Tasmanian House: Difference between revisions

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{{Short description|Australian sustainable housing initiative and a series of prototype residences}}

[[File:Tasmanian House II natural materials interior.jpg|alt=Interior of Tasmanian House 2|thumb|Interior of Tasmanian House 2]]”’Tasmanian House”’ is an Australian sustainable housing initiative and a series of prototype residences built in [[Tasmania]] since 2020.<ref name=”:0″>{{Cite web |date=2021-09-07 |title=A sustainable design response to Australia’s housing crisis |url=https://inhabitat.com/a-sustainable-design-response-to-australias-housing-crisis/ |access-date=2025-10-21 |website=Inhabitat – Green Design, Innovation, Architecture, Green Building {{!}} Green design & innovation for a better world |language=en-US}}</ref><ref name=”:1″>{{Cite news |date=2025-04-12 |title=Architect uploads free plan for owner-builders to use |url=https://www.abc.net.au/news/2025-04-13/architect-releases-free-owner-build-plans-to-support-housing/104213884 |access-date=2025-10-21 |work=ABC News |language=en-AU}}</ref><ref name=”:2″>{{Cite web |last=Keighran |first=Mandi |date=2025-07-07 |title=Budget Breakdown: How an Architect Built a Family Home in Tasmania for $72K |url=https://www.dwell.com/article/budget-breakdown-tasmanian-house-3-jiri-lev-affordable-home-plans-australia-8da5d447 |access-date=2025-10-21 |website=Dwell}}</ref> The initiative’s contemporary [[Traditional architecture|traditional]] house designs, inspired by local [[Vernacular architecture|vernacular]] architecture, utilise local crafts and natural materials for aesthetic effect, economy and occupant health. The plans have been released as [[Open-source license|open source]] for unrestricted use, and adapted and utilised prolifically throughout [[Australia]] and elsewhere (exceeding 30,000 downloaded copies in 2025).

== Background ==

The initiative was conceived as a byproduct of own building projects by [[Jiri Lev|Tasmanian architect Jiri Lev]], when he released complete construction documentation free of charge into the public domain for unrestricted use. He said that “[traditional buildings’] economy, in the natural, evolutionary meaning of the word [means] obtaining best outcomes with minimum possible outlay of energy and resources. Like in nature, this fine-tuned balance usually also leads to aesthetically pleasing results.”<ref>{{Cite web |last=Williams |first=Steph |date=2024-09-01 |title=Tassie Architect Shares Affordable Living Design |url=https://thehobartmagazine.com.au/trippy-skippy-and-the-crop-circle-mystery/ |access-date=2025-10-22 |website=The Hobart / Launceston Magazine |language=en-AU}}</ref>

The project designs echo a time when neighbours worked together to build functional homes, strengthening community ties. Instead of focusing on innovation for its own sake, they bring back control, affordability, and sustainability to the process of homebuilding.<ref name=”:3″>{{Cite web |title=The Tasmanian House 3 |url=https://openhousehobart.org/buildings/the-tasmanian-house-3/ |access-date=2025-10-22 |website=Open House Hobart |language=en-US}}</ref>

== Design principles ==

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== Prototype houses ==

==== Tasmanian House 1 (2021) ====

[[File:Tasmanian House by Jiri Lev.jpg|alt=Tasmanian House 1|thumb|Tasmanian House 1]]The ”Tasmanian House” ”1” was conceived to address [[Australian property market|Australia’s housing crisis]] through a blend of traditional and modern approaches. Rooted in concept of locality, the design draws from Tasmanian [[Georgian architecture|Georgian]] [[Vernacular architecture|vernacular]] and prioritises the use of untreated, locally sourced materials such as native timbers and sheep wool insulation, avoiding paints and chemicals. Minimising synthetic materials to meet only basic building code requirements, the structure was designed to naturally decompose if stripped of furnishings. The initial cabin formed the first stage of a modular pavilion-style home that could function as one or two independent dwellings, connected by a glazed cloister.<ref>{{Cite web |date=2021-08-23 |title=Tasmanian House / Atelier Jiri Lev |url=https://www.archdaily.com/967211/tasmanian-house-atelier-jiri-lev |access-date=2025-10-21 |website=ArchDaily |language=en-US}}</ref><ref>{{Cite web |title=Atelier Jiri Lev, Sasha Lev · Tasmanian House |url=https://divisare.com/projects/447420-atelier-jiri-lev-sasha-lev-tasmanian-house |access-date=2025-10-21 |website=Divisare |language=en}}</ref><ref>{{Cite web |last=School |first=Harvard University Extension |title=Tasmanian House Shows How to ‘Make the Most Out of Quite Little’ |url=https://www.treehugger.com/tasmanian-house-australia-aterlier-lev-5198472 |access-date=2025-10-22 |website=Treehugger |language=en}}</ref>

”’Tasmanian House 2 (2023)”’

The ”Tasmanian House 2” (also referred to as “Tasmanian Homestead”) is a three‑bedroom, two‑bathroom, approximately 120 m² prototype home. It is engineered for affordability and ease of construction — capable of being built in around six months by an owner‑builder — and released as open‑source architectural plans.<ref name=”:1″ /><ref>{{Cite web |last= |first= |last2= |date=2024-05-19 |title=Tasmanian architect unveils DIY house, which can be built in six months for $150k |url=https://www.9news.com.au/national/tasmanian-architect-unveils-diy-house-which-can-be-built-in-six-months-for-150k/ef7ae68c-17c7-4928-8f7d-dafd98142100 |access-date=2025-10-21 |website=www.9news.com.au |language=en}}</ref> The design draws on [[Georgian era|Georgian‑period]] vernacular architecture and emphasises local materials and traditional building techniques, avoiding heavy reliance on synthetic membranes or modern fabrication, such as roof trusses, in favour of simpler construction methods compatible with single-person construction.

The ”Tasmanian House 2” (also referred to as “Tasmanian Homestead”) is a three‑bedroom, two‑bathroom, approximately 120 m² prototype home. It is engineered for affordability and ease of construction — capable of being built in around six months by owner‑builder — and released as open‑source architectural plans.<ref name=”:1″ /><ref>{{Cite web |last= |first= |last2= |date=2024-05-19 |title=Tasmanian architect unveils DIY house, which can be built in six months for $150k |url=https://www.9news.com.au/national/tasmanian-architect-unveils-diy-house-which-can-be-built-in-six-months-for-150k/ef7ae68c-17c7-4928-8f7d-dafd98142100 |access-date=2025-10-21 |website=www.9news.com.au |language=en}}</ref> The design draws on [[Georgian era|Georgian‑period]] vernacular architecture and emphasises local materials and traditional building techniques, avoiding heavy reliance on synthetic membranes or modern fabrication, such as roof trusses, in favour of simpler construction methods compatible with single-person construction.

”’Tasmanian House 3 (2025)”’

[[File:Tasmanian House III.jpg|alt=Tasmanian House 3|thumb|Tasmanian House 3]]

The ”Tasmanian House 3” (also known as the “Tasmanian Cottage”) is an affordable, owner‑built two‑bedroom cottage prototype. Designed as a sustainable and low‑cost dwelling, it was completed in 2025 by a single owner‑builder for around AUD $110,000 (USD$72,000, 2025) and completed in roughly five months, with minimal professional assistance. Emphasising community‑driven construction, the house uses local timber (including cedar beams and Tasmanian oak floors), pine lining, and three‑metre ceilings to create a light‑filled, warm interior in a traditionally inspired design. Free open‑source plans for the model are available, making it a replicable prototype for affordable, self‑built housing.<ref name=”:2″ />

== Gallery ==

Australian sustainable housing initiative and a series of prototype residences

Tasmanian House is an Australian sustainable housing initiative and a series of prototype residences built in Tasmania since 2020.^[1]^[2]^[3] The initiative’s contemporary traditional house designs, inspired by local vernacular architecture, utilise local crafts and natural materials for aesthetic effect, economy and occupant health. The plans have been released as open source for unrestricted use, and adapted and utilised prolifically throughout Australia and elsewhere (exceeding 30,000 downloaded copies in 2025).

The initiative was conceived as a byproduct of own building projects by Tasmanian architect Jiri Lev, when he released complete construction documentation free of charge into the public domain for unrestricted use. He said that “[traditional buildings’] economy, in the natural, evolutionary meaning of the word [means] obtaining best outcomes with minimum possible outlay of energy and resources. Like in nature, this fine-tuned balance usually also leads to aesthetically pleasing results.”^[4]

The designs exemplify a shared design philosophy of environmental sustainability, affordability, and regional vernacular architecture:^[6]^[7]

Use of Natural and Local Materials: All dwellings prominently feature locally sourced Tasmanian timbers such as macrocarpa pine and Tasmanian oak, as well as natural insulations like sheep wool. The designs avoid synthetic finishes, paints, and plastics wherever possible to reduce chemical exposure and environmental impact.
Emphasis on Affordability and Owner-Building: Each project is conceived to be economically accessible, with construction methods that allow for DIY or owner-builder execution. They prioritize simple construction techniques, modular components, and low-cost materials to demonstrate that well-designed homes can be built on modest budgets.
Health-Conscious Design: The designs place significant emphasis on occupant wellbeing. All designs incorporate breathable wall assemblies, natural finishes, and materials with low or no off-gassing, contributing to healthy indoor air quality, prevention of mould, with proven positive impact on medical conditions such as allergy, asthma.
Passive Environmental Design: The projects feature high thermal performance through passive solar orientation, insulation, cross-ventilation, and appropriate shading. These features reduce the need for mechanical heating and cooling, enhancing energy efficiency.
Architectural Simplicity and Vernacular Form: Inspired by Tasmania’s colonial-era architecture, the homes adopt simple, rectangular forms, hipped or gabled roofs, and restrained detailing. This minimalist aesthetic supports both material efficiency and ease of construction.
Replicability and Open-Source Ethos: The designs are intentionally made to be replicable, with some plans available open-source to encourage wider adoption, particularly in rural or underserved areas. This supports broader aims of housing equity and ecological responsibility.
Innovation and Invention: The designs introduced various innovations, such as convection doors, allowing warm or cool air to circulate passively between rooms while maintaining privacy and spatial separation, or simplified and concealed ventilation of construction cavities, utilising single piece of aluminium mesh, folded and guided to seal multiple openings at once, against ember attack and vermin.

Collectively the designs are considered ecologically sound, culturally grounded, and accessible to a wide demographic.

Tasmanian House 1 (2021)

[edit]

The Tasmanian House 1 was conceived to address Australia’s housing crisis through a blend of traditional and modern approaches. Rooted in concept of locality, the design draws from Tasmanian Georgian vernacular^[8] and prioritises the use of untreated, locally sourced materials such as native timbers and sheep wool insulation, avoiding paints and chemicals. Minimising synthetic materials to meet only basic building code requirements, the structure was designed to naturally decompose if stripped of furnishings. The initial cabin formed the first stage of a modular pavilion-style home that could function as one or two independent dwellings, connected by a glazed cloister.^[9]^[10]^[11]

Tasmanian House 2 (2023)

The Tasmanian House 2 (also referred to as “Tasmanian Homestead”) is a three‑bedroom, two‑bathroom, approximately 120 m² prototype home. It is engineered for affordability and ease of construction — capable of being built in around six months by a single owner‑builder — and released as open‑source architectural plans.^[2]^[12] The prototype was completed in 2023 for around AUD $150,000 (approximately 1/3 of an equivalent commercial project cost in 2023). The design draws on Georgian‑period vernacular architecture and emphasises local materials and traditional building techniques, avoiding heavy reliance on synthetic membranes or modern fabrication, such as roof trusses, in favour of simpler construction methods compatible with single-person construction.

Tasmanian House 3 (2025)

The Tasmanian House 3 (also known as the “Tasmanian Cottage”) is an affordable, owner‑built two‑bedroom cottage prototype. Designed as a sustainable and low‑cost dwelling, it was completed in 2025 by a single owner‑builder for around AUD $110,000 (USD$72,000, approximately 1/3 of an equivalent commercial project in 2025) and completed in roughly five months, with minimal professional assistance. Emphasising community‑driven construction, the house uses local timber (including cedar beams and Tasmanian oak floors), pine lining, and three‑metre ceilings to create a light‑filled, warm interior in a traditionally inspired design. Free open‑source plans for the model are available, making it a replicable prototype for affordable, self‑built housing.^[3]^[5]