ITU‐T's Technical Reports and Specifications 455 Table of Contents Page 1 Intelligent sustainable buildings ............................................................................. 459 1.1 Introduction .................................................................................................... 459 1.2 The fourth utility ............................................................................................. 460 1.3 Access control and security systems .............................................................. 460 1.4 Elevators and escalators ................................................................................. 461 1.5 Lighting ........................................................................................................... 461 1.6 Signage ............................................................................................................ 461 1.7 Building condition monitoring ........................................................................ 462 1.8 Underlying philosophy .................................................................................... 463 1.9 Standards, codes and initiatives ..................................................................... 464 2 Intelligent sustainable building roadmap ................................................................ 465 2.1 Subjective versus objective evaluation .......................................................... 465 2.2 Buildings versus Community .......................................................................... 466 2.3 Technologies ................................................................................................... 467 3 Types of buildings ................................................................................................... 468 3.1 Single family .................................................................................................... 468 3.2 Residential multi‐unit ..................................................................................... 469 3.3 Commercial buildings ..................................................................................... 469 3.4 Hotel ............................................................................................................... 469 3.5 Hospital ........................................................................................................... 470 3.6 Factory ............................................................................................................ 470 3.7 Intelligent buildings and new business opportunities ................................... 470 4 Other aspects ......................................................................................................... 471 4.1 Operating costs and occupant comfort .......................................................... 471 4.2 Tenants' satisfaction ....................................................................................... 471 4.3 Maintenance ................................................................................................... 471 4.4 Evaluation – How Intelligent is an \"Intelligent\" building? .............................. 473 4.5 New business opportunities for the building sector and ICT industry ........... 473 5 Climate change adaptation ..................................................................................... 474 6 Examples of Intelligent buildings ............................................................................ 475 6.1 Molson Center ................................................................................................ 475 6.2 Terminal Windsor ........................................................................................... 476 6.3 Flint Mass Transportation Authority Downtown Terminus ........................... 476 6.4 Wellesley Long Term Care .............................................................................. 477