Suite inside the house
$40k–$85k
- Bedroom and sitting area
- Curbless shower with a bench
- Grab bars that look like towel bars
- Wider doors, lever handles
- Brighter lighting, night lights
- Non-slip flooring throughout
In-law suite construction · Licensed & insured
In-law suite construction with privacy and shared-home access in balance.
A private bedroom, a bathroom with no step into the shower and a place to sit and make coffee, a few steps from your kitchen. We build it inside the house or as an attached addition, planned around the person who will live there, in six weeks to six months.
Tell us who the suite is for and send a photo of the space you have in mind. A licensed supervisor replies within five minutes on business days.
- $40kInside the house
- 6–26 wksBuild time
- 4.9410 reviews
- 24hWritten estimate
How an in-law suite starts
We ask about the person first. The floor plan comes second.
A suite for a parent is planned around how that person moves, sleeps and spends the day. The supervisor asks a few questions about them, then about the space, and books a visit that works for everyone who is deciding.
- Questions about the person before the square footage
- Estimate sent to every family member you name
- Visit set when the parent can be there too, if they want
Hi, my dad is moving in with us after my mom passed. He is 81, still independent but the stairs in his house are too much. We have a den on the first floor.
Hi Jennifer, I am Anna, I plan in-law suites at ProBuild Remodeling. I am sorry about your mom. Could you send a photo of the den and the nearest bathroom, and tell me if your dad uses a cane or walker?
Photos sent. No walker, he just holds the railing. The bathroom next to the den only has a tub.
Thank you. The den looks big enough for a bedroom and sitting area, and the tub could become a curbless shower with a bench. Could I visit Saturday at 11? Your dad is welcome to join.
Saturday works, he will want to see it. Can you send the estimate to my brother too? We are splitting it.
Of course, send me his email and you will both get the same estimate on Tuesday, with each option priced so you can decide together.
What an in-law suite costs
In-law suites cost $40,000 to $280,000. Where it goes decides most of the price.
Prices assume mid-range finishes, a step-free route from the door to the bed and the shower, and work by a licensed contractor with permits. The suite with a kitchenette and private entry is what most families choose.
Suite with kitchenette
$85k–$150k
- Everything in the inside suite
- Private exterior entrance
- Kitchenette with sink and fridge
- Step-free ramp or zero-step entry
- Sound insulation between rooms
- Separate thermostat for the suite
Attached addition
$150k–$280k
- Foundation and new framed wing
- Bedroom, bath and living room
- Kitchenette or small kitchen
- Connecting door to the house
- Roof tied into the main house
- Plans, engineering and permits
Price an in-law suite in ten seconds
Pick where the suite goes, how big it is and the age of the house. The range changes as you choose, using the tiers our suite supervisors quote from.
A range, not a quote. Your written estimate comes after the visit and does not change once you approve it.
Typical range for your answers
Turn this range into a suite estimateWhere an in-law suite budget goes
The bathroom takes the largest single share. Safety details cost less than families fear.
Averages from recent suites with a kitchenette and private entry. The step-free shower and bathroom are the most expensive room. Grab bars, lever handles and lighting together are a small line.
Get my itemized suite estimate
Convert a room or build an addition
If a first-floor room is free, convert it. If not, an attached addition is the honest answer.
Converting a room you already have costs a third or less of an addition and is finished in weeks. An addition gives more space and privacy but takes months and a bigger permit. At the visit we look at both and write down which fits your house and your family.
| If this is true | We recommend |
|---|---|
| There is a spare room on the main floor near a bath | Convert a room |
| Every main-floor room is already used every day | Build an addition |
| The move needs to happen within three months | Convert a room |
| Your parent wants a separate entrance and a kitchen | Build an addition |
| The family budget is under $90,000 | Convert a room |
| Two parents need a bedroom and a living room | Build an addition |
How long an in-law suite takes
A suite inside the house takes six to ten weeks. We plan it around the move-in date.
Tell us when the move happens and we build the schedule backward from it. A suite with a kitchenette takes ten to fourteen weeks and an attached addition four to six months after permits.
Before work starts
Plan with the family
A visit with the family and, if they wish, the parent. Measurements, needs and a plan everyone signs.
First weeks
Open and rough-in
Dust walls go up, the room is opened, plumbing and wiring for the bath and kitchenette go in.
Middle weeks
Bath and entry
The curbless shower is built and waterproofed, doors widened and the private entrance framed.
Final week
Finish and move-in
Floors, lights, grab bars and paint, then a walkthrough with the family before move-in day.
Suites before and after
Three suites, each built for one person.
What your in-law suite is built with
Every safety detail is named in your estimate, and none of it looks like a clinic.
Products for safer rooms have become good-looking. We name the brands and models so the family can check them, and so the suite feels like a home rather than a care facility.
Curbless shower systems
A sloped floor with a linear drain from brands like Schluter or Wedi, so there is no curb to step over and water still drains away.
Designer grab bars
Grab bars from Moen or Kohler that double as towel bars and toilet paper holders, rated for 250 pounds and anchored to blocking.
Comfort-height toilets
Toilets about 17 to 19 inches high from Kohler or TOTO, easier to sit down on and stand up from than a standard toilet.
Slip-resistant flooring
Porcelain tile rated for wet traction in the bathroom and luxury vinyl plank in the bedroom, with no rugs to catch a foot.
Lever handles
Lever door handles and single-lever faucets that open with a push of the hand, easier than knobs for anyone with sore wrists.
Layered lighting
Motion-sensor night lights at floor level, bright ceiling lights and switches with lit rockers, so the way to the bathroom is clear at night.
Written into every contract
Six promises you can hold us to.
The approved price is the final price. Change orders only with your written approval.
A credit for every working day of delay we cause. Weather and inspections excepted, in writing.
Dust barriers, floor protection and a clean-up before we leave. Your home stays livable.
A text or email every working day with photos and tomorrow's plan, or the day is free.
Workmanship warranty in writing, transferable to the next owner, backed by a fixed address.
A small deposit, then you pay only for work that is already completed, inspected and photographed.
Who builds the suite
A small crew your parent will know by name, every day until move-in.
Many parents worry about strangers in the house. The same three people come every day, are background-checked and are introduced by name, with photos sent to the family before the first day.
Suite supervisor
Plans the suite with the family and sends daily updates.
Lead carpenter
Widens doors, builds the entry and sets every grab bar.
Tile and bath specialist
Builds the curbless shower and waterproofs the floor.
Recent in-law suites, with the real numbers
Three suites, three budgets, three move-in days kept.
Den to bedroom suite
- Final price
- $58,700
- Duration
- 8 weeks
- Location
- City, ST
Lower level with kitchenette
- Final price
- $118,400
- Duration
- 12 weeks
- Location
- City, ST
Attached one-bedroom wing
- Final price
- $214,600
- Duration
- 5 months
- Location
- City, ST
Your family is not average
Every family arranges this differently. Here is how your case changes the suite.
In-law suite estimates start from the three tiers above, then shift for the person moving in, the house and the family decision. Find the one closest to yours.
A parent still independent
Independent parents want privacy, their own coffee and their own door. A kitchenette, a private entrance and a separate thermostat protect that, while the step-free bath means the suite still works if needs change.
Plan a suite for an independent parentA walker or wheelchair
A wheelchair needs 36-inch doors, a 5-foot turning circle in the bathroom and a roll-in shower. We plan those clearances from the first drawing, which costs far less than widening doors and walls after the suite is finished.
Plan a wheelchair-ready suiteA move that cannot wait
After a fall or a hospital stay, the move is often weeks away. We start with a first-floor room, the bathroom and the entry first, and finish the rest after move-in without blocking the way to the bed and shower.
Price a suite on a short timelineSiblings sharing the cost
When several siblings share the cost, everyone needs the same numbers. We send one estimate to every email you give us, with options priced separately, and answer the same questions for each sibling in writing.
Send the estimate to my siblingsA careful budget
Converting an existing first-floor room, keeping the plumbing where it is and choosing a shower bench instead of a full remodel can keep a suite near $45,000. We show which savings keep it safe and which do not.
Get my budget in-law suite priceAn older house
Older houses have narrow doors, steps between rooms and bathrooms with small tubs. Those are the details we fix first. Your estimate lists what the house needs and what the EPA lead-safe rules add in painted areas.
Price a suite in my older houseBuying a house for everyone
If you are buying a home with a parent in mind, send us the listing. We tell you before you make an offer whether a suite fits, where it would go and roughly what it costs, so the purchase price makes sense.
Check a listing for an in-law suiteRental use later on
Some families plan to rent the suite once it is no longer needed. Where local rules allow, a private entry, a kitchenette and a separate thermostat make that possible, and we check the zoning before design.
Plan a suite I can rent laterWhat this service is
In-law suite construction, defined the way we build it.
In-law suite construction is the creation of a private living area for a parent or relative within or attached to the main house, usually a bedroom, a step-free bathroom, a sitting area and often a kitchenette and a separate entrance. ProBuild Remodeling builds it as a licensed general contractor, from family planning visit to final inspection.
The service covers converting existing rooms or building an attached addition, step-free bathrooms, wider doors, private entries, kitchenettes, lighting, heating and cooling, sound insulation and safety details such as grab bar blocking and interconnected alarms. It does not include detached backyard units or medical equipment, which are separate services or suppliers.
It is for families bringing a parent or relative home to live with them, and for adult children arranging it from near or far. It is not for families who need a fully separate rental home on the lot, which is a detached ADU, or for care that requires a licensed care facility.
In-law suite words on your estimate
- Curbless shower
- A shower with no step or curb at the entry. The floor slopes gently to a drain so water stays inside.
- Linear drain
- A long, narrow drain along one side of a shower that lets the floor slope in one direction, needed for curbless showers.
- Blocking
- Solid wood fastened between studs inside the wall, so grab bars and handrails can be anchored anywhere later.
- Clear width
- The open space through a doorway with the door open. About 32 inches works for walkers, 36 for wheelchairs.
- Turning circle
- A 5-foot open floor circle where a wheelchair can turn around. Planned in the bathroom and bedroom when needed.
- Zero-step entry
- An entrance with no step, using a gentle ramp or a raised path so a walker or wheelchair can roll straight in.
- Interconnected alarms
- Smoke and carbon monoxide alarms wired together so when one sounds, every alarm in the house sounds.
- Comfort height
- Toilets and counters set a few inches higher than standard, making it easier to sit, stand and reach.
In-law suite questions
Eight in-law suite questions families ask us most.
How much does an in-law suite cost?
Converting an existing first-floor room into a bedroom suite with a step-free bathroom costs about $40,000 to $85,000. Adding a kitchenette and private entry brings it to $85,000 to $150,000, and an attached addition runs $150,000 to $280,000.
What is the difference between an in-law suite and an ADU?
An in-law suite is part of the main house, inside it or attached with a connecting door, and usually shares utilities. An ADU is a complete, independent home, often detached, with its own utilities and address. Suites are simpler to permit.
How long does it take to build an in-law suite?
A suite inside the house takes six to ten weeks. Adding a kitchenette and private entry takes ten to fourteen weeks. An attached addition takes four to six months after permits, which usually take one to three months.
Can an in-law suite have its own kitchen?
Many towns allow a kitchenette with a sink, fridge and microwave inside a suite, while a full range can make it count as a second unit. We check your local rules and design the kitchen to fit them.
Does an in-law suite need its own entrance?
It does not have to, but most parents value one. A private entrance lets them come and go on their own schedule. We add a zero-step entry where the ground allows, so it stays easy to use for years.
What makes an in-law suite safe for an aging parent?
A step-free route from the door to the bed and shower, a curbless shower with a bench, grab bar blocking in the walls, wider doors, lever handles, non-slip floors and good night lighting. None of it has to look clinical.
Can the estimate be sent to my siblings too?
Yes. We send the same written estimate to every family member you name, with each option priced on its own line. We answer questions from each person in writing, so everyone decides from the same information.
Will an in-law suite add value to my home?
A well-built suite with a private bath often adds value as a guest suite, home office or rental where allowed. Step-free features also appeal to many buyers. The added value depends on your market and on how the suite is permitted.
In-law suites near you
Your remodeling address, within our service area.
Suites are built by local crews under the license of your state. The supervisor can meet the family on site or by video if a sibling lives far away.
- Maine
- New Hampshire
- Massachusetts
- Rhode Island
- Connecticut
- New York
- New Jersey
- Pennsylvania
- Delaware
- Maryland
- Virginia
- North Carolina
- South Carolina
- Georgia
- Florida
- Check your remodeling address
Free in-law suite plan
Send your answers about the person moving in. Get a plan and three prices in writing.
An in-law suite supervisor reads your answers, texts you within five minutes on business days and sets a visit that suits the whole family.