A Victorian-era coach house is free to anyone willing to cart it away from its current location in downtown Toronto.

"Built in 1889, this special heritage building is yours if you can move it," Toronto councillor Kristyn Wong-Tam announced on Twitter Tuesday.

Ms. Wong-Tam, councillor for Ward 27, says the L-shaped coach house needs to be moved to make way for an addition to Casey House. Construction is set to begin in the fall on the renovation and expansion of the specialty hospital for people with HIV/AIDS.

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Ms. Wong-Tam says the coach house at 119 Isabella will be demolished if no one claims it before construction begins on the new facility.

City Council has approved the expansion of the current Casey House, which occupies a grand Jarvis street mansion known as the Grey Lady.

At one time, the red brick coach house at the rear sheltered carriages belonging to the circa-1875 mansion. More recently the coach house has provided offices for the Casey House Foundation.

Ms. Wong-Tam received a flurry of calls from media yesterday after posting the offer on Twitter.

"It started as one simple tweet."

She invited interested parties to contact her office, where staff will make sure that anyone willing to attempt the move knows what they're getting themselves into.

Ms. Wong-Tam warns the move will be complicated and costly – possibly running into hundreds of thousands of dollars. It may also require splitting the building into two or three sections.

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"We know these things can be moved. We have certainly seen developers do it," she says, pointing to the James Cooper mansion on Sherbourne Street and the heritage house at 9-21 Grenville St. Both were hoisted and moved a few yards to make way for condo towers.