Beirut, Lebanon

M1

M1 is an 11-story commercial complex and the first and only LEED Platinum certified project in Lebanon. The building is able to reduce consumption by 31% compared to a baseline building (based on ASHRAE 90.1-2007) via climate-friendly technologies such as VRV air conditioning systems, high-performance glazing, efficient lighting with controls and dimming, and a PV system to name a few.

Description

M1 is a commercial complex that includes office and retail spaces. It has achieved the highest level of certification available in LEED. With regard to energy performance, the building is able to reduce consumption by 31% compared to a baseline building (based on ASHRAE 90.1-2007). This is done through the use of efficient VRV air conditioning systems, high-performance glazing, efficient lighting with controls and dimming, low consuming elevators, and a full BMS system. In addition, the building is equipped with a PV system that is able to cover 1.75% of the building's needs.

Project info

Construction phase
New construction
Building type
Non-residential building
Detailed building type
Office
Net floor area
19200 m2
Land plot size
2738 m2
Stories
11 stories
Construction type
Concrete
Original construction year of the building
2016
Project contact
Abdulrahman El Hajj
Contact email address
ahajj@m1group.com

Project team

Developer(s)/owner(s)
M1 Real Estate
Architect(s)
Jo Geitani Architects
Construction contractor(s)
ACC
Energy efficiency consultant(s)
EcoConsulting
HVAC consultant(s)
SERT
Building services
SERT
Other project team partners
EEG, Apave

Building Rating and Certifications systems

Rating and certifications systems
LEED

Building Envelope

External walls

Description of construction
Mineral wool insulation
U-Value
0.67 W/(m²*K)

Roof

Roof type
Flat roof
Description of construction
XPS insulation
U-Value
0.26 W/(m²*K)

Openings and windows

Glazing type
Double glazed
Frame material / description
Aluminum
Description of construction
Low e double glazing 8/16/10

Basement floor

Description of construction
Concrete Slab
U-Value
2.7 W/(m²*K)

Technical Building Systems

Ventilation system

Type of ventilation
Mechanical ventilation system with heat recovery
Description
Wheel heat exchanger on fresh air

Space cooling system

Primary space cooling system
Centralised chiller │Usually a central system located in the basement
Description
VRV system

Space heating system

Primary Space heating system
Air-conditioning system (reversible for heating; air-air heat pump)
Description
VRV system

Water heater system

Primary water heater system
Dedicated electric heater (dedicated = just hot water generation)

Lighting system

Primary lighting system
LED (Light emitting diode lamps)
Description
With lighting controls and dimming

Photovoltaics

Capacity
40 kWp
Total module area
242 m²

Final Energy Demand

Energy carrier (1)
Electricity
Annual heating demand
2.38 kWh/(m²*a)
Annual cooling demand
32.4 kWh/(m²*a)
Annual lighting demand
38.5 kWh/(m²*a)
Annual hot water demand
25 kWh/(m²*a)
Total final energy demand
163.22 kWh/(m²*a)