Household　heat　metering　plays　a　significant　role　in　building　energy　efficiency　and　has　become　an　inevitable　trend　in　northern　China.　Precise　supplying　aims　to　ensure　indoor　thermal　comfort　while　realizing　energy　saving　with　occupants＇　behavior.　Due　to　the　different　indoor　temperature,　interior　envelope　material　and　occupancy　rate　of　each　room,　the　Adjacent　Room　Heat　Transfer　(ARHT)　will　greatly　affect　the　fair　heating　charging　under　household　heating　metering.　This　study　takes　an　office　building　in　Beijing　as　the　object　to　measure　the　indoor　and　outdoor　temperature　in　winter.　EnergyPlus　is　adopted　to　establish　a　building　model　and　calculate　the　heating　load.　The　time-dependent　temperature　of　the　simulated　room　is　compared　with　the　hourly　measured　temperature　to　validate　model　accuracy.　The　validated　model　is　further　adopted　to　calculate　the　ratio　of　ARHT　under　three　different　conditions.　The　result　indicates　all　these　three　factors　have　important　impacts　on　ARHT.　The　ratio　of　ARHT　to　the　real　total　heating　load　could　stay　around　40%　and　even　reach　up　to　70%.　The　result　shows　an　unexpected　influence　of　ARHT,　while　it　provides　a　case　study　for　fair　allocation　of　heat　charges,　which　is　vital　to　the　implementation　of　household　heat　metering　in　China.