not instead of them.
Kailua's median home price runs 26% higher than nearby Honolulu: $870,000 there versus $1,100,000 here.