Sources

65, quai Georges Gorse, 92100 Boulogne Billancourt

Opportunity 2026
  • In regards to
  • Prestations & Services
  • CSR
  • Neighbourhood & Acces
  • Floor plans and surfaces
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Sources

65, quai Georges Gorse, 92100 Boulogne Billancourt

Opportunity 2026

18 240 sq.m *

1 200 collaborators

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Sources, an architectural work by Norman Foster, offers a unique working experience between the Seine and the park, just a few minutes from the heart of Paris.

A distinctive architectural signature 

Norman Foster's distinctive architecture for the only building to offer a walkway linking the park to the Seine. Its spectacular 1,000 sq.m atrium and 10 interior walkways encourage dialogue between the floors, while the renovation by Saguez & Partners offers a new range of services at the heart of 19,700 sq.m of living and working space.

 

From atrium to rooftop, a building that brings you together

The 8-storey high, light-filled, walk-through 1,300 to 2,600 sq.m offices, each with outdoor areas and a 590 sq.m planted rooftop 34 metres above the Seine, offer 360° views and services such as a YouFirst Manager, a working café, a business centre and a restaurant.

 

Virtuous and at the cutting edge of ecological requirements for an exceptional everyday life

This building has been awarded the NF HQE construction "very good" and operating "exceptional" certifications, as well as the Breeam certification target, demonstrating its commitment to CSR standards.

 

A location at the heart of life in Boulogne and at the gateway to Paris 

Ideally located in the heart of Boulogne and at the gateway to Paris, this site offers excellent access by public transport, with metro line 9 just 8 minutes away on foot and tramway T2 just 5 minutes away. The immediate proximity of the N118 trunk road and the A13 motorway also ensures excellent road connectivity. In 2025, the future line 15 will provide even faster connections, making it possible to reach La Défense in 15 minutes.

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The strengths of this space

Architecture

Architecture by Norman Foster. Available from the 1st quarter of 2026.

Surface

19,700 sq.m of office space, including 14,200 sq.m available for up to 1,200 employees. An average of 1,300 to 2,600 sq.m of office space per floor. A 1,000 sq.m atrium, 7 storeys high, with 10 interior walkways.

Exterior surface

590 sq.m of open panoramic terrace with 360° views.

Services

Services redesigned by Saguez&Partners, with 2 catering options, modular rooms and a fitness centre.

Parking

369 parking spaces, including 120 electrified spaces and 100 bicycle spaces.

Location

Excellent public transport links with lines 9, 15 and T2.

Services available

Meeting hub

Un meeting hub avec des salles de réunion modulables et un business center accessible sur Horizons à moins de 2 min à pied.

Restaurant

Forget banal restaurants and impersonal meals, the restaurant invites you to an exceptional culinary experience. Overlooking Billancourt park, it offers an oasis of flavour and conviviality. Enjoy a varied cuisine, prepared with fresh seasonal produce.

Fitness area

Khapa also has a fitness area, so you can enjoy an invigorating pilates session before starting your day, unwind after an intense meeting with a relaxing yoga class, and a whole host of other activities to shape your day.

The central square

Khapa's central atrium is 7 storeys high, with 10 interior walkways linking the light-filled office floors. Featuring a Youfirst Café, this modular space encourages creative exchange.

Auditorium

Thanks to the pooling of services provided by Gecina's portfolio assets in Boulogne, a 299-seat auditorium is available at Citylights (a Gecina portfolio asset), a 5-minute walk away, with an integrated control room, a foyer and pantry, and an auxiliary kitchen, for all your large-scale events; a 134-seat auditorium at Horizons is less than 2 minutes' walk away. 

 

 

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Commitments, labels and certifications

Biodiversity
Khapa is fully committed to biodiversity by creating green spaces such as the 360° rooftopBiodiversity and gardens, which provide a habitat for local flora, and landscaping choices that contribute to the creation of a pollinator-friendly environment.

Discover the area's points of interest

Public transport access

Métro

Métro Métro 9

Pont de Sèvres - Mairie de Montreuil

Pont de Sèvres
8 min
Métro Métro 15

Pont de Sèvres - Saint-Denis Pleyel

Pont de Sèvres
8 min

Tramway

Tramway T2

Pont de Bezons - Porte de Versailles

Brimborion
8 min

Site plans

Table of available floor space

Level 

Gross leasable area 

Estimated maximum capacity

Ground floor 1 West

1,341 sq.m

 

R+1 East

1,327 sq.m

 

R+2 West

busy

 

R+2 East

1,340 sq.m

 

R+3 West

busy

 

R+3 East

1,324 sq.m

 

R+4 West

busy

 

R+4 East

1,337 sq.m

 

R+5 West

1,339 sq.m

 

R+5 East

1,329 sq.m

 

R+6 West

1,343 sq.m

 

R+6 East

1,334 sq.m

 

R+7 West

1 293 sq.m

 

R+7 East

569 sq.m

 

West Mezzanine (R+8)

330 sq.m

 

Total

14,206 sq.m

1,200

Main technical elements of this space

Total surface area :
14 206 sq.m
Number of floors :
7 floors
Secability :
per floor
Maximum capacity :
1,200 people
Ceiling height :
2.7 metres
False floor :
yes
Regulations :
French Labour Code
Decree tertiary 2040 :
Yes
Morgane Ogier

Contact us

Morgane Ogier

Responsable Commerciale

morganeogier@gecina.fr
07 62 50 41 47