How these records are built, and what they are not

The unit is the building

We hold one page per physical building — not per listing, not per apartment, not per operator. A building that is listed once by its operator and forty times as individual flats on a platform is one record here. A building that changes its name or its operator keeps the same record.

Where facts come from

Three kinds of source. An operator's own website. A third party that lists the building — an agent, an intermediary or a booking platform. And the operator directly, where they have supplied or confirmed something.

Every fact names its source and the date it was last checked, and each is shown on the record beside the fact itself. Where a fact came from a third party rather than the operator, the source says so. Nothing is aggregated into an unattributed whole.

Four rules, applied without exception

Every fact is cited. If it cannot be attributed to a source on a date, it is not published.

Nothing is guessed. A field the sources do not state is recorded as not published. It is never estimated from comparable buildings, inferred from a photograph, or filled in from what is probably true.

Disagreements are shown, not resolved. Where two sources conflict, both appear with their own citations and the record does not pick a winner. Choosing silently would hide the one thing a reader most needs to know.

Prices are never extrapolated. A nightly rate multiplied by thirty is not a monthly rate, and a weekly rate multiplied by four is not either. Where no monthly figure is published, the record says so.

What each state on a page means

A stated value — a source says this, on the date shown. Not published — no source we hold states it. Insufficient data — the source material touches on it but not closely enough to publish a figure; this is what a nightly-only rate produces in a monthly price band. Disputed — sources conflict, and all of them are shown.

What we do not do

It takes no bookings, holds no payment and is not an agency. It does not publish confidential negotiated corporate rates; only prices a source has published openly. It does not reproduce photographs or descriptive copy from any source — facts only. It records information about buildings and businesses, not about people.

Corrections, and objections

Every record carries a link to claim the building and a link to report an error. Both reach a person, and whoever submits one receives an acknowledgement. Where a correction is accepted, the record changes and shows the new source.

An operator who does not want their building displayed does not have to argue the point. On request, a record is reduced to identity alone — name, address, operator and unit types — with a note that limited display was requested. No adjudication, no conditions.

What we do not yet know

It holds 4 buildings, in central London. That is a beginning, not a survey, and no claim of coverage is made or implied.

Two limitations are structural rather than temporary, and they will show on almost every record. In September 2026 we examined what fourteen London serviced apartment operators publish. None published a monthly rate. One published weekly rates, one nightly, and twelve published none at all. Six of the fourteen named a building and gave a usable street address; the rest published areas, or individual flats, or an office address. Unit counts were stated by five.

That is the material this is built from. It is why so many fields read "not published", and why the monthly price band — the figure this category most needs — is frequently absent. The alternative would be to estimate it, and an estimate presented as a fact is the one failure this record cannot survive.

Changes to this document

Version 1, 2 September 2026 — first published. Changes will be listed here with their dates rather than made silently.