Studio HMD Duplex Designs
Duplex Architects Sydney
Studio HMD has extensive experience in designing and conceptualising duplex homes across Sydney. Across our portfolio, we’ve helped created high-end duplex home designs that are not only visually stunning, but also optimally functional.
● Registered Architect NSW 13247 ● Member – Australian Institute of Architects ● Award-Winning Design Practice ● Firm Based in Mascot, Sydney
High-end architecture for
Duplex designs
Studio HMD specialises in multi-residential design projects across Sydney. We design townhouses, duplexes, and multi-unit homes; carefully tailored to the site and client’s vision. Our architects have experience in managing council approval, designing modern amenities while staying compliant local regulations.
The way we approach duplex design is not dissimilar to our other residential architecture projects – we aim to deliver architectural designs that maximise space, functionality, and aesthetic appeal. Whether you’re a local developer or are looking to subdivide your property, Studio HMD can ensure that your dual occupancy design is entered with clarity and confidence.
Overview
Sydney Duplex Opportunities
As of 2026, the duplex market has fundamentally changed over the last couple of years. NSW planning reforms in 2024 and 2025 have been updated to allow for thousands of R2 blocks, that were previously ineligible for dual occupancy. Entire LGAs across Sydney like Hornsby and Ku-ring-gai are now eligible If your block has previously been not permitted for a duplex design, you may now be eligible to submit an application.
| 171 | designated low & mid-rise areas now eligible across Greater Sydney |
| 450m² | minimum lot size (smaller than most assume) |
| $1.8M–$2.0M | typical end value of a completed Sydney duplex |
| CDC pathway | councils cannot refuse a complying application under the new non-discretionary standards |
What We Do
Architectural
Services
01
Contemporary Dwellings
Studio HMD’s expertise lies in contemporary, modern architecture that highlights the features of the site. We design and manage projects across Sydney for dual-occupancy that seamlessly blend contemporary aesthetics with functional, comfortable living.
02
Duplexes & Townhouses
We design duplexes in Sydney that maximise space, elevate living spaces, and exceed expectations. Duplexes don’t need to be boring or carbon-copies of over designs. Studio HMD balance great design with practical outcomes.
03
Apartments
We with with developers to help bring apartment and multi-residential ideas to life. Our portfolio extends to a range of apartment complexes where we have designed and managed the projects from concept to completion.
Selected Work
Recent Projects
A selection of recent architecture projects completed.
Sans Souci, Sydney
Sans Souci Residence
Sydney
Sackville Street
Sydney
Simmat Avenue
Chifley, Sydney
Chifley Dual Occupancy
Brighton-Le-Sands, Sydney
General Holmes Residence
Sydney
Monterey Residence
Sydney
William Street
Sutherland Shire, Sydney
Gymea Bay
South Sydney
Kyeemagh
How We Work
Our 7-Step
Design Process
Step 01
Initial Meeting
We take time to understand your goals, values, and the feasibility of a duplex design.
Step 02
Schematic Design
A scoping study to the site, requirements, and align the project with the local council regulations.
Step 03
Concept Design
Conceptualising design ideas specific to the brief, dual occupancy requirements, and site foundations.
Step 04
Developed Design
We will develop a plan to outline materials, project management, and service integration.
Step 05
DA Documentation
Architectural drawings and supporting documentation for Development Application submission to local council, in line with latest NSW planning reforms for duplexes.
Step 06
CC Documentation
Following DA approval, the design is further detailed into Construction Certificate documentation for tender.
Step 07
Construction Management
We assist with builder handover and can manage the construction to ensure the project exceeds all expectations.
Where We Work
Serving Key Precincts of Sydney
GET IN TOUCH
Start Your Duplex Architecture Project
Tell us about your project. Whether you’re exploring a new home, a duplex, or a multi-residential development – we’d love to hear from you.
