Thank you, so I can stick to my "straight line" measuring and not worry about the slope then... assume that even if the slope dropped a meter and the total height at the back of the extension was then 5m from top to bottom it would still be classed as the 4m measured from the front height?
My...
Hi,
I'm planning to build a 3x3 extension to the rear of my detached property, looking directly at the house from the rear the Eaves are 2350mm and the Height 3350mm from the "ground level" which is currently a block paved patio, however, along the side of the property the ground steps down and...