Granny Flat Builders Blakehurst
Monstructions specialises in granny flats Blakehurst, building premium secondary dwellings for homeowners in this exclusive Georges River waterfront suburb. Our licensed team proudly serves Blakehurst and nearby suburbs including Hurstville, Kogarah and Oatley, handling everything from DA approval through to handover.
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🔥 June Special! Free site inspection + council feasibility check included. Limited to 3 jobs this month. Call 1300 098 730
IS YOUR PROPERTY READY FOR A GRANNY FLAT?
Monstructions specialises in building granny flats in Blakehurst that complement the prestige waterfront homes and elevated properties that define this exclusive Georges River enclave. We’re proud to serve homeowners throughout Blakehurst and nearby suburbs including Hurstville and Kogarah with our licensed team handling everything from DA approval through to handover.
Blakehurst Granny Flats Built Around Your Property
Blakehurst features predominantly prestige homes built from the 1960s through to contemporary architect-designed residences, many positioned on generous blocks with water views or riverfront access. These larger allotments, typically 600 to 1000 square metres, provide excellent opportunities for quality granny flat additions without compromising the main residence or outdoor entertaining areas. The elevated topography and spacious rear yards characteristic of Blakehurst properties make them ideal candidates for self-contained secondary dwellings.
We service Blakehurst, Hurstville, Kogarah, Oatley, Carss Park and Connells Point with granny flat designs tailored to prestige waterfront properties and elevated blocks. Our team has extensive knowledge of Georges River Council requirements and specialises in premium one and two-bedroom granny flats that complement the established character of these sought-after suburbs. From contemporary designs to more traditional facades, we ensure your granny flat enhances your property’s value and appeal.
The Blakehurst property market remains strong, with median house prices exceeding $2 million driven by waterfront appeal and proximity to the CBD. Rental demand is consistently high, with quality granny flats achieving $550 to $700 per week, reflecting the area’s prestige status and amenity. Building a granny flat now allows homeowners to capitalise on rental returns while adding substantial value to their riverside investment property.
Our Granny Flat Services
Whether you’re adding a studio for rental income or a full 2 bedroom dwelling for family, our licensed team delivers quality granny flats across Sydney.
Detached Granny Flat
A fully self-contained dwelling separate from your main home.
Attached Granny Flat
Built onto your existing home, sharing one wall.
Studio Granny Flat
A compact, cost-effective single-room secondary dwelling.
2 Bedroom Granny Flat
Spacious secondary dwelling perfect for family or rental income.
Garage Conversion
Transform your existing garage into a fully liveable granny flat.
Council Compliant Builds
We handle all DA approvals and council paperwork for you.
Benefits of Granny Flats
Investing in a granny flat is one of the smartest decisions you can make as a homeowner.
Increased Property Value
Adds $150,000+ to your home’s value
Generate Rental Income
Earn $400-$600+/week from a quality granny flat
House Family
Keep loved ones close with their own private space
Fast DA Approval
We handle all council paperwork for you
Get Started with Monstructions Today!
Are you ready to transform your land into a beautiful and functional space? Contact us today for a free quote and let our granny flat experts bring your vision to life. Experience the quality and dedication that set us apart from the rest.
Our Renovation Process
Initial Consultation
We start with a free consultation to discuss your ideas and requirements. Our team will guide you through the design possibilities, ensuring your vision is captured.
Design & DA Approval
We design your granny flat and manage the full council approval process.
Construction
Our licensed team builds your granny flat to the highest standard.
Final Inspection
Thorough inspection before handover to ensure everything is perfect.
How Much Does a Granny Flat Cost in Blakehurst?
Every granny flat is different. Click the button below to hear back from us within 2 hours!
Studio Granny Flat
Everything you need in a compact, smart design.- Single open-plan living space
- Kitchenette
- Bathroom
- Fully self-contained
- Council compliant
- Fixed price contract
- Tailored to your budget
1 Bedroom Granny Flat
One bedroom design for rental income or family.- Separate bedroom
- Full kitchen
- Full bathroom
- Living area
- Council compliant
- Fixed price contract
- Tailored to your style & needs
2 Bedroom Granny Flat
Two bedrooms for maximum space and rental return.- Two separate bedrooms
- Full kitchen
- Full bathroom
- Living area
- Council compliant
- Fixed price contract
- Fully customised to your vision
Why Blakehurst Homeowners Choose us?
As leading granny flat builders in Sydney, we pride ourselves on our commitment to quality and customer satisfaction. We make building simple, stress-free and done right the first time.
10+ Years of Building Experience
Our team has delivered hundreds of successful builds across Sydney; on time and within budget.
On Time, On Budget
We keep you informed at every step and never surprise you with hidden costs.
Trusted by Sydney Homeowners
From Sutherland Shire to the North Shore, homeowners trust us to deliver.
Licensed and Fully Insured
Every job is handled by licensed professionals. You get quality workmanship backed by full insurance.
Don't Take Our Word For It
"It took me a couple of months of research before choosing Monstructions. They have been nothing but amazing. They were extremely helpful throughout the process, made great suggestions to help me overcome some obstacles, assisted with any changes I wanted made to the flat and was very quick with responses. They took care of all the permits and made it was very easy and smooth process. Quality finish and craftsmanship. I'm so happy and I would highly recommend them to everyone. Thank you to the team for completing the flat in a matter of months, thank you for giving me a beautiful space I can call home. I absolutely love it."
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Joanne T.
"We recently received handover of our granny flat and we all couldn't be happier! From the initial meetings about design and budget right through to completion, everyone has been an absolute pleasure to deal with. The project was delivered early, on budget and the finishes are immaculate. My mum is thrilled to move into her house, we highly recommend Monstructions to anyone looking to build a granny flat!"
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Kimberly R.
"We found our experience with Monstructions to be excellent, from start to finish. Communication lines always open, clear and organised, delivered on everything they said they would in a timely fashion. The quality of workmanship is outstanding, and the final result exceeded our expectations. Our new space is not only beautifully designed but also incredibly functional. Thank you for making this such a positive experience!"
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Chris C.
Products we use
FAQS
Got a question?
How much does a granny flat cost in Blakehurst?
Granny flat costs in Blakehurst start from $120,000 for a studio, $150,000 for a one-bedroom, and $180,000 for a two-bedroom design. Final pricing depends on your block’s topography, selected finishes, and specific Georges River Council requirements. We provide detailed quotes tailored to your prestige property and design preferences.
How long does it take to build a granny flat in Blakehurst?
Development Application approval in Blakehurst typically takes 4 to 8 weeks with Georges River Council, followed by 8 to 12 weeks for construction. The total timeline from initial consultation to completion is generally 12 to 20 weeks, depending on design complexity and site conditions.
Do I need council approval for a granny flat in Blakehurst?
Yes, all granny flats in Blakehurst require either Development Approval or a Complying Development Certificate under NSW planning regulations. Monstructions handles the entire approval process with Georges River Council, ensuring your application meets all requirements and achieves timely approval.
Can I build a granny flat on a sloping waterfront block in Blakehurst?
Yes, many Blakehurst properties feature sloping sites, and we specialise in designs that work with the topography while maximising water views where possible. Our team assesses each block’s unique characteristics including setbacks, drainage and retaining requirements to create a granny flat that suits your elevated or sloping riverside land. We work closely with Georges River Council to ensure all slope and environmental considerations are addressed.
Do you service all areas of Blakehurst and surrounding suburbs?
We service all areas of Blakehurst and surrounding suburbs including Hurstville, Kogarah, Oatley. Call 1300 098 730 to discuss your project.


