Historical clue formulations

• What an apartment may be converted into — 2025-03-12
• Many a retirement residence — 2023-08-17
• Apartment you own — 2022-09-12
• Zillow listing — 2019-07-13
• Weeklong vacation rental, maybe — 2019-01-14
• Complex purchase, in brief — 2018-09-27
• Airbnb listing — 2017-10-13
• Alternative to a co-op — 2017-07-24
• House alternative — 2015-04-17
• Complex thing? — 2014-12-21
• Jersey Shore vacation option — 2014-01-04
• Apartment that's owned, not leased — 2009-04-13
• Individually owned apartment — 2008-01-02
• Complex unit — 2006-08-11
• Flat on the water, perhaps — 2006-06-08
• Complex unit — 2006-05-20
• Unit in a multiunit building — 2005-10-06
• Time-share unit, often — 2002-10-07
• Modern home — 2001-03-13
• Housing unit — 1998-09-15
• Individually owned apartment — 1997-10-27