Methodology
How these records are built, and what they are not
Version 1 · 2 September 2026. This document is public and versioned because a record is only worth as much as the method behind it.
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, and a booking agent is not one of them. An operator's own public website. Open government data — Companies House, the Planning Data Platform, and Ordnance Survey and ONS address reference. And the operator directly, where they have supplied or confirmed something.
Agents, intermediaries and booking platforms were struck as sources on 2 September 2026 and nothing is collected from them. One legacy record, collected before that day and never published, still carries values taken from an agent's listing. Those values have been removed from it rather than left in place.
Every fact names its source and the date it was last checked, and each is shown on the record beside the fact itself. 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. 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 the page is removed — within one working day, no reason asked, no adjudication and no conditions. We confirm by email when it is done.
What we do not yet know
It holds 0 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, and it is why so many fields read "not published". What we publish about price is what the operator published — the figure, and the period they stated it for. A nightly rate is shown as a nightly rate. We never convert one period into another and we never estimate: there is no monthly figure derived from a nightly one, because a month is not thirty nights 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.
Version 2, 22 September 2026 — corrected after a legal review. Booking agents are named as a struck source rather than a live one; withdrawal is described as removal of the page, matching operator terms clause 5.1, where it previously described reducing a record to identity alone; and the monthly price band is gone, because it is no longer a product this site is building towards.