[1] The Westcliffe community is characterized by significantly higher residential densities than other parts of Bells Corners.

The 1962 zoning by-law shows plans, of what would eventually be known as Westcliffe Estates, for single-family homes (R3) on urban lots (60 x 100).

By 1969, the layout for the northern section was rezoned: what would be Priam and Ariel, one side of Cymbeline and Oberon, and two small parcels on Tarquin, were designated single or double homes on smaller lots (R4); the remaining parts of Oberon and Cymbeline, Tybalt and Tarquin, garden homes and townhouses (R5).

Many of these semi-detached homes were celebrated, and marketed, as fine examples of mid-century modern residential design.

The new plan was designed on the 'neighbourhood unit' concept, based on the distance young children could be expected to walk to school, and with a centrally located park.

[11] In the following years more building gradually started with the townhouses on Forester and Sonnet (1978/79), Seyton and Lovell (1982) single-family homes on Tyrrell (1983), Eileen Tallman (1985), Harmer House (1986) and single-family homes on the west ridge of the community, Seyton, Florizel, Robina, Fagus (Stonepark) and Betula (Forestview) (1989).

The 1971 plan officially designated parkland, including the small parks at Priam, Florizel, and Betula (Forestview).

What would be Hammill, the school parking lot, Eileen Tallman, Harmer House and the corner of Tyrrell and Seyton were all rezoned R6 for apartments.

Terrace, Mill Hill, and Waterfall were changed to residential, R4, R5, and R1C to allow a mixed development, and Institutional for Robertson House.

Florizel, Robina, Betula, Fagus, and the western part of Seyton had already been zoned for mixed housing, ranging from R3 to R5.