Koa Ridge
City in Hawaii, United States

Koa Ridge is a town being developed by Castle & Cooke located near the center of the island of Oʻahu in City and County of Honolulu, Hawaiʻi, United States.
History
Koa Ridge sits on former plantation fields owned by Castle & Cooke, which began planning for its development in the late 1990s. It is a planned community south of Mililani Town and north of Waipio. It was originally planned to have Koa Ridge Makai on the west side of interstate H2 and Koa Ridge Mauka on the east side of interstate H2. However, through project opposition and delays, only Makai is being developed. It is situated about 9 miles (15 km) northwest of the center of Honolulu. The ground was broken for Koa Ridge on November 2, 2017. The first homeowners moved into Koa Ridge in November 2020.
Description
Koa Ridge is a town being developed by Castle & Cooke located near the center of the island of Oʻahu in City and County of Honolulu, Hawaiʻi, United States. It is planned to house approximately 3,500 units, a medical center, a community center, parks, an elementary school, and commercial facilities.
“Koa Ridge” enters the record as city in Hawaii, United States. Crown Archives preserves that source wording while asking what Ridge, City and Hawaii can confirm, complicate or overturn.
Why this record matters
“Koa Ridge” is worth following because a concise public description often conceals a longer documentary argument. Here, Ridge, City and Hawaii provides the most credible route into that argument.
Maps, plans, fabric surveys and administrative records can establish how the site’s name, extent and function changed over time. The source revision retrieved here is dated Apr 1, 2025. The linked authority identifier is Q111948327. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2017 and 2020.
Architectural summaries often privilege surviving fabric and can understate demolished phases, contested use or displaced communities. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
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Three-step research path
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Questions for further research
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This entry incorporates text from “Koa Ridge” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.