I’ll help bring the average down. I’m not sure of the square footage though – maybe 1800-2000?
Four bedrooms, 2.5 baths, finished basement (with a kitchen even), double garage, first floor laundry, deck, new siding, triple-pane windows, enclosed front porch, 100x200 lot that backs on to fields – 65K in 2003.
But it’s in Iowa. 
I don’t own a house.
In Spain, most people (it’s changing now) live on flats, not individual housing. The individual houses that are springing up all over the country tend to be attached in rows.
All prices refer to a small town in Spain (35K people, not a provincial capital).
Mom’s place: bought second-hand in 1980, 1200sqft plus a 500sqft terrace attic, greatest views in town. Cost (takes out calculator) 24,000 USD using current exchange rates. A lower flat in the same building (no terrace and no views) recently sold for some 120,000 USD.
Bro’s old place: bought nth-hand in 2000, 900sqft. Cost 33,500 USD. Sold last July for 42,000 USD.
Bro’s new place: bought while being built, they got the keys in July. 1200sqft attic in two levels, add to that some 400sqft in two terraces. Far from stores and from the center of town (which in Spain is the main commercial area). Cost 106,000 USD.
Other bro’s place: being built, he should get the keys next July. 900sqft. Cost 101,000 USD.
Any of those would get multiplied times five or ten if they were in Madrid or Barcelona, depending on the part of town and age of building.
Finally someone I can somewhat relate to. A lot of you people buy houses for what is essentially car money over here. 
We live in a second story apartment in Amsterdam, outside the center but within the “ring” motorway around the city.
It’s a 1934 building in reasonable shape. The apartment is 65 square meters, which is 700 square foot apparently. Two bedrooms (one used as a study), one bathroom, small storage room on the top floor of the house. No garden, small balcony. Parking on public roads.
I bought the apartment in 1998 for about $161,000. Today, it is worth about $235,000.
shakes head at some of these prices, but remembers the build quality of a lot of American homes as well 
Casa d Cats is halfway between York and Gettysburg, PA-the epicenter of bohunk. Roughly 1200 SF 3 BR 1 B with a full walk out basement on a little over an acre of well treed woods.
$67K 10 years ago, recent county appraisal values it at $91K. Cats not included.
Mine’s a 525 square foot apartment, 40 miles from central London and therefore relatively cheap. It’s worth about £120,000, which is about $205,000. In 1995 it cost £50,000, which I guess was about $75,000 at the time.