Home Remodeling & Additions

Home Additions in Metro Detroit

A home addition is the biggest way to gain space without moving. We match Metro Detroit homeowners with vetted, licensed addition contractors who tie new square footage into your existing structure so it looks like it was always there.

Typical range: $150 to $400 per sq ft

  • Licensed & insured local pros
  • Permit-ready for home remodeling & additions work
  • Free, no-obligation quotes

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A home addition is really two projects in one: a new structure, and a seamless connection to the house you already have. The hard part isn’t framing the new space, it’s the tie-in. The new foundation has to meet the old one, the rooflines have to marry, and the siding, windows, and trim have to match closely enough that nobody can tell where the original house ends. Get that wrong and the addition reads as a bolt-on that drags down the whole home. The contractors in our network handle everything from a single room addition to a full second story, and they treat the connection to your existing structure as the main event, not an afterthought.

What’s possible on your property depends heavily on your lot. On the big lots in Bloomfield Hills and Oakland Township, there’s usually room to push out at ground level for a family room, primary suite, or in-law wing. On the tighter lots and setbacks common in Royal Oak and Ferndale, going up with a second-story addition or out with a modest bump-out is often the only route that clears zoning. We match you with a licensed, insured, permit-ready home addition contractor who knows how Metro Detroit zoning works and builds space that fits the house and the block it sits on.

What’s included

  • Design and structural drawings for the new footprint
  • Permit-ready plans plus zoning, setback, and variance handling
  • Foundation work sized to the addition (slab, crawlspace, or full basement)
  • Framing tied into the existing walls, floor, and roof structure
  • Roofline, siding, window, and trim matching to the original house
  • Full interior build-out: insulation, drywall, electrical, HVAC, and finishes
  • Final grading, cleanup, and walk-through

An addition lives or dies on the tie-in and the permit work, which is exactly where cut-rate builders cut corners. The contractors we match you with are licensed, pull the right permits, and carry insurance for structural work on your home.

How it works

Design & feasibility

A pro reviews your lot, setbacks, and goals, then produces drawings that show what the addition can be and where it can go.

Permits & zoning

Plans go to the city for building permits, and any setback or zoning variances are handled before a shovel hits the ground.

Foundation & framing

The new foundation is poured or built to match, then the addition is framed and tied structurally into the existing house.

Dry-in & tie-in

Roof, windows, and siding go on and are matched to the original, and the new space is connected to the home’s systems.

Interior finish & walk-through

Insulation, drywall, flooring, and trim finish the space, then you walk the completed addition before final sign-off.

Home Additions: common questions

How much does a home addition cost?
Most home additions in Metro Detroit run $150 to $400 per square foot, a wide range because so much depends on the type. A simple bump-out sits at the low end; a second-story addition, or one with a full foundation, a new bathroom, or a kitchen, lands much higher. Foundation, roof tie-in, and matching the existing house are the biggest cost drivers.
Do I need permits and a variance for an addition?
Yes, additions always require building permits, and many need zoning review for setbacks, lot coverage, or height. On tight lots in places like Royal Oak or Ferndale, a variance is sometimes needed to build where you want. The contractors we match you with handle the drawings, permits, and any variance requests as part of the job.
How long does a home addition take?
Plan on several months start to finish. Design and permitting alone often take one to three months in Metro Detroit before construction begins, and the build itself runs from about a month for a small bump-out to four to six months or more for a second story or large ground-floor addition.
Will the addition match the rest of my house?
That’s the whole goal, and it’s harder than it sounds. Matching aged siding, brick, rooflines, and window styles takes a pro who plans for it. A good addition contractor sources close matches and details the transition so the new space reads as original, not tacked on.

Get matched with a home additions pro

Get matched with a vetted, licensed Metro Detroit pro today. Free quotes, no obligation.