3 achievements
Architectural agency based in Essonne and specializing in the renovation, elevation and extension of existing houses and the construction of new housing, individual or collective.
14 property type
Apartment
Single-Family Homes
11 type of work
New Build
Renovation
6 services
Design / Plans
Planning permission application
9 achievements
Constantly seeking a balance between the sensitive and the functional, OSA is involved in housing and tertiary equipment operations, in all phases.
17 property type
Apartment
Single-Family Homes
11 type of work
New Build
Renovation
4 services
Design / Plans
Planning permission application
