| Mansion House | |
|---|---|
 Mansion House in 2024 | |
 | |
| General information | |
| Address |
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| Coordinates | 36°25′49.70″S 174°49′7.27″E / 36.4304722°S 174.8186861°E |
| Completed | 1845 |
| Renovated | 1862–67, 1977 |
| Design and construction | |
| Architect(s) | Frederick Thatcher |
| Designated | 23 June 1983 |
| Reference no. | 8 |
Mansion House on Kawau Island, New Zealand, is a house that was owned by Sir George Grey from 1862 to 1888. Built in 1845 as the house for the manager of a copper mine on the island, it was extended significantly by Grey during his ownership. Mansion House is a heritage listed building. It is open to the public as part of the Kawau Island Historic Reserve administered by the Department of Conservation.