Lilburn, Historical building in Ellicott City, Maryland, US.

Lilburn, also called Balderstones Mansion or Hazeldene, is a Gothic Revival house built in 1857 on College Avenue for Baltimore foundry owner Henry Richard Hazlehurst. It stands on land once part of the 2,500-acre Valley of Owen grant. The house has a bell tower and a solarium; a 1923 fire destroyed the front parlor and interior.

Lilburn was built in 1857 on College Avenue for Henry Richard Hazlehurst, owner of a Baltimore foundry, on land that was once part of a 2,500-acre grant called Valley of Owen. The Gothic Revival mansion originally stood on a 12-acre site, later reduced to 8 acres after its guesthouse and carport outbuildings were demolished. A 1923 fire destroyed the front parlor and the interior.

The house carries three names: Lilburn Mansion, Balderstones Mansion and Hazeldene. Local storytellers have made it a subject of haunted-house tales, which is how many residents know it today. The bell tower and solarium are the features visitors single out.

Lilburn stands on College Avenue in Ellicott City, on a reduced 8-acre parcel of the former Valley of Owen grant; the guesthouse and carport outbuildings are gone, so the mansion is seen from the street. The 1923 fire left the front parlor and interior rebuilt, so the exterior, bell tower and solarium are what remain to observe.

The mansion's 12-acre grounds were later reduced to 8 acres, and its guesthouse and carport outbuildings were demolished. The property began as part of a 2,500-acre land grant called Valley of Owen. In later years, haunted house storytellers popularized the house.