The Nest — a boutique office building where 500+ companies have grown since 2018.
The Nest occupies the thinnest building in Warsaw, across the street from Hala Koszyki. Since October 2018 it has held private offices, virtual offices and a bistro from the MICHELIN Guide 2026 on the ground floor.
- 500+
- Companies trusted
- 8
- Premium floors
- 4.4★
- 48 Google reviews
Why is this building so narrow?
The streets here were laid out in the 18th century, on the orders of Stanisław August Poniatowski. His Stanisław Axis was meant to connect Warsaw with the royal residence at Ujazdów, and it followed the French model of radiating squares. The squares are still here: Na Rozdrożu, Zbawiciela, Unii Lubelskiej, and Politechniki, where the metro stops. So are the sharp angles between the streets that run into them. Piękna and Koszykowa meet at one of those.
- 18th c.
The Stanisław Axis
The streets run out from the squares like spokes. Where two of them meet, the plot left over is a triangle. It gets built out to the very edge, so the corner comes out thin.
- 1876
The shape that stayed
The plot is given the outline it still has. It settles the proportions of anything that will ever stand on it.
- before 1900
A tenement with a lantern
A four-storey house is built on the triangular plot. Its converging façades form a narrow corner, crowned by a round lantern.
- 2017—2018
A new corner
Warsaw's heritage conservator approves a form that steps out over the pavement from the second floor up. The overhang runs along both streets and grows with every level. That is how the upper floors hold more square metres than the plot beneath them.

The view from inside
Three glazed segments
panes slightly offset — the reflections shift with every step
The mass splits in two. A closed core carries the stairs and the lifts. The rest is glass, stepped out over the pavement and cut into three segments.
The panes are set slightly out of line with one another. Walking past, you catch the neighbouring tenements and Hala Koszyki reflected in them — at a different angle with every step. A pre-war tenement once filled this plot completely. Today the same corner is closed in glass.
The history of the plot is drawn from the project description published by Grupa 5 Architekci
Hence
The narrowest building in Warsaw.
Eight years of building a place companies come back to.
The Nest officially launched in autumn 2018, but the project's story began a year earlier, on the initiative of Equinox Capital Partners. It was born from a simple observation: Warsaw was missing a boutique office building that combined a prestigious address, designer architecture and real work comfort.
- 2017
The concept is born
The Nest is initiated by Equinox Capital Partners. Architects at Grupa 5 design the distinctive, fully glazed form. Interiors are created by Beza Projekt.
- 2018
Official opening
On 26 October we open The Nest at the corner of Piękna 49 and Koszykowa, across from Hala Koszyki. The slender, boutique architecture catches the attention of the whole city.
- 2020
Coworking and awards
We launch the coworking space at The Nest. The building is featured on Wallpaper magazine's list of the world's best designed office spaces.
- 2022
All eight floors
We finish fitting out every storey. Each floor gets designer interiors and its own meeting rooms inside the space that is leased.
- 2024
500+ companies
We pass half a thousand clients and welcome our first international teams.
- 2025
Dedicated offices
We close the coworking chapter. Two formats are left: the virtual office, if an address is all a company needs, and a private office, if the team needs the square metres.
Designed by Grupa 5. Written up by Wallpaper*.
Grupa 5 Architekci designed the thinnest building in Warsaw: a fully glazed, slender form. Wallpaper Magazine later put it on its list of the world's best designed offices.

Warsaw's thinnest building
The narrow, slender form of The Nest is an architectural curiosity of the city. The glazed façade lets daylight into every floor, and the slim shape gives the building a character no typical class-A office can reach.
- Architecture
- Grupa 5 ArchitekciThe Warsaw studio that designed the form: a fully glazed office on a triangular plot, stepped out over the pavement.
- Interior design
- Beza ProjektThe studio behind the interiors. Marble columns, teal on every floor and an art collection.
- Recognition
- Wallpaper MagazineWallpaper put The Nest on its list of the world's best designed office spaces.
- Initiator
- Equinox Capital PartnersThe project began in 2017 on the initiative of Equinox Capital Partners.
„The Nest is a workplace for entrepreneurs who value quality and flexibility. Among our first tenants were freelancers, creative communities and creative teams of large companies alike.”
Four things you cannot add later.
A premium address in Śródmieście
Piękna 49, between Koszykowa and Plac Trzech Krzyży. Five minutes to Politechnika metro, ten minutes on foot to Łazienki Park. An address that impresses clients.
Compare offers and pricingFlexibility — from an address to a full office
A virtual office from 109 PLN/mo net, private offices on whole floors, a meeting room inside the space you rent. Start small and grow here, without changing your address or moving.
See the packagesLegal and administrative safety
An address for KRS and CEIDG registration, professional mail handling, letter scanning, notifications within 24h. Compliant with tax office and ZUS requirements.
Read the FAQNeighbours at one address
Polish startups, law firms, agencies and international companies — more than 500 have used the address since 2018. Eight floors, so you meet your neighbours in the lift rather than at a conference.
News from the building
This is The Nest from the inside.
Each of the eight floors was planned on its own, for daylight, acoustics and ergonomics.
What you do not have to take on trust.
Architecture, press, tenants, the address and the restaurant downstairs — every line here can be checked away from this website.
- Tenants
- 500+ companies trustedPolish startups, law firms, agencies and international companies. Since 2018.
- Architecture
- Grupa 5 × Beza ProjektThe design consortium behind the form and the interiors. Designed 2017–2018.grupa5.com.plarchdaily.com
- Press
- Wallpaper* MagazineFeatured in one of the world's leading design publications.wallpaper.com
- Distinction
- Warsaw's thinnest buildingA title earned by the uniquely slender form on Piękna street. 2018.
- Opened
- 26 October 2018At Piękna 49, on the corner of Koszykowa. Eight years in central Warsaw.
- Building
- 8 floors, fully glazed façadeThe capital's thinnest office building. Every storey lit by daylight.
- Reviews
- 4.4 / 548 verified reviews from tenants and visitors on Google.
- Ground floor
- Łaskawość Tytusa bistroListed in the MICHELIN Guide 2026. Mediterranean cooking on seasonal Polish produce.
- Location
- Across from Hala KoszykiFive minutes on foot from Politechnika metro, in central Śródmieście.
Want to see The Nest with your own eyes?
Book a free tour of the building — we will show you the available floors and rooms, and explain how the virtual office works. No commitments.
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