Front of 78 William Street W
78 William Street WWaterloo
Expired
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Ontario Real Estate › Waterloo
Front of 78 William Street W
78 William Street WWaterloo
Expired
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DetachedMLS X12479013
Last asked:Expired Jan 19, 2026
$1,599,000
5 Bedrooms
2 Bathrooms
1 Garage
2.5K~3K Sq.Ft.
66 x 329 ft Lot
$8,602 Tax/yr

Property history

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About this home

78 William Street W, Waterloo

HALF AN ACRE IN UPTOWN WATERLOO! Live grand and sever, or develop. Welcome to 78 William St W, a stately and elegant 5- bedroom home in Waterloo's coveted Westmount neighborhood, just two blocks from Uptown conveniences and the Region's new LRT. Thoughtfully updated while retaining its original character, the home features gracious principal rooms ideal for both everyday living and entertaining. The spacious living and dining areas flow seamlessly, enhanced by large bay windows that flood the space with natural light and showcase beautiful architectural details-including original marble fireplaces that add timeless sophistication. The bright, functional kitchen offers ample storage and prep space, while the adjacent sunroom overlooks the expansive backyard and gardens-a peaceful spot for morning coffee or unwinding at the end of the day. Upstairs, you'll find five generously sized bedrooms, each with ample closet space, providing comfort and flexibility for families, guests, or work-from-home needs. Outside, the half-acre lot is a true highlight-offering privacy, mature trees, and abundant green space for recreation, gardening, or future development. Initial planning work has been completed to allow for lot severance, creating the potential to sell part of the land, build a custom home, or develop an investment property. Zoning also permits the construction of up to three Additional Dwelling Units (ADUs) in total. Whether you're seeking a distinctive family home with historic charm or a property with outstanding future potential, 78William St W presents a rare opportunity in one of Waterloo's most desirable neighbourhoods.

OtherWater HeaterCityArts CentreHospitalLibrary

Facts & features

TypeDetached
Style2-storey
Built100+
Size2.5K~3K Sq.Ft.
Lot66 x 329 ft
Tax$8,602 (2024)
HeatingRadiant, gas
BasementFull, unfinished
Parking9 drive
WaterMunicipal
FireplaceYes

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Rooms

12 rooms · 2 bathrooms
Main floor5 rooms
  • Dining room17′4″ × 16′9″290 sq.ft.
  • Family room16′11″ × 12′5″210 sq.ft.
  • Kitchen17′4″ × 19′8″340 sq.ft.
  • Living room16′3″ × 21′6″349 sq.ft.
  • Sunroom18′1″ × 12′2″220 sq.ft.
Second floor5 rooms
  • Bedroom8′3″ × 15′1″124 sq.ft.
  • Bedroom8′5″ × 15′9″133 sq.ft.
  • Bedroom11′11″ × 9′11″118 sq.ft.
  • Bedroom16′2″ × 21′2″342 sq.ft.
  • Primary bedroom17′5″ × 14′5″251 sq.ft.
Basement2 rooms
  • Other7′1″ × 6′5″46 sq.ft.
  • Utility room16′9″ × 11′3″189 sq.ft.
Bathrooms2
3-pcSecond2-pcMain
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Around this home

Westmount Rd S
6Walking

Schools nearby

School rating, out of 10.

Our Lady of Lourdeselementary · Private · 0.5 km
6.5/10
Empireelementary · Public · 0.8 km
6.6/10
Westmountelementary · Public · 1.1 km
6.7/10

Listing details

MLS® numberX12479013
Listed onOct 23, 2025
Days on market88
UpdatedJan 19, 2026
Listing brokerageCORCORAN HORIZON REALTY
PossessionFlexible

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