One bed semi-basement mansion flat (owned) with small courtyard garden. 1989. The living room was massive (24' x 14') and we had the 'luxury' of a bathroom with big corner bath. The only bedroom, however, was just large enough for a double bed and nothing else. Put it on the market as soon as we knew we were expecting DS.
We completed on the sale (and purchase of a three bed Victorian terrace with three reception rooms, small conservatory plus garden) when DS was 6 weeks.