Expert Building Design in Long Bay

Long Bay in Mosman is known for its serene harbourfront setting, walking tracks, and close connection to nature. Nestled between Middle Head and The Spit, it offers a peaceful residential atmosphere with easy access to beaches, reserves, and Sydney Harbour’s waterways.

DMR Designs provides specialised building solutions in Long Bay, ensuring homes complement the harbour foreshore environment while meeting Mosman Council’s planning regulations.

We proudly design homes in Long Bay that blend luxury, lifestyle, and environmental sensitivity.

Why Choose DMR Designs for Building Design in Long Bay?

  • Harbour-Sensitive Homes: Designed to integrate with foreshore character and views.

  • Luxury Living: Premium layouts tailored to harbourfront lifestyles.

  • Compliance Expertise: Navigation of Mosman’s foreshore and height controls.

  • Eco-Responsive: Energy-efficient homes designed with sustainability in mind.

  • Lifestyle Integration: Homes that maximise the natural setting and views.

Our Long Bay designs reflect a balance of exclusivity, compliance, and liveability.

Mosman Council Requirements for Building in Long Bay

 

  • Zoning types

    • R2 Low Density Residential

    • Foreshore Scenic Protection Area

  • Setbacks

    • Front setbacks: 5–7 m typical

    • Side/rear setbacks subject to foreshore regulations

  • Typical lot sizes

    • Detached homes: 600–1,200 m²

  • Key constraints

    • Foreshore protection rules restrict building envelopes

    • Strict height limits to preserve harbour views

    • Environmental protections for coastal vegetation

  • Utilities available

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

Building in Long Bay requires homes that honour harbour views and foreshore character while complying with council controls.

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

DA vs CDC: What’s Right for Your Long Bay Project?

Mosman projects may follow either a Development Application (DA) or Complying Development Certificate (CDC) process depending on site factors and project scale.

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

DA (Development Application):

  • Required for new dwellings, extensions, or renovations within foreshore areas.

  • Necessary for variations to strict planning rules or significant alterations.

CDC (Complying Development Certificate):

  • Limited use in Long Bay due to foreshore constraints.

  • Best suited for small, compliant internal works or minor alterations.

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 Long Bay

  • Yes, but it must go through DA approval and meet strict foreshore protection rules.

  • Yes, extensions must respect setbacks, height limits, and view corridors.

  • Yes, vegetation and landscaping are regulated to protect the natural environment.

  • While we know the Mosman area well, we also work across many suburbs within the Mosman Council area, including Balmoral, Clifton Gardens, Georges Heights, and more. Additionally, we are available for select projects up to 4 hours away from the Mosman 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 coastal-inspired designs to specialized compliance plans, we’re here to help you move forward with clarity and confidence. We’d love to hear about your Mosman project and how we can assist.

Our Building Design Services in Long Bay

We deliver custom designs, luxury residences, and foreshore-sensitive planning tailored for Long Bay’s premium harbour setting.
From design to approval, we ensure compliance, lifestyle fit, and architectural excellence.

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 Mosman portfolio showcasing Long Bay projects that highlight harbourfront living with compliance and style.

Portfolio

⇨

Home Designs

⇨

DMR Designs ensures your Long Bay home is as practical as it is prestigious.

Ready to Start Designing Your New Home in Long Bay?

We’re here to help you take the next step! whether you’re

starting fresh or upgrading YOUR mosman home.

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 Long Bay?

DMR Designs proudly works with homeowners across the entire Mosman Council area. From Balmoral and Clifton Gardens to Georges Heights and beyond, we bring the same personalized design approach to every project—no matter where you call home.