Share housing is how a huge chunk of Australians live, especially in the major cities. The latest Census data shows that roughly 1 in 4 renters in Sydney and Melbourne are in some form of shared accommodation. Yet the legal framework for share housing is confusing, poorly understood, and full of gaps that leave tenants vulnerable.

I’ve seen people lose bonds they were entitled to, get kicked out with no notice, and pay rent for rooms they couldn’t access — all because they didn’t understand how their tenancy was structured. So let me break this down.

The Three Types of Share House Arrangements

Your legal rights depend entirely on which of these categories you fall into:

1. Co-Tenants (All Names on the Lease)

If everyone in the house is named on the residential tenancy agreement, you’re all co-tenants. This is the strongest legal position for a share house occupant.

Your rights:

• Full protection under the Residential Tenancies Act in your state
• You can’t be evicted by other tenants (only the landlord can end the tenancy through proper legal process)
• You have a direct relationship with the landlord and can deal with them about repairs, bond, and other issues
• Your bond is lodged with the state bond authority

The catch: Joint and several liability. If one co-tenant doesn’t pay their share of the rent, the landlord can pursue any or all of the remaining co-tenants for the full amount. If one co-tenant causes damage, all co-tenants are liable. This is the biggest risk of co-tenancy.

2. Sub-Tenants (Renting from the Head Tenant)

If one person holds the lease (the head tenant) and you’re paying rent to them for a room, you’re a sub-tenant. This is extremely common but legally messy.

Your rights depend on your state:

In NSW, sub-tenants have some protections under the Residential Tenancies Act 2010, including the right to a written agreement and minimum notice periods. However, your landlord is effectively the head tenant, not the property owner. If the head tenant’s lease ends, your sub-tenancy typically ends too.

In Victoria, the Residential Tenancies Act 1997 provides sub-tenants with similar protections to head tenants, including notice requirements and the right to apply to VCAT. Victoria is probably the best state for sub-tenant protections.

In Queensland, sub-tenancy protections are weaker. The RTA has specific guidance for rooming accommodation which may apply depending on the arrangement.

3. Boarders and Lodgers (No Lease, No Sub-Lease)

If you’re paying someone to live in a room in their home (or a property they lease) without any formal agreement, you’re likely a boarder or lodger. This is the weakest legal position.

Your rights: Minimal. In most states, boarders and lodgers are excluded from the Residential Tenancies Act entirely. You’re governed by common law, which provides some protection against unreasonable eviction but far less than statutory tenancy rights.

In practice, this means the person you’re paying rent to can ask you to leave with minimal or no formal notice. Your bond (if you paid one) may not be lodged with the bond authority, making disputes harder to resolve.

The Risks Nobody Warns You About

Bond disputes in share houses are nightmares. If you’re a co-tenant and you move out before the lease ends, getting your portion of the bond back requires the cooperation of all parties — the remaining tenants, the landlord, and the bond authority. If the remaining tenants won’t sign a partial bond release, you may have to wait until the entire tenancy ends.

In practice, I’ve seen people wait years to get their bond back because the lease rolled over and the remaining tenants kept living there. The bond sits with the authority until either all parties agree to its release or a tribunal orders it.

Head tenants can charge whatever they want. There’s no legal requirement that a head tenant charges sub-tenants a “fair” share of the total rent. A head tenant paying $600/week for a three-bedroom house can legally charge a sub-tenant $350/week for one room, pocketing the difference. This isn’t necessarily exploitative — the head tenant bears the financial risk if a sub-tenant leaves — but it means you should always check what the total property rent is before committing.

You might not be covered by the lease. If you’re living in a property but not named on the lease or a sub-tenancy agreement, you may have no legal standing. If the landlord discovers unauthorised occupants, they can take action against the head tenant, which could result in everyone losing the property.

How to Protect Yourself

1. Get something in writing. Even if you’re a sub-tenant or boarder, a written agreement that specifies rent, notice period, bond amount, and included utilities gives you something to stand on if there’s a dispute. It doesn’t need to be a formal lease — a signed letter or even a clear email exchange is better than nothing.

2. Check the head lease allows sub-letting. Many residential leases require the landlord’s written consent for sub-tenants. If the head tenant is sub-letting without permission, the whole arrangement is on shaky ground.

3. Insist on a proper bond receipt. If you pay a bond, get a receipt. Better yet, insist the bond is lodged with the state bond authority (even for sub-tenancies, this is required in most states). This protects your money from disputes.

4. Take photos at move-in. Document the condition of your room and all shared areas when you move in. This is your protection against end-of-tenancy damage claims.

5. Know your state’s tenancy advisory service. Every state has a free tenancy advice line:

• NSW: Tenants’ Union of NSW — 1800 251 101
• VIC: Tenants Victoria — 03 9416 2577
• QLD: Tenants Queensland — 1300 744 263
• SA, WA, TAS, NT, ACT: Search for your state’s tenancy advisory service

The Bigger Picture

Share housing isn’t going away. With median rents in Sydney and Melbourne well above what a single income can support, sharing is an economic necessity for millions of Australians. The legal framework needs to catch up.

Some states are better than others. Victoria’s protections for sub-tenants are relatively strong. NSW has made improvements. But the gap between the legal protections available to share house tenants and those available to tenants in traditional rental arrangements remains significant.

Until that gap closes, the best protection is knowledge. Understand your arrangement, get it in writing, and know where to go for help if things go wrong.