388 Mariposa Ave is a 5-bedroom, 3-bathroom detached home in Rockcliffe Park, listed for $2,850,000. It has 2500-3000 sq ft of living space.
1The living room with fireplace opens to an all-season sunroom overlooking the backyard, with direct access to the deck and pool.
2The spacious dining room also enjoys garden views.
3Upstairs are five bedrooms, including a spacious primary suite with vaulted ceiling, fireplace and treed views, plus a bedroom with built-ins ideal as a study.
Sunlight is a defining feature of this beautiful Old Village home, from its bright interior to the sunny, private backyard with saltwater pool and gardens. Just steps from Ashbury College, this handsome brick home has been beautifully updated throughout. The living room with fireplace opens to an all-season sunroom overlooking the backyard, with direct access to the deck and pool. The spacious dining room also enjoys garden views. The granite kitchen features a large centre island and opens to a welcoming family room with fireplace and built-in banquette seating. Upstairs are five bedrooms, including a spacious primary suite with vaulted ceiling, fireplace and treed views, plus a bedroom with built-ins ideal as a study. The full finished basement adds fantastic family space with a rec room and fireplace, fitness room, study and full bathroom. A bright, beautifully updated home with wonderful indoor and outdoor living.
5 bedrooms, 3 bathrooms, about 2,500 sq ft, works out to roughly $1,140 per square foot. Chat with Zara if you'd like a deeper read on whether this detached fits your budget and timing.
Inside 388 Mariposa Ave
Every detail from the listing, in one place.
Type
Detached
Style
2-Storey
Living space
2500-3000 sq ftas stated on the listing
Parking
5 spacesYes garage
Basement
Full, Finished
Features & systems
Parking & garage
Garage
Yes
Parking spaces
5
Interior
Basement
Full · Finished
Exterior & construction
Pool
Yes
Lot & land
Lot size (sqft)
9727.98
Listing & possession
Property style
2-Storey
Property class
Detached
388 Mariposa Ave Price & Sale History
Earlier listings of this property, list-price changes, and the most recent annual property tax on the listing.
For saleListedThis listingMLS® X13812612$2,850,000
Sourced from MLS®. Includes earlier listings of this property on record.
What's it worth?
How 388 Mariposa Ave Compares to the Rockcliffe Park Market
Zara compares it with recent sales of similar homes nearby. It's a guide, not an appraisal.
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Referral disclosure: Summitly may refer you to Mortgage Squad Advisors, an affiliated mortgage partner. You are free to choose any lender or mortgage professional.
Monthly cost
Enter a rate to see the monthly cost
An estimate, not a quote. Utilities and insurance are extra.
Affordability calculator
Estimated monthly payment
$14,001
/mo
based on the purchase price of $2,850,000
$570,000 cash
$2,280,000 financed
$1,920,358 total interest
Principal54%$2,280,000
Interest46%$1,920,358
20% down · 25-yr amortization · 5.50% rate. Principal & interest only — taxes, condo fees, and insurance not included.
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Figures are Summitly estimates for illustration only — not from TRREB or the MLS® feed, and not a mortgage approval, appraisal, or financial advice.
Rental income potential
Est. monthly rent
low–high
Gross yield
rent × 12 ÷ price
Cap rate (est.)
net of tax + fees
Summitly AI estimate for discussion only — not from TRREB or the MLS® feed, and not an appraisal or investment advice. Yield and cap rate are derived from the estimated rent versus the asking price.
For homeowners nearby
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Mortgage financing is arranged through Mortgage Squad Advisors. Summitly is the technology platform that powers this site. Estimated values, AI insights, calculator results, and rental projections shown on this page are generated by Summitly and are not provided by, reviewed by, or sourced from TRREB, the MLS®, or the listing brokerage; they are not appraisals or opinions of value. The trademarks REALTOR®, REALTORS®, and the REALTOR® logo are controlled by the Canadian Real Estate Association (CREA) and identify real estate professionals who are members of CREA. The Coldwell Banker® name and logo are trademarks of Coldwell Banker Real Estate LLC.
Similar homes for sale nearby in Rockcliffe Park
Other 4–8 bed homes for sale in Rockcliffe Park around $2.9M.
388 Mariposa Ave is listed at $2,850,000 (MLS® X13812612). Summitly updates the price as soon as the MLS® record changes.
Is $2,850,000 a good price for 388 Mariposa Ave?
Summitly rates it Well Above Market: the asking price is 15% or more above Zara's estimate, an estimate built from recent sales in Rockcliffe Park. The rating is an automated opinion, not an appraisal; "What's it worth?" on this page shows how it is worked out. See Zara's estimate
Has the price of 388 Mariposa Ave changed?
No — 388 Mariposa Ave is still listed at its original asking price of $2,850,000.
How many bedrooms and bathrooms does 388 Mariposa Ave have?
388 Mariposa Ave has 5 bedrooms and 3 bathrooms, with about 2,500–3,000 square feet of living space. It is a detached home in Rockcliffe Park.
Is 388 Mariposa Ave close to transit?
The nearest rapid-transit station is Rideau Station (O-Train Line 1), about 2.8 km in a straight line. UOttawa Station is about 3.2 km, and Lees Station is about 3.6 km. Distances are straight-line, not walking routes; check the transit agency for routes and schedules.
How much would the monthly mortgage be on 388 Mariposa Ave?
About $14,001 a month — principal and interest on $2,850,000 with 20% down ($570,000), a 25-year amortization and an assumed 5.5% interest rate. The mortgage calculator on this page lets you change the down payment, amortization and rate.
How does 388 Mariposa Ave compare with other homes in Rockcliffe Park?
Its asking price of $2,850,000 is about 51% above the median sold price in Rockcliffe Park over the last 90 days, $1,887,500, across 12 closed sales on the TRREB MLS®. A city median mixes every type and size of home, so the comparable sales on this page are the closer guide.
Has 388 Mariposa Ave been sold before?
Summitly has no earlier MLS® sale or lease of 388 Mariposa Ave on record from the last two years. Older records aren't shown under TRREB rules.
Where is 388 Mariposa Ave?
388 Mariposa Ave is in Rockcliffe Park, ON. Schools, transit, parks and shops nearby are under Location & lifestyle on this page.
How long has 388 Mariposa Ave been on the market?
49 days — 388 Mariposa Ave was listed on September 22, 2026.
What is the price per square foot of 388 Mariposa Ave?
About $950 to $1,140 per square foot: the asking price of $2,850,000 over the 2,500–3,000 sq ft the listing gives as its size range.
Does 388 Mariposa Ave have parking or a garage?
Yes — the listing gives 5 parking spaces. Garage: Yes.
