The Smartline sensor datasets include utility usage (Gas, Water, Electricity), indoors environmental parameters (Temperature, Humidity, TVOC - Total Volatile Organic Compounds, eCO2 - Estimated Carbon Dioxide, P.M2.5 - Airborne Particulate Matter <2.5µm diameter) recorded in 279 properties, and external air quality (same parameters as indoors, plus P.M10 - Airborne Particulate Matter <10µm diameter). Data were recorded at ~5-minute intervals, with the first sensors commencing in 2017, and the last sensors recording until the end of March 2023. Data are split in to separate folders for each type of sensor, and divided into the individual datasets provided, each representing a unique combination of sensor identity and property reference. A metadata file gives additional information about the project participants and their homes where data was recorded. A missingness matrix file describes temporal coverage, both for each sensor type and for each individual sensor data file. A technical report describes the project, datasets, sensors, and attached files in detail.More than 300 households were recruited in 2017 to take part in the Smartline project to provide data on health, wellbeing, community, indoor environment and utility usages. The overarching aim of the project was to explore and trial opportunities for technology to support people to live healthier and happier lives in their homes and communities. 329 households completed survey questionnaires and 279 opted to have sensors installed. The network of sensors, from which the accompanying data derive, provide opportunities to gain insight in to existing utility usage and environmental conditions in homes. Surveys of participating households were undertaken at several points in the project and linked to sensor data, enabling better exploration of the everyday human lives behind the sensor data. Many of the sensors have recorded data spanning more than 5 years, capturing regular patterns resulting from participants daily routines, seasonal climatic variation, and local weather activity. Unexpected events such as the Covid-19 pandemic, cost of living crisis, and a record summer heatwave all fall within the timeframe of the sensor data.

Up to 8 sensors monitoring utility usage (Gas, Water, and Electricity) and the indoors environment (Temperature, Humidity, TVOCs, PM2.5, and eCO2) were installed in each of 279 homes. External environmental sensors (monitoring Temperature, Humidity, TVOCs, PM2.5, PM10, and eCO2) were installed on the outside of a subset of homes. Data was transmitted wirelessly to an online storage system where participants could access real-time and historic data for their own homes. Data collection began in October 2017 and ended in March 2023. Raw data was cleaned, anonymised, and divided in to individual files for combinations of specific sensors (SensorID) installed in each home (HomeID), before being split by sensor type in to the folders provided here. The included Technical Report contains further detail of the study background, data collection methods, overview data for the study's homes and participants, and further description of the data files. Grouping factors for metadata are restricted to limit group sizes to 5 or above.