Generated by Rank Math SEO, this is an llms.txt file designed to help LLMs better understand and index this website. # HDMB: Sydney's renovation, extension and first floor addition specialists. HDMB deliver bespoke architectural renovations, extensions and first floor additions across the Eastern Suburbs, Inner West, and Lower North Shore. Planning a project? - follow the website link and tell us all about it. We would love to help you realise your homes' undiscovered potential. ## Sitemaps [XML Sitemap](https://hdmb.com.au/sitemap_index.xml): Includes all crawlable and indexable pages. ## Posts - [Why We Limit the Number of Projects We Build Each Year](https://hdmb.com.au/specialist-home-builder-limits-projects/): At HDMB, a specialist home builder in Sydney, we've made a conscious decision to limit the number of renovations and extensions we undertake each year. While this might seem counterintuitive from a business perspective, it's one of the biggest reasons we're able to consistently deliver high-quality projects and an enjoyable experience for our clients. - [Why Home Insulation Matters: R-Values, Floor Insulation and the NCC](https://hdmb.com.au/home-insulation-r-values-ncc/): Home insulation affects comfort, energy bills and NCC compliance. A Sydney builder's guide to R-values, floor insulation and getting it right early. - [The Building Process: Why It Makes All the Difference](https://hdmb.com.au/the-building-process-why-it-matters/): A strong building process is what separates a smooth Sydney renovation from a stressful one. Here are the four steps that keep your build on track. - [Why Home Renovations Get Delayed And How to Avoid It](https://hdmb.com.au/why-home-renovations-get-delayed-and-how-to-avoid-it/): Most renovation delays in Sydney are not caused by bad weather or supply chain problems — they're caused by poor planning before work even starts. When approvals aren't locked in, documentation is incomplete, or trades aren't scheduled properly, delays are almost inevitable. The good news: with the right builder and the right process, your renovation can run on time. - [How to Renovate a Period Home Without Losing Its Soul](https://hdmb.com.au/renovate-period-home-keep-soul/): Renovating a period home in Sydney — especially in suburbs like Marrickville, Leichhardt, or Annandale — means working with two competing demands. Preserve what makes the home special. And modernise enough to actually live in it. When that balance is struck well, the result feels seamless. When it isn't, you're left with a house that feels like two different buildings bolted together. - [3 Traits That Separate a Great vs. Nightmare Builder](https://hdmb.com.au/great-vs-nightmare-builder-traits/): You’re about to make one of the biggest investments of your life - your dream home. But there’s a problem most homeowners never see coming until it’s too late: Their builder goes missing. - [Why So Many Renovations Go Wrong After Handover (And How to Guarantee Yours Doesn’t)](https://hdmb.com.au/avoid-renovation-mistakes-after-handover/): Then, a few weeks pass after the handover. - [Why Your Renovation Quote Is Now 40% Higher Than Expected — And How to Fix It Before It Starts](https://hdmb.com.au/renovation-quote-40-percent-higher-solutions/): What Sydney Homeowners Need to Know Before Committing to a Custom Build or Renovation - [Why Choosing the Wrong Sydney Builder Could Ruin Your Renovation Dreams](https://hdmb.com.au/choosing-the-wrong-sydney-builder/): If you’re considering a first-floor addition to your 100-year-old cottage, terrace, or semi-detached home in Sydney, you can’t go rushing in. Read below to know why choosing the wrong Sydney builder could ruin your renovation dreams - [5 Tips for Splurging Where It Counts in Your Sydney Home Extension](https://hdmb.com.au/sydney-home-extension-tips-splurging/): When you’re planning a home extension, it’s easy to get carried away. Another bathroom here, a feature wall there, and before you know it, the numbers no longer meet budget. - [Why Not All Renovation Teams Can Handle Heritage Homes in Sydney](https://hdmb.com.au/why-not-all-renovation-teams-handle-heritage-homes-sydney/): Some of the houses in Sydney’s inner suburbs were built over 100 years ago. They were practical for their time. But for modern families, they’re just not cutting it anymore.  - [7 Builder Traits That Will Save You From On-Site Chaos and a Blown Budget](https://hdmb.com.au/builder-traits-to-avoid-onsite-chaos-blown-budget/): Imagine the frame of your house is up, ready for the next stage. But then your builder realises he’s forgotten to lock in a roofer. Panicked, he makes the call: “I need you on-site in two weeks.” The response? “Sorry, I’m booked out for three months.” - [5 Must-Have Documents for an Accurate Homebuilding Quote](https://hdmb.com.au/documents-homebuilding-quote/): And it goes beyond approvals. The effort you put into preparing detailed plans and documents early on can make or break your homebuilding project. - [Want a Stress-Free Build? Here’s Why a ‘Client Portal’ is Non-Negotiable](https://hdmb.com.au/stress-free-build-why-client-portal-is-essential/): Imagine, a few weeks into building a new home, your builder suddenly goes silent. Dozens of missed calls. Unread emails piling up. And when you drive by the site, it looks abandoned. - [7-Point Checklist for Finding a Builder Who Won’t Go Bankrupt and Leave You Stranded Mid-Build](https://hdmb.com.au/7-point-checklist-for-finding-builder-who-wont-go-bankrupt/): Builders going under. It’s a story we’ve all heard — one that ends with an unfinished home and your hard-earned money buried in the rubble. - [The Hidden Costs of Skipping Early Builder Involvement](https://hdmb.com.au/hidden-costs-skipping-early-builder-involvement/): Imagine sitting down with your architect, planning to “sink” your home into a sloped lot so your living room opens up to a perfectly landscaped backyard. It looks great on paper. But nobody told you this would increase construction costs by more than 100 grand. - [Navigating the Budget Maze: The Power of a Local Specialist Builder](https://hdmb.com.au/navigating-the-budget-maze-the-power-of-a-local-specialist-builder/): Renovating and extending your home is an exciting and rewarding journey that promises to transform your living space into a dream home for you and your family. Yet, the thought of spiralling costs can often cast a shadow on the excitement. Fear not! We're here to guide you through the budget maze by unveiling your secret weapon to staying on course—partnering with a local specialist builder. Contrary to popular belief, a perfectly selected builder can be your budget’s best friend. - [Designing for Your Lifestyle: Customising Your Home to Suit Your Family](https://hdmb.com.au/designing-for-your-lifestyle-customizing-your-home-to-suit-your-family/): Your home is much more than just walls and a roof – it's where families create their stories. As life progresses, so should your living space. Imagine a home that fits perfectly with your lifestyle, where every corner reflects your family's unique needs. It’s not only form and function that is important, it’s also your life, routine and future necessities that must be considered. Get ready for a journey in design that is centred all around you! - [Busting Renovation Myths](https://hdmb.com.au/busting-renovation-myths/): Embarking on a renovation journey is an exciting endeavour, but it can also be accompanied by a host of worries and misconceptions. Will it break the bank? Will it run over schedule? Can the old be seamlessly blended with the new? Fear not! We're here to debunk those renovation myths and set the record straight. When it comes to turning your dream renovation into a reality, the key is to partner with a trusted specialist builder. ## Pages - [Archives](https://hdmb.com.au/archives/): Privacy Policy. - [Questionnaire](https://hdmb.com.au/questionnaire/): To help assist us with your enquiry we would like to know a little more about your project. - [project J1333 hunters hill](https://hdmb.com.au/gallery/project-j1333-hunters-hill/): COMING SOON - [project J1303 – leichhardt](https://hdmb.com.au/gallery/project-j1303-leichhardt/): Hidden on a quiet Leichhardt street, this 1910s semi-detached cottage features a contemporary two storey rear addition with 4 bedrooms, 2 bathrooms and architectural finishes. - [project J1319 – annandale](https://hdmb.com.au/gallery/project-j1319-annandale/): COMING SOON - [project-j1316-woollahra](https://hdmb.com.au/gallery/project-j1316-woollahra/): COMING SOON - [Home](https://hdmb.com.au/): HDMB are specialist residential builders - the local authority on transforming your early century house into abespoke modern home for you, your family, for generations to come. - [project J1010 annandale.](https://hdmb.com.au/gallery/project-j1010-annandale/): Architecturally remodelled for modern living. Transformation of a single level, 1 bed workers cottage to a 2 storey, 3 bed, 2 bath showpiece. This project features an open plan ground floor with first floor bedrooms, clever storage, concealed laundry and a bespoke ethanol eco fireplace in the kitchen/ dining. A family sized home with the feeling of space on a tiny 127m2 Annandale lot. Entire ground floor open plan living with family bathroom.Light filled north facing kitchen with timber casement windows and exposed ceiling beams.Three bedrooms with raked ceilings off stairwell on the first-floor addition.Engineered oak flooring throughout ground floor.Travertine paving in both front and rear yards. Lot Size = 127 m2Approval type: DA Before After House footprint77m280m2Internal Floor Area72m2127m2Bedrooms13Bathrooms12Living / Kitchen / Dining30m275m2 the team. Builder and Project Management: HDMB Architect: Danny Broe Architect Windows: Sydney Woodworkers Photographer: Jay Henman - [project J1018 dulwich hill.](https://hdmb.com.au/gallery/project-j1018-dulwich-hill/): Rear extension and first floor addition to an original single level, classic Dulwich Hill 1920's brick residence. Addition of an open plan ground floor living/ dining/ kitchen area with two bedrooms, second bathroom and attic storage on the first floor. A practical design optimising immediate improvement to family living and guaranteed return on investment. - [project J1167 leichhardt.](https://hdmb.com.au/gallery/project-j1167-leichhardt/): A textbook example of designing within the CDC guidelines to create a family home with maximum floor area, maximum ceiling heights and a generous flowing floor plan. This beautiful addition, mostly hidden from the street frontage, is a light filled open plan retreat carefully considered for Inner West living and a growing family. - [project J1087 drummoyne.](https://hdmb.com.au/gallery/project-j1087-drummoyne/): Keeping the existing footprint and ground floor external walls, this renovation breathes new life into the current spaces whilst adding a generous 58m2 first floor addition. Improved open plan living, dining and kitchen with the addition of two bedrooms, games room and second family bathroom on the first floor. A light filled modern design with great use of space for a growing family. - [project J1141 annandale.](https://hdmb.com.au/gallery/project-j1141-annandale/): Hidden behind what appears to be a classic single storey and single frontage Annandale terrace, this unassuming extension/ addition provides light-filled living spaces with high ceilings, oversized rear stacking doors and a private rear lawn perfect for entertaining. The first-floor addition - master bed and ensuite delivers the perfect parents' retreat. - [project J1027 st.peters.](https://hdmb.com.au/gallery/project-j1027-st-peters/): A modern freestanding studio built within the walls of an original 1800's stables, hidden behind a classic Victorian terrace. Loft bedroom, double glazing, ash cladding and hardwood floors. A private light filled retreat with green outlooks and pockets of original brickwork. A truly spectacular modern detached home which pays homage to times past. - [project J1111 dulwich hill.](https://hdmb.com.au/gallery/project-j1111-dulwich-hill/): A striking architectural addition. Seamlessly linked by a short corridor this modern extension and first floor addition leaves the original period federation home intact. A generously sized master bed and ensuite was positioned over a huge open plan kitchen, dining and living areas at the rear. With floor-to-ceiling glass stacking doors, outdoor entertaining and pool, the result is a truly exceptional family home. - [project J1287 leichhardt.](https://hdmb.com.au/gallery/project-j1287-leichhardt/): A unique take on a classic freestanding Leichhardt terrace. Drawing on Italian influences this addition centres around the kitchen and dining as the heart of the home. With extensive joinery, a dedicated barista station, beautiful blackbutt floors and soaring ceilings. A compact home with high architectural finishes dedicated to entertaining and the gathering of family. - [FAQ](https://hdmb.com.au/faq/): For those who haven't worked with a builder before, the design and construction process can seem quite overwhelming. Stories of both triumphs and tragedies are in great supply and where to start or what to ask can be the first hurdle. Your project, however, with a clear understanding of your brief and careful selection of a local professional builder who specialises in your build type, can be an enjoyable process with an outcome that not only adds value to your home but adds comfort and improved quality of life for years to come. - [Gallery](https://hdmb.com.au/gallery/): gallery. Our Sydney Home Renovation and Extension Projects Every home in our gallery started the same way: a family who loved where they lived but had outgrown their space. Rather than move, they chose to extend, add a first floor, or renovate, and trusted HDMB Builders to make it happen. The projects below span Sydney's Inner West, Eastern Suburbs and Lower North Shore, from period terraces and semis in Annandale, Leichhardt and Dulwich Hill to character homes in Woollahra, Hunters Hill and Drummoyne. Many are heritage or early-century properties where the real challenge is blending original character with modern, light-filled living. That is exactly the work we specialise in. Each build reflects the same structured process we bring to every project: careful upfront planning, transparent budgets, and clear communication from the first consultation through to handover. The result is not just a beautifully finished home, but a smooth, low-stress experience along the way. Browse the projects below to see how we have transformed homes across Sydney, then get in touch to talk through what is possible for yours. project J1303 leichhardt coming soon project J1349 woollahra coming soon project J1349 stanmore project J1111 dulwich hill project J1287 leichhardt project J1010 annandale coming soon project J1420 rose bay coming soon project J1351 dulwich hill coming soon project J1268 haberfield coming soon project J1319 annandale project J1027 st.peters coming soon project J1283 lilyfield - [Testimonials](https://hdmb.com.au/testimonials/): "I would definitely recommend HDMB to others, in fact, I already have. I would suggest... get in touch with Jay upfront with the pre-planning stage, because that really converted into the build and converted my random designs into an actual physical home." - [Process](https://hdmb.com.au/process/): Our experienced team will work with you through each stage of your project, from initial consultation to planning and approvals through to construction and handover of your new and perfected family home. Our thoroughly proven and tested processes will deliver your project to the highest standard, stress-free, on time and on budget. - [Blog](https://hdmb.com.au/blog/): blog. - [Contact Us](https://hdmb.com.au/contact-us/): We love talking all things design, planning and building, our beautiful city, spaces old and spaces reimagined. - [About Us](https://hdmb.com.au/about-us/): HDMB are specialist residential builders. We focus on high quality extensions and first floor additions throughout Sydney's Inner West, Eastern Suburbs, and the Lower North Shore. - [Privacy Policy](https://hdmb.com.au/privacy-policy/): Welcome to https://hdmb.com.au (the "Site").We understand that privacy online is important to users of our Site, especially when conducting business.This statement governs our privacy policies with respect to those users of the Site ("Visitors") who visit without transacting business and Visitors who register to transact business on the Site and make use of the various services offered by HDMB (collectively, "Services") ("Authorized Customers"). ## Media Hub - [Dulwich Hill Project](https://hdmb.com.au/media/dulwich-hill-project/) ## Categories - [choosing a builder](https://hdmb.com.au/category/choosing-a-builder/) - [home extensions & design](https://hdmb.com.au/category/home-extensions-design/) - [period & heritage home renovations](https://hdmb.com.au/category/period-heritage-home-renovations/) - [renovation costs & budgeting](https://hdmb.com.au/category/renovation-costs-budgeting/) - [the building process](https://hdmb.com.au/category/the-building-process/) ## Tags