A few feet more
Bump-outs and sunrooms
A bigger kitchen without a bigger project, or a bright room off the back.
A bump-out is the smallest addition that still counts as one: a few feet that make a kitchen work, a breakfast nook or a bigger bath. A sunroom is a full room with lots of glass. Both need a permit, a footing or a floor cantilever and a roof that sheds water onto the old one.
What's in it
A footing or a cantilevered floor, whichever suits the house
Framing, windows, roof and flashing into the old wall
Wiring, ducts and plumbing run to the new space
Interior finishes to match the room it joins
Cleanup and site restoration
What it doesn't include
Left out unless the contract says otherwise
New cabinets and counters
A bump-out gives the space. Cabinets and counters are part of a kitchen job we price with you.
Heating and cooling upgrades
A small bump-out usually shares the existing system. A sunroom often needs its own.
Furniture and window treatments
Glass rooms need shades. We leave those to you.
What changes the cost
What moves the number
Small projects are decided by a few details.
Footing or cantilever
A cantilever from the floor joists is simpler, but only works for a shallow bump-out. A new footing goes deeper.
How much glass
Windows and doors are the largest line in a sunroom. Energy ratings and sizes change the cost a lot.
The roof
A shed roof off the old wall is simple. A hip or gable that matches the house takes more framing.
What moves inside
A sink, a range or a gas line to relocate costs more than an empty alcove.
How it goes
How a bump-out goes
- 01
Step 1: Open the wall
We protect the room, then open the exterior wall once the new floor and roof framing are ready to close it.
- 02
Step 2: Frame and close in
Floor, walls and roof go up and the opening is dried in the same day.
- 03
Step 3: Systems and insulation
Wiring, plumbing and ducts, then insulation, inspected before the drywall.
- 04
Step 4: Finishes
Drywall, trim, paint and flooring that meets the old floor at a clean line.
Permits and rules
Permits for small additions
A small addition is still an addition. It needs a permit, drawings and inspections, and a lot setback applies the same way it does to a big one.
Who does what
We: drawings, permit and inspections
You: sign the application and approve finishes
The city or county: reviews and inspects each stage
Examples
Sample work
Showing 3 of 3
Sample photos.
Questions
Bump-outs and sunrooms
How big can a bump-out be?
It depends on the floor framing and the lot setback. We measure and tell you what fits at the site visit.
Do I need a permit for a sunroom?
Yes. A sunroom is a room addition, with a foundation, a roof and a permit.
Will a sunroom be too hot in summer?
The glass choice, the roof and the shade decide that. We discuss the options with you before the windows are ordered.
Can the old heating and cooling serve it?
Sometimes for a small bump-out, rarely for a sunroom. We check before drawing.
A few feet make the difference
We'll measure the wall and tell you whether it's a bump-out, a full addition or neither.