What the Index measures
Gross yield uses price and annual rent. Net yield goes further: service charges, management, vacancy and acquisition costs are deducted or added to the cost basis. The result is a planning number, not a projected return.
Release state
Q3 2026 data verification is in progress. The first release requires at least 20 buildings in each of two communities, 12 months of transaction and rent history, and a visible source tier on every row.
Why no headline ranking yet
The transaction and Ejari layers are accessible. Building-level service charges are not available to a brokerage by API. Amberstone is compiling the missing layer building by building and will not fill coverage gaps with estimates.
Every number carries provenance
Mollak-verified
Approved building budget obtained and matched to the canonical building record.
HighestOA-confirmed
Confirmed directly by the building’s owners-association management company.
HighOwner-supplied
Provided by an owner and checked for year, area basis and inclusions.
IndicativeInsufficient data
No number is published. The gap remains visible rather than estimated.
NoneUse your own assumptions now
Until the dataset is released, the calculator lets you model a property with building-specific inputs you already hold.
Open calculator ↗Open methodology
See every input.
The source hierarchy, formula, matching method and known limitations are part of the product—not a footnote.
Read the methodology ↗