40+ Best Granny Flat Builders in Sydney, New South Wales (2024)

Granny flats are a great way to add extra space to your home. They can be used as guest rooms, separate living quarters for adult children or elderly parents, rental units and more.

If you're looking for the best granny flat builders in Sydney, New South Wales, then look no further today! You've come to the right place! 

We have all the information you need about building your own granny flat. From what size they are to how much it costs, we have it all! So check out our blog post now and see if we can help you find a company that will work with your budget and needs.

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    Ultimate List of Granny Flat Builders in Sydney

    Absolute Granny Flats Sydney 


    1300 580 176

    Absolute Granny Flats is a family business that has been constructing Granny Flats, Homes and Cabins for over 40 years. We’re are a dedicated team of professional granny flat builders with all the expertise of a giant corporation packaged into a local and friendly team. We have over 40 years of valuable and practical experience, and we are constantly learning how to be better. We specialise and operate in all areas of Sydney.


    Trusted granny flat builder in Sydney for over 40 years, we’ve built over 1200 granny flats since 1979.

    With over 100+ fully customisable granny flat designs to choose from, we’ve seen it all and done it all, so if you’re looking for a high-quality, affordable granny flat builder, you’re in the right place!




    At Absolute Granny Flats, we specialise in the design and construction of affordable, modern and versatile granny flats Sydney wide. Our team are dedicated to providing just that; a superior range of modern granny flats.

    Whether it be one, two or three bedrooms, there is a flat to suit anybody and any situation. At Absolute Granny Flats, we’re an established in Sydney, New South Wales, who are committed to providing comprehensive and integrated granny flat construction.



    A detached granny flat is a standalone secondary dwelling on a block that already contains the main dwelling. Building a detached granny flat can be perfect to use as an investment, as it has a separate entryway to your main house and, most often, a fence between the two buildings to create more privacy for your family or tenants.


    An attached granny flat is joined to the main dwelling on the property and is designed to fit seamlessly with your home. By altering the orientation of the granny flat, we can either maximise your privacy or increase the interaction between the occupants.


    Did you know you can build a granny flat with a garage attached? Well, you can! The State Environment Planning Policy (SEPP) permits a granny flat to be built with an internal living space of 60m2.


    Two-story granny flats are starting to become a lot more popular as investors and families are realising the potential of placing one of these homes in their backyard! Two-story granny flats come in different shapes and sizes, however, like single-story granny flats, they are restricted to 60m2 of internal habitable space.



    Absolute Granny Flats are dedicated to providing our clients with high quality, well-designed homes and granny flats. As the leading experts in the industry, we have a highly skilled and qualified team with over 100 years of combined experience spanning three generations.


    Since 1979, Absolute Granny Flats have been Australia’s choice for reliable granny flat builders. Sydney based, you will find outstanding value for money when you choose us for your granny flat construction. Absolute Granny Flats offer relocatable granny flats, temporary housing options, and unmatched advice. Our experts can assist in customising our one, two, or three-bedroom granny flat floor plans in our Melbourne factory to your specifications.


    Our diverse range of floorplans and our ability to custom build sets us apart and give our clients the advantage. Come and experience the Absolute difference with many amazing designs on display and a team of highly qualified building consultants on hand.



    Looking into building a granny flat for your home but not sure how to go about the process? Absolute Granny Flats specialise in building granny flats and will work with you through the entire process, from concept to actualisation. Our custom granny flats are created to suit your needs and are designed to appease your concerns about the cost of building a granny flat.


    Our goal is never to just build a building, but we strive to achieve the best result in all areas of the customer journey, from the initial enquiry to the completion of the granny flat and beyond! Another we are set apart from the crowd is our fixed price contract quote combined with out extensive inclusions for no extra cost.

    With great pride taken in every build, Absolute Granny Flats will ensure each and every client receives the build of their dreams. Looking at building an affordable granny flat, a sleepout cabin or your first home? Or, do you need to find the perfect accommodation cabin for your guests? Look no further! Based in Sydney, we’re your trusted partner in installing and delivering that valuable extra space for your property anywhere in New South Wales.

    Jct Group Granny Flat Builders Sydney


    0449 557 7545

    JCT Group Pty Ltd is a family-owned & operated Construction company with more than 15 years of experience in the construction field. We pride ourselves upon sound business practices and high ethical standards.

    JCT Group has managed and erected a variety of buildings like granny flats, houses/Duplex, triplex, and home extensions to the delight of its clients. Commercial and remedial works are also an integral part of our business.

    A granny flat can create that warm and cosy home atmosphere. The popularity of granny flats is constantly increasing in Australia. As our population increases, the availability of residential space around cities is becoming less, and the cost of living is growing simultaneously. Granny flats are the best solutions for both families and investors.

    Building a granny flat as a secondary or an alternate house is becoming an increasingly common investment. We pride ourselves on delivering stunningly finished granny flats to our clients that consist of 1, 2 or 3 bedrooms. With so many packages available at just group that varies from brick veneer, acrylic renders to vinyl cladding. Get in contact with us to tailor a granny flat that will suit your style and budget.

    Inspire Concrete Granny Flat Builders Sydney



    Granny Flat Builders Sydney

    Inspire Concrete is one of the most trusted and reliable granny flat builders in Sydney and its surrounds. We take pride in being your go-to concrete contractor for the highest quality design, construction, repair, and maintenance of granny flats Sydney residents have come to love. We have highly skilled and experienced concrete specialists who have worked on many granny flats for truly happy and satisfied clients.

    Granny flats are designed for one or two persons. In simple terms, a granny flat is a self-contained small living area and is often located on the grounds of a home that houses a single family. A granny flat is often detached or attached to the primary building. We have worked on many kinds, from the common backyard granny flats to the unique portable granny flats.

    Granny Flat Builders FAQs

    A granny flat is a small, self-contained home on your property that’s separate from the main house. Some people build granny flats above a garage or in their backyard, and most come with their own bedroom, bathroom, kitchen, lounge room and laundry.

    But don’t let the name ‘granny flat’ deter you, they’re not just for the elderly. Younger investors are now building granny flats to boost their property’s value through short-term rentals and extended lease agreements.

    If you’re wondering whether a granny flat will increase the value of your property, the answer is yes - but only if it complies with all local council regulations.

    If you think your house will be more practical and better to live in with an extra independent living space out the back, chances are a potential buyer will think the same thing.

    In many cases, a granny flat can add significantly to the value of your property. However, you’ll need to consider a range of variables when calculating your return on investment, including the size of the granny flat, its location and how much it costs to build.

    Granny flats can also be used as an investment property to generate rental income for you and your family. They’re relatively cheap to buy or build, easy to maintain, and provide a steady income source. 

    Tips for getting the most out of your granny flat investment

    • Do your research. Before adding a granny flat to your property, find out whether it will be a viable investment. Consider council regulations, the demand for rental properties in your area and the cost of installing a granny flat before you make your final decision.
    • Get quotes. Get accurate quotes from builders and contractors to form a clear picture of exactly how much the build will cost.
    • Loan options. If you need to borrow money to finance your granny flat investment, speak to a mortgage broker about your borrowing options. If you have sufficient equity in the property, you should get the money you need by increasing or refinancing your existing loan.
    • Adding a granny flat to an investment property. While the most common approach is to add a granny flat to your own property, you can also build a granny flat on an investment property. If this is the case, you’ll need to consider the cost of maintaining both properties, the potential rental yield, and the effect that adding a granny flat might have on the demand for the main dwelling.
    • Be consistent. If you want the granny flat to add value to your property, ensure it matches your existing home and doesn’t look like an afterthought. It’s also essential to ensure that the granny flat doesn’t dominate the garden or take too much outdoor space.

    A granny flat can be a sound investment if you’ve got enough space and the right property. Just be sure to research your options and learn more about the risks involved before deciding whether it’s the right investment opportunity for you.

    A granny flat will need council approval, planning permissions and possibly inspections from an engineer and pest control expert.

    Also, dealing with tenants could impact your time, money and energy, which is something to consider before building a granny flat investment on your property. But with the right planning and enough extra room, building a granny flat might be a smart (and dare we say modern) investment option for you.

    Modern housing demands have seen property owners grow more creative as they aim to maximise space and profits. Building a granny flat is among the growing trends developed by property owners over the last couple of years.

    A granny flat is a housing unit that caters for the needs of elderly persons in the community. Such units, therefore, have specially tailored facilities that make life easier for the elderly.

    How do property owners benefit from building such flats? Such buildings not only help to address a social demand but also carry monetary value for property owners.

    • Additional Income
    • Adds Property Value
    • Keeping Families Together
    • It is A Flexibility Structure 
    • Downsize into Granny Flat
    • Turn It Into A Guest Room

    Property owners around the world are getting more creative with how they use their space. One of the common purposes is to have maximum utilisation of available space while getting great value for money.

    So whether the granny flat in your property brings in extra income or not, it will certainly be a valuable addition to your home. 


    Aussie Granny Flats Builders Sydney


    0418 338 593

    As custom builders and designers, we offer an exciting opportunity to build a residence that reflects your individual needs and lifestyle. Our builders and designers work together, offering you faster delivery and less stress as your custom Granny Flat is built to schedule and within budget.

    You will only need to deal with one company from the day our pencil touches the paper to the day we hand over the keys.

    Once we have settled on the design strategy with you, we are able to expedite approvals with all building authorities, get your project into construction and achieve a completed result that meets your timing expectations.

    Our builders and designers work together, offering you faster delivery and less stress as your custom Granny Flat is built to schedule and within budget.

    All Custom Granny Flats Builders Sydney


    1300 669 741

    Originally from a family of builders that migrated from Italy in the late 50′s, we pride ourselves on producing quality work from start to finish. Taught in the family business by the masters of the trade, old school generation of workers that learnt the hard way to understand that experience, hard work and a strong work ethic is vital to the success of any business, more so within the building trade. This trade requires hands-on craftsmanship and attention to detail. It is more than a trade. It is an art.

    "As a family man with 3 (now adult) children ranging from 20 to 34 years, I am well aware of the need for space at home & the pressures of a struggling economy. After 30 years in the building game, I got into the granny flats business, as I truly believe it to be an untapped niche and a viable homeowner solution for many different circumstances. I see it as not just a solution but a lifestyle choice for our clients. My vision is to build quality granny flats that are affordable yet made from the finest materials to ensure they are durable & quality homes. A granny flat should be viewed as an extension of a home. It deserves the same attention & quality materials you would use in building your home, and that is what we do at All Custom Granny Flats. From concept to completion."

    RB Granny Flat Sydney Builders


    0413 128 441

    We are currently focusing on an area of the market that we felt was lacking - customer service and satisfaction. Larger companies are focused on construction but generally lack truly personal customer service, whereas smaller companies, while customer-focused, appear to have less construction knowledge and are less up to date with current products and trends. We solicit extensive feedback from our clients and take pride in providing both high-quality workmanship and unparalleled customer service.

    We are up to date on new goods and construction trends and have a strong commitment to our customers. We frequently go to building trade events and expos, and we work closely with our product representatives and suppliers.

    We enjoy redesigning and redecorating homes. Allow us to take care of all of your concerns while you relax. Our design professionals provide FREE consultations as well as beautiful design advice for your home. We are here to provide you with a premium solution every step of the way, no matter how large or small your design is.

    Country Granny Flats - Sydney


    1300 030 475

    It's a wonderful gesture to assist your family by allowing them to build and live on your property. You'll have the convenience of having them nearby while also having privacy. It could be a retiring parent, a young couple just starting out, or a single parent in need of a low-cost living arrangement.

    A Granny Flat is an excellent investment vehicle. Most investors earn a 17% annual return on their granny flat investment. In most cases, this is sufficient to make a property cash flow positive. The extra income can help you pay off your mortgage faster.

    Downsizing, living in the granny flat, and earning an income from the main house... all without the cost of selling and moving... is possible with a granny flat.

    A granny flat is an ideal way to extend family living for growing families who like where they live and don't want the added expense of selling and moving. A granny flat can be used as a home office, hobby space, or guest room for visiting family members.

    Sydney Building & Construction Group - Granny Flat Builders


    02 9636 7141

    Sydney Building and Construction Group is a well-known construction company that specializes in home construction, renovations and extensions, landscaping design and construction, and commercial development. In addition, we offer general labor and maintenance services.

    Our company is built on high-quality workmanship and materials. It is critical to our reputation. Our Quality Assurance Guarantee covers all of our work, giving you complete peace of mind.

    We will take the time to truly understand your unique requirements and make your vision a reality. From project conception to completion, our expert team builds with integrity and pride to ensure a smooth and stress-free process.

    We offer a flexible range of Granny Flat packages to suit every budget at Sydney Building and Construction Group. We would be delighted to walk you through the various options and assist you in selecting the package that best meets your specific requirements.

    Creative Living Granny Flats Builders Sydney 


    02 9654 0841

    With everything becoming increasingly expensive, it is becoming increasingly difficult for young couples to save for a down payment on a new home. It would be much easier to come up with $10,000 for a down payment on a brand new granny flat.

    A low-cost method of providing a brand new home within your property for elderly parents or adolescent children. It is a simple way to give them independence and privacy while keeping them close to home and in a secure environment.

    Have you ever considered working from home and saving money on gas, tolls, car expenses, rent, parking, and office leases? A brand new home office could be built in your backyard for a fraction of the cost of a commercial office, saving you money on all other expenses.

    Ark Granny Flats N.S.W.


    0449 637 362

    ARK Granny Flats can provide you with extra space in your existing home without the need to purchase a new one. This space can be used by your children, elderly parents, or even as a secondary source of income. We have a variety of established and affordable plans from which to choose. If you require a one-of-a-kind design, we can connect you with designers, drafters, and architects as needed for your project.

    We take pride in delivering the highest quality construction and finishes in the most cost-effective and stress-free manner possible. We communicate with you throughout the development process to ensure that your needs are met at all times.

    Our pre-existing designs include some exciting features that you can customize with the help of our builders and designers.

    Granny Flats For Less (Gffl) Sydney 


    (02) 8605 8445

    Granny Flats For Less (GFFL) evolved from Elegant Homes N.S.W., a sister company primarily focused on primary residential buildings.

    We use this analogy to build a strong relationship with our clients because building a house begins with a solid foundation. At GFFL, homeowners come first, and providing homes that provide "feel good" moments brings us great joy, motivating us to provide more of these moments in the future. We have long-standing relationships with our building regulators, suppliers, and contractors because we keep up with the latest building methods and technologies.

    The shared knowledge and constant communication have greatly improved our construction and approval processes, resulting in a more seamless transition from home buyer to homeowner. We intend to use sustainable building methods that provide a solid long-term residence while also being sustainable. We can ensure that any disruption is greatly reduced by providing ongoing training and induction to our employees and subcontractors. Why not get in touch with our helpful staff to learn more? We'll be sure to tell you about our history, construction, and approval processes!

    A1 Granny Flats Builders Sydney


    1300 941 045

    At A1 Granny Flats, we take pride in every project we undertake; this is our passion, and it shows. As a result, we can offer you something that most builders cannot: a clear, step-by-step process that has been perfected over 30 years of experience.

    Chesterfield Constructions Granny Flat Builders Sydney


    02 8065 3312

    When you sign the contract, you will be assigned a dedicated Chesterfield Account Manager. During the construction, your Account Manager will be your single point of contact for any questions you may have. We don't believe that every customer is the same and that there is a one-size-fits-all solution. Instead, we construct Granny Flats as needed to guarantee client happiness.

    We will make informed recommendations while also handling the paperwork required to obtain relevant authority approvals quickly and easily. Allow us to handle the entire process from start to finish and expedite completion so you can start reaping the benefits right away.

    Chesterfield Project Managers, Builders, and Tradesmen can start working after the design has been authorized. We only use the best materials and only employ competent builders who are completely insured. We have tried and tested processes for completing a Granny Flat build in a timely manner. As a cohesive team, we can ensure that our projects are of the highest quality, completed on time, and within budget.

    Half Priced Granny Flats Builders Sydney


    (02) 9822 9989

    We have refined our process to ensure that our customers only pay for what is absolutely necessary. We only choose seasoned craftspeople to build our granny flats because we firmly believe that a building's quality is only as good as its constructor. All of our granny flat designs are produced internally by licensed architects. We are half-priced because we run on time and pass on the savings to our customers.

    We understand that building a granny flat can be an intimidating and confusing process for most people, which is why we take pride in providing first-rate customer service from start to finish. Our customer service representatives are only a phone call or email away and ready to assist you with any questions you may have.

    One of the most important stages of your project is ensuring that your design is done correctly - and that it is appropriate for you. Our expert design team not only understands this; it is their sole focus and the foundation for each project.

    Outdoor Sydney Granny Flats


    02 8798 2121

    Sydney's top granny flat designers and installers. Visit the showrooms in Beverly Hills, Sydney, St. George, and Sutherlandshire. We can help you create a granny apartment that perfectly suits your property and family's requirements. Our dependable team of skilled tradespeople installs our high-quality Bluescope steel products throughout Sydney and Australia.

    Worthington Homes Granny Flat Builders Sydney



    Our modern flat designs can generate passive income while increasing the value of your property, whether you are an owner-occupier or an investor. Due to their small size, flats can be used as a guesthouse to lodge visitors and family without taking up space in your freshly constructed home.

    For owner-occupiers, first-time home purchasers, investors, and real estate developers, we have extensive expertise in Sydney developing high-quality granny flats.

    Kurmond Homes Granny Flat Builders Sydney


    1300 764 745

    "Peter and I like to get our hands dirty. Peter is in charge of sales and design, while I am in charge of the construction teams "Michael says Both brothers maintain contact with their clients. While Michael attends frame inspections and client handovers, Peter walks prospective customers through the sales process.

    Michael constructs all of the company's display homes in order to set the standard for his supervisors in order to ensure that homebuyers receive the highest quality home. Michael claims that it also helps him stay in touch with suppliers and trades.

    A cozy two-bedroom self-contained apartment with multiple uses. Granny's downsizing home, independent living for grown-up children, or rent it out for extra income.

    Inhouse Granny Flats Builders Sydney


    9659 9045

    Our knowledgeable builder will be there to address any concerns you may have and provide you with qualified guidance along the journey.

    With the guidance of our builders and architects, we provide every client the chance to create their granny flat layout so that it fits them and their land.

    I-build Building Solutions - Granny Flat Builders Sydney


    1800 679 245

    Our structures are incredibly fashionable, clever, adaptable, and beautiful homes made to support excellent living and working circumstances in nearly any area. Our products can be delivered to any country in the world. Rapid assembly.

    A totally self-contained home addition or secondary residence constructed on the same parcel of land as the primary residence is referred to as a "granny flat." In essence, it's a second, smaller house on your property that would be excellent for aging grandparents to live nearby or for a growing family in need of a teen hideaway.

    In most jurisdictions, including NSW and VIC, local councils will set a granny flat's maximum size limit at 60 square meters. However, WA (70 square meters) and ACT have more lax regulations (90 square meters).

    Master Granny Flats (MGF) Builders Sydney


    1300 643 545

    To produce the finest craftsmanship, we blend the highest caliber artistry with the most profound understanding. Our concrete raft slab is constructed by a skilled internal concreting team. We are giving you the strongest foundation possible as a consequence.

    Communication between our team members and our clients distinguishes Master Granny Flats from other companies. Our internal design team will make sure you are continually informed of the status of your project!

    Smart Choice Granny Flats Builders Sydney 



    One of our builders will be your first encounter on the property. To educate you on the site conditions and building process, we choose to provide a personalized experience to a professional with practical knowledge. To give you piece of mind that you are being taken care of from beginning to end, this builder will be assigned to you from the first meeting until the time the keys are handed over.

    Your granny flat will be specially designed to fit your unique block shape, desired style, and needs. We have a very flexible design approach to accommodate all granny flat objectives and financial constraints.

    Our knowledgeable team will offer suggestions to help you save money; we won't try to upsell you on unnecessary items; instead, we sincerely want what's best for you and will only offer advice that will be helpful to you. Our excellent customer service and moral standards are what keep our clients coming back to us for their investment properties time and time again.

    Doumit Homes Granny Flat Builders Sydney 


    02 8812 3045

    Any project must begin with a cost estimate. During the design phase, cost planning enables us to track and manage the cost of your construction or refurbishment. Additionally, we've built ties with suppliers that guarantee really affordable pricing from the most qualified individuals.

    In order to manage a creative process and produce an appealing result, design management helps you manage your project's design, strategy, and supply chain strategies. To keep our work as individualized as feasible for your comfort and convenience, our projects can involve the full structure or functioning components.

    This is the comprehensive planning, coordinating, and management of a project from start to finish. It aids in ensuring that we fulfill your request to build a solution that is both functionally and financially viable. We also effectively coordinate and manage the planning, design, estimating, contracting, and construction phases of the project to maximize the efficiency of all available resources. To put it another way, we want your time with us to be stress-free.

    Granny Flat Approvals Sydney


    1300 205 045

    The advantage of eliminating the middleman is yours. Additionally, you are interacting directly with professionals who are knowledgeable in their field rather than salespeople. You'll discover that we are tenacious in our pursuit of helping our clients save time and money.

    We at Granny Flats Sydney believe in paying attention to our customers. Together, we will create a modern, low-maintenance, energy-efficient home with high-quality fixtures all over. Granny Flats Sydney's key features include ergonomically designed bathrooms, bedrooms that are the right size for you, chic kitchens, and roomy living and dining areas.

    We can even construct a home larger than 60 square meters. If you need additional space, we can provide different Patios, Verandas or Awnings to your new granny flat, which still meets the 10-day approval legislation. We make an effort to foster a happy, healthy family environment as well as a desirable rental for our investors.

    Granny Flat Builders Sydney


    0423 407 278

    We offer Sydney's most affordable granny flats at 100% fixed turnkey costs, and we won't be outbid on either quality or price.

    At extremely reasonable and competitive pricing, granny flat builders have been constructing custom-designed granny flats and kit houses, as well as standard homes, additions, studios, and home offices.

    Croydon Constructions - Granny Flat Builders Sydney


    0414 716 345

    Croydon Constructions is a successful company that is expanding. Our company was founded on conventional principles, and it has been successful for both us and our clients. We like to renovate and restore houses. We think that excellence in quality is essential, and as builders, we take particular satisfaction in a job well done. We enjoy what we do, which motivates us to construct with a distinctive quality.

    Do you want some suggestions? We provide no-cost consultations to go through your ideas and assist you in starting the project. Additionally, we can help you get it approved and provide an estimate of expenses for various possibilities.

    In addition to building homes and businesses, Croydon Constructions also provides a wide selection of renovation ideas and home upgrades in Sydney, including bathroom renovations catered to the needs of each person.

    Rescon Granny Flat Builders Sydney


    1300 110 054

    We complete every project on time and within budget by leveraging our extensive network of seasoned partners. Every RESCON project is guided from conception to completion by our simple five-stage methodology, which ensures that every step meets our exacting quality standards.

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