South Scottsdale is 1950s and 60s ranch: block walls, steel windows in places, and doors that have been moving with the slab for sixty years. McCormick Ranch and Gainey are 1970s and 80s, which is where sliding door rollers, fence posts and shower grout all come due at once. North of the 101 the homes are newer and the HOA rules are stricter, so exterior paint and gate hardware get matched to the approved palette rather than to whatever the store had on the shelf.