Both areas share a similar housing stock: character bungalows and one and a half storey homes built mid century, narrower lots than the newer suburbs, and mature tree cover that buyers specifically look for. Lane access is common through both neighbourhoods, so a detached garage off the back rather than an attached front garage is the norm.
What separates a strong sale from a soft one in either neighbourhood is usually the basement and the big mechanical systems, because a house built in the 1950s or 60s is now old enough that furnace, shingles, windows and electrical panel are frequently due for replacement, and a buyer factors the cost of all four into their offer whether or not the seller mentions it.
With 446 sales citywide and demand running 6.6 percent above the ten year average, a correctly priced house in either area does not sit long. Joel Dyck prices Caswell Hill and Mayfair listings from actual sold comparables in those two neighbourhoods rather than a citywide average. Get your hand-reviewed valuation from Joel Dyck.