The historic preservation topic made me think of this:

Me:

Newest: Depends.  Part of my current home was built in 2000, but newest-start was 1988. 

Oldest: 1941.  Every room was finished to a different decade decor wise.  Bull nose orange peel drywall in some rooms, wood paneling and shag carpet in others. 

Newest: 2000
Oldest: 1984 (where I currently live)

My oldest house I've been in is 120 years old.

I grew up in it.

The other house which is my parents house is 1950.

Oldest was built sometime around 1930.

Newest was built in 1991.

I live in a house from 1943! It was constructed when the sourth part of Santiago are still in countryside.

At the first years the house was lighted by candles and by incandescent later. Would've been interesting to keep the incandescent bulbs. My house still have some lead tubes, fabric insulated wires and ceramic cable insulators, and still keek dome switches.

in may and october of 2018 and may of 2019 I stayed at a house of the 19th century in Valparaíso, specifically on the Artillery Hill. Almost all the anti-water ampoules were changed to led, cfl or halogen, but still I could see an old fluorescent luminaire, calculated from the 60s or 50s.

My apartment house i live in was build in around 1957 and is a classic Swedish post-war suburban type area. It's actually listed as a part of our historical heritage because it is so classic!