Thisresidencewasdesignedforaclientwhorelocatedfromthecitytoaruralhighlandareawiththeintentiontoworkremotely.Thesiteischaracterizedbyagentleslopethatrunsfromthewestside,whichfacesaroad,totheeastbeforedroppingsharply.Asmallstreamflowsbelow,formingamodestvalley.Asaresult,thereisasignificantdistancebetweentheresidenceandthenearesthouse,locatedacrossthevalley,andtheviewonthissideismarkedbytreesthatcascadedowntheslopeinadense,layeredarrangement.Tomakethemostofthesesurroundings,thesoutheastcorneroftheresidencewasdesignedtoaccommodatealargepicturewindow.

▼住宅外观，exteriorview©KoichiTorimura

▼秋景，autumnview©KoichiTorimura

轻井泽镇夏季凉爽宜人，但冬季严寒，气温可降至零下10°C以下。因此，当地住宅的地基必须打在冻土层以下。尽管有时地基与上部结构分开设置，但本案的主体结构同样位于冻土层以下。应业主要求，地下空间被有效利用，设有一张标准尺寸的台球桌，并作为住宅整体设计的一部分，增添了生活的趣味性和价值。

ThetownofKaruizawaisknownforitscoolandrefreshingsummers,butthewinterscanbeharsh,withtemperaturesdroppingbelow-10°C.Becauseofthis,thefoundationsofhomesheremustbebuiltbelowthefrostdepth.Whilepartsofhomefoundationsherearesometimesdugindependentlyfromtheirmainstructures,thestructureitself,inthiscase,alsoliesbelowthefrostdepth,andthisportionofthehousewasutilizedeffectively:attherequestoftheclient,afull-sizebilliardtablewasinstalledinthisbelowgroundsection,whichwasincorporatedintothedesignoftheresidenceasavalue-addingenhancement.

▼室内概览，overallofinterior©KoichiTorimura

▼生活区，livingspace©KoichiTorimura

为应对冬季寒冷，住宅地面下方配备了一套水基热能储存系统。该系统吸收日间温差，使室内热环境保持稳定。同时，两台热泵空调系统提供全天候的气候控制。住宅还配有一台木柴炉作为辅助热源。而在适合引入外部空气的时段，热储系统可单独运作以调节温度波动。此外，前述位于冻土层以下的基础部分，也被纳入该热能储存系统的一环。

Tocombatthewintercold,thehousefeaturesawater-basedthermal-energystoragesystembeneaththefloor.Thissystemabsorbstemperaturechangesthroughouttheday,creatingthermalstability,whiletwoheatpumpairconditionersensure24-hourclimatecontrol.Thereisalsoawood-burningstoveforuseasaheatsource,andattimeswhenlettinginoutsideairisthemostcomfortableoption,thethermalstoragesystemisusedsolelyforregulatingtemperaturefluctuations.Thefoundationbelowthefrostdepth(asexplainedabove)alsofunctionsaspartofthethermalstoragesystem.

▼“人造地形”的空间语言，new“terrain”withinthearchitecture©KoichiTorimura

▼景观的画框，frameviews©KoichiTorimura

▼细部，details©KoichiTorimura

▼走廊与楼梯，corridorandstairs©KoichiTorimura

建筑中央设有一面木桁架剪力墙，由60毫米厚的构件构成立方网格，并辅以45毫米的斜向构件增强水平荷载的抵抗能力，再由30毫米的次斜撑进一步加固，层层递进的结构提高了整体的屈曲强度。这一结构不仅具备功能性，也在视觉上巧妙地影响了空间的尺度感，为室内营造出一种动感且精致的氛围。

Nearthecenterofthebuildingisawood-trussshearwall,createdusing60-millimeter-thickmateriallaidoutonasquaregridandreinforcedby45-millimeterdiagonalmembers.Thesediagonalmembersalsofunctionasbracingforhorizontalloadsandarefurtherreinforcedbysmaller30-millimeterdiagonalmembers.Thisprogressivereinforcementenhancesthewall’sbucklingstrength.Inadditiontoservingafunctionalrole,thisstructuralelementmakesasubtleyetdynamiccontributiontotheinterioraestheticbyinfluencingtheperceptionofscalewithinthespace.

▼台球桌，thebilliardtable©KoichiTorimura

▼书房，study©KoichiTorimura

▼细部，details©KoichiTorimura

▼浴室，bathroom©KoichiTorimura

住宅的断面构成相当复杂。虽然从技术上讲它是一座两层建筑，但其内部空间被划分为多个错层区域，同时整体上又维持了空间的连贯性。这种空间平衡通过六个精心设计的楼层高差实现，每一个楼层都根据其功能量身打造。设计不仅回应了地形的自然高差，还在建筑内部创造了一种“人造地形”的空间语言，形成了具有独特层次感的居住体验。

Thecross-sectionalcompositionoftheresidenceisquitecomplex.Althoughitistechnicallyatwo-storybuilding,thedesigndividesthespaceintomultipledistinctlevelswhileatthesametimemaintainingaunifiedfeelthroughoutthewholeinterior.Thisspatialbalanceissupportedbysixcarefullydefinedfloorlevels,eachtailoredtotheneedsspecifictoeacharea.Inthisway,thedesignprocessinvolvednotonlyrespondingtotheland’stopographybutalsocreatingadistinctivenew“terrain”withinthearchitectureitself.

▼夜景，nightview©KoichiTorimura

▼剖面图，section©TakeshiHirobeArchitects