Removal of fireplace

[Rama k p veerapaneni]

I live in 2bed Maisonette on 1st floor and we have planning approved for Loft conversion (conservation area). We have an unused gas fireplace and i want to remove our portion of chimney breast which is located in the middle of the living room on party wall without touching downstairs neighbours chimney flue. The downstairs landlord have confirmed through email that their’s is open fronted gas fireplace which vents through chimney stack and currently in use. The whole chimney breast in our living room is 1.8mx0.60m

My questions are on how do i find out the correct flue for our fireplace? and how do i determine how much chimney breast should be removed? Is it possible to remove just our part of fireplace in living room without impacting downstairs chimney flue? Can this also be done in loft to remove our part and leave theirs as this will give half an extra space in loft? If above is possible by having structural engineer involved, can the downstairs landlord object to this work not to be done?
Many thanks in advance.

 

[ree]

OP,
If you have a chimney breast in your living room you usually have a fireplace - "your flue" is, so to speak, part of the fireplace. However, you say the chimney breast is 600mm wide - thats very narrow for two flues.
What you seem to be proposing is not a DIY job - fumes from a gas fire can kill you.
You dont need a structural engineer.
Perhaps you should call in a GasSafe person to have a look at your proposal?

 

[Rama k p veerapaneni]

Whole chimney breast width is 1.8m and depth is 600mm. I can confirm our fireplace is boarded but downstairs fireplace is in use. I don’t want to do it as diy job about seeking advice if out fireplace can be removed along with flue without disrupting downstairs flue which is passing through our chimney breast?

 

[ree]

OP,
Now I understand more about what's existing & what you are proposing.
The answer is yes. Yes, the actual building work involved is straightforward.
The other issues involved might be far from straightforward.