My half-acre lot on 19th was ten lots down from Maku'u.
(I'm looking at the official Tax Map right now: Zone 1, Section 5, Plat 21.)
Purchased it for $15k in 1990. The first time in my life that I purchased land. It had been the third lot I had inspected on that day, and I fell in love with it. Told the bulldozer operator to preserve as much of the original surface as possible, and to doze only the actual building sites and driveways.
The full-acre lots must have been farther mauka (mountain-side) - or are you referring to two side-by-side half-acre lots you own(ed)? If I recall correctly, 19th St. got pretty "gnarly" in that direction.
You still own it?
Regards,
Between Paradise and Kaloli. Aunt bought it in the 1950’s. 2 1 acre lots side by side. When she died it went to mother and then mother gave 1 lot to me and 1 to brother. They’re both still full of trees and orchids. I think she paid $1200 each for them.