Architect Flemming Lassen was as noted for his furnishings as he was for his buildings, and he created bedroom furniture and other pieces specifically for the inviting interiors he brought to fruition. The Danish modernist is credited by many for his role in introducing his native country to functionalism, which prioritizes practicality over excessive ornamentation in design. Lassen is widely known for his comfortable, plush vintage sofas, lounge chairs and other seating, such as the overstuffed Tired Man armchair and Mingle sofa.
Lassen's mother and father were both painters. In the early 1900s, he and his brother — architect Mogens Lassen — began to attend boarding school where they befriended Arne Jacobsen, with whom Flemming would come to share an affinity for the principles of functionalism. Jacobsen became a leading light of Scandinavian modernism — his celebrated mid-century designs include the Swan chair and the Egg chair — and he and Flemming remained close throughout their lives, maintaining a strong personal relationship as well as a professional bond as like-minded colleagues.
Lassen and Jacobsen exchanged ideas and collaborated — the former shared his friend’s holistic approach to building projects, which is evidenced by Jacobsen’s design for the SAS Royal Hotel in Copenhagen. Jacobsen’s designs for the property encompassed everything from the architecture to interiors and furnishings. Together, Lassen and Jacobsen won an award at the “Architects Building and Housing Exhibition,” which was held at the Forum in Copenhagen in 1929. The duo was recognized for its “House of the Future,” a circular structure fitted with a then-revolutionary automatic garage door opener and windows that rolled up and down with a handle — just as they would in a car. The House of the Future has influenced Danish architecture to this day.
Flemming also often collaborated with his older brother Mogens, designing buildings and furniture alike. Mogens designed all kinds of tables and seating, and worked with the likes of Jacobsen, Finn Juhl and Ole Wanscher on various projects.
Flemming Lassen created the oak-and-sheepskin Tired Man armchair for The Copenhagen Cabinetmakers’ Guild Competition in 1935. Three years later, he designed the Mingle sofa. Both seating pieces are very popular with collectors today.
Find vintage Flemming Lassen furniture on 1stDibs.
Flemming Lassen, Sofa, Fabric, Birch, Finland, 1952
By Flemming Lassen
Located in High Point, NC
A floral-printed fabric and birch sofa or settee designed by Flemming Lassen and produced by Asko, Finland, c. 1952. Vintage fabric. Reupholstery recommended. Overall Dimensions (i...
Fabric, Wood, Birch
Danish 1940s Flemming Lassen Attributed High Back Lounge Chair
By Flemming Lassen
Located in Bridgeport, CT
Beautiful Flemming Lassen attributed high back lounge chair made circa 1940. This iconic lounge chair is probably one of the most perfect high backs ever designed. Perfect statement ...
Wool, Beech
The Tired Man Lounge Chair -Sheepskin Moonlight/Oak by Flemming Lassen for Audo
By Audo, Flemming Lassen
Located in Dubai, AE
The Tired Man also known as "Den trætte mand" was launched at the Copenhagen Cabinetmakers’ Guild Exhibition in 1936 and has since become an icon of Danish design. The epitome of cra...
Brass
Sofa in Ash Legs with Original Velvet Mohair Fabric by Flemming Lassen, 1940's
By Flemming Lassen
Located in Limhamn, Skåne län
Sofa in Ash Legs with Original Velvet Mohair Fabric by Flemming Lassen, 1940's Additional Information: Material: Ash legs with original velvet mohair fabric Style: Mid century, Scan...
Ash, Velvet
Flemming Lassen Bamboo and Cane Lounge Chair, E. V. A. Nissen & Co., 1940s
By Flemming Lassen, E.V.A. Nissen & Co. 1
Located in Amsterdam, NL
An early example of the Flemming Lassen bamboo chair, model 340 for E.V.A. Nissen & Co., Denmark 1940s. Entirly constructed from bamboo and rattan. The chair is in good original ...
Bamboo, Rattan
Flemming Lassen – Rare Pair of Mahogany Chairs with Cane Backs
By Flemming Lassen
Located in Kastrup, DK
Flemming Lassen (Danish, 1902–1984) A rare pair of chairs crafted in Cuban mahogany, featuring French-woven cane backs and seats upholstered in original Niger leather. Designed by F...
Leather, Cane, Mahogany
1938 Flemming Lassen for Georg Kofoed Danish Lounge Chair in Original Mohair
By Flemming Lassen, Georg Kofoed
Located in Oakland, CA
Lounge chair by notable Danish architect and designer Flemming Lassen, handcrafted by cabinetmaker Georg Kofoed in 1938, Denmark. This classic piece features a button-tufted back, su...
Mohair, Oak
$7,716Sale Price|20% Off
'Ingeborg' Easy Chair by Flemming Lassen, Asko, 1950s
By Asko, Flemming Lassen
Located in Karis, Nyland
A neat and functional easy chair by Danish architect Flemming Lassen (1902-1984). The 'Ingeborg' series has been named after Flemming Lassen’s beloved mother, artist Ingeborg Winding...
Fabric, Wood
Rare Flemming Lassen Rattan Easy Chair, 1940
By Flemming Lassen, E.V.A. Nissen & Co. 1
Located in Copenhagen, DK
Flemming Lassen rattan easy chair with a green cushion. Designed 1940, made and marked with metal plate by E.V.A Nissen, Denmark. Fine original condition with new cushion made as o...
Fabric, Cane, Rattan
Vintage "Ingeborg" sofa by Flemming Lassen, Denmark, 1940s
By Flemming Lassen, Asko
Located in Stockholm, SE
Beautiful “Ingeborg” sofa by Flemming Lassen, with curvesome forms. Designed in 1940 and named after his mother, the artist Ingeborg Winding. Upholstered with caramel colored sheepsk...
Lambskin, Birch
Ingeborg Lounge Chair, Sheepskin M/ Dark Stained Oak, by Flemming Lassen, Audo
By Audo, Flemming Lassen
Located in Dubai, AE
Named after the designer’s artist mother, Ingeborg Winding, the Ingeborg Lounge Chair from 1940 welcomes the sitter with open arms and an irresistibly ...
Sheepskin, Oak
Flemming Lassen My Own Chair Ottoman Sheepskin Moonlight Walnut for Audo
By Flemming Lassen, Audo
Located in New York, NY
The My Own Chair Footstool has been designed in the same spirit as Flemming Lassen’s original iconic chair, reflecting his love of rounded shapes, simple forms and precise detailing,...
Sheepskin, Walnut
Flemming Lassen The Tired Man Ottoman Sheepskin Moonlight for Audo
By Flemming Lassen, Audo
Located in New York, NY
The Tired Man Footstool has been designed from Flemming Lassen's original armchair. The soft lines and round shapes from the armchair is continued in the footstool. Thoughtfully prop...
Sheepskin, Oak
$10,200 / set
Flemming Lassen Ingeborg Danish Lounge Chairs
By Flemming Lassen, Jacob Kjaer
Located in Oakland, CA
Ingeborg lounge chairs originally designed in 1940 by Flemming Lassen and produced by Master carpenter Jakob Kjaer for The Copenhagen Cabinetmaker Guild Ex...
Fabric, Wood
Vintage "Ingeborg" sofa by Flemming Lassen, Denmark, 1940s
By Flemming Lassen, Asko
Located in Stockholm, SE
Beautiful “Ingeborg” sofa by Flemming Lassen, with curvesome forms. Designed in 1940 and named after his mother, the artist Ingeborg Winding. Upholstered with caramel colored sheepsk...
Lambskin, Birch
Flemming Lassen Settee in Beige Sheepskin, 1940s
By Jacob Kjaer, Flemming Lassen
Located in Copenhagen, DK
Flemming Lassen, settee for master cabinetmaker Jacob Kjaer, Denmark. Tapering legs in mahogany and reupholstered in beige sheepskin. The model was presented at The Copenhagen Cabinetmakers' Guild Exhibition in 1940. A matching pair of Flemming Lassen chairs...
Sheepskin, Mahogany
$3,660Sale Price|23% Off
Mayor Sofa Model AJ5 By Arne Jacobsen & Flemming Lassen From 1990s
By Flemming Lassen, Arne Jacobsen
Located in Lejre, DK
The Mayor sofa, model AJ5, is a beautiful and iconic piece of furniture designed by Arne Jacobsen and Flemming Lassen in 1939. The sofa is known for its ele...
Wool, Oak
My Own Chair Lounge Chair-Sheepskin Moonlight/Walnut by Flemming Lassen for Audo
By Audo, Flemming Lassen
Located in Dubai, AE
Designed by Flemming Lassen in 1938, My Own Chair is an original and eye-catching piece of mid-century Danish modern design. Upon launch it received much praise for its sculptural fo...
Sheepskin, Walnut
Flemming Lassen The Tired Man Lounge Chair Sheepskin Moonlight for Audo
By Flemming Lassen, Audo
Located in New York, NY
Flemming Lassen designed the overstuffed easy chair, The Tired Man, for The Copenhagen Cabinetmakers’ Guild Competition in 1935. It is characterized by organic, bearlike shapes and t...
Sheepskin, Oak
Pair of Easy Chairs in Oak Legs w/ Reupholstered in Gabriel Savak Plain, 1940's
By Flemming Lassen
Located in Limhamn, Skåne län
Pair of Easy Chairs in Oak Legs with Reupholstered in Gabriel Savak Plain by Flemming Lassen, 1940's Additional Information: Material: Oak legs with reupholstered in Gabriel Savak p...
Oak
Flemming Lassen Ingeborg Sofa Sheepskin Moonlight Dark Stained Oak for Audo
By Flemming Lassen, Audo
Located in New York, NY
The Ingeborg Sofa is a beautiful and expressive 2,5 pers. lounge sofa, that originally is designed in 1940 by Flemming Lassen. The charming and elegant sofa, that is named after Flem...
Sheepskin, Oak
Flemming Lassen My Own Lounge Chair Sheepskin Moonlight Walnut for Audo
By Audo, Flemming Lassen
Located in New York, NY
Flemming Lassen’s iconic armchair, originally designed in 1938, was first produced as a one-off piece. It was introduced at The Copenhagen Cabinetmakers’ Guild Exhibition, where its ...
Sheepskin, Walnut
Set of Ingeborg Lounge Chair & Ottoman in Sheepskin Moonlight& Dark Stained Oak
By Audo, Flemming Lassen
Located in Dubai, AE
Ingeborg Lounge Chair Named after the designer’s artist mother, Ingeborg Winding, the Ingeborg Lounge Chair from 1940 welcomes the sitter with open arms and an irresistibly charming ...
Sheepskin, Oak
Pair of Easy Chairs in Ash Legs with Velvet Mohair by Flemming Lassen, 1940's
By Flemming Lassen
Located in Limhamn, Skåne län
Pair of Easy Chairs in Ash Legs with Original Velvet Mohair Fabric by Flemming Lassen, 1940's Additional Information: Material: Ash legs with original velvet mohair fabric Style: Mi...
Ash, Velvet
Flemming Lassen Mingle Sofa Moonlight Sheepskin Dark Stained Oak for Audo
By Flemming Lassen, Audo
Located in New York, NY
The Mingle sofa was designed in 1935 by architect Flemming Lassen (1902-1984) and was presented at The Copenhagen Cabinetmakers’ Guild Competition in the same year. It was subsequent...
Sheepskin, Oak, Wood
Flemming Lassen Ingeborg Sofa Sheepskin Sahara Dark Stained Oak for Audo
By Flemming Lassen, Audo
Located in New York, NY
The Ingeborg Sofa is a beautiful and expressive 2,5 pers. lounge sofa, that originally is designed in 1940 by Flemming Lassen. The charming and elegant sofa, that is named after Flem...
Sheepskin, Oak
Flemming Lassen Pair of Easy Chairs in Beige Sheepskin, 1940s
By Jacob Kjaer, Flemming Lassen
Located in Copenhagen, DK
Flemming Lassen, pair of easy chairs for master cabinetmaker Jacob Kjaer, Denmark. Tapering legs in stained ash and reupholstered in beige sheepskin. The model was presented at The ...
Sheepskin, Ash
Flemming Lassen Ingeborg Lounge Chair Sheepskin Moonlight Dark Oak for Audo
By Audo, Flemming Lassen
Located in New York, NY
Originally Ingeborg was designed in 1940 by Flemming Lassen. The chair was designed by Master carpenter Jakob Kjær, who manufactured Flemming Lassen's furniture for The Carpenters gu...
Sheepskin, Oak
Flemming Lassen Ingeborg Footstool Sheepskin Sahara Dark Stained Oak for Audo
By Flemming Lassen, Audo
Located in New York, NY
Originally Ingeborg was designed in 1940 by Flemming Lassen. The chair was designed by Master carpenter Jakob Kjær, who manufactured Flemming Lassen's furniture for The Carpenters gu...
Sheepskin, Oak
Easy Chair designed by Flemming Lassen Denmark, 1950s
By Flemming Lassen
Located in Stockholm, SE
Easy Chair designed by Flemming Lassen Denmark, 1950s. Sheepskin and oak. H: 77 cm / 2' 6 3/8" D: 60 cm / 1' 11 5/8" W: 73 cm / 2' 4 3/4" SH: 44 cm / 1' 5 5/16"
Sheepskin, Oak
Rare Pair of Flemming Lassen Highback Lounge Chairs Denmark 1940's
By Flemming Lassen
Located in Bridgeport, CT
Beautiful Flemming Lassen attributed high back lounge chair made, circa 1940. This iconic lounge chair is probably one of the most perfect high backs ever designed. Perfect statement...
Wool, Beech
Flemming Lassen Ingeborg Lounge Chair Sheepskin Sahara Dark Stained Oak for Audo
By Audo, Flemming Lassen
Located in New York, NY
Originally Ingeborg was designed in 1940 by Flemming Lassen. The chair was designed by Master carpenter Jakob Kjær, who manufactured Flemming Lassen's furniture for The Carpenters gu...
Sheepskin, Oak
Ingeborg Lounge Chair, Sheepskin M/ Natural Oak, by Flemming Lassen for Audo
By Flemming Lassen, Audo
Located in Dubai, AE
Named after the designer’s artist mother, Ingeborg Winding, the Ingeborg Lounge Chair from 1940 welcomes the sitter with open arms and an irresistibly ...
Sheepskin, Oak
Flemming Lassen Ingeborg Footstool Sheepskin Moonlight Dark Stained Oak for Audo
By Audo, Flemming Lassen
Located in New York, NY
Originally Ingeborg was designed in 1940 by Flemming Lassen. The chair was designed by Master carpenter Jakob Kjær, who manufactured Flemming Lassen's furniture for The Carpenters gu...
Sheepskin, Oak, Wood