18 Prospect Ave is a land in Guelph, listed for $599,900.
1A very rare building lot just steps away from St.
2Amazing opportunity to build a custom home in one of Guelph's most desirable neighbourhoods.
3Exceptional location on a quiet, mature street close to downtown shops and restaurants, great schools, the Go Train station, and numerous other amenities.
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Zara is an AI virtual agent. Advisors are licensed REALTORS® at Coldwell Banker Summit Realty, Brokerage.
Lots & Land in Guelph
About 18 Prospect Avenue
A very rare building lot just steps away from St. George's Park! Amazing opportunity to build a custom home in one of Guelph's most desirable neighbourhoods. Exceptional location on a quiet, mature street close to downtown shops and restaurants, great schools, the Go Train station, and numerous other amenities. Take advantage of the temporary HST rebate on all new construction homes PLUS the reduced development charges, with savings of over $150,000! If you have been considering a custom building opportunity within walking distance of downtown Guelph, this might be a great fit.
Guelph land priced at $599,900 — book a tour to see if it fits your search.
Inside 18 Prospect Ave
Every detail from the listing, in one place.
Type
Land
Features & systems
Lot & land
Lot size (sqft)
0
Listing & possession
Property class
Vacant Land
18 Prospect 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® X14112296$599,900
Sourced from MLS®. Includes earlier listings of this property on record.
What's it worth?
How 18 Prospect Ave Compares to the Guelph 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.
Independent mortgage broker · OAC · rates subject to change and underwritingMortgage Squad →
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
$2,947
/mo
based on the purchase price of $599,900
$119,980 cash
$479,920 financed
$404,219 total interest
Principal54%$479,920
Interest46%$404,219
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.
Average days on market38Homes sold in about 38 days on average.
Sale-to-list ratio97.6%On average, homes sold below asking.
Active listings657Homes for sale here right now.
Median vs prior 90 days+0.8%Compared with Apr 26 – Jul 25, 2026: prices up.
Based on 631 sales from Jul 25 – Oct 23, 2026 (442 in the prior 90 days). Aggregate MLS® figures for closed sales; individual sold prices are shown only to signed-in members.
18 Prospect Ave is listed at $599,900 (MLS® X14112296). Summitly updates the price as soon as the MLS® record changes.
Has the price of 18 Prospect Ave changed?
No — 18 Prospect Ave is still listed at its original asking price of $599,900.
How many bedrooms and bathrooms does 18 Prospect Ave have?
The listing for 18 Prospect Ave doesn't publish its bedroom and bathroom count. It is a lot in Guelph.
Is 18 Prospect Ave close to transit?
The nearest rapid-transit station is Guelph Central GO Station (Kitchener GO), about 740 m (about a 9-minute walk) in a straight line. Distances are straight-line, not walking routes; check the transit agency for routes and schedules.
How much would the monthly mortgage be on 18 Prospect Ave?
About $2,947 a month — principal and interest on $599,900 with 20% down ($119,980), 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 18 Prospect Ave compare with other homes in Guelph?
Its asking price of $599,900 is about 19% below the median sold price in Guelph over the last 90 days, $741,000, across 631 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 18 Prospect Ave been sold before?
Summitly has no earlier MLS® sale or lease of 18 Prospect Ave on record from the last two years. Older records aren't shown under TRREB rules.
Where is 18 Prospect Ave?
18 Prospect Ave is in Guelph, ON. Schools, transit, parks and shops nearby are under Location & lifestyle on this page.
How long has 18 Prospect Ave been on the market?
1 day — 18 Prospect Ave was listed on October 22, 2026.
What is the lot size of 18 Prospect Ave?
The lot is 50 acres, as published in the listing.
What is the land transfer tax on 18 Prospect Ave?
About $8,473 in Ontario land transfer tax at the asking price of $599,900. 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 18 Prospect Ave 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.
