This incredible lot on a dead-end street in Glen Williams is the perfect place for your forever home! This 4 bedroom, 2.5-bath home sits at the end of a quiet cul-de-sac and has a huge pie-shaped lot that is 217 ft wide across the back. This is the lot and location you've been waiting for! The home offers over 2,500 sq ft of finished living space, ample parking, and so much potential for the perfect family home. The main floor has a large living room with a fireplace, a dining room, a solid wood kitchen overlooking the treed backyard, an eat-in area plus a cozy family room with a fireplace, access to the 2-car garage and a walk-out to the patio. Upstairs offers a large primary bedroom with a 3-pc ensuite, three more great-sized bedrooms with double closets and a huge multi-use rec room! The exterior of this home is spectacular. There is ample green space in the huge private yard, a stone patio, a driveway that can fit 8 cars, and so much curb appeal! It is minutes from the GO, and everything Glen Williams and Georgetown has to offer.
4 bedrooms, 2 bathrooms, about 2,500 sq ft, works out to roughly $500 per square foot. Chat with Zara if you'd like a deeper read on whether this detached fits your budget and timing.
Inside 12 Mullen Pl
Every detail from the listing, in one place.
Type
Detached
Style
2-Storey
Living space
2500-3000 sq ftas stated on the listing
Parking
10 spacesYes garage
Basement
Full, Unfinished
Features & systems
Parking & garage
Garage
Yes
Parking spaces
10
Interior
Basement
Full · Unfinished
Lot & land
Lot size (sqft)
0
Listing & possession
Property style
2-Storey
Property class
Detached
12 Mullen Pl Price & Sale History
Earlier listings of this property, list-price changes, and the most recent annual property tax on the listing.
For saleListedThis listingMLS® W14102334$1,249,900
Sourced from MLS®. Includes earlier listings of this property on record.
What's it worth?
How 12 Mullen Pl Compares to the Halton Hills Market
Zara compares it with recent sales of similar homes nearby. It's a guide, not an appraisal.
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
$6,140
/mo
based on the purchase price of $1,249,900
$249,980 cash
$999,920 financed
$842,195 total interest
Principal54%$999,920
Interest46%$842,195
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.
Similar homes for sale nearby in Halton Hills
Other 3–4 bed homes for sale in Halton Hills around $1.2M.
Average days on market29Homes sold in about 29 days on average.
Sale-to-list ratio96.9%On average, homes sold below asking.
Active listings327Homes for sale here right now.
Median vs prior 90 days+3.3%Compared with Apr 25 – Jul 24, 2026: prices up.
Based on 266 sales from Jul 24 – Oct 22, 2026 (174 in the prior 90 days). Aggregate MLS® figures for closed sales; individual sold prices are shown only to signed-in members.
12 Mullen Pl is listed at $1,249,900 (MLS® W14102334). Summitly updates the price as soon as the MLS® record changes.
Is $1,249,900 a good price for 12 Mullen Pl?
Summitly rates it Excellent Deal: the asking price is 10% or more below Zara's estimate, an estimate built from recent sales in Halton Hills. 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
Has the price of 12 Mullen Pl changed?
No — 12 Mullen Pl is still listed at its original asking price of $1,249,900.
How many bedrooms and bathrooms does 12 Mullen Pl have?
12 Mullen Pl has 4 bedrooms and 2 bathrooms, with about 2,500–3,000 square feet of living space. It is a detached home in Halton Hills.
Is 12 Mullen Pl close to transit?
The nearest rapid-transit station is Georgetown GO Station (Kitchener GO), about 840 m (about a 11-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 12 Mullen Pl?
About $6,140 a month — principal and interest on $1,249,900 with 20% down ($249,980), 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.
Are there open houses at 12 Mullen Pl?
Yes — Saturday, October 24, 2:00 PM – 4:00 PM; Sunday, October 25, 2:00 PM – 4:00 PM. Open-house times come from the listing brokerage and can change, so check this page before you go, or book a private viewing.
How does 12 Mullen Pl compare with other homes in Halton Hills?
Its asking price of $1,249,900 is about 37% above the median sold price in Halton Hills over the last 90 days, $910,000, across 266 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 12 Mullen Pl been sold before?
Summitly has no earlier MLS® sale or lease of 12 Mullen Pl on record from the last two years. Older records aren't shown under TRREB rules.
Where is 12 Mullen Pl?
12 Mullen Pl is in Halton Hills, ON. Schools, transit, parks and shops nearby are under Location & lifestyle on this page.
How long has 12 Mullen Pl been on the market?
1 day — 12 Mullen Pl was listed on October 21, 2026.
What is the price per square foot of 12 Mullen Pl?
About $417 to $500 per square foot: the asking price of $1,249,900 over the 2,500–3,000 sq ft the listing gives as its size range.
