After the boxes are set in place, cables are pulled from subpanel all the way up to the boxes.  Time passed very quickly when you do the wiring.  I can easily spend 1 hour just on 1 circuit and a couple of boxes.

Switch Box
Wiring of the bathroom.
Wiring of the bedroom
Wiring in the ceiling

We finally had our basement floor poured.  The contractors started around 10:00 and didn't leave until 20:00 at night.  They did a great job.

Concrete truck backing up to the addition.
Newly poured concrete.
Smoothing the floor.  After hand smoothing, the contractors used a machine to do a finer job with 3 passes.

In order to save some money, I have decided to tackle the wiring job myself.  Of course, I need to apply a permit for it, which naturally costs me somewhat (close to $300).  The previous owner has left an unused 40A cable in the crawl space, of which I can extend it to the new addition.  I calculate that 40A would provide 9600W and should be sufficient for addition.  Hopefully my calculations would pass the inspection.

I borrowed a simplified code book (2009-2011) from the library and start the work.  I know it is going to take me a long time to do it,but it would be a great learning experience.

Switch Box
I use ceiling support to make sure the fan would not fall.
Electrical boxes, cables, switches, breakers, receptacles.
The subpanel in the basement of addition.
Together with the plumbing, the 40A cable connects to the main panel through the crawl space and study room in a 6" plastic pipe.
8/3 cable that carries 40A of power.

The plumber has now started to install the dry plumbing. 

Drainage holes for bathroom
Venting
Sump pump, which runs quite frequently in the addition.  Can't imagine how much groundwater we get everyday.
Sewage pump, which connects all the way back to the main sewage in existing home, across the crawl space.
Water coming out from sump pump.
Another view of the pipe for pumping out the ground water in basement.

The new windows and entrance door are now in place.  They are all energy efficient windows and door.  Of course, they cost more too.

Back side of the addition
Front side of the addition

After the trusses are built, the sheathing and shingles can then be attached.

Roof shingles with vents.
A look from below
Piles of shingles.

Now all the walls are in place, it is time to place the trusses.  From this point forward, our new addition has all the framing done.

A look from below
A look from above

Next the interior partition walls are built.

The contractors (just 2 of them) built the exterior walls in 1 day, very impressive.

Back of the addition.
This is the north side of addition.  The small opening will be the bathroom window.
This will be the south side of addition.

Next the contractors laid down the subfloors and floor joists.