Nairn Street Cottage, Historic house museum in Mount Cook, Wellington, New Zealand.

Nairn Street Cottage is a Georgian-style house in Mount Cook built in 1858, displaying the domestic furnishings and daily life of several generations. The house contains original items and fixtures across multiple rooms that document living conditions from the mid-1800s through the mid-1900s.

William Wallis built this cottage in 1858 after arriving from England with his wife Catherine following a long voyage across the sea. The building remained in family hands for many decades, reflecting the evolution of domestic life through different periods of New Zealand's past.

The cottage displays how family members lived across generations, from Catherine's nursery in the 1860s to Winifred's space in the 1970s. Each room reveals the changing habits and values of people during those eras.

Guided tours of the house and garden cover the Wallis family's history and world events across the 127 years they lived here; group tours and education visits can also be booked. The garden is open daily during daylight hours. The cottage is on Nairn Street in Mount Cook, and it closed temporarily in 2018 for refurnishing.

William Wallis chose the Nairn Street site only after viewing it, because a stream ran at the bottom of the town acre; he knew the value of a safe water supply after the 1855 Wairarapa earthquake tsunami swamped Wellington's water and typhoid killed several people. His original carpenter's tool chest, from his apprenticeship at The Crystal Palace in London, remains in the cottage collection.