Meta description: Unit rents are growing 7.7% versus 6.8% for houses. Discover why Melbourne investors are turning to co-living, rooming houses and dual living.
URL slug: unit-rents-beating-houses-density-investing-2026
Recommended publish time: Tuesday, 25 August 2026 at 7:00 am AEST, targeting Melbourne investors during the morning property research window. Share again on Thursday at 6:30 pm AEST.
Article outline
- What the 7.7% versus 6.8% data really means
- The “House Bias” trap
- Seven reasons density investing is gaining ground
- Co-living, rooming houses and dual living: pros and cons
- The DENSITY Scorecard for Melbourne investors
- Legal and cash flow checks
- How AZ Property Solutions can help
Melbourne property investors need to stop asking one simple question:
“Is this a house or a unit?”
The better question is:
“How many useful income streams can this property create?”
That change in thinking matters in 2026.
National asking rents are up 7.2% year-on-year. Unit rents are up 7.7%. House rents are up 6.8%.
At the same time, the national vacancy rate remains critically tight at 1.3%.
This does not mean every unit is a better investment than every house.
It means demand is shifting towards smaller, more affordable and better-located living spaces.
That is why density strategies such as co-living, rooming houses and dual living deserve serious attention from Melbourne investors.
The data says affordability is winning
The latest SQM Research rental data shows a clear split.
- National vacancy rate: 1.3%
- National asking rent growth: 7.2%
- Unit asking rent growth: 7.7%
- House asking rent growth: 6.8%
Units still have a lower average weekly rent than houses.
That is the point.
Tenants are under pressure. Many cannot afford a large family home. They are choosing units, private rooms and smaller self-contained spaces instead.
The strongest demand is not always for the biggest property.
It is for the property that offers the right balance of price, privacy, location and convenience.
SQM Research managing director Louis Christopher said the national vacancy rate holding at 1.3% suggests “some stabilisation in rental availability”, although the underlying market remains tight.
That is an important warning.
The rental crisis may be easing slightly in some locations. It is not over.
The “House Bias” is costing investors income
The House Bias is the belief that a large detached home is automatically the safest property investment.
It feels safe.
You have one tenant, one lease and one familiar property type.
But familiar does not always mean efficient.
A standard four-bedroom house may produce one rental income stream. The same land, if legally and thoughtfully designed, may support:
- Two separate rental zones
- Multiple private rooms
- A second living area
- Two self-contained dwellings
- Three independent keys under one roof
This is where density investors gain an edge.
They are not simply buying more bedrooms.
They are buying more ways to use the same land.
Seven reasons density investors are gaining ground
1. Units are meeting the affordability gap
Unit rents are growing faster than house rents because more tenants can afford them.
This is especially relevant in Melbourne, where the latest combined asking rent is about $695 per week and vacancy is around 1.7%.
Melbourne is easing slightly, but it remains well below the roughly 3% vacancy level often linked with a balanced rental market.
For investors, this supports well-located, affordable rental formats.
2. Multiple incomes can reduce vacancy risk
A standard property has an all-or-nothing problem.
If the tenant leaves, income can fall to zero.
A co-living property or rooming house works differently. If one room is vacant, other rooms may still produce rent.
This does not remove vacancy risk.
It spreads it.
That distinction matters when you are testing a loan under higher interest rates, rising insurance costs and maintenance bills.
3. Co-living can create a strong income uplift
Well-designed co-living properties can generate up to 80% more gross income than a standard single-family rental.
That figure is not a guarantee.
It depends on location, room size, tenant demand, management, furnishing, approvals and operating costs.
Still, the income gap is large enough to change the investment decision.
Co-living is also moving beyond Sydney. It is expanding into Melbourne, Brisbane and regional hubs, with institutional investors showing growing interest in alternative living sectors.
The message is simple:
This is no longer just a niche idea for small investors.
4. Density can work in outer-metro areas
Inner Melbourne attracts attention, but it is often expensive.
That can make traditional house yields look weak.
Selected outer-metro growth corridors and regional cities are showing vacancy rates of around 1.2% to 2.1%, with gross yields above 5.5% in some areas.
These figures vary by suburb and property type.
You must assess the exact street, tenant pool and supply pipeline.
For Melbourne investors, that may mean looking beyond the usual inner-ring suburbs and testing locations near:
- Major employment areas
- Hospitals and education hubs
- Transport links
- Industrial precincts
- New infrastructure
- Regional service centres
Density works best where people need practical housing.
5. Land is now the main package battleground
Construction costs have broadly plateaued in their rate of growth.
That does not mean building is cheap.
It means construction inflation has slowed from its peak, while the cost base remains high.
Land values are now the main driver of many house-and-land package prices.
This makes land efficiency more important.
If the land component is already expensive, building one income-producing dwelling on it may leave money on the table.
A dual living or co-living design may improve the income produced by each square metre.
6. Dual living creates flexibility
Dual living is not the same as a rooming house.
A dual living property may include a main home and a separate living zone, or two self-contained dwellings on one title.
The key benefit is flexibility.
You may be able to:
- Rent both areas
- Live in one and rent the other
- House extended family
- Create two long-term leases
- Change the use of each zone as demand changes
That flexibility can support both cash flow and resale appeal.
7. Professional investors are watching the same trend
Institutional capital does not move into a sector because of a catchy headline.
It looks for repeatable income, strong demand and scalable property formats.
The growing interest in co-living and other “living sector” assets supports the idea that income-focused housing is becoming more important.
As discussed by CBRE in its co-living market commentary, co-living is being considered alongside build-to-rent, student housing and other rental formats.
You do not need institutional money to invest in density.
But you should learn from what professional investors are studying.
Co-living, rooming houses and dual living: the trade-offs
Density investing can improve income.
It can also create more work and more risk if poorly planned.
Co-living
Advantages
- Multiple rental incomes
- Strong demand from students and young professionals
- Potentially lower income loss when one room is vacant
- Better use of larger homes
- Up to 80% more gross income in suitable cases
Disadvantages
- More tenant communication
- Higher cleaning and maintenance needs
- Furnishing and utilities may increase costs
- Tenant turnover can be higher
- Design and management quality are critical
Rooming houses
Advantages
- Several income streams from one property
- Strong demand for affordable private rooms
- Potential for high gross yields
- Can suit locations near education, transport and employment
Disadvantages
- Extra Victorian compliance rules
- More intensive management
- Higher wear and tear
- Reputation and tenant safety must be taken seriously
In Victoria, a rooming house generally means a building where one or more rooms are rented and four or more people may occupy those rooms.
It must be registered with the relevant local council. Operators may also need a licence and must meet minimum standards.
Read the Consumer Affairs Victoria rooming house guidance before buying or changing a property.
Dual living
Advantages
- Two potential income streams
- More privacy than standard shared living
- Flexible use for families or tenants
- May appeal to owner-occupiers as well as investors
- Often easier to explain to future buyers
Disadvantages
- Planning approval may be required
- Separate services and entrances can increase build costs
- Some designs have limited resale appeal
- Poor layouts can feel cramped
- The second dwelling may not be legally independent
A dual living design that functions as two self-contained dwellings may be treated as a dual occupancy.
Check the zone, overlays, garden area, parking and permit requirements through Planning Victoria and your local council.
Use the DENSITY Scorecard before you buy
Do not buy a high-yield property because the brochure says “positive cash flow”.
Use this seven-point test.
D : Demand
Who will rent each room or dwelling?
Can you prove demand through local listings, employment, transport and tenant enquiry?
E : Entry cost
What is the full cost?
Include land, build, furnishing, permits, finance, insurance, management and contingency.
N : Number of income streams
How many separate rents can the property produce?
Do not count a room unless it is legal, usable and supported by real tenant demand.
S : Statutory approval
Is the proposed use permitted?
For a Victorian rooming house, check registration, licensing and minimum standards.
For dual occupancy, check planning and building permits.
I : Income stress test
Test the numbers with:
- One vacant room
- Lower-than-expected rent
- Higher interest rates
- More repairs
- Longer tenant changeover
- Management fees
If the deal only works at perfect occupancy, it is not a strong deal.
T : Tenant experience
Private entrances, good lighting, storage, sound control and shared spaces matter.
Better tenant experience can support longer stays and lower conflict.
Y : Your exit plan
Who will buy the property later?
An investor may value multiple incomes.
An owner-occupier may value flexibility.
A narrow design can reduce your buyer pool.
Your next action step
Before making an offer, complete this checklist:
- Confirm local vacancy and rent data
- Compare standard rent with room-by-room or dual-income rent
- Check zoning and overlays
- Obtain an early planning opinion
- Confirm all build and furnishing costs
- Allow for management and maintenance
- Stress test one vacant room
- Review the likely resale market
- Get legal, tax and lending advice
Let AZ Property Solutions model the numbers
Density investing is not about squeezing as many tenants as possible into one building.
It is about creating a legal, liveable and well-managed property with more than one path to income.
At AZ Property Solutions, we specialise in co-living, rooming houses, dual living and triple key properties.
Our done-for-you model can support you from land selection and design through to construction, tenant placement and ongoing investment planning.
Explore our co-living investment solutions, review our rooming house opportunities, or see how triple key living can create multiple income streams.
Ready to test whether a density property fits your portfolio? Contact AZ Property Solutions soon for a strategy discussion.
This article is general information only and does not constitute financial, legal, tax, planning or investment advice. Rental yields, vacancy rates and income projections are estimates and can change. Co-living, rooming house and dual occupancy projects are subject to location-specific approvals, costs, demand and management risks. Obtain independent advice before making an investment decision.