Open Field Co-Living Homestead

Open Field Co-Living Homestead A residential homestead and community centre with a focus on regenerative agriculture, natural building & communal living.

Open Field Co-living's key aims are:
- Housing: providing sustainable, stable, long-term, socially connected rental housing to 10-15 residents amidst a vibrant community centred around a solar passive, hempcrete co-living house.
- Homesteading: actively practicing sustainable living through a focus on producing local, organic food based on permaculture and regenerative agriculture principles
- Hos

ting: sharing land, resources and knowledge with aligned individuals and groups through working bees, workshops and events

05/06/2026

Hey. Im back at Open Field!
Just popping on here to say hi, hopefully so I can share more soon.
Big love,
Nicola

Open home tomorrow!Grab your tickets!https://sustainablehouseday.com/homes/the-open-field-house/
15/05/2026

Open home tomorrow!

Grab your tickets!

https://sustainablehouseday.com/homes/the-open-field-house/

H**pcrete Co-living Passive House in Castlemaine Set on 10.3 acres (approx) in the peaceful surrounds of Muckleford, The Open Field House is a landmark 8-bedroom residence that redefines sustainable living. Designed to passive house standards, this extraordinary home combines architectural integrity...

Our hempcrete passive house will be open for afternoon talks and tours for Sustainable House Day on Sunday May 17th! In ...
08/05/2026

Our hempcrete passive house will be open for afternoon talks and tours for Sustainable House Day on Sunday May 17th! In Castlemaine, VIC, Australia.

Tour times are 1pm and 2:30pm.

Presented by owner and building designer Dan Prohaska

A $15 ticket gives you access to as many homes as you'd like to see on the day, so please also check out the other incredible homes that are open on the day.

So, come and have a squiz, and hear about how we designed for energy efficiency, co-living, universal accessibility, bushfire, flood and food resilience, as well as how we built our handcrafted feature-grade hempcrete walls.

H**pcrete Co-living Passive House in Castlemaine Set on 10.3 acres (approx) in the peaceful surrounds of Muckleford, The Open Field House is a landmark 8-bedroom residence that redefines sustainable living. Designed to passive house standards, this extraordinary home combines architectural integrity...

Monday night feast is on again!Inspired by our dear friend  who has been hosting Sunday Night Feasts at his home for wha...
07/05/2026

Monday night feast is on again!

Inspired by our dear friend who has been hosting Sunday Night Feasts at his home for what feels like forever,

We're giving it a Monday twist as we miss the Monday Night Soup that used to offer.

With everything going on in the world, I reckon it's the balm we need! Never a better time to build our local resilience by getting to know our neighbours, swapping stories and local food, and looking out for each other.

We will cook up a big batch of vegan soup and have some glutenous bread to share.

WHAT TO BRING:
- A plate of food to share if you have capacity (it can be super simple like cut up fruit, a loaf of bread or a bag of corn chips!) OR
- $5-$10 donation if you can offer it (this is entirely self-funded) OR
- Just come for a feed if you need, nothing expected in return

If you'd like to come over early and help cook, or you have ingredients to donate, that's also grand!

WHO:

All ages and kids super welcome. There are heaps of kids toys, a swingset and sandpit.

WHERE:

Open Field Coliving
27 Muckleford School Rd (Castlemaine) VIC on Djaara Country

The house and property are pram and wheelchair accessible.

Its a warm and cosy house, but we might light the firepit if the mood strikes too.

---

Dm if youre planning on coming as it helps to know numbers! Otherwise I might be left eating the same giant pot of soup for weeks!

On again this Monday!Please comment or dm us if youre coming, so we know how much soup to cook!
06/05/2026

On again this Monday!

Please comment or dm us if youre coming, so we know how much soup to cook!

Come and have a 'sticky beak' of our hempcrete passive house on Sustainable House Day on May 17th!Castlemaine, VIC, Aust...
20/04/2026

Come and have a 'sticky beak' of our hempcrete passive house on Sustainable House Day on May 17th!

Castlemaine, VIC, Australia. Djaara country.

Our beautiful home is sadly for sale:
26/01/2026

Our beautiful home is sadly for sale:

Architectural Sustainability Meets Lifestyle VersatilitySet on 10.3 acres (approx) in the peaceful surrounds of Muckleford, The Open Field House is a landmar...

๐…๐จ๐ซ ๐’๐š๐ฅ๐ž: ๐“๐ก๐ž ๐‚๐จ๐ฆ๐ฆ๐ฎ๐ง๐ข๐ญ๐ฒ ๐‡๐จ๐ฆ๐ž๐ฌ๐ญ๐ž๐š๐ ๐ƒ๐ซ๐ž๐š๐ฆ - ๐€ ๐“๐ฎ๐ซ๐ง ๐ค๐ž๐ฒ, ๐‡๐ž๐ฆ๐ฉ๐œ๐ซ๐ž๐ญ๐ž ๐๐š๐ฌ๐ฌ๐ข๐ฏ๐ž ๐‡๐จ๐ฎ๐ฌ๐ž ๐ข๐ง ๐‚๐š๐ฌ๐ญ๐ฅ๐ž๐ฆ๐š๐ข๐ง๐ž, ๐‚๐ž๐ง๐ญ๐ซ๐š๐ฅ ๐•๐ข๐œ๐ญ๐จ๐ซ๐ข๐šIf youโ€™ve ...
21/01/2026

๐…๐จ๐ซ ๐’๐š๐ฅ๐ž: ๐“๐ก๐ž ๐‚๐จ๐ฆ๐ฆ๐ฎ๐ง๐ข๐ญ๐ฒ ๐‡๐จ๐ฆ๐ž๐ฌ๐ญ๐ž๐š๐ ๐ƒ๐ซ๐ž๐š๐ฆ - ๐€ ๐“๐ฎ๐ซ๐ง ๐ค๐ž๐ฒ, ๐‡๐ž๐ฆ๐ฉ๐œ๐ซ๐ž๐ญ๐ž ๐๐š๐ฌ๐ฌ๐ข๐ฏ๐ž ๐‡๐จ๐ฎ๐ฌ๐ž ๐ข๐ง ๐‚๐š๐ฌ๐ญ๐ฅ๐ž๐ฆ๐š๐ข๐ง๐ž, ๐‚๐ž๐ง๐ญ๐ซ๐š๐ฅ ๐•๐ข๐œ๐ญ๐จ๐ซ๐ข๐š

If youโ€™ve been searching for a place where sustainability and community is built into the bones of the home, here it is. This house was designed from day one to support real shared living: privacy where you need it, connection over land and food, and infrastructure robust enough for climate instability and long-term cooperation.

This is a rare opportunity for a co-housing or co-living group of up to 15 people ready to step straight into a functioning, well-thought-out communal space on rich alluvial soils near Castlemaine.

๐Ÿ๐Ÿ• ๐Œ๐ฎ๐œ๐ค๐ฅ๐ž๐Ÿ๐จ๐ซ๐ ๐’๐œ๐ก๐จ๐จ๐ฅ ๐‘๐จ๐š๐, ๐Œ๐ฎ๐œ๐ค๐ฅ๐ž๐Ÿ๐จ๐ซ๐ ๐•๐ˆ๐‚
8-10 bedrooms, 2.5 bathrooms
10.3 acres (4.2 ha)

๐–๐ก๐ฒ ๐“๐ก๐ข๐ฌ ๐ˆ๐ฌ ๐๐ž๐ซ๐Ÿ๐ž๐œ๐ญ ๐Ÿ๐จ๐ซ ๐š ๐‚๐จ๐ก๐จ๐ฎ๐ฌ๐ข๐ง๐  / ๐‚๐จ๐ฅ๐ข๐ฏ๐ข๐ง๐  ๐‚๐จ๐ฆ๐ฆ๐ฎ๐ง๐ข๐ญ๐ฒ

๐๐ฎ๐ข๐ฅ๐ญ ๐Ÿ๐จ๐ซ ๐’๐ก๐š๐ซ๐ž๐ ๐‹๐ข๐ฏ๐ข๐ง๐ 
Originally designed as a co-living project, this house was intentionally created to support seamless shared living
Commercial style kitchen and huge dining living space for central gathering
Multiple wings are pre-plumbed for future kitchenette or bathroom conversion โ€” so itโ€™s ready to adapt for private and communal zones.
Acoustic design: sound-isolated rooms, strawboard ceilings, and clever ventilation mean thereโ€™s a good balance of privacy + togetherness.
Lockers at the entrance for personal items = smart storage for shared life.

๐’๐ฎ๐ฌ๐ญ๐š๐ข๐ง๐š๐›๐ข๐ฅ๐ข๐ญ๐ฒ ๐ˆ๐ฌ ๐๐ฎ๐ข๐ฅ๐ญ ๐ˆ๐ง
H**pcrete walls + high-grade insulation give real thermal mass and passive climate control.
Mechanical Ventilation with Heat Recovery (MVHR) ensures constant fresh, filtered air.
NatHERS rating: 8.2 stars (effectively 9.1 considering Airtightness/MHRV) โ€” placing it among the most energy-efficient homes in the country.
Designed to use only ~15% of the energy of a typical home.
Non-toxic finishes: reclaimed timber, low-VOC paints, natural materials = a healthy living environment.

๐’๐ž๐ฅ๐Ÿ-๐’๐ฎ๐Ÿ๐Ÿ๐ข๐œ๐ข๐ž๐ง๐œ๐ฒ & ๐‘๐ž๐ฌ๐ข๐ฅ๐ข๐ž๐ง๐œ๐ž
Huge water infrastructure: 30 million-litre dam, 200,000 L of rainwater storage.
Biological septic system that irrigates an orchard of ~60 fruit + nut trees.
3-phase power to the shed (15-amp provision) โ€” supports communal operations, retreat-style facilities, or small business.
Massive shed (11.8 ร— 36 m) โ€” great for workshops, storage, vehicles, or shared enterprise.
Bushfire, storm, and heatwave ready design: Non-flammable hempcrete walls and BAL-40 Rated Toughened Miglas Windows

๐ƒ๐ž๐ฌ๐ข๐ ๐ง๐ž๐ ๐Ÿ๐จ๐ซ ๐–๐ž๐ฅ๐ฅ๐›๐ž๐ข๐ง๐ 
Wheelchair / universal accessibility: wide doors, threshold-free bathrooms, ambulant design.
Sound-insulated rooms + communal layout fosters a calm, restful atmosphere.
Constant fresh air, stable humidity, comfortable temperatures, natural materials and mould preventing hempcrete.
Estimates from Passive house research suggest 6 less sick days per year compared to typical construction.
Lifestyle & Location
Backing onto Muckleford Bushland Reserve โ€” birdlife, nature, serenity.
Just a few minutesโ€™ drive to Castlemaine for amenities, but feels remote and peaceful.
Large property gives room for a productive homestead: orchard, garden, chickens, shared work / play spaces.
Built with resilience in mind: climate-conscious, low energy, durable materials, and designed for long-term cooperation.

๐–๐ก๐จ ๐–๐จ๐ฎ๐ฅ๐ ๐“๐ก๐ข๐ฌ ๐๐ž ๐ˆ๐๐ž๐š๐ฅ ๐…๐จ๐ซ
Cohousing / Coliving groups: People who want to share a sustainable, purpose-built home.
Multi-generational households: Families + individuals who want both privacy, connection, and ageing in place
Eco-conscious entrepreneurs: Retreat facilitators, wellness practitioners, or social enterprises could use the space.
Community builders: Anyone wanting to start or grow a shared-living experiment (or already has one and wants a ready-made base).
Permaculture and Regenerative Agriculture Practioners: Abundant infrastructure for market gardening, poultry keeping, or orcharding

If youโ€™re part of a cohousing group, or know people who are looking for a fully built, deeply sustainable community home, this could be it. Share this post, tag your co-housing friends, or DM us and we can connect you with the listing agent.

https://www.australiangeographic.com.au/.../finding.../

https://renew.org.au/.../on-the-drawing-board-hempcrete.../
https://www.realestate.com.au/property-house-vic-muckleford-149100028

Set on 10.3 acres (approx) in the peaceful surrounds of Muckleford, The Open Field House is a landmark 8-bedroom residence that redefines sustainable living. Designed to passive house standards, this extraordinary home combines architectural integrity, environmental consciousness, and lifestyle flex...

Address

Castlemaine, VIC
3450

Website

http://airbnb.com.au/h/openfieldcoliving, https://www.realestate.com.au/property-house

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