Turnbull House, Heritage building in Pipitea, New Zealand

Turnbull House is a three-storey brick building on Bowen Street in Wellington, designed by architect William Turnbull in a mix of Queen Anne and Scottish baronial styles. It was built to house Alexander Turnbull and his library, with three large library rooms for his books, maps and documents.

Turnbull House was built in 1915–1916 for Alexander Turnbull to hold his private library, with construction delayed by World War I. After his death in 1918, the government bought it in 1920 and opened the Alexander Turnbull Library there. The library remained until 1973, when its collection joined the National Library of New Zealand. The Department of Conservation restored the building in 1994.

The building's name comes from Alexander Turnbull, whose private library of books, maps and documents was opened to the public here in 1920 as the Alexander Turnbull Library. The library remained until 1973, when its collection was incorporated into the National Library of New Zealand. The architect William Turnbull shared the surname but was not related to the owner.

Turnbull House has been closed to the public since 2012, when it was assessed as an earthquake risk; no tours run. It stands on Bowen Street, across the road from The Beehive and hemmed in by Bowen House, the Treasury Building and Parliament House. A construction contract for seismic strengthening and weather-tightness work was signed in 2024, so expect scaffolding rather than access.

The architect William Turnbull shared Alexander Turnbull's surname but was not related to him. The building was closed in 2012 after Wellington City Council judged it at risk of collapse in an earthquake, and a construction contract for seismic strengthening and weather-tightness work was signed in 2024.