Perth Design & Drafting Experts
Better Plans. Faster Approvals. Smoother Builds
PATRICK DE ROSSI
Building Designer / Registered Builder
I’m Patrick De Rossi, a building designer with over 17 years of experience in the WA building industry. I design homes that are practical, well-planned, and built for real life—not just something that looks good on paper.
Whether you're building from scratch, renovating, or developing, I focus on smart, efficient designs that maximise space, meet regulations, and avoid costly mistakes. I keep the process straightforward, from initial sketches to detailed construction drawings, so you can move forward with confidence.
Good design makes all the difference. If you’re looking for a functional, well-thought-out home that works for you, let’s talk.
Our Services
Residential Design
Our residential design services are tailored to meet your unique needs. Whether you're building your dream home, renovating, or developing an investment property, we ensure that every step of the process is seamless and stress-free. With a focus on precision and creativity.
Construction Drawings
Our construction drawings are the blueprint for your project’s success. With meticulous attention to detail, we provide the technical documentation required to move seamlessly from planning to building.
Multi Development
Our expertise in multi-development projects ensures you maximize the value of your property. From concept to completion, we guide you through every stage of the development process, offering tailored solutions to meet your needs.
Renovation & Extension
Transform your living space with our bespoke residential design services. Whether you’re building your dream home, adding an extension, or renovating for a modern update, we ensure a seamless and stress-free experience. Combining precision and creativity, we bring your vision to life with designs that truly fit your lifestyle.
Granny Flats
Maximise the potential of your property with our expertly designed granny flats. Perfect for extended family, guest accommodation, or rental income, our construction drawings ensure a smooth process from planning to completion. Built with attention to detail, your granny flat will be both functional and stylish.
C.A.F.S
Elevate your outdoor spaces with our specialized C.A.F.S. services. From practical carports and cozy alfresco areas to durable fencing and versatile sheds, we create structures that blend functionality with style. Whether you're enhancing your property or adding value, we’ve got you covered.
Get an obligation free quote
We only use the best software to deliver the best results.
At the core of our operations is a commitment to excellence. By leveraging industry-leading software solutions, we ensure every project meets the highest standards of precision, creativity, and quality. Explore the tools that empower us to deliver exceptional results.
“To create, one must first question everything.”
– Eileen Gray
Testimonials
I would like to express my gratitude to Patrick for efficiently completing all my applications at a minimal cost and within a remarkably short timeframe. Despite being unable to find anyone willing to meet my deadline elsewhere, Patrick delivered exceptional results, demonstrating his expertise. I highly recommend his services.
Kewdale
I recently used the services of Patrick De Rossi Design & Drafting and was very happy with the service Patrick supplied me . I highly recommend Patrick De Rossi Designs to anyone who is building a new home ….
I will definitely be using his services for my future protects … 👍👍👍👍
THANK YOU PATRICK .
Morley
Efficient, quality service :)
Sam Smith
Booragoon
Patrick was amazing to work with! I had a rough idea of what I wanted for my new home, and he brought it to life better than I could have imagined. He was super patient with all my questions and even made last-minute changes without any fuss. Highly recommend if you're looking for someone who actually listens and delivers.
Liam Verdy
Brabham
Patrick is a legend! I needed some drafting done for a granny flat, and he nailed it. He worked quickly but didn’t cut any corners. The design was spot on, and even my builder commented on how clear and detailed the plans were. If you need quality drafting, Patrick’s your guy.
Blake S
Hocking
We used Patrick for a new duplex design, and he was fantastic! Super professional but also really easygoing. He had great ideas to maximize the space, and his attention to detail was incredible. Honestly, the whole experience was seamless, and we’re thrilled with the result. Can’t recommend him enough!
Wang Jing
Tuart Hill
Absolutely stoked with Patrick's work! He designed our new home, and it’s everything we wanted and more. He’s super easy to work with and really listens to what you want. Plus, he was always on time with updates, which is rare these days. Couldn’t have asked for a better experience.
Paul & Jenny Harrison
City beach
We work closely with all Perth, WA shires to ensure approvals are streamlined.
Navigating the approval process is a critical part of any project. We work hand-in-hand with Western Australia's local councils and shires to ensure compliance and efficiency at every step. Our strong relationships with these authorities allow us to deliver seamless and timely outcomes for our clients.
The Process
Formal Quote
Before commencing the design process, we provide you with a formal quote tailored to your specific project. This step ensures transparency and clarity about the costs involved. Key details in the quote include:
- A breakdown of services offered, such as concept design, working drawings, and permit applications.
- An outline of the fees for each stage of the project.
- Any additional costs for third-party consultants or specialised services, if required.
- A clear timeline for payments, aligned with project milestones.
- By agreeing to the quote, you set the foundation for a smooth and professional working relationship.
Initial Consultation
The process begins with an initial consultation where we take the time to understand your vision, goals, and requirements for your project. During this stage, we:
- Discuss your ideas, lifestyle, and specific needs to tailor the design to your preferences.
- Assess the site conditions, such as orientation, accessibility, and potential challenges.
- Review your budget to ensure realistic expectations and feasibility.
- Outline the steps involved in the design and approval process, including timelines.
- This is your opportunity to share your inspiration and ask any questions you may have about the project.
Concept Design Stage
In this stage, we translate your vision into tangible concepts. Key steps include:
- Preparing initial floor plans & elevations to give you an overall idea of the design.
- Considering factors such as functionality, aesthetics, and compliance with relevant codes.
- Providing 2D or 3D visualisations to help you envisage the proposed design.
- Allowing for revisions and refinements to ensure the design aligns with your expectations.
- The goal of this stage is to finalise a concept design that forms the foundation for the rest of the project.
Planning Approval Stage (If Required)
If your project requires planning approval from the local council, we handle this process on your behalf. This involves:
- Preparing all necessary documentation, including floorplans, site plans, elevations, and supporting statements.
- Submitting the application to the relevant authority and liaising with council planners.
- Addressing any feedback or requested changes from the council.
- Ensuring compliance with local planning codes, zoning laws, and any specific requirements.
- Obtaining planning approval can take time, but we work diligently to minimise delays.
Working Drawing Stage
Once the concept design is approved, we create detailed working drawings that are essential for construction. These include:
- Comprehensive floor plans, elevations, details and sections.
- Detailed construction notes and specifications.
- Electrical and plumbing layouts, if applicable.
- These drawings provide the technical information required for construction and ensure accuracy in the building process.
3rd Party Plans & Documents
Almost all projects require additional input from third-party consultants. We coordinate with:
- Structural engineers for detailed structural designs.
- Energy assessors to ensure compliance with energy efficiency standards.
- Surveyors for site plans and boundary details.
- Other specialists, such as bushfire consultants or heritage advisors, if necessary.
- We manage this coordination to ensure all required documents are prepared efficiently and accurately.
Certificate of Design Compliance (CDC)
Before applying for a building permit, it is wise to have your design professionaly certified as compliant with the National Construction Codes (NCC) and other regulations. This involves:
- Engaging a registered building surveyor to review and certify the design.
- Providing all required documentation for assessment.
- Addressing any feedback to achieve certification.
- The CDC is a critical step to ensure your project meets all legal and safety requirements.
Building Permit Application
The final step before construction begins is obtaining a building permit. During this stage, we:
Submit the certified design and all required documentation to the local council or building authority.
- Follow up with the relevant authority to monitor the progress of your application.
- Address any additional requirements or conditions imposed by the authority.
- Obtain the building permit, which allows construction to commence.
- With the permit in hand, your project is ready to move to the construction phase.
"We shape our buildings: thereafter they shape us."
-Winston Churchill
