Builders · Rose Bay · Eastern Suburbs
High-end Rose Bay builders delivering architectural homes, major renovations and refined apartment refurbishments on Sydney's harbour.

About Ossher Design and Build
Rose Bay sits on one of Sydney's most coveted stretches of harbour, a mix of grand family homes, harbourfront residences and refined apartments where every project carries an expectation of finish, discretion and view-aware design.
Ossher Design and Build delivers high-end custom homes, major renovations and apartment refurbishments across Rose Bay and the broader Eastern Suburbs. Founded by Adam Ossher, we work with architects, interior designers and consultants to bring complex briefs into reality with the precision they deserve.
We have direct experience with Woollahra Council approval pathways, harbourside engineering and the view-sharing principles that shape so many Rose Bay DAs.
Fully licensed · Fully insured · Free consultation
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Services
Architectural custom homes, major renovations, extensions, apartment refurbishments and consultant-led delivery for high-end residential briefs.
Bespoke new builds tailored to your block, lifestyle, and brief.
Considered renovations that add liveability and long-term value.
Additions that integrate seamlessly with your existing home.
Add space and light without leaving the suburb you love.
Start fresh on the block you already own and love.
Maximise the potential of your block with a smart duplex.
Modern, practical kitchens with custom joinery and finish.
Hardwearing bathrooms built for the coastal lifestyle.
Get in Touch
From a harbourside renovation to a refined apartment refurbishment, we'd love to hear about your Rose Bay project.
Rose Bay and the Eastern Suburbs, NSW.
Ossher Design and Build · Fully licensed · Fully insured
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Local Knowledge
Rose Bay builds are technically and operationally demanding. Here's what we plan for from day one.
Rose Bay projects often involve heritage assessment, view-sharing analysis and detailed neighbour notification. We prepare DA submissions that hold up to scrutiny and manage council relationships throughout.
Steep blocks, retaining walls and complex glazing systems are common. We coordinate geotechnical, structural and waterproofing consultants from the outset to avoid costly surprises mid-build.
Many Rose Bay projects sit inside strata buildings. We coordinate body corporate approvals, neighbour notifications and trade schedules to keep refurbishments moving without friction.
Testimonials
"Excellent standard of work, consistently delivered beyond expectations. Adam's ideas transformed our water-damaged living area into a bigger space with improved views, with quality finishes delivered on time and on budget."
"I've worked with Adam for over five years. His attention to detail is exceptional, communication is clear and reliable, and he consistently delivers high-quality work."
"Working with Adam was a genuinely great experience. The process was organised and far less stressful than expected, and the final quality and attention to detail were outstanding."

Why Ossher Design and Build
Service Areas
We work across Rose Bay, Vaucluse, Dover Heights, Double Bay, Bellevue Hill and the broader Eastern Suburbs.
Not sure if we cover your area? Get in touch →
FAQs
In most cases, yes. Works that affect external appearance, change footprint, or exceed certain square metreages will require either a Development Application (DA) with Woollahra Council or a Complying Development Certificate (CDC). We assess your project in the initial consultation and advise on the right pathway.
We're a locally based building company that works across Rose Bay and the broader Eastern Suburbs. Our team is based in the area, which means faster response times, better knowledge of local conditions, and stronger relationships with local suppliers and consultants.
Yes. If your existing home can't be renovated to meet your needs cost-effectively, a knockdown rebuild is often the best solution. We manage the full process: demolition, DA or CDC approval, design coordination, and construction.
Yes. We hold a current NSW contractor licence and carry full public liability and home warranty insurance on every project.
Yes. We have experience working with Federation, Edwardian, and Californian bungalow homes across the Eastern Suburbs, many within heritage conservation areas. We work within heritage overlay requirements while delivering modern amenity.
Yes, we offer a free initial consultation for all projects. Get in touch via the form below or call us directly.
Related Areas & Services
Luxury Vaucluse custom homes and major renovations.
Double Bay homes, renovations and apartment refurbishments.
Luxury Bellevue Hill custom homes, heritage renovations and rebuilds.
Architectural custom homes across the Eastern Suburbs.
Full home and heritage renovation specialists across the region.
Region-wide landing page for the Eastern Suburbs.
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