Start at the top. Remove the chimney above the roofline by basically tossing the bricks to the ground and cleaning up.
Once below the roofline you’ll need to cover/repair the opening in the roof.
In the attic you’ll need an opening or exit typically at a gable end to toss the masonry through. Get as low as you can. Go to the upper floor and remove the wall around the chimney. remove all masonry and tios them out a window. Get it blow floor level and patch the floor and finish out the exposed walls etc to regain the floor space.
Removing an old chimney safely and reclaiming the floor space can be a challenging task, but it’s essential for home improvement. It’s crucial to consult with professionals or experts in the field to ensure the process is done correctly and safely. Additionally, you can find helpful information and tips on chimney removal by visiting relevant websites that offer resources on home renovation and construction. For example recently the Roofing Association removed my chimney and provide all necessary solutions. You can find all detailed info on their site!