$849,900
For sale: 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.
Sold data
Other homes in London East (East F) took a median of 21 days to sell over the last 730 days, with the quickest quarter selling within 13 days and the slowest quarter taking more than 62, across 31 recorded sales.
That clock counts only the listing each home finally sold on. Measured from the first time these properties came to market, including any earlier listings that were withdrawn and re-entered, the median is 50 days.
The median sale price was $575,000.
Homes sold for about 2.2% below asking on average, so there was room to negotiate.
About 19% of sales closed above the list price.
Around 23% of sellers reduced their price before finding a buyer.
Based on 31 recorded sales in the last 2 years — a small sample, so treat these figures as indicative. Aggregate statistics only; individual sale prices are not shown.
Schools
London East (East F) has 116 Fraser Institute–rated schools (97 elementary and 19 secondary), averaging 5.5/10.
School ratings from the Fraser Institute's Ontario school report cards.
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