Project NameBlue Magnolia, Hobart, by MG Architecture and Interiors
Photographer DetailsThomas Ryan
Blue Magnolia is a rare remaining example of an 1840’s row house in urban Hobart. It is a historic example of early configurations in Tasmanian architecture, demonstrating an internal building fabric that is separated into two dwellings.
The small footprint of the contemporary addition takes up almost the same footprint as the demolished lean-to addition of a previous upgrade. All the materials from the brick lean-to were salvaged or designated for recycling for other projects.
70-80% of materials for the addition were timber, including framing, plywood lining, and external cladding.
MG Architecture and Interiors were the project Architects, with JSA Engineers providing consulting, and Merlin Construction as builders.
After a previous refurbishment collaboration in 2010, MG Architecture and their clients Frank and Eve set about revitalising a small 1840’s stone cottage in central Hobart. MG set about removing immaterial structure from the original building before restoring and upgrading the historic cottage. The addition of modern amenities was a core focus of the renovation.
Structural timber used for the upgrade were LVL or hardwood 90 x 35 studs. Thermal performance was assured by heavily insulating the walls and roof with gold batts, along with a roof blanket in the ceiling space. Passive solar principles were employed, such as the north facing concrete floor in the kitchen and dining which regulates internal temperatures.
Timber was chosen for its ease of removal. Given the sensitive nature of a historic project, it was important that the addition include ease of removal for future uses.
Solid Tasmanian oak tongue and groove shiplap timber was used for the exterior cladding, along with design pine for the decking. The exterior cladding was finished with a dark stain. The cladding extends to the door, which is lined in the same boards.
An excellently crafted cutout in the buildings facade forms a bench seat that interacts with the garden.
Timber was chosen for its sympathy to heritage projects, it’s ease of construction, along with it’s portability. The site had only a 1 metre entry point for brining in materials.
One of the key design aims of the restoration was to accentuate the original materials, consisting mainly of stone and timber. The detailing of the contemporary additions was shaped to enhance the ageing bones of the structure.
Skylights were an important solution to bringing light into the dimly lit cottage. Double glazing was used for the skylights over the bathroom and stair. Generous openings were included to bathe the stone interior with natural light, exploiting the bountiful thermal mass, particularly in the north facing kitchen and dining areas. Original openings have been lined with ply to modernise them. Stone salvaged from new openings was used to repair the external stone retaining wall.
MG references the original building layout, which included two staircases up to the different dwellings. The stairwells, long since removed, have been referenced with voids.
Internal lining is Tasmanian oak boards, along with plywood lining for the openings.