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Healthy Homes: understanding the impact of energy efficiency upgrades on the home, carbon emissions, and resident health

Evaluating the indoor environment, health, carbon emission, economic outcomes of retrofitting social housing properties to improve energy efficiency in a low-income multi-ethnic population: a quasi-experimental study with process evaluation

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ISRCTN
Registry ID
ISRCTN32222362
Enrollment
430
Registered
2025-07-30
Start date
2025-07-15
Completion date
Unknown
Last updated
2025-11-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Public Health, Persons with potential health hazards related to socioeconomic and psychosocial circumstances Other

Interventions

The Healthy Homes project is structured into four work packages (WPs) with both quantitative (WP1, WP2, WP3A + 3B) and qualitative (WP4) methods. WP1 and WP4 will require engagement with the public, r

Sponsors

Bradford Teaching Hospitals NHS Foundation Trust
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 99 Years

Inclusion criteria

Inclusion criteria: WP1 1. Homes managed by Incommunities, with energy performance certificate EPC) rating less than ‘C’ and identified for retrofitting 2. Eligible homes will have retrofitting scheduled from March to October 2026 (intervention) Or after March 2027 (Control group). Ideally the control homes are a close match to the intervention homes in building age, type, and EPC 3. Residents of eligible home able to give informed consent and are 18 years or over WP4 Interviews with resident 1. Participants who consented to WP1 and whose household is part of the intervention group 2. After a participant of such a household consented, other residents with minimum age 18 years of the same household will become also eligible , if they are able to give informed consent Non-resident Stakeholder interviews 1. Participants over the minimum aged of 18 years and have consented to be interviewed 2. Participants involved in social housing and delivering good indoor air quality Peer Researchers 1. Participants over the age of 18 years and consented to be part of study 2. Participants who belong to the same community where the research is taking place 3. Able to speak English well (additional languages welcomed)

Exclusion criteria

Exclusion criteria: WP1 1. Households which are not scheduled for retrofitting according to the required timeline 2. Language barrier that can not be overcome with support of bilingual research assistants 3. Lack capacity for informed consent WP4 Resident Interviews 1. Households which are not scheduled for retrofitting according to the required timeline 2. Lack capacity for informed consent 3. Language barrier that can not be overcome with support of bilingual research assistants Non-resident stakeholder interviews 1. Not involved in social housing or air quality 2. Lack capacity for informed consent 3. Language barrier that can not be overcome with support of bilingual research assistants Peer researchers 1. Lack capacity for informed consent 2. Unable to speak English well

Design outcomes

Primary

MeasureTime frame
Temperature measured via the AirGradient sensor in 5-minute periods continuously from baseline until monitoring ends in Spring 2027

Secondary

MeasureTime frame
1. Indoor air quality (PM2.5, CO2, NO2, relative humidity) measured via the AirGradient sensor in 5-minute periods continuously from baseline until monitoring ends in Spring 2027 2. Energy use measured via energy meter readings at four time periods: the start and end of winter 2025/2026 and start and end of winter 2026/2027 3. Mould concentrations measured via a mould sensor in winter 2025/2026 and winter 2026/2027 (in a subset of homes) 4. Resident thermal comfort and satisfaction measured via questionnaire in winter 2025/2026 and in winter 2026/2027 5. Resident self-reported respiratory and mental health via questionnaire in winter 2025/2026 and in winter 2026/2027

Countries

England, United Kingdom

Contacts

Public ContactDagmar;Tiffany Waiblinger;Yang

;

Dagmar.Waiblinger@bthft.nhs.uk;Tiffany.Yang@bthft.nhs.uk+44 1274383317;-

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026