Queue the upgrades you plan — City Hall and all its prerequisites — and see the resources, items, build time after your buffs and alliance help, and the power you gain.
Costs as published by the community wiki; most of them are rounded there (3.5K, 1.4M). “unknown” means no reliable value exists yet and it is left out of totals. “≈” marks a value the wiki itself calls player-derived (most level 25 build times) or one that another public database lists differently.
Community data, checked on 2026-09-23: City Hall (2026-01-04) · Wall (2023-12-02) · Academy (2026-01-04) · Barracks (2019-04-28) · Archery Range (2019-02-15) · Stable (2026-01-04) · Siege Workshop (2026-01-05) · Hospital (2022-09-14) · Storehouse (2022-09-14) · Castle (2021-06-23) · Farm (2021-08-28) · Lumber Mill (2019-02-20) · Quarry (2026-01-04) · Goldmine (2019-02-20) · Scout Camp (2024-11-07) · Trading Post (2026-08-11) · Watchtower (2024-09-07) · Alliance Center (2019-02-06) — Rise of Kingdoms Wiki (fandom), CC BY-SA.