First of all, I'm not a landscaping pro or any type of expert, just a homeowner who likes maps and plans. So I'm wondering about the actual usable amount of space in your front yard. I see a distance of 24'6" (maybe 24'8"?) from the front of the lot to the corner of the window on the right. Is the front property line the location of the curb? Will there be a sidewalk along the street in front of the house? Will it be right along the street, or will there be a parking strip (grass area) between the street and sidewalk? One of the lines in the front yard is labelled "ACHD easement." That's your county's Highway Division. It's 8' from the front property line, so it's 16'6" from the front of the house. My county doesn't allow trees -- or even tallish shrubs -- in the easement, so ask before you plant. The other line -- 12' from the property line, so only 12' 6" from the corner of the window on the right -- is the utility easement. That's another area where planting large shrubs or trees might be restricted, if power lines/pipes are underground. And hopefully they won't put any unsightly boxes in front of the house. But in any case, there may be significantly less space in front of the house where you're free to landscape as you wish, than you expect. Boise's snowfall averages only 19" per year, but you might want to ask the neighbors how much of the street snow will be dumped in your yard.

First off, it sounds like what you have is two inexpensive windows. The second (or inside) one was installed to soundproof the first. Question one: are they effective against the noise from the busy street? What you have is not so unique. You will probably need to remove both windows and install a new window (I would recommend a casement type) with sound glass in a "new construction" method. Why I asked about the effectiveness of your current windows against sound is that a window is only part of the entire sound equation but that is a completely new discussion.Good luck!

Can't say I have ever heard of or seen them. Where is the home? Aluminum is typically reserved for milder climates or more cooling degree dominated climates.

Thank you so much everyone. This is so helpful! The window would be on the wall nearest to the outdoor stairs down. It is facing south to the backyard and woods behind the house. But after seeing Mark Bishak’s comment and photos I don’t think I have any room for a window. It looks like there will be a lost of wasted space because of all the corners I have.