Compact suite
$95k–$150k
- Bedroom about 13 by 15 feet
- Shower, single or double vanity
- Two reach-in closets
- Foundation, roof and siding match
- Heat and cooling for the suite
- Permit and inspections
Master suite additions · Licensed & insured · NARI member
A master suite addition with the bath, the closet and the quiet
priced as one project.
A licensed supervisor plans the primary suite as three rooms that work together: bedroom, bathroom and walk-in closet, placed where the house and lot allow. You get a written estimate in three levels within 24 hours, starting near $95,000 for a compact suite on the ground floor.
Text a photo of the side of the house where you picture the suite. Your reply comes from a suite supervisor within 5 minutes during business hours.
- 400 sq ftTypical suite size
- 16–22 wkFull suite build
- 4.9410 reviews
- 24hWritten estimate
What happens after you text us
A supervisor asks how you want to live in the suite. Then where to put it.
A primary suite is judged in the morning: who wakes first, where the light comes from, whether the closet is on the way to the shower. The first texts cover that, plus two photos, and end with a visit and an estimate date.
- Layout talked through before anyone draws a line
- Ground floor or upstairs weighed on your lot, not in general
- Visit and written estimate dates set in the first thread
Hi, we share one hall bath with our two kids and we are done with it. Thinking of adding a master suite off the back of the house.
Hi Jen, Tom here, I build suites for ProBuild Remodeling. That is the most common reason we hear. Can you send a photo of the back of the house and tell me which bedroom you sleep in now?
Photo sent. Our room is the back corner, next to the patio doors. My husband gets up at 5 for work.
Then we can turn your current room into the closet and the bath and add the bedroom beyond it, so his alarm and the shower stay away from the kids. I can come Monday at 6 and you would have three layouts priced by Thursday.
Monday is fine. Do we need a design already?
No. Bring a list of what bothers you about the bathroom you share now. That is the brief. See you Monday.
What a master suite addition costs
A master suite addition costs $95,000 to $375,000. The bathroom decides most of the difference.
Prices cover the bedroom, the bathroom and the closet as one addition with mid-range to upper finishes. Building over a garage adds structure; a ground-floor suite adds foundation. Your estimate shows three levels for your placement.
Full primary suite
$150k–$240k
- Bedroom about 15 by 18 feet
- Walk-in shower and soaking tub
- Double vanity and private toilet
- Walk-in closet with shelving
- Heated tile floor in the bath
- Sound insulation to the house
Suite retreat
$240k–$375k+
- Everything in Full primary suite
- Sitting area or small office
- Curbless steam shower
- Dressing room with an island
- Vaulted ceiling or skylights
- Private patio or balcony door
Price your suite in ten seconds
Pick the suite level, its size and the kind of house it attaches to. The range adjusts with each choice, based on the same three levels our supervisors quote.
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 written suite estimateWhere the money goes
The bathroom takes a quarter of the budget in about a fifth of the floor space.
Averages from recent full primary suites we built. Tile, plumbing and glass make the bath the most expensive square footage in the house, which is why the bath choices move your price more than the bedroom size.
Get my itemized suite estimate
Ground floor or upstairs
Build the suite on the ground floor when you plan to stay. Build above when the lot is full.
A ground-floor primary suite needs yard and a foundation; a suite over the garage needs structure but no land. The right answer depends on your lot and on the next twenty years. At the visit we check six things and write down which one fits.
| If this is true | Build it |
|---|---|
| You want to live in this house past retirement | Ground floor |
| The yard is small or near the setback lines | Upstairs |
| Someone in the home finds stairs hard already | Ground floor |
| There is an attached garage with a sound slab | Upstairs |
| You want a door straight onto the garden | Ground floor |
| You want the suite far from the kids' rooms | Upstairs |
How long it takes
A full primary suite takes about five months, with the bath finished last and done right.
A compact suite runs 14 to 18 weeks, a retreat 22 to 30. The bathroom tile and glass come at the end, after the shell is dry, so nothing gets rushed to make up time lost to weather.
Before day one
Layout and permit
Three layouts drawn, tile and fixtures chosen, permit filed. Four to eight weeks before we dig or frame.
Weeks one to six
Foundation and shell
Footings or garage reinforcement, then framing, roof and windows until the suite is sealed from weather.
Weeks seven to twelve
Plumbing and tile
Drains and supply lines, waterproofing tested, then tile on shower walls and the heated bath floor.
Final weeks
Closet and finish
Closet system, trim, doors, glass, paint, then the wall to the house is opened and your walkthrough held.
Before and after
Three couples who stopped sharing a hall bath, and what their suite looks like now.
What your suite is finished with
Every fixture and finish is named in the estimate, so the bath you picture is the bath you get.
The suite quote most likely to disappoint just says tile allowance and plumbing fixtures. Ours names the brand, the line and the size, so you can see them in a showroom before you sign.
Shower waterproofing
Schluter KERDI membrane or a Wedi board system under every tile, flood-tested before the tile goes on, so the shower cannot leak.
Plumbing fixtures
Kohler, Moen or Delta valves and shower systems with pressure balance, so a flush in the other bathroom never scalds you.
Heated tile floor
An electric mat like Schluter DITRA-HEAT or Nuheat under porcelain tile, on its own timer, so the floor is warm at 6 a.m.
Freestanding tub
Acrylic or cast-iron tubs from Kohler or Victoria and Albert, with a floor-mounted filler and a solid base built under it.
Closet system
Wood or melamine shelving from California Closets or Elfa, with double hanging rods, drawers and lighting that turns on inside.
Sound insulation
Rockwool Safe'n'Sound batts in the shared wall and a solid-core door, which cut the noise from the rest of the house 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 your suite
Three people you meet first and see every week after.
A suite blends addition work and bathroom work. You meet the supervisor, the lead carpenter and the tile setter before construction, and they carry the project from footings to the last grout line.
Suite supervisor
Runs the build, the inspections and your weekly update.
Lead carpenter
Frames the suite, builds the closet and hangs every door.
Tile and bath specialist
Waterproofs, tiles and sets the glass in your new bathroom.
Recent suites, with the real numbers
Three primary suites, three budgets, three move-in dates we kept.
Colonial, ground-floor suite
- Final price
- $186,300
- Duration
- 19 weeks
- Location
- City, ST
Suite over a two-car garage
- Final price
- $228,700
- Duration
- 21 weeks
- Location
- City, ST
Compact ranch suite
- Final price
- $118,900
- Duration
- 15 weeks
- Location
- City, ST
Your suite is not average
Your house and your mornings are different. Here is how the estimate follows them.
Each suite starts from the same three levels, then adjusts for placement, plumbing and the way the two of you live. Pick the case that is closest to yours.
Planning to stay for decades
A ground-floor suite with a curbless shower, a wide door and blocking for grab bars lets you stay in the house when the stairs become a chore. It looks like a spa bath now and simply keeps working later.
Plan a suite for staying long termAway from the kids' rooms
Distance is the point of a primary suite for many parents. We place it across the house or above the garage, add sound insulation to the shared walls and keep the laundry close, so early alarms wake nobody else.
Plan a suite away from the kidsAn older house
Older homes rarely have plumbing where the suite goes and may have lead paint on the wall we open. The estimate names the new drain route, the lead-safe steps and the rot check, so the price already reflects them.
Price a suite on my older houseA tight lot
When the yard is small, a suite above the garage or a compact layout that borrows an existing bedroom can still fit a real bath and closet. We show you both options drawn to scale on your lot before you decide.
Fit a suite on my tight lotWatching the budget
A shower instead of a tub, one walk-in closet instead of a dressing room and fixtures in standard sizes save tens of thousands. We point out which cuts you will never notice and which ones you would regret daily.
Price a suite on a tighter budgetA true retreat
Steam shower, heated floors, a soaking tub by the window, a dressing room with an island. Each upgrade has its own line and price in the estimate, so you choose the ones worth it instead of accepting a bundle.
Price my primary suite retreatSelling in a few years
Buyers of family homes look for a primary suite first. We scope one with broad appeal: a double vanity, a large shower, a walk-in closet and neutral tile, and none of the choices a buyer would want to remove.
Price a suite that helps resaleHot or humid summers
A suite on the sunny side needs shade, low-E glass and a bath fan that actually clears steam. We size the cooling for the suite alone, so the bedroom is not the warmest room in the house on a July night.
Price a suite built for the heatWhat this service is
A master suite addition, defined the way we quote it.
Master suite addition, also called a primary suite addition, is the construction of a new bedroom with its own private bathroom and closet, attached to an existing house on the ground floor or above a garage or wing. ProBuild Remodeling builds it as a licensed general contractor, including foundation or structure, plumbing, tile and finishes, under one contract.
The service covers compact suites with a shower bath, full primary suites with a tub, double vanity and walk-in closet, and larger retreats with a sitting area and dressing room. It can reuse an existing bedroom as the bath and closet. It does not cover remodeling a primary bathroom that already exists, which is a bathroom remodel, or a bedroom added without a bath, which is a home addition.
It is for couples who share a hall bath with their children, owners who want a ground-floor suite to stay in the house as they age, and families adding a private suite for a parent. It is not for homes where the budget only allows a bathroom update, or for lots with no room to build out or up.
The words you will see on your suite estimate
- Primary suite
- The current term for a master suite: a bedroom with its own bathroom and closet, usually the largest bedroom in the house.
- Three-quarter bath
- A bathroom with a shower, sink and toilet but no tub. It saves space and cost in a compact primary suite.
- Curbless shower
- A shower with no step at the entry. The floor slopes gently to a linear drain, so water stays in and nobody trips.
- Waterproofing membrane
- A sheet or board system behind the tile, such as Schluter KERDI, that keeps water out of the walls if grout ever cracks.
- Sewage ejector pump
- A pump that lifts waste up to the sewer line when a new bath sits too low or too far away for gravity to work.
- Pressure-balance valve
- A shower valve that keeps the temperature steady when someone flushes a toilet or runs water elsewhere in the house.
- Sound batts
- Dense mineral wool insulation placed in interior walls to cut noise between the suite and the rest of the house.
- Allowance
- A set budget for items not yet chosen, like tile. Our estimates name the product instead whenever you have already picked it.
Questions we hear on every suite call
The eight questions couples ask before adding a suite.
How much does a master suite addition cost?
Most full primary suites land between $150,000 and $240,000 for about 400 square feet with a bedroom, full bath and walk-in closet. A compact suite with a shower bath starts near $95,000. Retreats with a sitting area and spa bath run $240,000 and up.
How big should a master suite addition be?
Most land between 350 and 500 square feet: a bedroom of about 15 by 18 feet, a bath of 90 to 130 square feet and a walk-in closet of 40 to 70. Smaller suites work well when the layout borrows an existing bedroom.
Is it better to add a master suite on the ground floor or upstairs?
A ground-floor suite is the better choice if you plan to stay into retirement and have the yard for it. Building above a garage suits smaller lots and gives more separation from the rest of the house. We draw both on your lot at the visit.
How long does it take to build a master suite addition?
A compact suite takes 14 to 18 weeks of construction, a full primary suite 16 to 22 and a retreat 22 to 30. Design, selections and the permit add four to eight weeks before we start.
Can we turn an existing bedroom into part of the suite?
Often, yes. A bedroom beside the planned addition can become the bath and closet, with the new bedroom built beyond it. It reduces new square footage and cost, and keeps the suite connected to the house.
Does a master suite addition increase home value?
In most family neighborhoods a primary suite is one of the features buyers look for first, so a well-designed one supports the sale price. It rarely returns its full cost on its own; plan it for how long you will enjoy it.
Will the new bathroom have enough water pressure and hot water?
We check the supply line size and the water heater at the visit. If a second shower would run short, the estimate includes a larger tank or a tankless heater so both bathrooms can run in the morning.
Can the suite work for a parent moving in with us?
Yes. We build it with a no-step entry, a curbless shower, a wide door and a separate thermostat, and add a small sitting area or kitchenette if needed. We send the estimate to every family member helping decide.
Master suite additions near you
Your remodeling address, within our service area.
Plumbing codes and setbacks differ between towns. Each suite is built by a local crew working under the license of its state.
- 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 master suite estimate
Send your answers tonight. Get three suite layouts priced in writing.
Your suite supervisor reads the answers, texts back within 5 minutes during business hours and books the layout visit in the same conversation.