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425-427 William Street
East F London East N6B 3E1

$849,900 /For Sale
Commercial

Main Photo: 425-427 William Street in London East: East F Commercial for sale : MLS®# X12905428
Photo 1: 425-427 William Street in London East: East F Commercial for sale : MLS®# X12905428
Photo 2: 425-427 William Street in London East: East F Commercial for sale : MLS®# X12905428
Photo 3: 425-427 William Street in London East: East F Commercial for sale : MLS®# X12905428
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Photo 47: 425-427 William Street in London East: East F Commercial for sale : MLS®# X12905428
Status:
Active
Prop. Type:
Commercial
MLS® Num:
X12905428
Bus Major:
Other
425-427 William Street offers a rare opportunity to acquire a distinctive, fully functional multi-level commercial property in the heart of London with exceptional flexibility for future use. The building features unique architectural character highlighted by a rare central carriageway "tunnel" connecting both sides of the property and providing access to a centrally located accessible entrance with elevator. Spanning three levels, the property is configured with over 17 offices, 4 clinic rooms with sinks, multiple common areas, and 4 bathrooms, supporting a wide range of professional, medical, or institutional uses. The main floor includes a reception area, treatment rooms, accessible elevator vestibule, three entrances, and an accessible washroom. The second floor offers 8 offices, a full kitchen, separate men's and women's washrooms, and common space, while the third floor features 5 additional offices, a common area, and a 3-piece bathroom. A fully operational elevator (inspected 2026) and dual staircases provide efficient access throughout. Additional highlights include a flex space for an office, studio, or storage located in the rear yard, 4-6 parking spaces at the front with potential for more at the rear, and updated mechanicals including furnaces (~6 years) and recent fire system inspections (2026). Zoned BDC/OR (Business District Commercial / Office Residential), the property allows for a wide range of uses including offices, clinics, retail, restaurants, residential units, and mixed-use development, with strong potential for residential or live/work conversion into multiple units. Not heritage designated and located just outside the East Woodfield Heritage Conservation District, this is a rare opportunity to secure a high-functioning, well maintained century building with strong conversion and redevelopment potential in a central London location.
Property Type:
Commercial
Property Sub Type:
Office
Freestanding:
Yes
Total Area:
5856 sq. ft. Square Feet
Total Area:
5,856 sq. ft.
Office/Apt Area:
5856 sq. ft. Sq Ft
Lot Depth:
104'
Lot Frontage:
55'6"
Water supply:
Municipal
Zoning:
BDC OR
Heating type:
Gas Forced Air Open
Garage:
None
Parking Spaces:
6
Possession Details:
Flexible
HST Applicable To Sale Price:
In Addition To
Assessment Year:
2026
Type Taxes:
Annual
Taxes:
$0 / 2026
Assessment:
$- / 2026
Middlesex
London East
East F
No
none
none
Public
Utilities:
Yes
Air Conditioning:
Yes
Seller Property Info Statement:
No
Major Business Type:
Other
Category:
Office
Outside Storage:
Yes
Date Listed:
Mar 20, 2026
Original Price:
Previous Price:
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Listed by REAL BROKER ONTARIO LTD
Data was last updated November 12, 2026 at 06:15 AM (UTC)
Jason Froude,  REALTOR®
This website may only be used by consumers that have a bona fide interest in the purchase, sale, or lease of real estate of the type being offered via the website. The data relating to real estate on this website comes in part from the MLS® Reciprocity program of the PropTx MLS®. The data is deemed reliable but is not guaranteed to be accurate.