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Living in a charming Edwardian weatherboard or classic Californian Bungalow in Thornbury offers undeniable character and community appeal. However, the designs of these classics are not what a modern family is looking for. You need to transform the disconnected layouts into flowing, open-plan spaces. At DG Build, we understand this challenge intimately. Your home's period charm shouldn't mean sacrificing comfort, natural light, or smooth indoor-outdoor living.
As your trusted custom home builder in Thornbury, we specialise in intelligently designed renovations and extensions that honour your home's architectural heritage while creating the functional, light-filled spaces your family needs. Our approach goes beyond simple additions; we create thoughtful transitions between original features and contemporary living areas, making sure every square metre works harder for your lifestyle.


We understand successful developments require more than construction expertise—they demand careful coordination across multiple stages and stakeholders to deliver projects that meet market expectations.
Our team brings extensive experience delivering medium to large-scale developments across Melbourne, from boutique apartments to mixed-use precincts. We work closely with developers from early planning through to completion, maintaining design intent while identifying value engineering opportunities.
Our vertically integrated workforce provides greater control over critical path activities, reducing risk and improving delivery certainty. The result is developments that create lasting value—well-crafted buildings that perform for decades.
Building multi-residential projects requires understanding how shared spaces function and how construction decisions affect future residents' lives.
We balance commercial realities with unwavering build quality, focusing on details that matter—acoustic separation, weatherproofing, durable finishes, and maintainable services. These investments in liveability ensure long-term performance.
We've delivered townhouses, apartments, and social housing across Melbourne, maintaining consistency across every unit. Our experience includes working within occupied sites and staging works to minimise resident disruption.
Whether affordable or premium, we deliver multi-residential projects where quality construction translates into better living experiences.


Healthcare construction demands absolute precision and strict compliance—there's no margin for error when patient care is at stake.
We specialise in medical fitouts, clinic refurbishments, and facility upgrades that meet stringent sector requirements. Our team understands infection control, sterile environments, and complex mechanical systems modern healthcare demands. We work methodically through DHS standards and AS4187 compliance.
Experience has taught us to phase works around operations, minimise clinical disruption, and ensure patient care continues uninterrupted. We've delivered projects in operating hospitals, specialist clinics, and aged care facilities.
The outcome is healthcare spaces that enhance care delivery through thoughtful, quality construction.
Retail construction operates on different rhythms—tight programmes, uncompromising brand standards, and critical opening dates aligned with trading opportunities.
We deliver fitouts and refurbishments that capture brand identity while meeting practical commercial demands. Our team understands retail pressure and the importance of minimising downtime. We've worked with local boutiques and national chains, coordinating with centre management and completing within unforgiving timeframes.
Our integrated workforce maintains quality under compressed schedules. We're experienced in after-hours work, staged openings, and operational environment logistics.
The result is retail spaces that open on time, on budget, and ready to trade—environments that draw customers and withstand commercial demands.


The original layouts of Thornbury's Edwardian and Californian Bungalow homes were designed for a different era. Small, compartmentalised rooms at the rear often feel disconnected from gardens and outdoor spaces. These south-facing areas typically suffer from poor natural light, making them feel cold and uninviting, especially during Melbourne's long winters.
With more than half of Thornbury residents renting their homes, new owners often find the harsh reality of excessive energy bills shortly after purchase [Source: Australian Bureau of Statistics, 2021 Census QuickStats for Thornbury]. Original timber weatherboards and single-brick constructions lack proper insulation, weather sealing, and double glazing. Drafty windows, gaps in floorboards, and inadequate ceiling insulation create homes that are freezing in winter and sweltering in summer, a costly problem that only worsens as energy prices rise.
At DG Build, we've developed specific knowledge in addressing these challenges through intelligent design and meticulous craftsmanship. Our renovations focus on creating stress-free flows between your home's original character and modern extensions, bringing northern light deep into previously dark spaces.
We specialise in thermal upgrades that dramatically improve comfort while lowering energy costs. This includes retrofitting insulation, installing high-performance windows, and creating effective building envelopes, all while maintaining the architectural integrity that makes Thornbury homes special. Our obsession with design detail verifies every junction between old and new construction is perfectly executed, preventing future issues with moisture or thermal bridging.


The City of Darebin's Heritage Overlay adds complexity to renovation projects, requiring sympathetic additions that respect streetscape character. Our extensive industry experience with council requirements means we understand exactly how to design extensions that meet approval criteria while maximising your living space potential.
We handle the entire planning process on your behalf, from initial heritage assessments through to final permits. Our designs make sure new additions remain appropriately recessed from street frontages, use complementary materials, and maintain the neighbourhood's cherished character, all while delivering the modern functionality you need.
Our deep understanding of Thornbury's unique housing stock sets us apart from generic builders. We know the specific challenges of bringing light into south-facing Californian Bungalows on narrow blocks near Penders Park. We understand how to work with the natural slope towards Merri Creek while managing drainage and foundation considerations.
This local in-field experience, paired with our proven track record since 2011, means we deliver services tailored to Thornbury's specific context. Whether you're a young professional drawn to High Street's vibrant cafe culture or an established family seeking more space near Thornbury Station, we create homes that improve both your lifestyle and property value.
[Start planning your renovation this winter]
As a luxury home builder in Thornbury, our commitment to excellence is evident in every project:
Our obsession with design detail and craftsmanship has earned us repeat clients throughout Melbourne who value honest communication, effective procedures, and exceptional outcomes.

Project timelines vary based on scope, but most rear extensions and renovations take 4-6 months from breaking ground. Council approval processes typically add 2-3 months beforehand, which is why we recommend starting planning in winter for spring construction starts.
Absolutely. We have extensive industry experience finding our way through Darebin's Heritage Overlay requirements. Our designs respect original architectural features while creating modern, functional spaces that meet contemporary living standards.
We implement wide-ranging thermal upgrades including ceiling and underfloor insulation, double-glazed windows, weather sealing, and effective heating/cooling systems. These improvements typically lower energy costs by 40-60% while dramatically improving year-round comfort.
Yes, we manage the entire approval process including heritage assessments, planning permits, and building permits. Our established relationships with local consultants and understanding of Darebin's requirements makes sure smoother approvals.
We develop end-to-end project schedules that lower impact on your daily routine. Where possible, we complete work in stages, allowing you to maintain use of essential areas. Our efficient procedures and organised approach help decrease construction timeframes without compromising quality.
Ready to transform your Thornbury home while honouring its heritage? Contact David Hart directly on 0400 100 312 to discuss how our custom building knowledge can solve your home's unique challenges. Let's create a space that celebrates both character and comfort.
