Hi Mike @Mike Lamb !
Thank you kindly! I have located the offending objects and have deleted them so it fits to just the actual drawing now! 🙂
However, I'm still "looking through" objects though and they are "disappearing" as I am moving around. The only thing that really stays stationery/stable are the plants from all angles. In fact now I'm able to look through on all sides of the model now and not just the right side. It's almost as if the garden beds and decking are /become translucent as I move around the model?
Specifically, all objects (bar plants which is normal) can be seen when I render in Top view then "disappear" when I go orthogonal and rotate around the model. All classes are turned on (except the dimensions & section lines). I can physically select the fire pit and other objects. The steppers, side stairs, 3 pots, the dining table, barstools, the oven and water feature can be seen, but only very slightly, and from particular angles. The fire pit is 100% "invisible". Also, the pots almost look like they are "chopped" internally due to the graphics.
Hopefully you're able to help. I must be not doing something else that's not right in this model!! I've uploaded the updated file so you can see what I mean.