Grimsby, ON · · MLS® X14129014Updated
$4,990,000Est. $24,514/mo mortgage
471 Maple Ave is a 5-bedroom, 3-bathroom detached home in Grimsby, listed for $4,990,000. It has 2000-2500 sq ft of living space.
Coldwell Banker Summit Realty, BrokerageZara is an AI virtual agent. Advisors are licensed REALTORS® at Coldwell Banker Summit Realty, Brokerage.
Situated at the end of a cul-de-sac, Lakecourt Marine occupies a private waterfront setting with approximately 352 feet of Lake Ontario shoreline, 562 feet of Grimsby Harbour frontage, and expansive views across the lake. With its own harbour and two residences, the property offers a different perspective on waterfront ownership, shaped by the character of Grimsby's historic port.Spanning approximately 4.6 acres, three adjoining parcels are offered together as one waterfront property. A pre-war two-bedroom cottage bungalow with a detached garage and a three bedroom, two bathroom Viceroy-style raised bungalow provide two distinct residential spaces, alongside three accessory buildings and an established marina with capacity for approximately 60 boats. Whether envisioned as a private waterfront estate, a multi-generation family retreat, or a residence where waterfront living and boating coexist, the homes offer an immediate residential presence. The contrast between Lake Ontario's open waters and the sheltered harbour lends the property a character of its own, while the surrounding grounds leave room for it to evolve.With approximately 2.3 acres as developable land, municipal services in place, and a combination of Residential Detached 2 (RD2) and Marine Commercial (MC) zoning, the property offers flexibility for future use and development.Rooted in Grimsby's commercial fishing history and later evolving into a family-operated marina, Lakecourt remains one of the few privately owned marina properties along this stretch of Lake Ontario. Within reach of the Greater Toronto and Hamilton Area and Niagara's established wine and tourism region, its private harbour, substantial acreage, and established residential presence offer an opportunity to create a lasting waterfront legacy on a scale seldom found along Lake Ontario's shoreline.
5 bedrooms, 3 bathrooms, about 2,000 sq ft, works out to roughly $2,495 per square foot. Chat with Zara if you'd like a deeper read on whether this detached fits your budget and timing.
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Earlier listings of this property, list-price changes, and the most recent annual property tax on the listing.
Sourced from MLS®. Includes earlier listings of this property on record.
What's it worth?
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Zara’s estimate
Summitly estimate, not from TRREB, the MLS® or the listing brokerage. Not an appraisal. How it works
Closed sales on the TRREB MLS®.
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8190 Mud Street
4 bd · 2 ba · Detached
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31 Princess Boulevard
4 bd · 3 ba · Detached
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126 Dorchester Drive
4 bd · 3 ba · Detached
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8 Hunter Road
4 bd · 2 ba · Detached
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116 Livingston Avenue
5 bd · 4 ba · Detached
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8 Nomad Court
4 bd · 2 ba · Detached
6 nearby sales vs. this home
Closed sales from MLS®, compared with this home's asking price.
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| Home | Sold price | $ / sqft | % of asking | Sold |
|---|---|---|---|---|
This home471 Maple Avenue 5 bd · 3 ba · 2,000 sqft | $4,990,000asking | $2,495 | — | — |
| 8190 Mud Street 4 bd · 2 ba · 2,000 sqft | ||||
| 31 Princess Boulevard 4 bd · 3 ba · 2,000 sqft | ||||
| 126 Dorchester Drive 4 bd · 3 ba · 1,500 sqft | ||||
| 8 Hunter Road 4 bd · 2 ba · 1,500 sqft | ||||
| 116 Livingston Avenue 5 bd · 4 ba · 3,500 sqft | ||||
| 8 Nomad Court 4 bd · 2 ba · 2,000 sqft |
4 bd · 2 ba · 2,000 sqft
4 bd · 3 ba · 2,000 sqft
4 bd · 3 ba · 1,500 sqft
4 bd · 2 ba · 1,500 sqft
5 bd · 4 ba · 3,500 sqft
4 bd · 2 ba · 2,000 sqft
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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.
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.
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Listing brokerage: SOTHEBY'S INTERNATIONAL REALTY CANADA, BrokerageMLS® X14129014 · Listing data last updated
Listing data comes from the Toronto Regional Real Estate Board (TRREB) and is deemed reliable but not guaranteed. Shown on Summitly by Coldwell Banker Summit Realty, Brokerage, which is not the listing brokerage. The information provided herein must only be used by consumers that have a bona fide interest in the purchase, sale, or lease of real estate and may not be used for any commercial purpose or any other purpose. © 2026 Toronto Regional Real Estate Board. All rights reserved.
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.
Homes for sale in Grimsby
Every active Grimsby MLS® listing, updated all day.
Curated MLS® searches this property belongs to — same city, same shape of home.
Based on 168 sales from Jul 31 – Oct 29, 2026 (110 in the prior 90 days). Aggregate MLS® figures for closed sales; individual sold prices are shown only to signed-in members.
471 Maple Ave is listed at $4,990,000 (MLS® X14129014). Summitly updates the price as soon as the MLS® record changes.
Summitly rates it Well Above Market: the asking price is 15% or more above Zara's estimate, an estimate built from recent sales in Grimsby. 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
No — 471 Maple Ave is still listed at its original asking price of $4,990,000.
471 Maple Ave has 5 bedrooms and 3 bathrooms, with about 2,000–2,500 square feet of living space. It is a detached home in Grimsby.
About $24,514 a month — principal and interest on $4,990,000 with 20% down ($998,000), 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.
Its asking price of $4,990,000 is about 590% above the median sold price in Grimsby over the last 90 days, $723,250, across 168 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.
Summitly has no earlier MLS® sale or lease of 471 Maple Ave on record from the last two years. Older records aren't shown under TRREB rules.
471 Maple Ave is in Grimsby, ON. Schools, transit, parks and shops nearby are under Location & lifestyle on this page.
471 Maple Ave was listed today (October 29, 2026).
About $1,996 to $2,495 per square foot: the asking price of $4,990,000 over the 2,000–2,500 sq ft the listing gives as its size range.
Yes — the listing gives 13 parking spaces. Garage: Yes.
The listing describes the basement as: Finished with Walk-Out.
