Open sesame!

The faint red lines are where the three new openings in the walls will be...
These are the reinforced lintels which 'should' be strong enough to support the upper floors...
Pneumatic drill in action!
The new lintels are cemented in and left to dry for one week...
After marking out with an angle grinder we can begin to knock away bricks...
It's already a lot lighter...

Finishing off...