Master Builders Victoria HIA Member Registered Builder CDB-U 51179 20+ Years in the Yarra Valley

Get to Know Your Builder Before You Sign

Cobalt Constructions builds custom homes across the Yarra Valley, from sloping bush blocks to BAL-rated acreage. Our brochure explains who we are, how we plan and build, and what working with us looks like from first meeting to handover. Read it first, and talk to us when you’re ready.

20+ Years of Custom Home Building Experience

Get the Cobalt Brochure

Who we are, how we build, and what working with us looks like. No phone call needed.

What Our Clients Say

Real Stories From Homeowners Who Built With Cobalt

Leah and Josh

Google Review

The team at Cobalt Constructions recently finished building our family home. After our original builder went into liquidation forcing a delay we found Cobalt and approached them to see if they could build our home. We have been very impressed with the high quality of the build as it was evident from the start that Jarrod and his team pride themselves on their work, ensuring everything was completed to high standards. The team at cobalt were wonderful to communicate with throughout the entire process and were honest and open communicators. We loved getting to know them all and would highly recommend the company for a great custom build! Thanks again for creating our wonderful home.

Julia & Reid Dearson

Google Review

Jarrod, Katherine and the Cobalt team were brilliant to work with and have delivered our dream home. Their care and attention to detail shines through in the incredible quality of the finished product. We couldn’t be happier. From the initial consult the team was friendly and enthusiastic. They presented multiple options every step of the way and were always open to chatting through our thoughts and feelings to ensure we made a decision that met all our needs. Jarrod’s creativity, passion for problem solving, and love of efficiency took our design to the next level. We were particularly impressed with how communicative the team were, especially after hearing nightmare stories about builders ghosting their clients or being unreachable. Katherine and Jarrod were always available and we never waited more than half a day to hear back after emailing or leaving a voice message. By the end of the project we felt like we had gained trusted partners, not just builders. Now that we’re in the house we miss them!

Unmatched Quality & Certainty

Why Families Choose Cobalt

Fixed-Price Confidence

Know where your money is going and why, upfront. Cobalt provides clear, detailed pricing and works to finalise selections before construction to provide a truly fixed-price contract.

Tailored Design Freedom

Your home should reflect your lifestyle, vision and block. Cobalt creates bespoke homes rather than restricting you to standard volume-builder floorplans.

Yarra Valley Expertise

With more than 20 years of experience and deep knowledge of the Yarra Valley, Cobalt understands challenging sites, sloping blocks, BAL-rated builds, off-grid requirements and local conditions.

Dedicated Attention

Cobalt intentionally limits the number of homes it takes on each year, allowing the team to give each project more time, communication and attention throughout the build.

Experienced Craftsmanship

Cobalt works with experienced trades and trusted suppliers, with a focus on quality workmanship, premium materials and attention to detail throughout every bespoke build.

Energy Smart & Future Ready

From passive design principles and energy-efficient solutions to smart-home technology and off-grid options, Cobalt creates homes designed for comfort, efficiency and long-term living.

OUR SERVICES

Expert Solutions for Exceptional Homes

BAL-rated bushfire resistant custom home construction

Custom Home Designs

Your vision, thoughtfully brought to life. We create bespoke homes that reflect your lifestyle, personal style, and the way you want to live.

Passive design home construction

Future-Proof Style

Build with confidence through BAL-rated design that balances bushfire resilience with architectural style and comfort.

Passive design home construction

Year-Round Comfort

Enjoy a home designed for every season, with considered design principles that support lasting comfort and energy efficiency.

Passive design home construction

Smart Living

Make everyday living simpler with smart-home technology designed around convenience, comfort and control.

Passive design home construction

Sustainable Elegance

Embrace sustainable living without compromising on luxury, with energy-efficient and off-grid solutions tailored to your home.

TAILORED CUSTOM HOME DESIGN

Custom Homes Designed Around You

At Cobalt Constructions, we believe your home should reflect your lifestyle, vision, and the unique characteristics of your land. Whether you already have plans from an architect or building designer, or need guidance developing your concept, our team works closely with you to bring your ideas together and create a home that feels distinctly yours.

Bespoke Layout Planning: Create a layout tailored to your lifestyle, with thoughtful consideration of space, natural light, flow, and the way you want to live.

Sloping & Difficult Block Expertise: Experienced in challenging Yarra Valley sites, including sloping land, excavation, drainage, retaining works and complex site conditions.

Personalised Materials & Finishes: From fixtures and finishes to premium materials, our team helps you choose options that align with your design vision, lifestyle, and budget.

Passive & Energy-Efficient Design:
Consider orientation, natural light, thermal performance, and passive-design principles to create a more comfortable, energy-efficient home.

Complex & Unique Site Mastery

Specialist Building Expertise

BAL-rated bushfire resistant custom home construction

Resilient designs

Our BAL-rated homes offer safety without sacrificing style, crafted to withstand nature while reflecting your personal aesthetic.

Passive design home construction

Thermal comfort

Our passive house designs prioritise energy efficiency, offering pure thermal comfort all year round and reducing ecological footprints.

Eco-friendly sustainable home building

Eco-conscious elegance

We create homes that not only respect the environment, but also cater to your desire for sophisticated, personalised living.

Smart home technology integration in luxury custom homes

Intelligent living

Step into the future with smart home technologies that blend seamlessly into your custom living spaces, offering convenience in every corner.

why choose our custom home builders

SUSTAINABLE LUXURY

Designed for Comfort, Efficiency and the Future

Building with Cobalt means creating a home designed for long-term comfort and efficiency. From passive design principles and high-performance insulation to smart-home technology and off-grid solutions, features can be tailored to suit your lifestyle, site, and sustainability goals.

High-Performance Thermal Design:
High-performance insulation, quality glazing and thoughtful building-envelope design help maintain comfortable indoor temperatures throughout the year.

Smart Home Technology:
Explore integrated solutions such as automated lighting, climate control, smart locks and security systems designed to make everyday living more convenient and efficient.

Solar & Off-Grid Options:
Incorporate solutions such as solar power, battery storage and rainwater collection to support greater efficiency and energy independence where appropriate.

Healthy, Comfortable Living:
Passive and energy-efficient design can combine controlled ventilation, moisture management and considered material choices to create a fresher, more comfortable indoor environment.

A SEAMLESS & REWARDING JOURNEY

Our Simple, Transparent Process

01

Discover Your Vision

Tell us about your land, goals, and ideas. We’ll provide indicative pricing early on to help establish feasibility before moving forward.

02

Design with Distinction

We shape your concept into a home that reflects how you live. Together, we refine the layout, select finishes, and perfect the details that make it yours.

03

Proposal & Fixed-Price Contract

Before construction begins, you receive a detailed proposal and fixed-price contract, giving you clarity with no hidden costs.

04

Build with Care

Your home takes shape while you stay informed through regular progress updates, personal site visits, and Cobalt’s client portal.

05

Add the Final Touches

We complete a detailed walk-through, hand over your finished home, and continue to support you with a homeowner’s manual and maintenance check-in.

Recent Completed Projects

Explore Our Custom Homes

How much does a luxury custom home cost per square metre in the Yarra Valley?
Custom home building costs vary based on site complexity, BAL ratings, floor plan size, and material selections. Generally, bespoke luxury builds range from $3,000 to $5,500+ per square metre. During our initial consultation, we provide a transparent cost estimate based on your exact requirements.
Can you build on steep, sloped, or high BAL-rated bushfire blocks?
Yes. Cobalt Constructions specializes in challenging sites across the Yarra Valley and Dandenong Ranges. We handle BAL-12.5 to BAL-FZ (Flame Zone) construction, custom sub-floor engineering, and steep site retaining systems.
Do you provide custom floor plan and architectural design services?
Absolutely. We offer complete Design & Construct packages where our custom home designers collaborate with you from scratch. Alternatively, if you already have plans from an independent architect or building designer, we can provide a fixed-price tender to construct them.
Is your contract price truly 100% fixed?
Yes. Once architectural plans, engineering, soil testing, and material specifications are finalized, we issue a Master Builders Victoria fixed-price contract. There are zero hidden surprises unless you request optional scope variations.
How long does a custom home build typically take from start to finish?
The design and permit phase typically takes 3 to 6 months. Once construction begins, physical build timelines range from 8 to 14 months depending on scale, weather, site complexity, and custom joinery requirements.

Start Your Journey

Ready to Build Your Dream Home?

Turn your vision into an iconic, luxury custom residence. Speak directly with our master builders and custom floor plan designers today.

Cobalt Constructions is an award-winning luxury custom home builder serving the Yarra Valley, Dandenong Ranges, and Eastern Suburbs of Melbourne. Specialising in bespoke architectural builds, acreage homes, BAL-rated bushland construction, and knockdown rebuilds.

Contact Us

Factory 9, 6-8 Eastspur Court
Kilsyth South VIC 3137

Accreditations

✓ Master Builders Victoria Member

✓ HIA Member

✓ Registered Building Practitioner

✓ 100% Fixed Price Guarantee

Cobalt Constructions 03 9014 1464