Now well-monetarily supplied, Spark felt confident that he could start a business of his own, and be the better for it. He also decided that he would go from Europe and try his luck as a free settler of Australia, which had been founded less than fifty years before. After being granted a
letter of recommendation as a free settler, Spark voyaged on the
Princess Charlotte to arrive in Sydney in April 1823. After arriving, Alexander set up a shop in
George Street, where he sold sugar,
wines and alcohol and various
drapery. Spark also supplied salted meat to the
commissariat at Sydney and
Parramatta at the time. By 1825, Spark's trading business had greatly expanded, and he was chartering ships to coastal
trade routes. A year later, his business had grown even more, and he started a shipping agency. Through this agency, Spark sold incoming cargoes, exporting stores to places such as
Hobart, colonial produce to
Calcutta, and
wool consignments (the first of what would be very many wool consignments) to London, backloading merchandise when it was possible. Additionally, Spark worked as a sort of agent for farmers and country settlers by purchasing their produce and selling them supplies such as livestock and stores, as well as the occasional ploughman or overseer. At this particular time, Spark owned more than six thousand acres (24 km2) of land on the
Hunter River and a nine-acre (4 hectare) grant at
Woolloomooloo; Spark had developed a passion for land ownership. In 1835, the designer
John Verge (who also built
Elizabeth Bay House) helped Spark complete his property, now named Tusculum outside of Woolloomooloo Hill (now known as Potts Point). It now houses the
Royal Australian Institute of Architects. Despite the great success of his business, Spark engaged in and did a great many things in and around Sydney. He served on the Sydney Grand Jury, became its foreman in 1826 and, in 1827, a justice of the peace. Spark engaged in the committee of the Agricultural Society and the Chamber of Commerce, as well as supplying support and sometimes finances to causes such as those of
Scots Church, the Benevolent Society and the Female School of Industry. Additionally, despite two failed attempts at becoming a director of the Bank of New South Wales, he was able to join the first board of the
Bank of Australia, also in 1826. He later became the board's managing director in 1832. By this time, business for Spark had increased (especially in the wool industry), and continued to increase over the next few years. While continuing his prior engagements, Spark began work on designing himself a house, where he planted a
vineyard and an
orchard, being the treasurer of Australian Gaslight Co. and director of at least two insurance companies, as well as being an active investor in several
steam navigation companies. ; Spark's residence With all of his business-related and social partakings and engagements, Spark's new home, after it had been designed and built, became something of a rendezvous for many of the people he was associated with – bankers, merchants, landowners and
magistrates he met on his regular visits to the Hunter River region. During this time, Spark had begun to become somewhat perturbed by the divisions between the Presbyterians in Sydney, and decided to turn to the
Church of England. He became involved in his new faith, and was involved in and supported the construction of
St Peters Church, St Peters, which was consecrated in 1839. 1839 was a busy year for Spark – he entertained over 800 visitors at his house in
Tempe, and became involved in yet more enterprises including becoming vice-president of Commercial Banking Co. of Sydney, becoming an agent of the South Australian Co. and becoming director of Australian Loan Co. Spark also extended his land dealing to the regions of Melbourne and Victoria, as well as becoming agent for some twenty-two ships. He was part owner of a number of ships himself. == Later life and death ==