Front of 597 Mariposa Avenue
597 Mariposa AvenueOttawa (Rockcliffe)
For Sale
1/54
Ontario Real Estate › Ottawa › Rockcliffe Park
Front of 597 Mariposa Avenue
597 Mariposa AvenueOttawa (Rockcliffe)
For Sale
See all 54 photos
DetachedMLS X12930804
4 Bedrooms
5 Bathrooms
3 Garage
3.5K~5K Sq.Ft.
133.87 x 231.74 ft Lot
$40,295 Tax/yr
Down Payment AssistanceGet Best Mortgage Rates
Buy with HOMEH and get back$39,585Cashback Rebate, paid after closing
Claim my rebate

Contact agent

Leave your name and number. A HOMEH agent calls you back.

Book a viewing

Wed28
Thu29
Fri30
Sat31
Sun1
Mon2
Tue3
Pick a time

Ask HOMEH

Ask about this home

About this home

597 Mariposa Avenue, Ottawa

Rare waterfront family home set in the Old Village of Rockcliffe Park. Set on a 42,000+ square foot lot along the shores of Mackay Lake, this notable lakefront residence represents an offering seldom seen. This is a home that has long drawn admiration for its setting, privacy, and quiet luxury. Inspired by the coastal architecture of Maine and Nantucket, the home carries a timeless beauty. The property has a private dock and southern and western exposures bring light across the grounds throughout the day. A gracious front veranda and three well-placed balconies, accessed from the family room, primary suite, and ensuite bathroom, extend the living spaces outward and frame uninterrupted lake views. Nearly every principal room is oriented to the water, creating a calm and picturesque backdrop. The landscaped gardens and flagstone terraces offer privacy and natural beauty, while a triple garage, rarely found in the Old Village of Rockcliffe Park, adds a practical distinction. Properties of this calibre in Rockcliffe Park are held for generations and rarely offered to market. This is a singular opportunity to acquire one of Rockcliffe Park's true dream properties, a landmark home with a low heritage rating in an extraordinary setting.

Built-In OvenStorageWaterPanoramicTrees/WoodsPrivacy

Facts & features

TypeDetached
Style3-storey
Size3.5K~5K Sq.Ft.
Lot133.87 x 231.74 ft
Tax$40,295 (2026)
HeatingForced air, gas
CoolingCentral air
BasementPartial basement, partially finished
Parking5 drive
WaterMunicipal
FireplaceYes, natural gas, wood

Book a viewing

Wed28Oct
Thu29Oct
Fri30Oct
Sat31Oct
Sun1Nov
Mon2Nov
Tue3Nov
Pick a time

Rooms

21 rooms · 5 bathrooms
Main floor9 rooms
  • Kitchen14′4″ × 10′6″150 sq.ft.
  • Foyer9′6″ × 8′11″84 sq.ft.
  • Powder room5′2″ × 2′8″14 sq.ft.
  • Study10′10″ × 7′11″86 sq.ft.
  • Mud room10′11″ × 6′9″73 sq.ft.
  • Dining room20′10″ × 11′10″246 sq.ft.
  • Family room16′ × 12′2″194 sq.ft.
  • Great room23′11″ × 20′3″483 sq.ft.
  • Breakfast10′6″ × 9′10″103 sq.ft.
Second floor5 rooms
  • Family room15′11″ × 12′1″192 sq.ft.
  • Bathroom14′7″ × 12′2″177 sq.ft.
  • Primary bedroom20′3″ × 14′283 sq.ft.
  • Bathroom11′1″ × 5′10″64 sq.ft.
  • Bedroom14′3″ × 10′6″149 sq.ft.
Third floor3 rooms
  • Bathroom7′8″ × 6′11″53 sq.ft.
  • Bedroom13′9″ × 13′2″181 sq.ft.
  • Bedroom13′7″ × 12′4″167 sq.ft.
Basement4 rooms
  • Laundry14′5″ × 8′8″125 sq.ft.
  • Recreation18′2″ × 10′5″189 sq.ft.
  • Utility room16′2″ × 12′9″205 sq.ft.
  • Powder room5′2″ × 4′8″24 sq.ft.
Bathrooms5
6-pcSecond4-pcSecond4-pcThird2-pcMain2-pcBasement

Around this home

Mariposa Avenue & Lisgar Road

Listing details

MLS® numberX12930804
Listed onMar 27, 2026
Days on market215
UpdatedOct 28, 2026
Listing brokerageMARILYN WILSON DREAM PROPERTIES INC.
Possession2026-04-15 / Immediate

Helpful tools

Mortgage calculator
Closing costs
Land transfer tax
Buyer guide

Your HOMEH agent

NimaHOMEH agent · Ottawa

"Priced 26% over our estimate. I would see it this week."

Ask Nima

Ask HOMEH about this home

Price, neighbourhood, monthly cost. Ask anything.

HOMEH Intelligent Agent is an AI, not a licensed representative. Check anything important with your agent.

© 2026 HOMEH Inc., Brokerage · RECO Registration #6000380 · 505 Highway 7 East, Units 308 & 309, Thornhill, ON L3T 7T1 · Listing data courtesy of the MLS® System of the listing brokerage, deemed reliable but not guaranteed.

Disclaimers and terms

HOMEH is operated by HOMEH Inc., a licensed Ontario real estate brokerage regulated by the Real Estate Council of Ontario (RECO) under the Trust in Real Estate Services Act, 2002 (TRESA). Under TRESA, consumers are entitled to the RECO Information Guide before entering into a representation agreement. Broker of Record Licence #5034208. Toronto Regional Real Estate Board Member #20004000.

Cashback Rebate. Paid by HOMEH Inc., Brokerage from the commission it receives, on closing, to eligible buyers who came to HOMEH as HOMEH leads. Subject to the buyer representation agreement, lender approval and legal limits; amounts vary with price, commission received and transaction type. Not a government incentive, tax credit or refund. Full terms and conditions apply.

Mortgage. Payment figures are estimates for illustration only, not an offer to lend; all financing is on approved credit (OAC). HOMEH Inc., Brokerage is not a mortgage broker, agent or lender; mortgage products and advice come from independent professionals licensed by the Financial Services Regulatory Authority of Ontario (FSRA).

HOMEH Estimate. Worked out with automated tools from recent nearby sales of similar homes. For information only, not an appraisal.

Accuracy. Listings, market data, photos, school, transit and neighbourhood information come from sources believed reliable, including the MLS® System and the Toronto Regional Real Estate Board (TRREB), but are not warranted accurate, current or complete. MLS® listing data is copyright TRREB. It must only be used by consumers with a bona fide interest in the purchase, sale or lease of real estate, and not for any commercial purpose.

Programs. Programs, incentives and benefits on this website are privately administered, may change or end without notice, and imply no government authority, endorsement or affiliation.

Not intended to solicit clients currently under contract with another brokerage.

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 trademarks MLS®, Multiple Listing Service® and the associated logos are owned by CREA and identify the quality of services provided by real estate professionals who are members of CREA. Used under licence.