1950s and 1960s bungalows and split-levels
Alta Vista is postwar Ottawa at its most typical, and the dates are firm. The area was annexed from Gloucester Township in 1950 and then filled in through the decade with named subdivisions including Faircrest Heights, Applewood Acres, Ridgemont and Elmvale Acres, followed by Urbandale Acres in the 1960s. That produces detached bungalows and split-levels with large footprints and long joist spans, floored with plywood subfloor nailed rather than glued to the joists. Seventy years on, those nailed connections are exactly where noise comes from: the panel is held down but was never drawn tight against a joist that was slightly out of plane, and decades of deflection have opened that gap. Post-2000 infill in the core of Alta Vista has been limited, so most houses are still the original build.