Structural/Load Bearing wall?

[dismum90]

Does anyone know how to tell if a wall is structural/load bearing?
I've looked online to see who to tell but I'm just not 100% positive.

I'm wanting to knock through to the garage and looking at our floor plan the wall in question doesn't line up with any of the upstairs walls but it has got breeze blocks on the garage side of the wall which is making my question it. I don't know if that could be due to it being a semi exterior wall so potentially to help with insulation or is in fact due to it being load bearing?

Floor plan attached.

Will obviously get a builder/structural engineer out beforehand but just looking for some other opinions in the meantime!

Thanks

Generally, and i am no expert(!), If a wall runs parallel to the joists above then it is not likely to be load bearing (although still can be, so like you say important to get input from a structural engineer). If it runs at a 90 degree angle to the joists it'll probably be load bearing.

Floor boards are at 90 degree angles to joists, so look at the floor boards above

Looking at that plan, even if the wall isn't load bearing, it's going to be bracing, so still structural. Get an architect or engineer over.

I'd assume anything built of brick is structural in some sense, as a stud wall is a lot cheaper to put up and house builders are not renowned for their generosity.