Revenue management
HelloData.ai
HelloData is a multifamily market analysis platform. It builds rent comparables, market surveys, and pricing recommendations from data its crawlers collect daily from property websites and public datasets, replacing phone surveys and manual website audits.
A user enters a property name or address, or draws a custom survey region, and the platform selects statistically similar comps and returns unit-level rents, concessions, and amenities. Surveys can be scheduled to email updates to a team, and the same data feeds development feasibility work, expense benchmarking, broker reports, and weekly comp leasing activity. Rent rolls can be uploaded for formatting, and the underlying data is also sold through APIs for other systems to consume.
HelloData was founded in 2023 and acquired by Grace Hill in April 2025. The company publishes a Dover, Delaware address, bills API usage at $0.10 per call, and states that its unit-level rents match actual rent rolls 97% of the time and that its expense models underwrite NOI with under 10% median error. Computer vision is used to classify finish quality and more than 200 amenities.
The site quotes two different adoption figures on its own pages, 25,000+ and 30,000+ multifamily professionals, so treat those loosely. Coverage depends on how many property websites exist in a given submarket, which is worth testing on a known market before relying on the comp set.
Best for
Multifamily owners, managers, developers, and brokers who need unit-level rent comps and concession history refreshed daily instead of commissioning phone surveys, and teams that want the same data through an API.
What they do
- Automated multifamily market surveys
- Unit-level rent, concession, and amenity data
- Comp selection by property name or address
- Weekly comp leasing activity tracking
- Expense benchmarking and NOI underwriting
- Development feasibility analysis
- Pipeline and demographic data
- Market data APIs and bulk exports
- Rent roll formatting and upload
Details
| Attribute | Value |
|---|---|
| Ownership | Subsidiary |
| How they charge | API usage is billed at $0.10 per call; interface plan rates are quoted rather than listed. |
What stands out
- Founded in 2023 and acquired by Grace Hill in April 2025.
- Data comes from daily crawls of hundreds of thousands of property websites, covering 2.6 million unique properties.
- The company states its unit-level rents match actual rent rolls 97% of the time.
- Expense models are said to underwrite NOI with under 10% median error.
- Computer vision classifies finish quality and more than 200 distinct amenities.