The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
A target, per the source: the tower "will begin construction in 2028 for a completion in 2033," after receiving "full planning consent from the City of London[5] Corporation in December 2025."
Year inferred from page image path (2026/06); also cited as ~£1bn since 2016.[1]
Construction Enquirer confirms construction on One London (formerly 1 Undershaft) is "set to start in 2028" with completion in 2033, matching the pin's stored 2033 target exactly, and notes full planning consent was granted in December 2025.
Opened primary project source for sourced buildout metrics and project timeline; researched 2026-10-29.[1]
The City of London Corporation's own news release, dated 1 December 2025, announces approval of the Square Mile's tallest tower, consistent with the pin's stored 2033 completion target, though the page itself could not be fetched to quote directly.
Something missing or wrong? Say it in your own words: a link that backs this pin up, a different start or end date and why, or a fact it lacks or gets wrong. The AI checks it against this pin's sources, searches for better ones, and adds any page that backs you up. The pin's own sources still count most. A picture that shows something else, or shows it badly, is looked at too, and moved down or replaced.
“practical completion targeted for 2033”
“2033”