Robert Mills House, also known as Ainsley Hall House, is a historic residence in Columbia, South Carolina, designed by architect Robert Mills. You can learn about its neoclassical design and history on a guided tour, or visit its gardens during public garden hours.
- Location: 1616 Blanding Street, Columbia, SC 29201
- Garden hours: Open Wednesday to Sunday; closed Monday and Tuesday
- Group tours: $15 per person per tour; reserve at least two weeks ahead
Why Robert Mills House matters
Robert Mills House is nationally significant for its architecture and preservation history. Built in 1823 for Columbia merchant Ainsley Hall, the house was designed by Robert Mills, a South Carolina architect and engineer who also designed the Washington Monument and served as a federal architect under seven presidents.
The house is listed on the National Register, with its design, restoration, period and architect cited as reasons for its importance. Local preservation advocates, including Mabel Payne, helped save it from demolition in the 1960s.
House architecture and historic context
The house’s neoclassical design is central to its story. Historic Columbia’s guided tour covers both the architecture and the home’s history, placing the building in the context of its original owner and designer.
For a broader look at the city’s collections and cultural stops, browse this guide to museums in Columbia, SC.
How do tours and garden visits work?
House and garden tours start at the Welcome Center at Robert Mills House, at 1616 Blanding Street. Group tours are led by trained guides; the group-tour rate is $15 per person per tour, with booking required at least two weeks in advance and availability subject to guide schedules.
A garden visit for 15 people or fewer, lasting no more than 45 minutes, is complimentary. Complete Historic Columbia’s Garden Visit Notification Form before going. Fees apply to larger groups, longer visits, visits outside public hours and photography in indoor spaces.
Opening hours
- Wednesday to Saturday: 12 PM–1 PM
- Sunday: 3 PM–4 PM
- Monday and Tuesday: closed
Last checked November 2026. Hours can change on holidays and for special events.
Hours and booking arrangements can change, so check the official site before you go.
How do you get to Robert Mills House?
The house is at 1616 Blanding Street in Columbia. From Budget Inn Express, it is about a 7-minute drive.
What else can you see on Blanding Street?
Hampton-Preston Mansion is directly across the street at 1615 Blanding Street, making the two historic houses straightforward to pair in one visit. The gardens at both sites share the same public hours: 10 a.m.–4 p.m. Monday–Saturday and 1–4 p.m. Sunday.
For another outdoor stop in the city, the Finlay Park guide covers the park’s visitor details.
FAQs
What is Robert Mills House also called?
It is also known as Ainsley Hall House, after the Columbia merchant for whom it was built.
Who designed Robert Mills House?
Architect Robert Mills designed the house. He also designed the Washington Monument.
Do you need to book a group tour?
Yes. Group tours cost $15 per person per tour and must be booked at least two weeks in advance; availability depends on guide schedules.
Can you visit the gardens without a tour?
Garden visits of 15 people or fewer and 45 minutes or less are complimentary during public garden hours. Complete Historic Columbia’s Garden Visit Notification Form beforehand.