Back-Corner Home Addition Built From the Ground Up

A lot of homeowners want more space but don't want to move. This back-corner addition is a good example of what's possible when you approach it the right way - starting with a solid foundation and working through every layer until it looks like it was always part of the house.

We started from scratch on this one. Block foundation walls, pressure-treated sill plates, floor joists packed with insulation before the subfloor even went down. That kind of attention early in the process is what keeps a finished addition from feeling drafty or disconnected from the rest of the home. We used Drymax high-performance OSB for the subfloor and ZIP System sheathing on the roof deck - both are serious upgrades from standard materials and make a real difference in long-term moisture resistance.

Once the framing was up, we got into the details. The wall framing tied directly into the existing structure, and the roof was built to match the existing roofline without looking patched on. Tyvek wrap on the exterior walls, new siding, and Jeld-Wen windows rounded out the envelope. Interior divider walls were framed in to give the homeowner usable, defined space rather than one open room.

The custom octagonal window on the side wall was one of those small things that makes a big difference. It breaks up what would have been a plain siding face and gives the addition its own character - without clashing with the rest of the house. That's the kind of detail we think about when we're planning a remodel or addition. Function matters, but so does how it looks when it's done.

This is a full-scope project - framing, structural work, roofing, siding, windows, insulation, and interior walls. If you're thinking about adding space to your home and want it done right from the foundation up, this is the kind of work we do.