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The validated PHPP8.5 document for the design, modelling, and certification of LT-PH3, the first single-family passive house in Lithuania, is provided. It contains all the key data on the building and its surroundings that were used in studies [S1] and [S2]. Study [S1] evaluated the first single-family “passive house” in Lithuania (LT-PH3), built in Vilnius and certified by the German Passive House Institute in 2015. The aim of the study was to investigate the correlation between the heat consumption of the LT-PH3 building, as modelled during the design process, and the measured operational data, to increase confidence in the application of the “Passive House” standard. The study presents a detailed analysis of the 2016–2020 monitoring results, based on measured data on the heat pump’s electricity consumption and outdoor and indoor air temperatures. The seasonal parameters of the heat pump were evaluated using the “Passive House Planning Package” (PHPP) and the “Aquarea Designer Online Simulation Software Tool” (Aquarea), while the building’s operational heat consumption was analysed and compared with the design consumption obtained using: PHPP for design, “Swegon ESBO Light” (Swegon) to validate the design using PHPP, and the Lithuanian National Building Energy Performance Certification Program “NRGsert.” The study showed that the design heat consumption modelled by PHPP and “Swegon” is close to the operational heat consumption, both calculated based on electricity consumption and measured by a heat meter. This confirmed that when modelling one of the key comfort criteria—the building’s actual indoor air temperature and the heat flow required to maintain it—results close to actual operational performance can be expected. Based on these results, the LT-PH3 PHPP 8.5 model was selected as the primary [S2] analysis tool for this study, and the LT-PH3 basic comparative data (BCD) were used as a constant.本数据集提供了立陶宛首个独栋被动房LT-PH3的设计、建模与认证所用的经验证的被动房规划包8.5（Passive House Planning Package，PHPP）文档。该文档包含了研究[S1]与[S2]中所使用的该建筑及其周边环境的全部关键数据。 研究[S1]针对立陶宛首个独栋被动房LT-PH3展开评估，该建筑建于维尔纽斯，并于2015年通过德国被动房研究所（German Passive House Institute）认证。该研究的目标为探究LT-PH3建筑在设计阶段建模得出的热负荷与实测运行数据之间的相关性，以提升业界对“被动房”标准应用的认可度。 本研究基于热泵耗电量、室外及室内空气温度的实测数据，对2016至2020年的监测结果展开了详细分析。 研究采用被动房规划包（PHPP）与Aquarea Designer在线仿真软件工具（Aquarea Designer Online Simulation Software Tool，Aquarea）对热泵的季节运行参数进行了评估；同时针对该建筑的运行热负荷展开分析，并将其与通过三种方式得到的设计热负荷进行对比：用于设计建模的PHPP、用于PHPP设计验证的Swegon ESBO Light（Swegon），以及立陶宛国家建筑能源性能认证计划NRGsert。 研究表明，通过PHPP与Swegon建模得到的设计热负荷，与基于耗电量计算且经热量计实测的运行热负荷高度吻合。 这证实了，在对核心舒适标准之一——建筑实际室内空气温度及维持该温度所需的热流量——进行建模时，可获得与实际运行性能高度吻合的结果。 基于上述结果，本研究选用LT-PH3的PHPP8.5模型作为主要[S2]分析工具，并将LT-PH3基础对比数据（Basic Comparative Data，BCD）设为恒定基准。