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1、建筑面积密度、容积率、建筑密度的计算公式(Calculationformulaofdensity,volumerateandbuildingdensityofbuilding)建筑面积=套内建筑面积+公摊面积公摊面积=公摊系数*套内建筑面积公摊系数=总公共分摊面积/(套内建筑面积*总套数)套内建筑面积=套内使用面积+墙体面积-阳台面积影响公摊面积的因素：1、户型同一栋楼里一梯一户、一梯两户和一梯三户是不一样的，点式楼和板式楼是不一样的。2、套内面积房子大就多点，房子小就少点3、公共设施只有楼梯和既有楼梯又有电梯是不一样的，公共设施、走廊越多公摊就越大。4、建筑规模楼梯高度越高公摊越大。普通住宅
2、的一般公摊比例：多层：8%15%小高层：10%20%高层：15%30%公摊面积怎么算当购房逐渐成为大部分人的人生必经之事后，购房者对房地产市场上的种种行为的不满和投诉也是越来越多。购房者之所以意见特别大的原因之一就是在买房过程中，有许多事情是他们弄不清楚，把握不了的。房屋的公摊面积就是其中最不透明的一项，很多购房者根本搞不清什么是公摊面积？公摊面积与公摊系数什么是公摊面积？所谓公摊面积，是分摊的公用建筑面积的简称，它与套内建筑面积之和构成了一套商品房的建筑面积。什么是公摊系数？公摊系数是一栋建筑的总公摊面积与总套内建筑面积的比例。公摊系数需要注意的是它只针对单一建筑，不是所有建筑的公摊系数都一
3、样的，每栋建筑都有自己的公摊系数。注：建筑面积二套内建筑面积+公摊面积套内建筑面积二套内使用面积+套内墙体（柱）面积+阳台面积不可计入的公摊面积有哪些大堂、公共门厅、走廊、过道、电（楼）梯前厅、楼梯间、电梯井、电梯机房、垃圾道、管道井、水泵房、消防通道、变（配）电室、值班警卫室等，以及为整幢服务的公共用房和物业管理用房以及其他功能上为该建筑服务的专用设备用房；每套与公用建筑空间之间的分隔墙及外墙（包括山墙），为墙体面积水面投影面积的一半。公摊面积怎么计算仓库、机动车库、非机动车库、车道等，作为人防工程的地下室、单独具备使用功能的独立使用空间；售房单位自营、自用的房屋；为多幢房屋服务的警卫室、管
4、理（其中包括物业管理）用房。不可计入的公摊面积有哪些分摊公用建筑面积的计算方法：分摊的公用建筑面积二套内建筑面积*公用建筑面积分摊系数公用建筑分摊系数二公用建筑面积/套内建筑面积之和公用建筑面积二整幢建筑的建筑面积一套内建筑面积之和-不应分摊的建筑面积注意事项高层楼房的分摊面积要大于多层的分摊面积。一般来说，高层的分摊系数在0.18-0.26之间，多层的分摊系数在0.11-0.16之间。这位专业人士也强调，每个楼盘，要根据房屋的使用功能和相关配套情况来定，没有限定的范围，因此房屋的公摊面积要以实地测量为准。建筑面积密度、容积率、建筑密度的计算公式(CalCUlationformulaofden
5、sity,volumerateandbuildingdensityofbuilding)BuildingareadensityThedensityofbuildingareaisthemainindextoreflecttheuseintensityofbuildingland.Whencalculatingthegrossfloorareaofabuilding,itusuallydoesnotincludesubsurfacefloorareabeloworbelowzero.Theformulaofdensityofbuildingareais:Buildingareadensity=(
6、totalconstructionarea)(m2/hm2)PlotratioVolumeratioisanimportantindextomeasurethestrengthofconstructionlanduse.Thevalueofthevolumerateistheratioofdimensionless,usuallywiththeplotareaof1,thetotalbuildingareaoftheblockisamultipleoftheplotarea,namelytheformulaforthevolumerateisasfollows:Volumerate=gross
7、floorareaoftotalbuildingareaBuildingdensityBuildingdensityisoneofthemainindicatorsreflectingtheeconomyofbuildingland.Thecalculationformulais:Buildingdensity=thetotalareaofthebuildingareaTotherateInthefieldofmarketing,therateofdealizationisthesalesratewithinacertainperiodoftime.Tntherealestatearea,it
8、isreferredtoasthesalesrate,whichmainlyreferstothepercentageofthesalesvolumeofacertainproductinacertainperiod.Rateofdeation=salesnumber/totalnumberofunits(derate=thenumberofhousessold/numberofhousessold)Theamountofdeification=salesvolumeistheTaiwanmethod,themainlandisthesalesrate.AfforestationrateThe
9、ratioofthegreenareawithintheprojectplanningandconstructionlandareatotheareaoftheplannedconstructionlandarea.However,thegreenrateisonlytheconceptthatdevelopersusetopromotethegreeningofbuildings,andthereisnobasisforlawsandregulations.Themeasurespecifiedinlawsandregulationsinthebuildinggreeningsituatio
10、nofthenationalstandardistherate,therateisreferstothevillagelandwithinthescopeoftheratioofthesumtotalofallkindsofgreenspaceandresidentialland,mainlyincludingpublicgreenspace,buildingnearbygreenspace,roadgreenspaceandutilityattached,itscomputationthanstrictlyalotofgreenarea.Calculationformula:greenlan
11、drate=greenarea/landareaRateisusuallylowerlimitcontrol:notthegrassyplacescanbeexactlytherate,isapartfromtheconstructionexteriorwalls1.5metersandwithinline1metersoflandandlandsurfacecoveringuptolessthan3mdepth,whetherthemhavegreen,arenotincludedinthegreenarea.GreenlandratereferstovariousgreenSpacesin
12、residentialareasmainlyincludingpublicgreenspace,residentialgreenspace,greenspaceandroadgreenSpaces.Thepublicgreenspaceisnotmorethanonepercentofthesculpture,pool,pavilionsandothergreenlightbuildingscanberegardedasgreenspace.Thegreenrateisaninaccurateandirregularterm,andthecorrectmethodshouldbez,green
13、coverage”.Greencoverageratereferstotheverticalprojectionareaofthesumandtheratioofresidentialland,relativelybroad,roughgrassyplacescanbeclassifiedasgreen,greencoveragerateishigherthangeneral.RoadredlineRoadredlineTheboundarylineoftheplannedcityroadroadreflectsthewidthoftheroadredline,anditscompositio
14、nincludes:roadwidthrequiredforthepassageofmotorvehiclesornonmotorvehiclesandpedestriantraffic;Thewidthrequiredforlayingunderground,above-groundengineeringpipelinesandurbanutilities;Plantingthewidthrequiredfortherowtree.Nobuildingorstructureshallcrosstheroadredline.Accordingtotherequirementsofthecity
15、landscape,thebuildingsalongthestreetcanbebuiltfromtheoutsideoftheroadredline.NetpopulationdensityThenetdensityofpopulationisoneoftheimportanteconomicandtechnicalindicatorsofresidentialareaplanning,reflectingtheintensityoftheuseofresidentiallandinresidentialareas.Theformulais:Netpopulationdensity=res
16、identiallandarea(humanhm2)BuildingspacingArchitecturalspacemainlyaccordingtotheareaofsunshine,ventilation,daylighting,preventinterferenceofnoiseandthelineofsight,fireproof,shockproof,greening,pipelineembedment,architecturallayoutform,aswellastheeconomicaluseoflandandsoonrequest,comprehensiveconsider
17、ation.Houseisdecoratedinmostregionsofourcountry,usuallyinordertosatisfytherequirementofsunlightasthemainbasistodetermineconstructionspacing,determinethepublicservicefacilitiesinthenurseries,kindergartens,thefrontofthehospitalwardbuildingspacing,andapplythisprinciple.SunshinestandardTheamountofsunshi
18、neinthesunshinestandardincludestwostandards:sunshinetimeandsunshinequality.Sunshinetimeisthestandardforthesunshinehoursoftheresidentialxiangyangroomintheprescribedsunshinestandardday.Thequalityofsunshinereferstotheamountofsunlightperhourandtheamountofuvradiationinsunlight.InJuly1993,theregulationson
19、urbanresidentialareaplanninganddesign(gb501893)jointlyissuedbythenationalbureauoftechnicalsupervisionandtheministryofconstruction(gb501893)issuedaclearstipulationonthestandardofsunshineinresidentialbuildings;Amongthem,thestandarddayofsunshineisadoptedforthewintersolsticedayandthedaytwostandard.Urban
20、roadarearateUrbanroadarearateisanimportanteconomicandtechnicalindextoreflecturbanroadownershipinurbanarea.Theurbanroadsreferredtohererefertotheurbantrunkroads,sub-trunkroadsandsub-branches,notincludingtheroadsintheresidentialareas.Thecalculationformulaofurbanroadarearateofjichengdistrictisasfollows:
21、Urbanroadarearatio=(thetotalareaoflandusedintheconstructionareaoftheconstructionarea)(%)Itisalsopossibletocalculatetheurbanroadarearateoflocalareasinthecompletedarea.Theformulais:道路面积率二(道路用地总面积？建设用地总面积)(%)TherateThetotalrateisreferstoabuiltinurbanareaofvariousurbangreenlandareaaccountsfortheproporti
22、onofthetotalareaofthecityproper,hereallkindsofgreenlandmustconformtothenationalstandard,standardofurbanlandclassificationandplanningconstructionIaner(GBJ13790).Itcanalsocalculatethegreenlandrateofcertainareasinthecompletedarea.Theproportionofthetotalareaoflandusedfortheresidentialareasinresidentialareas(%).Thegreenlandrateisoneofthebasicindicatorstoreflecturbangreeninglevel.
