In-Law Suite Addition Cost in Fort Worth: What We Quote
An in-law suite addition in Fort Worth runs $110,000 to $190,000 for an attached room with a full bathroom. A kitchen moves it to our next tier.
An in-law suite built as an attached room with a full bathroom runs $110,000 to $190,000 with us. That is our room-plus-bathroom addition tier. A suite with a kitchen, or with more than one room besides the bathroom, is in our $190,000 to $300,000 and beyond tier. A garage turned into a suite is priced on the same tiers.
On this page
An in-law suite is a kind of room addition. The price depends on three things: the bathroom, the kitchen, and where the suite goes. This page gives our number for each plan.
- An attached room with a full bathroom: $110,000 to $190,000.
- A suite with a kitchen, or with more than one room besides the bathroom: $190,000 to $300,000 and beyond.
- One new room that uses a bathroom you already have: $60,000 to $110,000.
- A garage turned into a suite is priced on the same tiers.
- Permits are billed at cost and are not in the quote.
Four plans and where each one lands
We price every addition on three tiers. This table shows which tier each in-law plan falls in.
| The plan | Our price tier |
|---|---|
| One new room that uses a bathroom you already have | $60,000 to $110,000 (a single room with no plumbing) |
| An attached room with its own full bathroom | $110,000 to $190,000 |
| A suite with a kitchen, or with more than one room besides the bathroom | $190,000 to $300,000 and beyond |
| A garage turned into a suite | The same three tiers. The bathroom and the kitchen decide which one. |
$110,000 to $190,000: a room and a full bathroom
This is the plain version of an in-law suite. One new room is added to the house, with its own full bathroom.
The bathroom is what moves the job out of the first tier. A room with no plumbing is the first tier. A room with a bathroom is the second.
Here is what goes into the bathroom. Behind the tile we use Schluter waterproofing. Fixtures are Delta or Moen. Shower glass is frameless. It is the only kind we install.
If the suite is for a parent, ask about a curbless shower entry. Our guide to aging-in-place bathroom design covers it.
When a kitchen is part of the suite
A kitchen changes the tier. Our third tier covers additions with more than one room besides the bathroom, a second story, or a kitchen. It runs $190,000 to $300,000 and beyond.
A small kitchenette is a fair question, and we do not answer it with a guess. The number depends on what goes into it. We set it at the walk-through.
One thing to know about any kitchen we build. The price does not include appliances. You buy them and we install them.
A garage turned into a suite
We do garage conversions. They are priced on the same three tiers as a new addition. If the suite needs a bathroom, it is in the second tier. If it needs a kitchen, it is in the third.
Our garage conversion cost guide has the details.
If a new bathroom is all you need
Some families do not need new square footage. They need a bathroom that a parent can use safely. That is a much smaller job, and we price it on its own.
- A full guest or hall bathroom remodel runs $15,000 to $20,000. See the guest bathroom cost guide.
- A walk-in shower by itself, with the rest of the room untouched, runs $12,000 to $18,000. See the walk-in shower cost guide.
How you pay for a job this size
An in-law suite with a bathroom is over $100,000. This is the payment schedule for every job of that size.
- 50% at the start. This covers the demo, the lumber package and the window order.
- 10% every two weeks. The other half is paid in payments of 10% as the work moves.
- You hold the last 10%. You keep it until every scope is complete and you are satisfied.
Projects of this size typically run two to five months. On a job between $60,000 and $100,000 you pay 50% down, 30% after four weeks, and 20% at completion.
What is not in the number
- Permits. They are billed at cost. They are not in the quote. Licensed trades pull the permits for their scope.
- Appliances. You buy them. We install them.
- Changes after you sign. A change order is priced at cost plus 25%.
This page is about a suite that is attached to your house or built inside your garage. It does not price a separate building in the back yard.
If the plan starts to pull apart rooms you already have, that work is set at the walk-through and written into the scope. A remodel of the whole house is a different job, and our whole-house remodel cost guide has those numbers. For the addition tiers in full, read the room addition cost guide.
How to get your number
The real number comes from a free walk-through of the house and the lot. The quote we write from it is good for 30 days.
Our typical start is one to two weeks out, depending on our schedule. Our own in-house crew does the work.
Every job carries a written warranty with two terms: three years on everything we touch, and five years on our workmanship. Manufacturer warranties on materials pass through to you. To set a walk-through, call or text 817-210-7117.
Questions homeowners ask
How much does an in-law suite addition cost in Fort Worth?
With us, an attached room with a full bathroom runs $110,000 to $190,000. A suite with a kitchen, or with more than one room besides the bathroom, runs $190,000 to $300,000 and beyond.
Does a kitchenette change the price?
A suite with a kitchen is in our $190,000 to $300,000 and beyond tier. For a small kitchenette, we set the number at the walk-through, because it depends on what goes into it.
Can a garage become an in-law suite?
Yes. We do garage conversions, and they are priced on the same three tiers as a new addition.
How long does an in-law suite take to build?
Our projects over $100,000 typically run two to five months. The time depends on the scope.
Are permits in the price?
No. Permits are billed at cost and are not in the quote. Our guide to room addition permits in Fort Worth shows what the City says about additions.