Full-service planning, permits & construction
Licensed, insured & Ottawa-based team
Fixed-price quotes with no surprises
Basement, ensuite & powder room additions
Build From $12,000
Need an extra bathroom for your growing family? Adding a basement washroom for guests?
Our team designs and builds custom bathroom additions that make your home more comfortable, functional, and valuable — from concept to completion.
Our Recent Bathroom Additions in Ottawa
First Floor Powder Room Addition with White Vanity
Basement Bathroom Added With Glass Shower Enclosure and Floating Vanity
Basement Bathroom Added With Grey Finishes
Ensuite Bathroom Addition Features Glass Shower
Common Reasons Ottawa Homeowners Add a Bathroom
Most bathroom addition projects in Ottawa start for one of these five reasons:
01. A growing family needs more bathrooms
One bathroom for a busy household means morning lineups. Adding a second (or third) bathroom removes the daily bottleneck and adds real comfort.
02. Finishing a basement or building a suite
Adding a bathroom turns a basement, in-law suite, or rental unit into a complete, independent living space — one of the highest-value additions in Ottawa.
03. Adding an ensuite to the primary bedroom
Carving a private ensuite out of existing space or an addition gives the primary bedroom a hotel-style retreat and boosts resale appeal.
04. A convenient main-floor or powder room
A half-bath near common areas means guests aren't sent upstairs, and it frees up your main bathrooms during the day.
05. Increasing home value before selling
Bathroom count is one of the figures buyers and appraisers weigh most. A well-built addition can meaningfully lift a home's value in Ottawa's market.
06. Future-Proof Your Home
Planning for aging in place? Need a private ensuite for the master bedroom? Thoughtful additions make your home work for your future, not just today.
Plumbing, Drainage & Structure
We run new water supply and drain lines to the addition, tie into the main stack, and add venting. Below-grade or far-from-the-stack locations may need a sewage ejector or up-flush system.
Where the addition carves out new space, we handle the framing and any structural adjustments.
Electrical, Heating & Ventilation
New ESA-certified circuits, GFCI protection, exhaust ventilation, and heating tie-ins for the new room — all to the Ontario Building and Electrical codes.
Heated floors and proper ventilation are planned in from the start, not added later.
Permits, Inspections & Finishes
A bathroom addition almost always requires permits and inspections. We handle applications, coordinate inspections, and finish with waterproofing, tile, vanity, fixtures, and a final walkthrough — so the new bathroom is fully usable and code-compliant on day one.
How Our Bathroom Addition Process Works
We've refined our bathroom addition process to be clear and predictable — from feasibility and permits to construction and final walkthrough. Here's how it works:
Step 01
In-Home Consultation & Feasibility Study
We start by visiting your home, listening to your needs, and evaluating where and how a new bathroom can be added.
Whether it’s carving out space from an existing room, finishing a basement corner, or building an addition, we’ll map out the best options for your budget and timeline.
Step 02
Design &
Planning
Once we define the scope, our designers create a custom plan — layouts, 3D renderings, and finish selections.
We also prepare a detailed cost breakdown, so you know exactly what you’re getting before any work begins.
Step 03
Permits & Code Compliance
Bathroom additions in Ottawa often require permits — especially if we’re moving plumbing, adding fixtures, or expanding the home’s footprint.
We handle all applications, coordinate inspections, and ensure your project meets Ontario Building Code, so you never have to worry about paperwork.
Step 04
Construction &
Rough-Ins
Our licensed plumbers, electricians, and carpenters work in sync to lay the foundation of your new bathroom: plumbing lines, electrical wiring, framing, and ventilation.
We keep you updated at every stage, so you always know what’s happening.
Step 05
Finishes &
Fixtures
This is where your new bathroom comes to life — custom tile work, cabinetry, vanities, lighting, showers, tubs, and more.
We source high-quality materials that fit your style and your budget.
Step 06
Final Walkthrough & Warranty
Once every detail is perfect, we walk you through the finished bathroom to ensure it meets your expectations.
And because we stand behind our work, you get a written warranty for peace of mind.
Types of Bathroom Additions.
Which Bathroom Addition Is Right for You?
Every home — and every family — has different needs.
Here are the most popular types of bathroom additions we build in Ottawa:
Basement Bathroom Additions
Make your basement more livable by adding a full bath or 3-piece washroom. Perfect for guest suites, rental units, or upgrading unfinished spaces.
Ensuite Additions
Turn your primary bedroom into a true retreat with a private ensuite. Add a walk-in shower, freestanding tub, and custom vanity — designed for your comfort.
Powder Rooms (Half-Baths)
Compact and functional, powder rooms are a must for high-traffic areas. Guests stay comfortable, and you free up your main bathrooms
Full Bathroom Additions
Ideal for large families or multi-generational homes. A complete 4-piece bathroom adds flexibility and daily convenience.
Challenges of Bathroom Additions And How We Solve Them
Adding a bathroom isn’t as simple as installing a sink and toilet.
It’s about integrating a new space seamlessly into your existing home — dealing with plumbing, ventilation, and sometimes even structural changes. Many homeowners worry about complexity, cost, and disruptions. We take care of it all.
Common Challenges — And Our Solutions:
Plumbing & Drainage
The Challenge:
Connecting new fixtures often means modifying or expanding existing plumbing systems.
Our Solution:
Our licensed plumbers plan efficient routing to minimize disruption and ensure lasting performance.
Ventilation & Moisture Control
The Challenge:
Poor ventilation leads to moisture buildup, mold, and faster material deterioration.
Our Solution:
We install code-compliant ventilation systems and moisture-resistant materials for long-term durability
Structural Adjustments
The Challenge:
Adding a bathroom can affect load-bearing walls or require extensions.
Our Solution:
We conduct thorough structural assessments and collaborate with engineers to make safe, code-approved changes.
Space Planning
The Challenge:
How do you fit a functional bathroom into limited square footage?
Our Solution:
Our designers create smart, efficient layouts — from compact powder rooms to spacious full baths — making every square foot count.
Permits & Inspections
The Challenge:
Navigating Ottawa’s permitting process can feel overwhelming.
Our Solution:
We handle all permits and inspections so you don’t have to deal with the red tape.
Process Photo Gallery:
Building a Bathroom Addition in Ottawa
Why Choose Be Leaf for Your Bathroom Addition
Adding a bathroom is a big project — you need a team you can trust.
At BeLeaf Renovation, we’ve built our reputation on quality craftsmanship, clear communication, and stress-free project management. Here’s why Ottawa homeowners choose us for their bathroom additions:
We Build From Scratch, Not Just Renovate
Adding a bathroom means new plumbing, drainage, and structure — not swapping fixtures. We handle the framing, rough-ins, and ejector systems an addition actually requires.
Licensed, Insured & Code-Compliant.
Every plumber, electrician, and carpenter on our team is fully certified. We meet (and often exceed) Ontario Building Code standards on every project.
Transparent Quotes.
No Surprises.
We provide detailed, fixed-price estimates upfront. No vague “ballpark” numbers, no last-minute add-ons — just honesty.
Full-Service
Project Management.
From design and permits to construction and final inspection, you get one dedicated point of contact who keeps you informed every step of the way.
Permits & Inspections Handled For You
Additions almost always need permits. We manage applications, OBC compliance, and inspections end to end, so you never deal with paperwork.
One Team for Design, Build & Finish
From feasibility and 3D design through construction and the final walkthrough, your addition runs through one dedicated point of contact
FAQ Bathroom Additions in Ottawa
(Your Questions, Expertly Answered.)
In almost all cases — yes. Adding plumbing, electrical work, or altering your home’s structure requires permits.
The good news? We can handle it. Our team takes care of:
-
Coordinating inspections
-
provide ESA (Electrical Safety Authority)
-
OESC (the Ontario Electrical Safety Code)
-
consult to get a building permit
-
advise with a plumbing permit.
Ensuring every aspect meets Ontario Building Code
You won’t have to lift a finger (or stress about paperwork).-
On average, a bathroom addition in Ottawa costs $12,000 to $30,000+, depending on the location, whether new plumbing and drainage are needed, and any structural changes. We give a fixed, detailed quote before the project starts. See /prices for the breakdown.
Absolutely. Bathroom additions are one of the highest ROI home projects you can do. In Ottawa’s competitive market, an extra bathroom can significantly increase buyer interest and resale value. Even if you’re not planning to sell, the day-to-day convenience makes it a worthwhile investment.
Almost anywhere. Common spots include:
-
Basements: Great for guest suites or rentals.
-
Primary bedrooms: Turn it into a full ensuite.
Unused spaces: Closets, pantries, or bump-outs.
Our team will help you assess the best location based on plumbing access, layout, and budget.-
Yes — and it’s one of the best parts of working with BeLeaf. We don’t just build; we help you visualize and plan:
-
Layout planning for function and flow
-
3D renderings to see your space before construction
Material and fixture selection for any style or budget
Your bathroom addition will be customized to your taste and needs.-
Common spots are a finished or unfinished basement, under a staircase, a spare bedroom or closet, off the primary bedroom as an ensuite, or near common areas as a powder room. During the free estimate we assess plumbing access, structure, and the most cost-effective location for your home.
Yes — adding a bathroom almost always requires a building permit because it involves new plumbing, drainage, and sometimes structural work. Be Leaf handles the permit applications, ESA electrical certification, and all inspections under the Ontario Building Code as part of the project.
Most bathroom additions in Ottawa take 3 to 6 weeks, depending on permits, the location, and whether structural changes or new drainage are required. We provide a clear timeline before construction begins and keep you updated at every stage.
Bathroom Additions Across Ottawa
We plan and build bathroom additions throughout Ottawa and the surrounding communities — including Kanata, Nepean, Orleans, Barrhaven, and Stittsville. From century homes in The Glebe to new builds in the suburbs, we know how to add a bathroom that fits your home and meets Ottawa's codes.
Ready to get started?
Let’s turn your idea into a beautifully built bathroom addition.