Construction of a New Main Entrance Building at the United Nations Compound in Bangkok, Thailand

     A. Introduction The United Nations Economic and Social Commission for Asia and the Pacific (UNESCAP) aims to construct a New Main Entrance building in front of the existing Conference Centre (UNCC) located in Bangkok, Thailand, to accommodate security screening, visitor entry and conference registration. UNESCAP is seeking a single qualified firm or Joint Venture (JV) or consortium to perform these construction works. Interested firms shall respond to this REOI by 02:00 pm (Bangkok time) on 20 June 2024 via email to mengri@un.org and escap-pu@un.org. Additional requirements are described further on. B. Project Scope Work includes, demolition, structural foundation and superstructure, mechanical, electrical, plumbing, fire alarm, fire sprinkler, interior finish and landscaping works. C. General Scope of Works: The awarded bidder will construct a new one-story building at the UNESCAP compound. Work includes, demolition, structural foundation and superstructure, mechanical, electrical, plumbing, fire alarm, fire sprinkler, interior finish and landscaping works. Pre-construction: • The contractor is responsible it method statement, shop drawings, material data sheets and samples for approval with regards to all work. • The contractor is responsible for all material testing through the authorized institute for UN approval. • Connect temporary services as needed to execute the construction work. Site and Demolition Works: • Install hoarding to isolate the site area for safety on Lower basement, Upper basement, and ground floor. • Install signage showing the project information and privacy graphics on the hoarding. • Dismantle existing utility system and prepare for construction. • Remove existing flag poles. • Demolition of existing flooring, walls, doors, stairs, and utility systems in the existing building area. • Removal and demolition of existing garden to existing post- tension slab, concrete curb, concrete slab, soil, and waterproof membrane. • Demolition of the existing fire exit staircase from 2 levels of basement to ground floor • Demolition of the fountain control room at upper basement. • For the demolition and removal work, safety precautions must be taken for the area where some materials are identified as hazardous. For example, stone cutting, removal of hazardous glue, etc. Construction works: • Construction of a new one story entrance building, security screening area, visitor and participant registration area, security offices and services rooms. • Construction of a new building structure within the existing UNCC. • Integration of the new structure into the existing building. Strengthen basement structure and construct a new building on ground floor in front of the UNCC. • Construct new steel fire exit staircase to accommodate the new building. • Supply and install new flagpoles of 62 members and United Nations with new mechanism. • Relocate the existing flood barrier and modification of the main pedestrian gate with new mechanism. • Construct new AHU room at the upper basement. • Modification of exiting fence to the new main entrance area • Submission of shop-drawing and as-built drawing in BIM formatted. Interior works: • New fit-out works for entrance hall, screening area, reception and visitor area, security offices, accessibility bathroom, and mechanical and server rooms. The works are including built-in and free-standing furniture, partitions and wall, door and window, glazing, flooring and ceiling. Mechanical and Electrical Works: • Installation of new HVAC system, using existing chilled water or new split gas systems. • Installation of new electrical system including distribution board. • Installation of new communication and network LAN system. • Modification of existing drainage and piping. • Modification and installation of firefighting system • Modification and installation of supply and drainage system for new bathroom and external landscape area Landscape works: • Construct new pavement, covered walkway and hardscape as specified. • Construct new planter at fit with specified plants. • Construct new ramps and stairs to accommodate the new layout. Commissioning testing and handover: • Prior to the completion of the project, the Contractor is responsible for final commissioning, testing, and any necessary training for ESCAP's final acceptance and handover, all without additional fee. Total Area of Construction (approximately) = 2,000 Sq.m. • Lower Basement = 60 Sq.m. • Upper Basement = 100 Sq.m. • Ground Floor a. Interior = 340 Sq.m. b. Outdoor Area and Garden = 760 Sq.m. • Roof = 740 Sq.m.