CDC-Ready← All service areas
CDC-Ready 
CDC-Ready
CDC-Ready
CDC-Ready
CDC-Ready
CDC-Ready
CDC-Ready
CDC-Ready
Service area · We're award winning builders
Granny flat builders Penrith
Granny flats can be an excellent addition to your property.
Local builders
Why build a granny flat in Penrith?
Penrith and its surrounding suburbs sit at the western edge of the Sydney basin, where large suburban blocks and steady population growth create ideal conditions for a granny flat.
Generous land means room to build a full-size second dwelling, and strong local rental demand turns that space into a reliable income stream. 5 Star Granny Flats manages design, approvals and construction across Penrith and the Blue Mountains foothills, so your project stays on track from the first site visit to handover.
As practical, local granny flat builders in Penrith, we understand both the opportunity and the quirks of building out this way. Many blocks qualify for the fast-track complying development path, and we help you make the most of it. Some sites near the foothills bring slope and drainage to manage, and that is where our experience pays off.
200+SYDNEY BUILDS
15+YEARS EXPERIENCE
6-YEARSTRUCTURAL WARRANTY
14–16WEEKS TO BUILD
Approvals
Approvals and Complying Development in Penrith
A granny flat in Penrith usually follows one of two approval paths. A Complying Development Certificate is the faster route for blocks that meet the standard planning rules, which suits many of Penrith’s larger, flatter lots. A Development Application through Penrith Council applies where a site sits outside those rules or within a flood or bushfire zone, both of which appear in parts of the area.
As a guide, complying development needs at least 450 square metres of land, a 12 metre frontage, a 3 metre rear setback and 0.9 metre side setbacks. We assess your block, including any slope, drainage or zoning issues, and manage the entire approval for you.
CDC, Complying Development Certificate
Fast-track — The quicker approval path for blocks that meet the standard rules, backed by our 4-week approval guarantee.
How approvals workDA, Development Application
Via council — For sites outside the standard rules or in special planning zones. We prepare, lodge and manage it through Penrith Council for you.
How approvals workComplying development
Complying development at a glance
We check every one of these factors during your free site inspection, including slope, drainage and existing services.
450m²MINIMUM LAND SIZE
12mMINIMUM STREET FRONTAGE
3mREAR BOUNDARY SETBACK
0.9mSIDE BOUNDARY SETBACKS
Designs
Granny Flat Designs That Work on Penrith Blocks
The larger blocks common across Penrith give you plenty of design freedom. Two bedroom layouts of around 60 square metres are a popular choice here, offering strong rental appeal and comfortable family living. Explore our granny flat designs to compare floor plans, then talk to us about tailoring one to your block, its orientation and its outlook toward the foothills.
Standard inclusions cover a floor to ceiling tiled bathroom, soft closing cabinets, a separate electricity meter and quality appliances, so your granny flat is complete and ready to use on handover.
Browse all granny flat designsOne Bedroom Flats
Great for people on a small budget and with limited space. It can easily accommodate one or two adults.
1 bedroom designsTwo Bedroom Flats
Ideal for small families for two to four people. This can be rented out because they're relatively spacious.
2 bedroom designsThree Bedroom Flats
This design is for people who want larger spaces that can accommodate 3 to 6 people. You need room on your property to build such a flat.
3 bedroom designsCustom Flats
We understand that different clients have different requirements so we offer custom design options as well. You can meet with our draftsmen and plan a design that suits your requirements well.
Custom built granny flatsIf you have questions and need to know more about our designs, you can visit our FAQ page or give us a call. Our experts are always willing to answer your questions and help in any way they can.
How it works
Process for granny flats in Penrith
Adding a granny flat in Penrith can be pricy so its important to work close with a company that will deliver the quality you require. At 5 Star we have high-quality standards and have tried and tested many materials on our projects to get to where we are.
1Phase 1
Is about qualifying your land in Penrith to ensure it is eligible for a granny flat build.
2Phase 2
One of our expert team members will come out to the property for a free site visit and consultation. We will discuss your desired granny flat construction in Penrith
3Phase 3
Will be after the acceptance of the quote which will move you into the floor plans and survey plan.
4Phase 4
You can either choose from the state-of-the-art designs that we offer all our clients or we can work together with a draftsman to develop a custom solution to suit your needs. Once that is complete, we will handle the certified approval for your granny flat in Penrith
5Phase 5
We will begin construction with a team of qualified subcontractors, all managed by our experienced site supervisors. This approach guarantees high-quality workmanship and ensures that every phase of the construction is completed promptly and according to schedule.
Our goal is to always deliver seamless service and outstanding results for your granny flat Builders Penrith
See the full processWhy choose 5 Star
Why Penrith Homeowners Choose 5 Star Granny Flats
Penrith homeowners choose us because we build to last and we handle the hard parts. With more than 15 years of experience and hundreds of 5-star reviews, we know how to deliver a quality granny flat on time and on budget. Every build is backed by a 6-year structural warranty and our 4-week approval guarantee.
Our display home at 2 Mary St, Blacktown is a short drive from Penrith, so you can see and feel the standard of our work before you commit. We are a family-owned Australian business, and we bring that personal accountability to every Penrith project.
Penrith is one of Western Sydney’s key growth centres, with major investment in transport, health and education drawing more residents to the area each year. That momentum keeps rental demand strong and supports property values over the long term. A granny flat lets you tap into that demand from land you already own, and our team helps you plan the build to get the most from it.
Quality
We always focus on quality, regardless of the budget because we want to build sturdy and long-lasting flats. We use the best possible materials and double-check everything to ensure you don't face any problems down the line.
Pricing
Our billing is honest and straightforward so you don't have to worry about any hidden costs. Our rates are very reasonable and we're one of the most affordable granny flat builders in Penrith.
Unique Designs
Our designers are well-versed in all modern design concepts and can create a space that suits your preferences. If you want an open, contemporary design, we can create such a space for you. If you prefer the English-cottage look, just let us know.
Pricing
Granny Flat Costs in Penrith: What to Expect
The cost of a granny flat in Penrith depends on your design, your site and your finishes. Blocks near the Blue Mountains foothills can carry slope or drainage works that affect the figure, which is exactly why we quote after inspecting your land rather than before. You receive a clear, itemised price with no hidden extras. Ask us how much does a granny flat cost for your specific block.
Where we build
Suburbs We Build In
We build granny flats across Penrith and the wider area, including Penrith, Emu Plains, St Marys, Kingswood, Glenmore Park, Cranebrook and Jordan Springs. Wherever your block sits, our team can assess it and design a granny flat to suit.
Each of these suburbs brings its own mix of block sizes and site conditions, from the flat, regular lots of the newer estates to the older, larger blocks closer to the river and the foothills. Because we have built right across this part of Western Sydney for years, we know what to expect from local soil, drainage and access, and we plan every Penrith build around those realities from day one.
See every suburb we build inGot questions?
Penrith FAQs
Can you build on a sloping or difficult Penrith site?
Yes. We have handled challenging sites with slope and drainage for years, which is common near the foothills. We assess these conditions during your free site inspection and plan for them from the start.
What is the difference between CDC and DA in Penrith?
A Complying Development Certificate is the faster approval for blocks meeting the standard rules, while a Development Application goes through council and suits sites in flood, bushfire or special zones. We advise which applies to your block.
How long does the build take?
Most granny flats are completed within 12 to 20 weeks after approval, helped along by our 4-week approval guarantee.
Is there strong rental demand in Penrith?
Yes. Penrith’s growth and its role as a regional hub support consistent rental demand, making a granny flat a sound investment.
The range
Our granny flat designs
CDC-Ready CDC-Ready CDC-Ready CDC-Ready CDC-Ready CDC-Ready CDC-Ready CDC-ReadyReady to build?
Book a free site inspection or call our team on 1300 843 921.
Come visit
Our display home
Visit our display home to experience the quality for yourself, touch the finishes, test the materials, and explore the full range of design options available to you. You'll speak directly with our experienced granny flat designers and visualise what your own space could look like.
📍 2 Mary St, Blacktown NSW 2148
Quality materials
Our partners
