Expert Building Design in Collaroy Plateau

Collaroy Plateau is known for its sweeping ocean and district views, elevated topography, and family-oriented lifestyle. Many homes are positioned on sloped sites, making thoughtful architectural planning essential for both aesthetics and compliance. The suburb offers excellent potential for duplexes, extensions, and smart second-storey additions.

At DMR Designs, we specialize in drafting services, council approval assistance & building design in Collaroy Plateau. Whether you're building a new family home, investing in a dual occupancy project, or revamping an older property, we design to suit the terrain and the needs of modern living.

We proudly serve Collaroy Plateau with practical, view-oriented designs that work with the slope and tick every council box.

Why Choose DMR Designs for Building Design in Collaroy Plateau?

  • View-Focused Layouts: We design to frame ocean and district vistas

  • Split-Level and Slope Solutions: Ideal for hillside lots

  • Dual Occupancy Ready: Designs that unlock value in larger blocks

  • Family-Led Design Thinking: Open-plan, light-filled spaces for everyday living

  • Complete Approval Support: From planning reports to final sign-off

Our Collaroy Plateau building design services are built for beauty, function, and long-term value.

Northern Beaches Council Requirements for Building in Collaroy Plateau

 

  • Zoning:

    • R2 Low Density Residential, with some environmental or slope-sensitive overlays

  • Setbacks:

    • Front: 6–7.5m depending on street context

    • Side: 900mm–1.5m, based on wall height and levels

    • Rear: 3–6m, adjusted for slope and adjoining properties

  • Typical Lot Sizes:

    • 600–900+ sqm, often rectangular or sloped with panoramic outlooks

  • Key Constraints:

    • Slope stability and driveway gradient must be factored into design

    • BAL ratings may apply near reserves or bushland edges

    • View-sharing and height limits affect upper-floor planning

    • Drainage and stormwater must be considered for sloping sites

  • Utilities:

    • Fully serviced with power, sewer, water, gas, and NBN

Building in Collaroy Plateau requires careful consideration of zoning overlays, bushfire ratings, and environmental planning policies.

For detailed council regulations and submission guidelines, visit the Northern Beaches Council website.

DA vs CDC: What’s Right for Your Collaroy Plateau Project?

DA is common for sloped and view-sensitive sites, but CDC can be used for compliant additions on suitable blocks. Whether it’s a Development Application (DA) or a Complying Development Certificate (CDC), we’ll guide you through the process from start to finish.

Here’s a quick breakdown to help you understand the difference:

DA (Development Application):

  • Best for new builds, major renovations, or dual occupancies

  • We handle slope assessments, BASIX, and design justification

CDC (Complying Development Certificate):

  • Ideal for simpler extensions or internal upgrades

  • We’ll check eligibility and fast-track where appropriate

Need help figuring out which route suits your site? We’ll assess your block and walk you through your options.

 

FAQs About Building Design in Collaroy Plateau

  • Possibly, depending on lot size and frontage. We assess zoning and site capacity for dual occupancy or granny flats.

  • Yes—we integrate elevated decks, rooftop spaces, and alfresco zones to suit the land and lifestyle.

  • Yes—height limits vary depending on slope and surroundings. We model designs to stay compliant while maximizing space and views.

  • Not at all! While we love working in spots like Avalon, Narrabeen, and Dee Why, we also take on projects across the North Shore, Ku-ring-gai, and even further out. We’re open to select builds up to 4 hours from the Northern Beaches Council area.

  • Cost depends on the scope of your project. We’ll walk you through pricing during your discovery call so you know exactly what to expect.

Ready to take the next step?

From custom home designs to council-ready plans, we’re here to guide your project every step of the way. Let’s bring your vision to life — reach out today.

Our Building Design Services in Collaroy Plateau

From stunning split-level homes to family upgrades and investment builds, our Collaroy Plateau building design services are shaped by slope, views, and smart planning.

We design with purpose—delivering homes that look good, live well, and last.

What to Expect: Our Building Design Timeline

A step-by-step look at how we take your project from concept to council approval and beyond.

Every project starts with a discovery call and ends with council-approved, build-ready plans.

Here’s how we make it easy from start to finish:

Step 1 - Discovery Call

  • Let’s chat! We’ll have a quick call to understand your project and see how we can help.

Step 2 -Site Visit & Consultation (5–7 days)

  • We’ll meet at your site (or virtually), take a closer look, and discuss your vision in detail.

Step 3 - Fee Proposal (2 days)

  • You’ll get a clear, no-surprises proposal with the scope, timeline, and costs.

Step 4 - Concept Design (4 weeks)

  • We’ll create initial design ideas and layouts tailored just for you.

Step 5 - Design Development & Expert Coordination (2 weeks)

  • We’ll fine-tune the design and collaborate with any needed specialists (engineer, energy consultant, town planner, geo tech engineer, bushfire, heritage consultant, etc).

Step 6 - Final Adjustments (1 week)

  • We’ll polish everything and prepare the final drawings for submission.

Step 7 - Submission for Approval

  • We handle the council or certifier submission, so you’re ready for the next steps.

Want the full breakdown?

View our detailed process here.

From Plans to Reality: See How It All Comes Together

Explore our designs for elevated and view-sensitive sites—functional, stylish, and built to impress.

Portfolio

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Home Designs

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Our Collaroy Plateau building designs help you unlock the full potential of your land.

Ready to Start Designing Your New Home in Collaroy Plateau?

We’re here to help you take the next step! whetheR It’s

a new chapter or a fresh upgrade

We’d love to hear what you have in mind. Book a discovery call or send us a message, and we’ll be in touch within 48 hours.

Not based in Collaroy Plateau?

DMR Designs proudly serves the entire Northern Beaches—from Palm Beach and Avalon to Dee Why and Manly. Wherever you're building, we bring the same precision, creativity, and local know-how to every design.