
T H E N C E B Y D E S C E N T
Seattle
01 about
Thence By Descent (TBD) is a Pacific Northwest-based consultancy and source for furniture, lighting, and objects, with a focus on designs by George and Mira Nakashima. Founded by Mark Tan, Thence By Descent’s mission is to:
Spark an obsessive appreciation for
heirloom-quality design.
Prior to relocating to Seattle in 2017, Mark lived in New York City for 18 years, where limited space and an inherent forcing mechanism encouraged him to ruthlessly edit, curate, and prioritize, guided by principles around craft, form, function, quality, materials, and history. The pieces he treasured most were those with interesting provenances — particularly those passed down through generations within a family (“thence by descent”).
Thence By Descent advocates a sustainability-forward approach to procurement by helping clients acquire heirloom-quality designs intended to be preserved for future generations.
Whether you are an established architectural or design studio, a seasoned collector, or simply wandering with a curious eye, Thence By Descent embraces your interest and is here to help spark an obsessive appreciation for fine design.




02 furniture
Inspired Interiors

London home (Anish Kapoor)
Conoid Bench, Conoid Cushion Chair

Napa Valley estate (by Groves & Co.)
Sled-Based Coffee Table

Napa Valley estate
(by Groves & Co.)
Classic Cushion Chair, Greenrock Ottoman, Minguren II Coffee Table

Carla Ridge, Beverly Hills home (by Lucas)
Coffee Table, Conoid Chair


Manhattan penthouse (by Delphine Krakoff)
Double Minguren I Coffee Table

Galerie Half display (by Trevor Cheney)
Minguren IV Dining Table, Grass-Seated Chair

Pasadena home (Cameron Smith)
Round Cluster-Base Dining Table, Grass-Seated Chair

Los Angeles home (Maria Sharapova)
Grass-Seated Chair
Hamptons summer home
(Helena and Per Skarstedt)
Minguren II Dining Table


Ojai, California refuge (Anne Crawford and Dudley DeZonia)
Quadruple Sliding Door Cabinet, New Chair

Shelter Island New York residence (by Russell Piccione)
Minguren II Dining Table, Conoid Chair, Conoid Host Chair with Arms

Belgium duplex apartment (by Charlotte Vercruysse)
5 Feet Hanging Wall Case



Thom Browne Milan store (by ASA Studio Albanese)
Grass-Seated Chair, Conoid Bench, Conoid Chair

Tadao Ando Los Angeles home (Lorenzo Hadar)
Low Triple Sliding Door Cabinet, Asa-No-Ha Table Lamp, Mira Chair
Napa Valley estate
(by Groves & Co.)
Conoid Cushion Chair, Plank Headboard, Platform Bed, Groves Nightstand



Brooklyn apartment (by Gabellini Sheppard Associates)
Conoid Desk, Lounge Chair Rocker with Freeform Arm
Napa Valley estate (by Groves & Co.)
Conoid Chair, Sunset Dining Table
Los Angeles home (Sean and Lizzie Rad)
Conoid Dining Table as a desk


Paris apartment (Yves Solomon)
Conoid Desk, Conoid Chair

West Village Manhattan penthouse (Michael Kors)
Amoeba Set

West Village Manhattan penthouse (Michael Kors)
Minguren II Coffee Table
Morentz Gallery display at the European Fine Art Foundation (TEFAF)
Chest of Drawers - Hi Boy


Maytor Place, Beverly Hills home (by Marmol Radziner)
Triple Sliding Door Room Divider Cabinet


Sutton Place Manhattan home
(by David Kleinberg Design Associates for Thom Browne)
Coffee Table, Plank Headboard, Grass-Seated Chair



Louis Laplace Ibiza residence (by Matthieu Salvaing)
Minguren II Coffee Table
VR House, Netherlands (by Nicolas Schuybroek Architects)
Conoid Chair
05 consultation
Thence By Descent offers personalized consultation services for clients seeking exceptional design pieces by American studio craft woodworkers, George and Mira Nakashima. With a deep understanding of Nakashima’s craftsmanship and design philosophy, we assist in sourcing one-of-a-kind, heirloom-quality furniture that not only meets your aesthetic and functional needs but also your financial investment objectives. Our services include:
Personalized Research and Sourcing: We leverage our expertise and understanding of the network to identify Nakashima pieces that align with your specific needs (and obsessions), whether you are seeking a classic work such as the Conoid chair or a rare masterpiece.
Curated Selection: Drawing from a curated selection of collectible pieces, we offer options that hold both historical interest and enduring value. Each item is chosen for its authenticity, craftsmanship, and potential to appreciate over time.
Value Guidance: Beyond sourcing, we provide advice on the provenance, condition, and market value of each piece, ensuring that your investment aligns with both your lifestyle and financial objectives.
Seamless Procurement Process: Our service ensures a smooth and discreet procurement process, managing every detail from research and brokerage to final delivery and installation as needed, allowing you to focus on enjoying your new purchase.
Thence By Descent’s tailored consultation services are designed to support your next strategic acquisition.
06 contact
Mark Tan
Founder and Director
(917) 916-4666
info@thencebydescent.com
By Appointment Only
Please schedule an appointment to explore the pieces listed online in person at our staging location in Downtown Seattle.