You're right, the solution has been fixed as of this April (which I didn't realize until I went looking - thank you!) But up until then, Lexington had a huge housing shortage and skyrocketing prices, with strictly enforced zoning which basically banned all new housing construction. Teachers in the local schools were looking at a housing situation where prices started at around 30x their annual salaries.

https://www.bostonglobe.com/2023/04/13/business/with-high-co...