Hometwin collects property information into a single digital hub. Secure, complete and always up-to-date. Residents gain control over their homes, while municipalities, mortgage lenders and energy companies collaborate on a transparent approach to sustainability. From maintenance and energy performance to subsidies and WOZ (EN: Valuation of Immovable Property) data: Hometwin makes property data accessible and usable.
The building blocks of an effective property dossier
- Digital hub: one place for maintenance, energy, subsidies and value.
- Always up-to-date: automatic link with public databases such as BAG and WOZ (NL).
- Collaborate with confidence: easily share data with advisors, contractors or family.
- Safe & European-proof: ISO 27001-certified, GDPR-by-design and compliant with EU standards.
- Sponsorship model: municipalities, banks and energy companies offer residents a free account.
From insight to action
Everything in one location
Maintenance, invoices, photos, reports & subsidies in one file.

Never lose receipts again
Always available digitally.

Apply for subsidies easily
Direct insight into regulations and quick links to subsidies.
Transfer when moving
Home data can easily be transferred to the next owner.
Photo & video archive
Visual history of improvements & maintenance.
Selective sharing
Only share information with the municipality, contractor or bank that you want.
Results that count
Hometwin gives residents control over their homes. More than 100,000 users in 30 municipalities and a major Dutch bank actively use the digital housing file. Residents are utilizing subsidies more frequently and making more informed choices; municipalities are seeing increased participation, and chain partners are collaborating more efficiently. With new features and integrations, Hometwin is quickly becoming the standard for the digital housing file.
How does it work?
1. Residents receive a Hometwin account
Offered through a municipality, bank or company (sponsorship model).
2. Data is automatically bundled
Public sources (BAG, WOZ, energy label), enriched by residents.
3. Smart insights & actions
Overview of subsidies, maintenance and sustainability options.
4. Easy collaboration
Selectively share data with consultants, contractors or financiers.
5. Peace of mind
Residents have control and organizations see more results.
Practical experience

Rabobank
Tailor-made energy advice for making your home more sustainable, including an up-to-date energy label. Rabobank helps mortgage customers become more sustainable. Does an energy advice indicate that the home could benefit from additional insulation? Then Rabobank offers an insulation budget of up to €500 if you insulate your house with (one of) the insulation measures included in the advice report.
Discover these other solutions
Ready to activate residents?
Accelerate sustainability in your municipality or organization with the housing file. Independent, accessible, and proven effective.
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Call: +3110 – 899 55 10
Why Sobolt
- Smart, scalable and safe green tools
- AI-driven insights & personal support
- Measurable impact on sustainability and business operations
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