21 Water St W #4 is an office in Cornwall, listed for $395.
1OWNER OCCUPIED BUILDING Single office located in multi-tenanted Building in Downtown Cornwall across from Municipal Park, bike/walking trails & St Lawrence River.
2Cameron Real Estate Brokerage occupied part of this lower level space since 2005-2022, until relocating to the main floor of the building when the previous tenant vacated.
3Tenants Business Use must be approved by the Landlord.
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Commercial Property in Cornwall
Unit 4 at 21 Water Street West
OWNER OCCUPIED BUILDING Single office located in multi-tenanted Building in Downtown Cornwall across from Municipal Park, bike/walking trails & St Lawrence River. Cameron Real Estate Brokerage occupied part of this lower level space since 2005-2022, until relocating to the main floor of the building when the previous tenant vacated. Tenants Business Use must be approved by the Landlord. If your are looking for a smaller professional office in a quiet downtown location with lots of onsite parking, this office space may be an excellent option for any company looking for this type of remote office location in the Cornwall area. Rent includes property taxes, water/sewer, heat/electricity, snow removal & grass cutting. Tenant pays rent+HST plus their internet & telephone. Ample on-site parking. Available December 1/26 existing . Minimum 1 year lease term with restricted hours of business and rent just $395+ HST plus internet & telephone. Landlord requires 1 business day to deal with any/all offer to lease.
Cornwall office priced at $395 — book a tour to see if it fits your search.
Inside 21 Water St W #4
Every detail from the listing, in one place.
Type
Office
Features & systems
Lot & land
Lot size (sqft)
0
Listing & possession
Property class
Office
21 Water St W #4 Price & Sale History
Earlier listings of this property, list-price changes, and the most recent annual property tax on the listing.
For saleListedThis listingMLS® X14129884$395
Sourced from MLS®. Includes earlier listings of this property on record.
What's it worth?
How 21 Water St W #4 Compares to the Cornwall Market
Zara compares it with recent sales of similar homes nearby. It's a guide, not an appraisal.
Zara’s estimate
$•,•••,•••
Estimated from city-wide sales. There isn’t enough detail on this listing to rate the price.
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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.
Keep looking near 21 Water St W #4
Homes for sale in Cornwall
Every active Cornwall MLS® listing, updated all day.
Average days on market43Homes sold in about 43 days on average.
Sale-to-list ratio97.0%On average, homes sold below asking.
Active listings239Homes for sale here right now.
Median vs prior 90 days+4.3%Compared with May 2 – Jul 31, 2026: prices up.
Based on 274 sales from Jul 31 – Oct 29, 2026 (181 in the prior 90 days). Aggregate MLS® figures for closed sales; individual sold prices are shown only to signed-in members.
Questions About 21 Water St W #4
How much is 21 Water St W #4 listed for?
21 Water St W #4 is listed at $395 (MLS® X14129884). Summitly updates the price as soon as the MLS® record changes.
Has the price of 21 Water St W #4 changed?
No — 21 Water St W #4 is still listed at its original asking price of $395.
How many bedrooms and bathrooms does 21 Water St W #4 have?
The listing for 21 Water St W #4 doesn't publish its bedroom and bathroom count. It is a commercial property in Cornwall.
How does 21 Water St W #4 compare with other homes in Cornwall?
Its asking price of $395 is about 100% below the median sold price in Cornwall over the last 90 days, $417,000, across 274 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 21 Water St W #4 been sold before?
Summitly has no earlier MLS® sale or lease of 21 Water St W #4 on record from the last two years. Older records aren't shown under TRREB rules.
Where is 21 Water St W #4?
21 Water St W #4 is in Cornwall, ON. Schools, transit, parks and shops nearby are under Location & lifestyle on this page.
How long has 21 Water St W #4 been on the market?
21 Water St W #4 was listed today (October 29, 2026).
What is the land transfer tax on 21 Water St W #4?
About $2 in Ontario land transfer tax at the asking price of $395. First-time buyers can get up to $4,000 back. Legal fees and other closing costs are extra.
How do I book a viewing of 21 Water St W #4 or make an offer?
Select "Book a viewing" on this page and pick a time. A licensed Coldwell Banker Summit Realty, Brokerage agent confirms it with the listing brokerage. When you're ready, your agent prepares the offer with you and submits it to the listing brokerage.
What is the property tax for 21 Water St W #4?
The listing for 21 Water St W #4 doesn't publish the annual property tax. The property tax calculator linked at the foot of this page gives an estimate for Cornwall.
When was 21 Water St W #4 built?
The listing for 21 Water St W #4 doesn't publish a year built. A Summitly agent can ask the listing brokerage for it.
