The SFH boom is over. The next housing boom is multi-unit "affordable housing" in cities. My city recently passed sweeping zoning changes that will allow duplex, triplex and even quadplex units to be built on 1/4 and 1/3 acre lots, whether on vacant land or where existing SFH houses are. The only catch is that the lots can't be tied to existing HOAs and similar covenant restrictions already in effect. Buying vacant land in and around cities without HOA restrictions is the best "buy low" RE investment going forward. Land is relatively cheap but will become more valuable as the zoning changes take effect (here they take effect June 2023) and developers switch gears from SFH to multi-family units.