In the 1910s Australian and North American architecture became more aligned when the English-born architect and designer James Peddle arrived in Pasadena.

The minutes of the meeting of The Institute of Architects of New South Wales for 1912 records that “We are pleased that Mr. Jack Hennessy and Mr. Carlyle Greenwell have returned and intend to remain among us”.

Malvern hill is a residential estate of mainly Federation and early Interwar houses, with a defined shopping street called The Strand.

The residential and retail precincts of the estate represent an almost intact example of the town planning and architectural trends of the early twentieth century.

The Strand shopping strip, which was developed between 1913 and 1920, was a dominant feature of the new model suburb of Malvern Hill and contributes greatly to the federation character of the area.

It was designed to provide a broad and elegant transition between the railway station at Croydon and the salubrious residential streets of Malvern Hill.

15 Malvern Avenue[6] was designed by Kent, Budden & Greenwell for geologist and educator Adolph Carl von de Heyde Süssmilch (1875-1946)[7] in 1912, making it one of the earliest Californian Bungalows built in Sydney.

[8] Greenwell was the project architect for two other houses on the estate: 32 Malvern Crescent, and Toorak at 29 Chelmsford Avenue[9] both showing his distinctive rough-cast stucco columns.

[11] After the heritage delisting by Ku-ring-gai Council of Wintergarden, a five-bedroom home built in 1913 at 21 Lorne Avenue Killara for his brother, this building was demolished in 2015.

[18] In 1926 a department store Murrays Limited[19] was designed by Greenwell and his newly graduated architectural assistant Malcom Moir.

This historic horse breeding stud and its rustic style homestead in roughly hewn stone and roofed in corrugated iron still stands but is under threat from the Bylong Coal project.

The arches with twisted columns surmount the dais, in which the pulpit and reading desk stands with a communion table, on to which the light from two hidden amber windows streams.

[27] At the age of 53, Greenwell married Sibyl Enid Vera Munro Morrison, a divorcee who was the first female practising barrister in New South Wales, at St Stephen's Presbyterian Church on 16 March 1937.

[30] A substantial bequest to the Art Gallery of NSW included works by George Lambert, Sydney Long, Kenneth McQueen and John Passmore.