3 Bedroom Granny Flat Designs & Prices

GRANNY FLATS

3 Bedroom Granny Flats That Feel Like Home

Compact doesn’t mean compromising on comfort or space. Our 3-bedroom granny flat designs offer expansive layouts that provide genuine comfort while maintaining the flexibility and independence of self-contained living.

Perfect for multi-generational families requiring extra space, established professionals needing dedicated home offices, or property investors looking to maximise rental yields, our designs deliver sophisticated living solutions that adapt to life’s changing demands.

At Summit Granny Flats, we understand that more bedrooms mean more possibilities. Our three-bedroom granny flat designs incorporate flexible floorplans, modern amenities, and superior build quality that delivers authentic family living right on your own property.

GRANNY FLATs

Innovative, spacious & designed around you

More space means more opportunity to create exactly what you envision. Whether you’re planning a comfortable retreat for extended family, establishing dedicated work-from-home zones, or developing a premium rental investment, our three-bedroom configurations offer the room and versatility to bring your ideas to life.

At Summit Granny Flats, we recognise that every property and family situation is unique. Our experienced design team collaborates with you to tailor your three-bedroom layout, optimising your available land, privacy considerations, and access to natural light. From architectural details to interior selections, we’ll guide you through creating a 3-bed granny flat that exceeds your expectations.

Built with an emphasis on quality construction and long-term value, our granny flats complement your main residence while providing a substantial, comfortable, and enduring living solution that serves your family for decades ahead.

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CUSTOM PERTH GRANNY FLATs

Custom 3 Bedroom Granny Flat Floor Plans

Discover a range of custom 3 bedroom granny flat designs created for Perth families, investors, and multi-generational living.

Each floor plan showcases smart use of space, functional living zones, and flexible layouts designed to suit a variety of block sizes and lifestyle needs.

Browse the gallery below to explore real client-inspired granny flat floor plans and see how Summit Granny Flats can tailor a 3 bedroom design to match your land, budget, and long-term goals.

Granny Flat, Rental Unit

Kasar

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3-Bedroom granny flats designed for you

Explore our comprehensive collection of three-bedroom granny flat designs featuring premium inclusions and superior finishes.

Download the Granny Flat Guide

Get an understanding of Granny Flat product options and how it can add value to your life, your family’s life and your property.

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Built around people

At Summit, we’re built around people, which means our clients, team and suppliers are at the core everything we do.We consider it a privilege to be part of your building journey, and so we want to document our partnership together.

Client stories

4.8 13 reviews

Booragoon

Elaine & Peter

Elaine and Peter invited us into their recently built farmhouse style home, based around their U-shaped alfresco. This stunning home boasts four bedrooms to cater for their eight grandkids, a large open kitchen and two living rooms, an entertainers delight.

Elaine & Peter's story

Treeby

Jasmine & Owen

As first time home-owners and first time builders the most important thing for us was building with someone we could trust and who we knew would support us along the way. Chris gave us this reassurance and he was true to his word - he helped us at every step of the journey and we are so grateful for his guidance.

Jasmine & Owen's story

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08 9317 0141

Head Office & Style Studio

242 Leach Hwy, Myaree WA 6154
Monday – Friday: 8am – 5pm
Saturday: 9am – 2pm
Sunday: Closed

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3 Bedroom Granny Flat Designs

3 Bedroom Granny Flats That Feel Like Home

Innovative, spacious & designed around you

Custom 3 Bedroom Granny Flat Floor Plans

Kasar

3-Bedroom granny flats designed for you

Download the Granny Flat Guide

Unlock content

Built around people

Elaine & Peter

Jasmine & Owen

Request an appointment

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