As an Istanbul based company, NN Group is a firm of building envelope and curtain wall consultancy, established by architectures who are experts in their fields.
  • Pre-Project (Concept) Stage
    * The analysis of the restrictions regarding the building envelope * The evaluation of design and performance targets
  • Design Development Stage
    * Preparation and approval of the facade concept project * The preparation of system detail drawings and specifications
  • The Preparation of Tender Documents and Technical Specification
    * The preparation of two-dimensional drawings related to
  • Bid Evaluation Stage
    * The evaluation of preliminary qualification of the sub-contactors * The detection and evaluation of the compliance of the proposals of bid
  • Project and Application Control Stage
    * The review of the quality control programs of sub-contractors and suppliers * Field test management
Address : Madenler M. Şehit Ünal Kalafat C. No:32 Ağaoğlu Eltes Gold Rezidans D:147 Ümraniye / İSTANBUL
Telephone : +90 216 594 13 50
Mail :