Most of what a bathroom costs is decided behind the tile: the drain location, the waterproofing, the wiring. The cost of bathroom remodel projects reached a national median of $15,000 in 2025, according to Houzz’s 2026 bathroom trends study, yet that single figure blends a new vanity with a full gut. This guide shows what homeowners actually spent by size and scope, what pushes an Orange County budget higher, and how to get a real number for your home before demolition starts.
Key Takeaways
- National median spending on bathroom upgrades was $15,000 in 2025, and major remodels came in at a $25,000 median.
- Bathroom size and whether the shower gets rebuilt move the budget more than any single finish.
- Moving plumbing, older-home requirements and custom tile work are the items most likely to raise your total.
- California caps home improvement down payments at $1,000 or 10 percent of the contract price, whichever is less.
- Finishing the layout and selections in 2D and 3D before demolition gives you a number you can plan around.
What Is the Average Cost of Bathroom Remodel Projects?
The average cost of bathroom remodel projects depends mostly on scope and size. Among 1,619 U.S. homeowners surveyed by Houzz, the median was $25,000 for a major remodel, meaning at least the shower was upgraded, and $9,000 for a minor one. The top 10 percent of major projects reached $70,000.
A full bathroom remodel replaces the room’s fixtures and surfaces and rebuilds the shower or tub area, usually with new waterproofing behind it. Here’s how that same study breaks spending down:
| Remodel scope and bathroom size | Median spend | Top 10% of projects |
|---|---|---|
| Minor remodel, under 100 square feet | $5,000 | $24,000 |
| Minor remodel, 100 square feet or larger | $10,000 | $39,000 |
| Major remodel, under 100 square feet | $18,000 | $44,000 |
| Major remodel, 100 square feet or larger | $30,000 | $75,000 or more |
Size shows up quickly in those numbers. A master bathroom remodel cost tends to land near that last row, since a double vanity, a separate tub and shower, and more square feet of tile all add up. These are national survey figures, not Orange County quotes and not Millennium Construction’s pricing, so use them to size the conversation rather than to set your budget.
What Drives Bathroom Renovation Cost in Orange County?
Bathroom renovation cost climbs fastest when the work moves behind the walls. Relocating a drain, rerouting wiring, correcting past water damage or enlarging a shower adds trades, inspections and days on site. Finishes matter, but a layout change will usually move your budget more than trading one tile for another.
A bathroom remodel cost breakdown usually includes these line items, and each one can swing the total:
- Layout changes, especially moving a toilet or shower drain
- Shower construction, including the pan, slope and waterproofing membrane
- Tile and natural stone, where labor rises with slabs, niches and patterns
- Cabinetry, including a semi-custom piece, a custom vanity or a double vanity
- Frameless glass, heated floors, lighting and exhaust ventilation
Older homes can add items of their own. If your house went up before 1978, the EPA recommends hiring a lead-safe certified contractor because renovation can create dangerous lead dust. For homes built on or before January 1, 1994, California law requires noncompliant plumbing fixtures to be replaced before a permit gets final approval, and Laguna Hills’ plumbing fixture compliance form shows that applies throughout a single-family home. That can mean a new toilet or showerhead in a room you weren’t planning to touch.
What California Rules Apply to a Bathroom Remodel Contract?
California requires a written contract for any home improvement project over $500, and the down payment can’t exceed $1,000 or 10 percent of the contract price, whichever is less. Changes to scope or price go on a signed change order, which becomes part of your contract and keeps everyone working from the same number.
Permits depend on what changes. In Newport Beach, the Building Division’s permit guidance says floor covering and painting don’t need a permit, and changing a faucet typically doesn’t either, while moving an outlet or adding a permanently wired light does.
Requirements differ across Orange County. Millennium Construction works as a general contractor in Newport Beach and throughout the county, and we handle the plans and approvals your remodel needs as part of the project.
How Do You Get an Accurate Cost of Bathroom Remodel Before Demolition?
You get an accurate cost of bathroom remodel work by finishing the design before anything comes out. When the layout, fixtures and finishes are settled first, your contractor can price the room you’re actually building instead of guessing with allowances, and you can review a written scope and budget before work begins.
That’s why we work as a family-owned design build contractor, as we have since 2002. Our in-house designers draw your bathroom in 2D and render it in 3D, and because we design and estimate under one roof, we can test alternatives against your budget while they’re still drawings. Good bathroom layout planning is far cheaper to sort out on paper than on site.
Bathrooms are part of our interior remodeling work, including primary suites and guest baths, and we order materials only after you sign off on selections. Homeowners notice that discipline: one Google reviewer wrote that we “delivered on-time and on budget” on a large project, and another said we “stayed within the budget.” Your project is backed by our 3-year workmanship warranty, with coverage terms set out in your contract, and home improvement financing is available through HFS Financial if you’d like to spread out the investment.
Frequently Asked Questions
How much does a bathroom remodel cost in Orange County?
There’s no reliable county-level median, so national data is the best starting point: $9,000 for a minor remodel and $25,000 for a major one, with larger major projects reaching $75,000 or more. Your plumbing changes, finishes and home’s age decide where your project lands in Orange County.
A site visit and a finished design turn those ranges into a number for your home.
Can I renovate a bathroom for $10,000?
Yes, $10,000 can cover a minor update, particularly in a smaller room. Houzz reported a $5,000 median for minor remodels in bathrooms under 100 square feet and $10,000 in larger ones. A project that rebuilds the shower usually takes more, with an $18,000 median even in rooms under 100 square feet.
What is the most expensive part of redoing a bathroom?
The shower is usually the most expensive part of redoing a bathroom, because demolition, framing, waterproofing, drain work, tile and glass all stack up in one small footprint. Relocating plumbing adds more. Fixtures and finishes matter, yet the work inside the walls tends to take the largest share of a budget.
What is a typical small bathroom remodel cost?
A typical small bathroom remodel cost depends on whether the shower gets rebuilt. For rooms under 100 square feet, Houzz reported a $5,000 median for minor work and an $18,000 median for major remodels, with the top 10 percent of major projects reaching $44,000. A powder room has no shower, so it stays lower.
How long does a bathroom remodel take?
Your bathroom remodel timeline depends on how much changes, whether plumbing moves, which permits apply and how quickly materials arrive. A responsible schedule comes after design, not before it. At Millennium Construction, we set the schedule during design, and a single bathroom moves faster than a whole-home project.
Do I need a permit for a bathroom remodel in Orange County?
You usually need a permit when a bathroom remodel changes plumbing, electrical or ventilation, while cosmetic finish work generally doesn’t require one. Rules vary by city across Orange County, so confirm requirements for your address. Millennium Construction handles the plans and approvals your remodel needs as part of the project.
Ready to Put Real Numbers on Your Bathroom?
The cost of bathroom remodel work comes down to a few decisions you can make before demolition: how much of the room changes, what goes behind the walls and which finishes earn their price. When you’re ready to see those decisions drawn up for your home, call (949) 258-4366 or schedule a design consultation, and we’ll walk the space with you and show it in 2D and 3D before you commit.