Business Details
15 Years
experience
Your Trusted Partner for Custom Home & Granny Flat Construction
P J Cook Building is a reputable, family-owned and -operated business established in 2011 on the NSW Central Coast. We specialise in delivering high-quality, custom-built projects including new homes, granny flats, duplexes, and dual-occupancy developments. With a strong reputation across the Central Coast, Newcastle, and Hunter Valley, our focus on quality over quantity ensures every project meets the highest standards of craftsmanship, functionality, and style. Our team, led by Managing Director Peter Cook, brings over 20 years of industry experience, combining expert knowledge with a hands-on approach to project management. We pride ourselves on transparent communication, meticulous attention to detail, and a commitment to exceeding client expectations.Our services include in-house design, approval management, and comprehensive project oversight, ensuring a seamless building journey from concept to completion. We work closely with clients to tailor designs to their unique needs, offering flexible solutions for modern living. Our dedication to quality is reflected in our 5-star reviews and a portfolio of projects that showcase our ability to handle complex sites, including bushfire-prone, sloping, and rocky terrains. By maintaining long-term relationships with trusted tradespeople and suppliers, we guarantee consistent quality and reliability. Our fixed-price contracts, structural warranties, and post-handover support further underscore our commitment to client satisfaction.
Services
Granny Flats
New Homes
Duplex Developments
Custom Designs
Approval Management
Project Management
Eco-Friendly Builds
Battle-Axe Block Solutions
Two-Storey Units
Investment Properties
Details
- Year established: 2011
Highlights and features
- Family-owned business with local expertise since 2011
- Specialise in complex sites including bushfire-prone and sloping blocks
- Transparent communication and fixed-price contracts
- Meticulous attention to detail with 6-year structural warranty
- Award-winning designs and 5-star client reviews
What people say
Excellent quality finish
Completed on schedule
Professional team
Transparent process
Highly recommend
Services
Granny Flat Construction
We design and build modern, self-contained granny flats tailored to your property and needs. Our solutions maximise rental income or family living space while maintaining compliance with local regulations. Each project includes in-house design, council approvals, and premium finishes for lasting value.
Custom Home Building
Our custom homes combine innovative design with superior craftsmanship for functional, stylish living spaces. We work closely with clients to create bespoke floorplans that reflect their lifestyle, using high-quality materials and energy-efficient construction methods across the Central Coast and Newcastle regions.
Duplex Development
We deliver duplex and dual-occupancy projects optimising land potential for investors and families. Our expertise includes navigating complex zoning requirements, creating separate living zones, and ensuring maximum return on investment through strategic design and efficient construction timelines.
Eco-Friendly Builds
Our eco-conscious construction incorporates solar-ready infrastructure, rainwater harvesting systems, and energy-efficient appliances. We prioritise sustainable materials and passive design principles to reduce environmental impact while maintaining modern aesthetics and long-term cost savings for homeowners.
Challenging Site Solutions
We specialise in constructing on bushfire-prone, sloping, and rocky sites using advanced engineering techniques. Our team ensures structural integrity and compliance while transforming difficult blocks into functional, valuable properties with innovative design adaptations.
People
Peter Cook
Managing Director & Licensed Builder
Peter founded P J Cook Building in 2011 with a vision for quality-driven construction. With over 20 years' experience and a licensed carpentry background, he oversees all projects personally, ensuring exceptional standards and client satisfaction through transparent communication and innovative solutions.
Jayden Deller
Principal Building Designer
Jayden leads our in-house design team, creating functional, award-winning plans tailored to client needs and site constraints. His expertise ensures seamless integration of aesthetics and practicality across all projects from concept to approval.
Questions
What types of properties do you specialise in?
We specialise in custom-built homes, granny flats, duplexes, and dual-occupancy developments across the Central Coast and Newcastle regions.
What is included in your granny flat builds?
Our granny flats include full turn-key completion with market-leading inclusions like high-quality finishes, Complying Development approvals, and energy-efficient features.
Can you build on challenging sites?
Yes, we have extensive experience working on bushfire-prone, sloping, and battle-axe blocks with tailored engineering solutions.
Do you offer fixed-price contracts?
Yes, we provide upfront fixed-price contracts with no hidden fees and a 6-year structural warranty for complete transparency.
How long does construction take?
Granny flats typically take 15-18 weeks after approvals, while new homes vary depending on complexity and size.
Can I customise designs?
Yes, we offer full customisation of standard plans or can build from your architectural drawings to meet specific requirements.
Reviews (4)
Meagan Gleeson
Aug 08, 2021
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Peter and his team, were very helpful and proactive to deal with. They took time to carefully consider the positioning of our granny flat on the block. They had plans to us in a timely manner, the project ran slightly ahead of schedule and with extensive details in the handover. All materials selected were supplied without hiccup. Peter was proactive in dealing with us, keeping us in the loop, providing progress photos and providing ideas for final landscape design, which we outsourced. Aeden from the team was always helpful and available to chat to if we had a question. I would not hesitate to
Julie Oldham
Jan 05, 2021
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Peter Cook Building company have given me a beautiful place to call home. Throughout the whole experience, Peter and his contractors showed their dedication to give me a beautiful final product. I found Peter to be a man of integrity, always communicating with me to check in with regular updates throughout the build. I highly recommend Peter Cook, if you are thinking about building a granny flat. He will help you to have your dream home. Many thanks Peter.
Sturt Family
Dec 15, 2020
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Positive:Professionalism,Quality,Responsiveness,Value
We presented Peter and his team with a small and challenging backyard to construct a custom-made granny flat. Today we have a first class construction with quality apparent throughout. We recommend you contact P J Cook Building to discuss your needs.
Service:Project management
We presented Peter and his team with a small and challenging backyard to construct a custom-made granny flat. Today we have a first class construction with quality apparent throughout. We recommend you contact P J Cook Building to discuss your needs.
Service:Project management
Jo Minter
Dec 09, 2020
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I am so very happy with my Granny Flat built by PJ Cook in Woodberry. The whole team onsite were courteous and professional at all times. The quality of my build is impressive. It took me over a year of looking at other builders before settling with PJ Cook. The only disappointment is that the slide out range hood was unobtainable, so I settled for a fixed one. I am sure I can live with that. Absolutely no hesitation to recommend them to anyone looking at building a granny flat. Handover is tomorrow. I am one very excited and happy customer. Jo
