
Basement Finishing in Boise Bench
A 900 sq ft unfinished basement converted into a family room, guest bedroom with egress window, full bathroom, and home office — doubling the home's usable living space.
Project Details
- Project Duration
- 7 weeks
- Square Footage
- 900 sq ft
- Budget Range
- $55,000–$68,000
- Rooms Created
- 4 rooms
- Ceiling Height
- 7 ft 6 in
- Bathroom
- Full bath w/ shower
The unfinished basement was used only for storage and laundry. With the family growing, the homeowners needed a guest bedroom, a dedicated home office, and a family room for the kids — without the cost and disruption of building an addition. The basement had low ceiling height (7'6"), required an egress window for the bedroom, and needed full HVAC extension.
We designed a layout that maximized every square foot within the existing footprint. An egress window well was excavated and installed for the bedroom to meet code. A full bathroom with shower was plumbed from existing basement drain lines. The HVAC system was extended with new supply and return ducts. Recessed LED lighting was used throughout to preserve ceiling height. Sound insulation was installed in the ceiling between the basement and main floor.
The family gained four new functional rooms in the same footprint — effectively doubling their usable space. The guest bedroom with full bath is used regularly for visiting family, the home office provides a quiet workspace, and the family room has become the kids' primary hangout area. The project added significant value to the home.

Finished basement family room with recessed lighting

Framing and electrical rough-in stage
Design & Permits
2 weeksLayout design, egress window planning, HVAC extension design, electrical plan, permits
Egress Window
3 daysExterior excavation, foundation cut, egress window well and window installation
Framing & HVAC
1.5 weeksWall framing, HVAC duct extension, bathroom plumbing rough-in
Electrical & Insulation
1 weekElectrical rough-in, recessed light layout, sound insulation in ceiling, wall insulation
Drywall & Finish
1.5 weeksDrywall hang, tape, mud, prime, paint, trim installation
Flooring, Bath & Final
1 weekLVP flooring, bathroom tile and fixtures, final electrical, punch list
“It is like we got a whole new floor of the house. The kids basically live down there now, the guest room gets used every month, and my office is finally quiet. Incredible value.”
Chris & Amanda
Boise Bench

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