[5] After qualifying he moved to the Belsize Park area of the Borough of Hampstead, starting a practice which would stretch over forty years.

In 1882, he purchased a house he had previously rented at 4 South Hill Park Road, and by the end of the year fifteen patients had been admitted to the Hampstead Home and Nursing Institute.

[6] From the outset "Heath" as he became known,[7] trained women to become district nurses, caring for the sick in their own homes on payment of a fee.

A move to larger premises at 3 & 4 Parliament Hill Road allowed patients to be surgically treated under the best conditions, instead of being operated on in their own homes.

[7] William Heath Strange died suddenly, on the evening of 28 February 1907, as he was retiring for the night at his family home of many years, 2 Belsize Avenue.