Originally built as the vicarage for St. Thomas Church around or just after what was then the New Road or King William Road (todays St. Thomas Road) was cut in 1840, by 1856 Priory House was being used for the purposes of a boarding school operated by Samuel Hicks.
1859: Hicks, Samuel, school principal, Priory House, New North Road.
Advertisement; 1859 Post & News: Priory House, St Thomas New Road, Launceston.
Classical, Mathematical & Commercial Boarding & Day School.
The duties of this School will be resumed on Tuesday 18th January, 1859.
Prospectuses and References may be obtained on application to Mr Arthur.
The house was sold off on April 14th, 1870, being purchased by the Werrington Estate.
Priory House: Sale of Superior Drawing, Dining, & Bed-room Furniture, Carpets &c. &c.
Wise & Short have been favoured with instructions to Sell by Public Auction, on Thursday, the 14th Day of April, 1870, at 12 o’clock for 1 o’clock precisely, at the Priory House, New North Road, St Thomas, Launceston, the whole of this very superior modern Household FURNITURE & EFFECTS, the property of Dr Farwell, who is about to leave the neighbourhood. The house, Garden & Premises to be Let, with possession immediately after the Sale. Apply to Messrs Gurney, Cowlard & Cowlard, Launceston.
Priory House was then sold by the representatives of Colonel Deakin of Werrington Park (deceased), on Tuesday 29th August, 1880. Dr. Wilson, the tenant (rent £45) bid £690 for the property but it was knocked down to Mr. James Treleaven for a little more. By 1887 it is again being used as a school with its principal being Mr. G. Arthur.
Advertisements of 1887:
Priory House, St Thomas Road. Classical, Mathematical & Commercial Academy: principal – Mr G Arthur. (December 18th).
The property later came into the ownership of the following:
Thomas Henry Nicolls, Priory House – 1914 (ex No.5 Southgate St.).
William Barriball, Priory House – 1923
Charles Gordon Gibson, MD., Priory House – 1930-35 (ex North Hall, Dunheved Rd. 1926).
Douglas Hugh Aird Galbraith, MD., Priory House – 1956/7 (practice at Southgate Surgery).