solver

Here is one way. May not be the "correct" way.

Note the change in the basement wall definition.

After drawing your handrail, add a shelf, slab or soffit on top. use the same technique to add the 1x1.

The Knowledge Base is full of helpful information, including an article on aligning walls. 

Since your basement wall is not a standard wall type, posting a small plan with that wall included would make it easier for us to experiment.

We could be far more helpful if you would post the plan.

There are so many variables and without the plan, we are often just guessing.

A bit frustrating and time consuming for us and for you.

Follow the instructions in post 15. Briefly, draw wall, set to length, draw next wall, set to length etc.

Drawing each new wall using the same wall type handle from the previous wall. 

Yes, I suggested Same Wall Type back in post 15. This really should be the default setting.

Alan -- Check out that post.

And why are you drawing basement walls? Typically, the basement walls are generated from the first floor walls automatically when you build the foundation.

Reflect About is handy for many things.

Here, I drew the top left bay (so I could draw clockwise), then using Copy and Reflect About, copied it to the other corners of the structure. 

Doable with a doorway and pass-through.

Just drag the side of the pass-through into the doorway a bit to eliminate the framing.

Not sure what you are referring to when you say "standard foundation wall".

You may set defaults for walls for each plan, so when you draw an exterior wall, for example, you always get the default wall you set.

I stil don't understand the problem you are having. If you are drawing an as built, do you have pictures of the house? Could you post a hand drawn image of the plan?

"The problem in drawing counter clockwise is that I end up with a wall that connects to the existing building that is not what I need."

What do you need? 

I try to draw walls clockwise. 

Draw 1, then 2 setting it to length, then 3, set to length etc.

Having Same Wall Type Handle set helps me.

That's what I needed.

Suggest using a slab or custom counter top instead of a soffit for the hearth, as I believe a soffit automatically has any trim wrapped around it.

Once I substituted a slab for the soffit, the baseboard was still wrong. I deleted the closet shelf (mantle), then put it back using Ctrl+Z. The base changed to be correct.

Looks like a bug.

I was suggesting you post the plan file, not an image of the plan. Keeps us from having to guess about what you have.

Looks like you have walls around the fireplace?

Posting the plan would be the best way for us to help. You may use Edit>Edit Area to copy just this room to a new plan if you wish.

What is not working for you? Could you post an image of what your roof looks like?

Images of what you are seeing will help us help you.

@Alan -- Like Mick, that is an auto generated roof in my image.

I did notice some odd white diamond shaped spaces in your walls -- maybe these are the cause of your issues?

@Mick -- I keep the ridge an off color to make it easier to see, for me, and others when I post an image.

Like this?

Searching the forum and knowledge base are good places to start.

We need to know your title (Suite, Pro etc) and version (10,2015 etc).

Could you upload a picture , hand drawing etc of what you want to do?

Windows or Mac? Which title -- Suite, Pro etc?

On Windows, you should have a desktop icon and be able to see the installation (see image).

Not sure what you are asking, Keith.

Without understanding what you are starting with, and where you are wanting to go, helping is difficult.

As Mick suggested, setting angle snaps to your specific degrees should help, and once you get a wall or two in place, you can use the Make Parallel tool.

Angled lines will always look rough on screen -- not sure how they will print.

See image

Is this what you are wanting?

Also, let us know what title (Suite, Pro etc) and version (10, 2015 etc) you are using.

You control the roof with settings made to the rooms and walls below. 

What "problems" are being caused by the 3rd floor roof?

Why do you need to see the wall?

You may turn off the stair layer so stairs do not show on the plan -- at least in Pro.

A similar question was discussed a few weeks ago. A search should find the thread.

What Title (Suite, Pro etc) and version (10, 2015 etc) do you have?