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310-3100 Steeles Ave W, Vaughan, ON, L4K 3R1
905-553-8500info@summitly.ca

©2026 Summitly. All rights reserved. Coldwell Banker Summit Realty, Brokerage — RECO Registration #6018570.

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Listing data is provided by the Toronto Regional Real Estate Board (TRREB) via PropTx and is deemed reliable but not guaranteed. Coldwell Banker Summit Realty, Brokerage — an independently owned and operated Coldwell Banker franchise.

REALTOR® Disclosure▾

For listings in Canada, 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 license.

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    For sale On market 22 days

    121 Tremont Park Island

    ·Leeds and the Thousand Islands, ON··

    • 4 beds
    Leeds and the Thousand Islands real estate›X13528914
    • Overview
    • History
    • Details
    • Location
    • Mortgage
    • Investment
    • Comparables
    • FAQ
    Open house & tour

    3 upcoming open houses

    Drop in during an open house, or tour online — no appointment needed.

    • Open house
      Date TBD
      Time TBD
    • Open house
      Date TBD
      Time TBD
    • Open house
      Date TBD
      Time TBD
    Overview

    What this listing tells us

    Property description

    Experience the perfect blend of historic charm and relaxed waterfront living at this beautifully maintained 1903 summer home on picturesque Tremont Park Island, just minutes from Gananoque Marina. Set on over 200 feet of pristine shoreline, this classic summer home offers multiple spaces to unwind and entertain. Begin your day lounging on the waterside deck, then move to the beautiful covered porch with views of children playing on your private beach. Whether you're soaking up the sun or enjoying the shade, this property offers a peaceful escape in every direction. Inside, the home exudes character starting with a grand stone fireplace anchoring the living room paired with exposed beams and immaculate pine floors that flow through the formal dining room and den. The recently renovated kitchen is a gathering place featuring granite counters, new appliances, spacious island with built-in stove, double drawer refrigerators, coffee bar, mini pantry, plus easy access to east facing deck. The main floor includes convenient laundry and 2 piece bath while upstairs you'll find 4 spacious bedrooms and 3 piece bath. Step outside to your expansive stone patio and outdoor kitchen equipped with built-in BBQ and wet bar w/chiller tray for keeping drinks cool in summer months. A towering custom-built stone fireplace extends the patio season and creates a perfect setting for unforgettable evenings. Guests feel right at home with additional accommodations w/3 piece bath above the double-slip boathouse, recently reinforced with steel and concrete decks. A charming bunkie and storage shed provide additional versatility. This legacy-style retreat is a rare find in one of Canada's most sought-after destinations. Featuring extensive docking and timeless character, this is a unique opportunity to own a true piece of paradise in the heart of the Thousand Islands.

    Cleaned for readability — original MLS® text was lightly de-abbreviated and decapitalized.

    History

    Listing, price, and tax history

    Every previous listing of this property, every list-price change, and 5 years of estimated annual property tax — switch tabs to drill in.

    DateEventStatusPriceChangeMLS®View
    Jul 6, 2026ListedCurrentFor sale$1,495,000 —X13528914This page
    Apr 1, 2026Previously listedTer$1,750,000 —X12942804View
    Sourced from MLS® · includes all previous listings of this property · tap View to open the archived listing in a new tab
    Property details

    Inside this property

    Systems, finishes, room dimensions, and building information — pulled from the full MLS® feed.

    Features & systems

    Heating, cooling, parking, exterior, lot, possession, and more.

    • Systems

      5
      Heating
      Baseboard
      Air conditioning
      Window Unit(s)
      Fireplaces
      2
      Water source
    Location & lifestyle

    Getting around, schools & the block

    Walkability and transit, the nearest schools, an interactive map of the exact spot, and what's nearby.

    📍 121 Tremont Park Island
    What's nearby

    Points of interest classified by the MLS® feed.

    • Beach
    • Golf
    • Island
    • Marina
    Financials

    The money — monthly cost, mortgage & return

    Everything financial in one place: what you'd pay each month, a live mortgage calculator at the asking price, and what it could return as a rental.

    Cost of ownership

    A monthly snapshot at typical assumptions — personalize the mortgage just below.

    Est. monthly mortgage
    $7,344
    20% down · 25y · 5.50% — adjust below ↓
    Est. monthly property tax
    $463
    0.37% mill rate · ON
    The market

    How this home sits in the Leeds and the Thousand Islands market

    Live neighbourhood stats, the closed sales you'd negotiate against, and comparable active listings.

    The Leeds and the Thousand Islands market right now

    Average sold price, days on market, and closed-transaction count for Leeds and the Thousand Islands — sourced from MLS®.

    • Avg sold price
      $647,979
      Last 30 days
    • Median sold price
      $587,500
      Middle of the market
    • Days on market
      91 d
      Avg from list to close
    • Closed last 30d
      32
      MLS® transactions
    Full Leeds and the Thousand Islands market report
    Buy with Coldwell Banker Summit Realty

    We'll get you into 121 Tremont Park Island — the seller pays our commission

    On every MLS® listing in Canada, the seller's brokerage pays a cooperating commission to whoever brings the buyer. Buyer representation is free to you.

    Free buyer representation · Coldwell Banker® affiliate

    $0 to you. The seller pays our fee.

    On every MLS® listing in Canada, the seller's brokerage advertises a cooperating commission for the buyer's agent. A Coldwell Banker Summit Realty agent represents you — you owe us nothing.

    Call now
    Due diligence

    Property flags & disclosures

    An automated scan of public records and news for anything a buyer should know about this specific address — liens, outstanding work orders, or stigma-related history. We never invent flags.

    Nothing concerning surfaced — all clear.

    We scanned public records and news for liens, outstanding work orders, and stigma-related history (e.g. a former grow-op or fire) at 121 Tremont Park Island and found nothing flagged. We re-check automatically as new records publish.

    Frequently asked

    Common questions about this property

    Tap a question to expand the answer. Short, direct answers tuned for AI search and voice assistants.

    • How much is 121 Tremont Park Island listed for?

      121 Tremont Park Island is listed at $1,495,000 on the MLS® (listing X13528914). The price refreshes on Summitly within minutes of any MLS® change.

    • How many bedrooms, bathrooms, and square feet does 121 Tremont Park Island have?

    Coldwell Banker Summit Realty is a RECO-licensed Ontario real estate brokerage, independently owned and operated. Mortgage financing is arranged through Mortgage Squad Advisors. Summitly is the technology platform that powers this site. Listing data is sourced from MLS® and is provided for informational purposes only — not guaranteed accurate by the MLS® or its members. 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.

  1. 2 baths
  2. 2000-2500 sqft
  3. Detached
  4. Built 100+
  5. < .50 ac lot
  6. Asking
    $1,495,000
    $0 / sqft · MLS® X13528914
    Chat Zara
  7. Zara AI Estimate
    Live · refreshes nightly
    Estimated value
    $764,615
    $703,446Confidence range$825,784
    Asking vs estimate
    ↑↑well-above
    +$730,385
    (+95.5%)
    Asking is well above
    Run the affordability numbers

    Based on the city's average sold price, adjusted for 4 bedrooms (no sqft on file).

    Market analytics

    Homes like this in Leeds and the Thousand Islands sell in about 91 days — this one has been listed 22 days.

    Avg sold price
    $647,979
    Median sold
    $587,500
    Avg days on market
    91
    Recently sold
    32
    See comparable sales
    AI highlights by Zara
    • Experience the perfect blend of historic charm and relaxed waterfront living at this beautifully maintained 1903 summer home on picturesque Tremont Park Island, just minutes from Gananoque Marina.
    • Begin your day lounging on the waterside deck, then move to the beautiful covered porch with views of children playing on your private beach.
    • Step outside to your expansive stone patio and outdoor kitchen equipped with built-in BBQ and wet bar w/chiller tray for keeping drinks cool in summer months.
    • A towering custom-built stone fireplace extends the patio season and creates a perfect setting for unforgettable evenings.
    Ask Zara a follow-up
    Other
    Sewer
    Septic
  8. Parking & garage

    4
    Garage
    Other
    Garage spaces
    2
    Parking spaces
    2
    Driveway
    None
  9. Interior

    6
    Basement
    Crawl Space
    Family room
    N
    Kitchens
    1
    Total rooms
    10
    Laundry level
    Main Level
    Elevator
    N
  10. Exterior & construction

    6
    Exterior
    Vinyl Siding
    Roof
    Shingles
    Foundation
    Stone
    View
    Panoramic, Trees/Woods, Water
    Waterfront
    Y
    Pool
    None
  11. Lot & land

    2
    Year built
    100+
    Zoning
    RI - Island Residential
  12. Listing & possession

    3
    Occupancy
    Immediate
    Property style
    1 1/2 Storey
    Property class
    Detached
  13. Room-by-room · 10 rooms

    Every room with its dimensions, level, and notable features.

    Room dimensions

    Main level

    5 rooms
    • Den
      12.5 × 10.9 ft
    • Kitchen
      24.1 × 16.3 ft
    • Dining Room
      19.9 × 12.8 ft
    • Living Room
      26.7 × 13.7 ft
    • Laundry
      2 Pc Bath
      6.1 × 5.7 ft

    Second level

    5 rooms
    • Bedroom 2
      13.2 × 11.8 ft
    • Primary Bedroom
      15.4 × 11.9 ft
    • Bedroom 4
      13.7 × 13.4 ft
    • Bedroom 3
      17.1 × 9.9 ft
    • Bathroom
      3 Pc Bath
      10.3 × 6.6 ft
  14. Park
  15. Waterfront
  16. Combined estimate
    $7,807
    Mortgage + tax · before condo / insurance

    Mortgage & affordability

    Today's best Canadian rates from Mortgage Squad, then a live calculator — adjust down payment, amortization, and rate, and email yourself the report.

    Today's rates · Powered by Mortgage Squad
    350+ lender access · Best rate matched in 2 min
    Lock my rate
    • Best
      5-yr Fixed · Insured
      4.09%
      0.40% below banks
    • 5-yr Fixed · Conventional
      4.34%
      APR · OAC
    • 3-yr Fixed · Conventional
      4.49%
      APR · OAC
    • 5-yr Variable · Variable
      4.85%
      APR · OAC
    Rates indicative · Updated today · OAC, subject to underwritingSee all Mortgage Squad rates →
    Affordability calculator
    Estimated monthly payment
    $7,344
    /mo
    based on the purchase price of $1,495,000
    $299,000 cash
    $1,196,000 financed
    $1,007,346 total interest
    Monthly payment$7,344/ month
    Principal54%$1,196,000
    Interest46%$1,007,346

    20% down · 25-yr amortization · 5.50% rate. Principal & interest only — taxes, condo fees, and insurance not included.

    Email this mortgage report to yourself

    Save the full affordability breakdown — down payment, monthly, interest paid, and today's Mortgage Squad rate — in your inbox. Create a free Summitly account to save it, get rate-drop alerts, and build a shortlist.

    or send as guest
    Get pre-approved in minutes

    Know exactly what you can afford — a no-obligation pre-approval from Mortgage Squad.

    Rental income & return

    What this home could rent for and the return at the asking price — an AI estimate against real property tax and condo fees.

    Est. monthly rent
    low–high
    Gross yield
    rent × 12 ÷ price
    Cap rate (est.)
    net of tax + fees

    AI estimate for discussion only — not an appraisal or investment advice. Yield and cap rate are derived from the estimated rent versus the asking price and real property tax.

    Comparable detacheds that just sold in Leeds and the Thousand Islands

    Swipe the closed sales, then use the table for a side-by-side $/sqft comparison against this home.

    • 942 Teddys Lane
      Sold
      Sign in for price
      942 Teddys Lane
      Detached
    • 594 Lyndhurst Road
      Sold
      Sign in for price
      594 Lyndhurst Road
      Detached
    • 920 Warren Lane
      Sold
      Sign in for price
      920 Warren Lane
      Detached
    • 1 Hickey Island
      Sold
      Sign in for price
      1 Hickey Island
      Detached
    • 1423 County Rd 2 Road
      Sold
      Sign in for price
      1423 County Rd 2 Road
      Detached
    • 162 Escott/ Rockport Road
      Sold
      Sign in for price
      162 Escott/ Rockport Road
      Detached
    AddressBd / BaSqftSold$/sqft% of askSold
    121 Tremont Park IslandThis home4 / 220,002,500$1,495,000ask———
    942 Teddys Lane3 / 1700—
    594 Lyndhurst Road3 / 21,500—
    Sold prices are hidden under TRREB rules. to reveal them.

    More detacheds in Leeds and the Thousand Islands

    Active listings within ±20% of this asking price.

    • 3360-A County Road 3 Road
      $1,499,000
      3360-A County Road 3 Road
      Detached 3 3
    • 119 Thousand Island Parkway
      $1,249,900
      119 Thousand Island Parkway
      Detached 3 3
    • 1 Sampson Island
      $1,399,000
      1 Sampson Island
      Detached 6 2
    • 6 Vanston Road
      $1,399,000
      6 Vanston Road
      Detached 4 3
    AI-first listing data

    Zara's valuation, full price history, room insights, and live MLS® refresh — all in one feed. No more comparing 4 sites.

  17. One team, no handoffs

    Your realtor, mortgage broker, and offer-night closing team work side-by-side. One conversation, not three.

  18. Showings on YOUR schedule

    Same-day showings for shortlisted homes, evenings + weekends. Your Coldwell Banker Summit Realty agent coordinates with the listing brokerage.

  19. Mortgage that closes

    Pre-approval, rate hold, and 350+ lender access via Mortgage Squad Advisors — no juggling lender chats yourself.

  20. Public listing courtesy of ROYAL LEPAGE PROALLIANCE REALTY, BROKERAGE · displayed on Summitly per MLS® data-share rules

    121 Tremont Park Island is a 4-bedroom, 2-bath, 2000-2500 sqft. Full room dimensions and floor breakdown are in the 'Rooms' section of this page.

  21. When was 121 Tremont Park Island built?

    121 Tremont Park Island was built in 100+. Construction style, foundation, roof material, and EnerGuide rating (when published) are in the 'Features' section above.

  22. What is the property tax for 121 Tremont Park Island?

    The 'Property tax' tab in the History section shows the most recent annual tax for 121 Tremont Park Island plus a 5-year breakdown with YoY % change. Monthly equivalent is shown alongside.

  23. How much would the monthly mortgage be on 121 Tremont Park Island?

    The affordability calculator on this page shows an estimated monthly mortgage for $1,495,000 at 20% down, 25-year amortization, and 5.5% rate. Adjust the sliders to model your own down payment and rate.

  24. Has 121 Tremont Park Island been sold before?

    The 'Listing history' tab above lists every previous MLS® listing of 121 Tremont Park Island with its list date, sold price (when sold), and final status. Each row is colour-coded with price-change arrows.

  25. What neighbourhood is 121 Tremont Park Island in?

    121 Tremont Park Island is in The Islands, Leeds and the Thousand Islands. The 'Neighbourhood' section below links to the live Leeds and the Thousand Islands real estate hub with average sold price, days on market, and current inventory.

  26. Is Leeds and the Thousand Islands a good place to live?

    Leeds and the Thousand Islands is one of ON's actively-tracked Summitly markets. The full Leeds and the Thousand Islands real estate hub covers live average sold price, days on market, and neighbourhood-level inventory.

  27. 920 Warren Lane
    3 / 2
    1,500
    —
    1 Hickey Island3 / 21,100—
    1423 County Rd 2 Road4 / 22,000—
    162 Escott/ Rockport Road3 / 31,500—