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About Us

3 Marks of Existence is an Interior Design practice based in Sydney that specialises in high end residential new builds, high end renovations and extensions, hospitality and commercial projects. Our goal is to bring clients dreams to life, by creating sophisticated timeless interiors that work in harmony with their environment, lifestyles and their budget. The dedicated team at 3 Marks of Existence have a unique design style which is influenced by the Japanese philosophy of “less is more.” Our minimalist approach engages the use of natural materials, deep textures and open spaces to allow each setting to blossom into its own peaceful paradise. The clients experience of the design process is very important to us. By collaborating with them, each element is considered and planned to the utmost detail leaving nothing to chance. Together we establish an innovative end design that is uniquely their own. Our philosophy is dedicated to crafting effortless, luxury living spaces by imbuing interiors with personal style, simple sophistication and superior craftsmanship. This acute attention to detail and unsurpassed passion for design is what sets us apart from the rest.

Services Provided

3D Rendering, Bathroom Design, Bedroom Design, Colour Consulting, Custom Bathroom Vanities, Custom Built-ins, Custom Cabinets, Custom Entertainment Units, Custom Furniture, Custom Home Bars, Custom Kitchen Cabinets, Dining Room Design, Drafting, Floor Plans, Furniture Selection, Hallway Design, Home Office Design & Construction, Home Theatre Design, House Plans, Interior Design, Kitchen Design, Kitchen Renovating, Laundry Room Design, Lighting Design, Living Room Design, Space Planning, Wardrobe Design, Construction Documentation, Concept Design, Fixtures, Fittings, Equipment, Hardware specificat, High End Residential New Build, High End Residential Renovation, Hotel Design, Restaurant, Bar, Pub, Cafe, Custom Furniture and Joinery

Areas Served

Sydney, Woollahra, Paddington, Mosman, Double Bay, Cremorne, Vaucluse, Point Piper, Melbourne, Rosebay, Sylvania Waters, Potts Point, Milson Point, Millers Point, Bronte, Darling Point, Dover Heights, Watsons Bay, Surry Hills


Shortlisted for Interior Design Excellence Awards (IDEA) 2021

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Business Details

Business Name

3 Marks of Existence

Phone Number

0414 410 426


Level 2, Suite 2.23, 100 Collins Street
Alexandria, New South Wales 2015

Typical Job Cost

$700,000 - $5 million

Our fees are customised for every project and take complexity, requirements and budget into consideration. We ask potential clients to complete an online questionnaire to assist us in understanding the scope of the project prior to our free 15min phone consult.If we believe a project is a good fit we organise an initial face consultation at $550 for 2hrs in order to meet, review requirements and go through the design process in detail. Business Hours – Monday – Friday 9am to 5pm.


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