Dual occupancy means having two dwellings on one lot. This could be a
second house behind your existing home, a garage conversion to a
dwelling, a granny flat, or a purpose-built secondary residence. Both
dwellings sit on a single title — you cannot sell them separately
without first subdividing.
What Is Subdivision?
Subdivision creates a new, separate title for part of your lot. You can
then sell the new lot (vacant or with a dwelling built on it), develop
it separately, or keep it as a separate investment. Each title can be
owned, financed, and sold independently.
Side-by-Side Comparison
———————- ———————– ————————-
Factor Dual Occupancy Subdivision
Separate title** No Yes
Can sell No (unless strata’d) Yes
independently**
Planning permit Usually yes Yes
needed**
Timeline** 6–18 months 12–24 months
Cost** $50K–$200K+ $35K–$120K+
Best for** Rental income, family Capital release,
investment
Exit strategy** Sell or subdivide later Immediate sale possible
Finance options** Limited to one mortgage Separate finance per lot
———————- ———————– ————————-
When Dual Occupancy Makes More Sense
Dual occupancy is often the better choice when your lot is too small to
subdivide and meet minimum lot size requirements, when you want rental
income from the second dwelling while retaining the full property, when
you want to house a family member while maintaining shared ownership of
the land, or when you want flexibility to subdivide in the future once
values have increased.
When Subdivision Makes More Sense
Subdivision is typically the better strategy when your lot is large
enough to comfortably accommodate two separate lots, when you want to
release capital by selling the rear lot, when you plan to build and sell
separate dwellings as a development, or when you want the flexibility to
finance, own, and sell each lot independently.
The Hybrid Approach: Build and Then Subdivide
A popular strategy in Melbourne is to first build a new dwelling under a
dual occupancy permit, then apply for subdivision once the building is
complete. This approach gives you rental income during the subdivision
process and often results in a higher sale price for the new dwelling
once it has a separate title.
Frequently Asked Questions
Can I subdivide my property after building a dual occupancy?
Yes. This is a common strategy. You first obtain a planning permit and
building permit for the second dwelling, construct it, and then apply
for subdivision. The subdivision application must still meet planning
scheme requirements.
Is dual occupancy profitable in Melbourne?
In the right location, yes. A well-designed dual occupancy in a suburb
with strong rental demand can generate gross rental yields of 4–6%. The
second dwelling typically costs $200,000–$500,000 to build and can
rent for $400–$700 per week depending on location.
Does a granny flat count as dual occupancy?
Yes, a granny flat (or secondary dwelling) is a form of dual occupancy.
In Victoria, granny flats are regulated under the planning scheme and
generally require a planning permit unless they meet specific exemption
criteria.
Ready to Get Started? Contact Integral Design Solutions today for
expert subdivision planning and dual occupancy advice services in
Melbourne and Victoria. Visit integraldesignsolutions.com.au/ or call
us to book a free consultation.
