Dual Occupancy Builders in Melbourne’s East

If you own a single block with development potential, Costas Constructions can help you understand what’s possible and build it, from feasibility and planning through to construction of two quality dwellings.

Established 1998 | Medium-Density Specialists | Melbourne’s East | End-To-End Development Support | Award Winning Builder

Not Sure If Your Block Is Suited to Dual Occupancy?

Many landowners don’t realise the development potential of the property they already own. Your existing block may be suitable for a Dual Occupancy development.

At Costas Constructions, we assess your site’s zoning, dimensions, overlays, and overall development potential to determine what’s realistically achievable before you invest in design or planning costs. Our upfront feasibility assessment provides the confidence to make informed decisions and maximise the value of your land.

You Own The Block

For homeowners and landowners who already own a site and want to unlock its development potential, we’ll help you understand what’s possible on your site and how to maximise its value.

You're Ready To Develop

For investors and developers who have identified or purchased a site specifically for a dual occupancy project and need a builder to take it from plans to completion.

COSTAS CONSTRUCTIONS

Dual Occupancy Builders Across Melbourne’s East

For more than two decades we’ve delivered Dual Occupancy projects across Melbourne’s east, leveraging our market knowledge and planning expertise to generate stronger returns. Our long-standing council connections mean fewer delays and smarter outcomes for investors.

  • Manningham City Council

  • Maroondah City Council

  • Booroondara City Council

  • Monash City Council

  • Whitehorse City Council

  • Knox City Council

From Site Potential to Completed Development

Costas Constructions supports Dual Occupancy projects from the very first question, “can I build two here?”, through to a finished, handed-over development.

STAGE

01

SITE POTENTIAL & FEASABILITY

We review your block’s zoning, size and orientation, and give you a practical read on whether dual occupancy stacks up before you commit to plans or a purchase.

STAGE

02

PLANNING DOCUMENTATION

We help shape a dwelling layout that suits both your site and the local market, balancing two homes on the block without compromising either.

STAGE

03

PERMIT APPLICATION

With experience across key eastern Melbourne councils, we understand the permit and overlay requirements specific to dual occupancy sites.

STAGE

04

BUILDING DOCUMENTATION

We coordinate working drawings, soil reports, engineering and energy reports for both dwellings ahead of construction.

STAGE

05

CONSTRUCTION & HANDOVER

We manage construction of both dwellings with clear scheduling and site-specific supervision through to completion.

Why Landowners and Developers Choose Costas

Dual occupancy sites come with their own planning and design challenges, fitting two quality homes onto one block without either feeling compromised.

Costas Constructions has the experience to get that balance right.

ESTABLISHED EXPERIENCE

DUAL OCCUPANCY SPECIALISTS

COUNCIL KNOWLEDGE

END TO END SUPPORT

COMMERCIAL MINDSET

QUALITY BUILD DELIVERY

Award-Recognised Builder

Costas Constructions has been recognised for its work across residential and
multi-unit developments, reflecting the team’s commitment to quality design, construction and project delivery.


2025 Nominee
Master Builders Victoria


2025 Finalist
Townhouse Development up to $500,000 per dwelling


2025 Finalist
Residential Design


2025 Finalist
Custom Built Home up to $1 Million

Hear From Our Customers

“Thank you very much to George and the team at Costas Constructions for the outstanding dual occupancy project they delivered for us. From our first meeting right through to after the project was completed, the team at Costas was with us and guided us through the whole process. Their responsive, communicative and professional team was always upfront and honest with all the requests and changes that needed to be made. There were never any surprises or last minute issues that required any discussion as these were all pointed out as soon as they came up. We would highly recommend Costas and would not hesitate to build with them again.”

-Darren S

“Costas have been excellent to work with, they helped me navigate all queries that come up during the construction and helped with options depending on plans and budget. Highly recommend them for your development and construction projects or any investment opportunities in general. The team gets a special mention, Shane, Alison, Peter, Andrew to name a few were awesome to work with throughout the build and their suggestions and thoughts were very helpful in making decisions.”

-Ram P

“Have used Costas for 2 projects thus far and both times the experience has been fantastic. The team is wonderful to deal with and also knowledgeable in their respective areas. Special shout-out to Alison for her friendly and collaborative attitude. Will definitely consider again for any construction projects in the future.”

-Amit S

Frequently Asked Questions

Discuss Your Dual Occupancy Development

Own a block with potential, or already have a dual occupancy project underway? Speak with Costas Constructions about what’s possible.

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