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Case study · Residential renovation

1,250 square feetnobody was using.

An unfinished basement turned into the most-used floor of the house — family room, bar, three-piece bathroom and a guest room, finished in seven weeks.

LocationWhitby, Ontario
Scope1,250 sq ft
Duration7 weeks
Completed2025

What the owners were working with.

The basement had been storage since the family moved in — bare concrete, exposed joists, one ceiling fixture and two small windows at grade. With three kids and a home office upstairs, the main floor had run out of room.

They wanted a second living floor: somewhere the kids could have friends over, a bar for hosting, a full bathroom so guests weren’t sent upstairs, and a spare room. The brief was straightforward. The constraints were not.

Headroom was the problem. A main duct run and a steel beam crossed the ceiling at the worst possible height, and the bathroom needed drainage cut into the slab. Get either wrong and you end up with a basement that always feels like a basement.

Same room, seven weeks apart

From framing to finished.

Basement at drywall stage, bare concrete floor and taped ceiling
Before Drywall stage · week 4
The same basement finished, with plank flooring, pot lights and a stone fireplace
After Handover · week 7

How it came together

Four stages, seven weeks.

Basement framing with batt insulation and vapour barrier against the foundation walls
01 — Weeks 1–2

Framing, insulation and the wet work

Walls framed off the foundation, insulated and sealed behind a continuous vapour barrier — the part nobody sees and every basement lives or dies by. The bathroom drain was cut into the slab and tied into the existing stack before anything closed up.

  • Interior walls framed and squared to the existing beam line
  • Batt insulation with a continuous poly vapour barrier
  • Slab cut, bathroom drainage run and inspected
  • Electrical and HVAC rough-in coordinated before drywall
Drywall hung and taped, with bulkheads boxing in the ductwork
02 — Weeks 3–4

Drywall and the headroom problem

Rather than drop the whole ceiling to clear the duct run, we boxed it into a bulkhead along one side and held full height everywhere else. The result reads as a design decision instead of a compromise, and the room keeps its ceiling.

  • Ductwork and beam boxed into a single continuous bulkhead
  • Full ceiling height retained across the main living area
  • Board hung, taped and sanded ready for primer
Primed basement walls with recessed lighting roughed in
03 — Week 5

Priming, and solving the light

Two small windows at grade is all the daylight a basement gets, so the lighting had to do the work. We laid out more than forty recessed fixtures on separate circuits, so the room can be bright for the kids in the afternoon and dim for a film at night.

  • 40+ recessed fixtures zoned across separate dimmable circuits
  • Wall sconces flanking the fireplace wall
  • Walls primed and finished in a warm light grey
Finished basement with bar seating, plank flooring and the fireplace beyond
04 — Weeks 6–7

Finishes and handover

Plank flooring over the full footprint, a stacked-stone fireplace wall with a linear insert, the bar built in along the stair wall, and the three-piece bathroom tiled out. We cleared the deficiency list before the family moved anything back in.

  • Wide-plank flooring throughout, trim and doors hung
  • Stacked-stone fireplace wall with linear electric insert
  • Built-in bar with stone counter at the stair wall
  • Walkthrough, deficiency list cleared, warranty handed over

Details

Where the budget actually went.

Stacked-stone fireplace wall with a linear electric insert and flanking sconces
Stacked-stone fireplace wall
Three-piece basement bathroom with large-format tile and a black hex shower floor
Three-piece bathroom, curbless shower
The finished basement living area looking toward the fireplace
Main living area at handover

Thinking about your own

Got a basement you’re only storing things in?

Tell us the house, the headroom and what you want down there. We’ll tell you what’s possible and what it costs.