Interior Design · Port Washington, New YorkCourtney Sempliner Designs
Courtney is a native New Yorker with over 15 years experience working on projects of all scales across the globe.
bio
A native New Yorker, with a lifetime of design behind her.
Courtney is a native New Yorker with over 15 years experience working on projects of all scales across the globe. She comes from a long line of designers, artists and architects, bringing extensive experience and knowledge to all her projects.
Prior to opening her eponymous business in 2016, Courtney gained invaluable years of experience at international design firms in New York and London; including a variety of high profile, luxury residential projects such as a private penthouse residence within the Plaza Hotel, properties within the renowned One Hyde Park building in London, as well as various property developments and private residences all over the world for a roster of high profile clients. Current projects include private family homes and office projects in the New York area, on the West Coast and everywhere in between.
PortfolioSelected Projects
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Project East Village | NYC
A full gut renovation of a two bedroom apartment in the East Village with a Mad Men twist.
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Project Cow Neck | Sands Point
One of our favorite projects, a full gut renovation of a 10,000 square foot Sands Point home, updating a beloved family home for our clients next chapter.
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Project East | Port Washington
A transitional family home for a young family that isn’t afraid of color and pattern.
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Hamptons Designer Showhouse 2025
Our entrance foyer space in collaboration with Calico Wallpaper to launch their new design, Abalone.
ServicesA comprehensive menu of à la carte design services
01
Planning
- Client Consultation
- Preliminary Budget
- Scope of Works
- Space Planning
- Review of Existing Plans
02
Design
- Mood Boards
- Furniture Layouts & Elevations
- Finish, Fixtures & Material Research
- Kitchen & Bath Design
- Architectural Finishes
03
Project Management
- Budget Planning
- Coordination with Builders/Contractors
- Assist with Bidding Process
- Procurement & Purchasing
- Organization of Deliveries
“Our apartment looks beautiful and Courtney's style, organization, attention to detail and professionalism receives full marks!”
— Laila, NYC Pied A TerreAs featured inHC&G · NYC&G · The Wall Street Journal · Traditional Home · HGTV · Domino · Newsday · MyDomaine · Better Homes & Gardens · Cottages & Gardens · Business of Home · Apartment Therapy
Instagram@courtneysemplinerdesigns
We would love to hear from you!
If you have an upcoming project, we would love to hear about it and see how we can help.