In 1848, what remained of Section 801 was sold to Philcox's friend George Morphett, who later surveyed more allotments, and others added blocks adjacent to the town.

[5] In December 1846 the Clarendon vineyards were developed on land purchased by English benefactor William Augustine Leigh (1802–1873),[6] one of many parcels of land bought through his agent Sir John Morphett (including two town acres[7] between Currie and Hindley streets in the city blocks, hence the naming of Leigh Street).

[5] Edward Peake bought the winery from Leigh, built the first cottage on the site, and sold it to Joseph Gillard, who owned it for 40 years, selling most of the wine to Penfolds.

[8] By 1866 the town was described as a regional centre "in the midst of a fine agricultural district, where wheat, peas, and potatoes are largely grown".

[5] The Clarendon area, Coromandel Valley and Kangarilla focused on orchards, market gardens and timber production in the early years, but after revised farming practices were introduced after the 1860s, vineyards were planted at Clarendon and other areas, and many wineries began producing and exporting wine.