Sdelio methodology: sources, prices and limitations

These are rules for market data and planned estimates. They do not mean all sources are already connected. Current layer states are listed on the launch page.

Sources and usage rights

Open official publications: regional cadastral assessment materials, Rosreestr open datasets at cadastral quarter level, Rosstat, the Central Bank and public DOM.RF materials. Before connecting each dataset, we check reuse terms, period and fields; public viewing alone does not grant bulk collection rights.

Developer and supplier feeds are used only under a licence or contract. Storing history, displaying archived prices, derived data and API redistribution require the corresponding rights. Third-party text and photos are not published without written rights. Parcel geometry requires a separate connection with agreed rights.

User data is used for their cabinet and on their instructions. Users supply their own documents; extracts are not resold. Other uses require separate revocable consent with a purpose. Seller phone numbers and names are not collected.

Every material number carries a source, date, method and confidence. Manual and stale data is marked; missing data is not replaced with zero.

Five kinds of price we keep separate

Asking price

The amount in a listing on the observation date. It is the seller’s expectation, rather than confirmation of a deal.

Developer price

The lot price in a developer feed with a date and terms. Discounts, instalments and fit-out can change the meaning of a comparison.

Registered deal at quarter level

An observation from an official dataset for a cadastral quarter. It is not the price of an individual flat or evidence that the listed object was sold.

Cadastral value

Value from an official assessment with its date and version. It is not the current market price.

Model estimate

A calculated range based on available characteristics and observations, with stated confidence. This is a separate kind of value; public estimates are still in development.

Removed from the market is not sold

A listing may disappear because of a pause, a change of agent or republication. Removal is recorded as an observation; it does not confirm a deal or its price.

What the model does not see

Actual condition, unregistered improvements, legal defects and the interior may be unknown. Missing information about these properties does not mean the object is in order. A decision requires independent checks and suitable specialists.

When an estimate is not shown

We do not show an estimate when confidence is low. Too few comparable observations, stale sources or ambiguous object identity are reasons to show a data gap instead of a number.

Accuracy before public estimates launch

Before publishing estimates, we commit to publishing accuracy separately by object class: evaluation period, sample size and composition, error metrics and limitations. Until that evaluation exists, we do not claim accuracy figures or public estimates.

How to report an error

In closed beta, contact the operator through the agreed pilot channel: include the object link or identifier, field, observation date and source for the correction. Do not send family documents or personal data through public forms. There is no public correction form yet.