St Columba's Convent is a heritage-listed Roman Catholic former convent at 169 Cunningham Street, Dalby, Western Downs Region, Queensland, Australia. It was designed by George Bernard Roskell and built in 1913 by John Draney. It is also known as Iona. It was added to the Queensland Heritage Register on 9 December 2010.

History The former St Columba's Convent was built in 1913 for the Sisters of Mercy from a design by local architect George Bernard Roskell, to provide accommodation for the nuns and the boarding students in their care. At that time, the town of Dalby and its surrounding rural districts were experiencing economic growth. The Sisters of Mercy occupied the convent until 1990, after which it was purchased by the Dalby parish and used as a student hostel, before being leased as a youth and community centre.

Dalby evolved as part of the expansion of one of the most significant pastoral regions in Queensland, the Darling Downs. The township was first laid out by Surveyor Edward Orpen Moriarty in 1852. Due to an error in flood levels, Captain Samuel Augustus Perry, the Deputy Surveyor General of New South Wales resurveyed the township in 1853, naming it Dalby after a location on the Isle of Man. The Town Reserve was declared in the New South Wales Government Gazette in August 1855. Dalby soon had a range of government services, including a post office in August 1854, the declaration of the Dalby Police District in 1855, and the establishment of a National School in 1859. The first urban land sales were held in 1857 and the Town of Dalby was gazetted as a municipality on 29 August 1863. The extension of the Western railway line from Toowoomba to Dalby in 1868 led to a boom in the town which only diminished when the line was extended further west in 1877.

At the time of the appointment of James Quinn as the first Roman Catholic Bishop of Brisbane in 1861, the population of the Colony of Queensland was 30,059, of whom 7,696 (39%) were Catholics. The proportion of Catholics in the main towns of the Darling Downs was: 18% in Warwick, 22% in Toowoomba, 28% in Dalby and 32% in Drayton. Initially Catholic pastoral care in Dalby was irregular; visiting priests had to celebrate mass in local hotels like Josiah Milstead's Plough Inn Hotel from 1855. The first Catholic school in Dalby was established in 1864. Dalby's first Catholic church, St Joseph's was opened by Bishop Quinn in August 1866. In 1876 Quinn instructed Father Denis Byrne, curate of Dalby, to establish a convent in the town, using £400 that the Sisters of Mercy of All Hallows Convent in Brisbane had allocated for the purpose. The Sisters of Mercy, having initially travelled to Queensland with Bishop Quinn in 1860, were integral to the expansion of Catholic schools across the state.

A new commodious version of the Plough Inn Hotel, built in 1863, was sold as part of the estate of pastoralist CC Macdonald. A half share of the property - lots 14, 15 and 16 (originally lots 2, 3, and 4) of section 16 - was transferred to Bishop Quinn in 1876. A small group of Sisters of Mercy arrived in Dalby on 8 August the following year, from the Toowoomba convent established in 1873; and this new Plough Inn became the order's eleventh school in Queensland known as St Columba's. A new timber church designed by Toowoomba architect James Marks was opened in September 1886. By that time, Catholics comprised one third of the population of the Darling Downs.

Dalby's regional prosperity was spurred by a number of legislative processes aimed at rural development in the late 19th and early 20th centuries, including the creation of smaller land holdings and the construction of new railways. The Bell branch railway opened in 1906, followed by the Glenmorgan railway line to Tara in 1908. Dairying and wheat cultivation expanded. A butter factory and a flour mill were established in Dalby in 1906, while the wool industry continued to underpin the rural economy of the area. Despite the dramatic effects of the Federation drought which peaked in 1902, the market for cattle improved in the 1910s, while the price of wool more than doubled between 1900 and 1915.

The growth of the area and the general expansion of the network of boarding schools led to the planning of a new, purpose-built Catholic convent for Dalby. In 1910, 3? acres (1.4 ha) on the corner of Cunningham and Edward Streets were transferred to the Catholic Church. The Roman Catholic Bishop of Rockhampton, James Duhig came in November 1910 to lay the foundation stone of the convent there. In November 1911 local architect George Bernard Roskell called for tenders for its construction. Born in India, Roskell migrated to Sydney in 1881, having previously been articled to E. W. Pugin in Dublin. (Pugin and his father Augustus Pugin were responsible for the design of a large number of Gothic Revival ecclesiastical buildings in Britain and Western Europe.) In Sydney, Roskell worked in partnership with John Bede Barlow between 1885 and 1891. (The 1887 Church of St Canice in Rushcutters Bay and the 1889 St Francis of Assisi Church in Paddington, designed by the practice are both on the Sydney Local Heritage Register.) Roskell then went to New Zealand, working for two firms known for their ecclesiastical projects. He relocated to Queensland as an employee of the Department of Public Works in 1907. Living in Dalby from 1909, he worked as clerk of the Dalby Town Council and also ran an architectural practice responsible for the Dalby National Bank (1910), the Dalby Hospital (1914) and the Wambo Shire Council offices (1916).

St Columba's Convent was opened by the recently appointed coadjutor, Archbishop Duhig, on 8 June 1913, the eve of the feast day of St Columba of Iona. (St Columba had been exiled to this island off Scotland in 563 and later established his ministry there.) A crowd of around 500 visitors attended the ceremony. Father Nolan, the Parish Priest indicated that the convent had cost £7,267 and he needed a further £2,600 to clear the debt. A collection was then taken up, which yielded around £1,600. Speakers praised the efforts of the builder, John Draney and the Clerk of Works, Michael Kelly, as well as the fund raising efforts of the ladies committee. It was expected that subsequent fund raising would focus on building a new church and presbytery for Father Nolan. Michael Kelly departed Dalby the following week to take up the position of Clerk of Works for St Brigid's Church at Red Hill, Brisbane.

The Dalby Herald described the new convent as Gothic in style, standing on a large site, on solid foundations four feet deep, reinforced with rolled joists, bolted together under all the walls of the structure, creating a singular solid frame. Entry to the property was through ornamental iron gates composed of crosses with the name St Columba's Convent emblazoned on them in brass. A gravelled path led to the central main entrance, which had a simple gabled portico again lettered with the name of St Columba's. The front verandah featured sections of cast iron balustrade and all were ten feet wide. Flooring throughout was crow's ash.

The convent's entry doors opened to a hall, flanked on each side by reception rooms, with passageways leading to both wings. To the right was a boarders' study which was separated by high folding doors from a boarders' refectory. Three French doors led to the western verandah, along which were located four music rooms. A nearby staircase led up to the boarders' dormitory. Directly behind the entrance lobby was the nuns' refectory, which included a fireplace and mantle. To the left of the entrance lobby, a grand timber staircase with turned silky oak balustrade ascended to the upper floor. Beyond the staircase was the chapel. The sanctuary was lit by arched stained glass windows illuminating the altar. A soft shade of green was used in the glass and in the interior paint scheme. The altar, which no longer remains, was designed and built by Trittons Furniture in Brisbane, donated by Mother Patrick of All Hallows in Brisbane and made as a copy of its altar.

The first floor boarders' dormitory occupied the entire western wing and had high coved ceilings. A lavatory and bathroom, with enamelled baths and showers adjoined the dormitory at the rear of the building. The dormitory opened onto front, rear and side verandahs. A corridor led from the boarders' dormitory to an infirmary for smaller children, which had a fireplace. Six nuns' cells , painted in French grey were also located here. The upper floor of the eastern wing housed three more cells and a large community room, the nun's bathrooms and toilets, and linen room. Water was supplied from a bore and from four 2 000 gallon tanks and three smaller rainwater tanks. The convent was one of the earliest buildings in Dalby to have a septic system, the local firm Downs Plumbing and Manufacturing supplying and executing all the plumbing work. Pressed metal ceilings were by Extons.

Ongoing development of Catholic facilities in Dalby included a locally designed school (1916) to the rear of the convent towards Jimbour Street, and a new church (1921) a block to the north-east on Cunningham Street and an adjacent presbytery (1930), both designed by Sydney architects Hennessy and Hennessy. Also in Cunningham Street, St John's Church of England, designed by Toowoomba architect Harry Marks, opened in 1935.

Father Nolan was honoured by the Pope in November 1930 and invested as a Monsignor in St Joseph's Church, when he was praised for the beautiful church buildings erected in Dalby - the convent, church and school. Within the Parish of Dalby, Nolan was responsible for the construction of new churches in Bell (1912), Warra (1913) and Jandowae (1917), Catholic communities which all would have sent children to school in Dalby. In 1930 and 1932 two further churches - at Cecil Plains and Kaimkillenbun respectively - were opened, both under his direction. The well-respected Nolan remained in the parish until his death in 1950. His church building scheme formed part of Duhig's overall program, which produced over 400 buildings in Queensland, including religious, educational and charitable institutions and hospitals.

The chief towns of the Darling Downs - namely Toowoomba, Warwick and Stanthorpe - became, along with Dalby, centres of education with the establishment of a number of day and boarding schools by different Christian denominations. With regards Catholic convents predating St Columba's, of the four built only the Sisters of Mercy Convent of the Assumption built in 1893–94 in Warwick still exists. Around the time of the construction of the convent at Dalby, other Christian boarding schools were established in Toowoomba and Warwick but were not overseen by an order of nuns or brothers. These generally remain in operation with early buildings often having become part of co-educational colleges formed through a process of school amalgamation, such as in Warwick where the Presbyterian Ladies' College (1918) and Scots College for boys (1919) merged in 1970 and now operate as Scots PGC College over two campuses. A brick and timber convent built in Goondiwindi in 1911 and similar in scale to that at Dalby has been demolished. A number of smaller convents and schools were established on the Downs after 1913, including at Allora, Clifton, Crows Nest, Oakey, Miles, Chinchilla and Yarraman. Of these only the Sisters of the Good Samaritan convents at Clifton (1917) and Yarraman (1946) are known to remain, while a number of the schools continue in operation.