Usually at my friends' (a married couple) house, sometimes one of them are the DM, sometimes another of us in the group is. The last year plus face to face campaign I ran was at their house. They have a young kid (kindergartner) and we play in their first floor or basement after the kid is down for the night upstairs.
They had 5e books there and a deep set of minis so when I was DMing I'd only bring the module I was running, my notes, and sometimes a specific battlemat or printed out map (and snacks

). In the pathfinder 1e era before they got their reaper minis when I was DMing I would also bring custom counters I made myself from internet image searches pasted into word documents for printing and then cutting out with scissors, about one page of specifically anticipated stuff for each weekly game. Sometimes a specific bestiary or d20 monster book for something I planned to use, but often just copied over stats from the PFSRD for easy portability to run encounters at the table. Once the 4e Monster Vault came out with its counters I got that and used those as minis for a lot of stuff.
In college I played in a group that met at a reserved room on campus or sometimes at people's homes. My Ravenloft campaign I ran was in my apartment which I shared with two of the players in the campaign.
As a kid I would haul around my AD&D PH, DMG, MM, and the module if I was DMing at a friend's house but I would host a bunch as well.
Not disturbing my wife and son in our townhouse is a big consideration for me not regularly hosting anymore. Also the limited parking in my townhouse community, I only have two spots and it is blocks away for the nearest street parking.
The last time I DM'd in my house it was games for my son and visiting family, sometime in the relatively early 5e era (sometime after Tales of the Yawning Portal came out).