Interior area as the listing states it. It does not say whether the figure was measured on site or taken from builder plans.
Property type
Commercial
The listing does not state a style.
Second dwelling
The listing does not say whether there is a second dwelling unit here. Other records in this set state it either way, so this is a silence rather than a no.
Counts and measurements as the listing states them, not verified by us. MLSSource: MLS
$849.9KFor Sale
425-427 William Street, London East, ON · 5,856 sqft
Three parties produce a dollar figure for this house, for three different purposes, so they do not agree and were never meant to. The gaps are worked out here rather than left for you to hold in your head.
Asking price
$849,900
Set by the seller and their brokerage. It is a request, and nothing tests it until an offer arrives.
MLSSource: MLS
Our estimate
Not licensedOur estimate: Not shown: our current listing agreement does not licence this figure for display.
Modelled from comparable sales by the explorer further down this page. Change the comparables there and this number moves, which is the reason it is shown at all.
Est.Modelled from comparable sales, not an appraisal
Assessed value
Nothing of this kind on the record, and nothing here fills it in from an average of other houses.
The figure property tax is apportioned from, valued as of a date that is not today. It is not a market value and no lender treats it as one.
MLSSource: MLS
Price per square foot
$145
asking price over 5,856 sqft, an area the listing does not source
Days on market
N/A
no area average shown: our current listing agreement does not licence market statistics
None of these is an appraisal. Your lender orders one of those once an offer is accepted, and it is the figure that decides how much they will actually lend.
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.
Written by the listing brokerage to sell the house. Nothing in it is verified, so take its claims about condition to an inspection, not from it.
MyNest360 estimate
Our estimate for this listing is not shown here
Not shown: our current listing agreement does not licence this figure for display.
The estimate is built by weighing recent comparable sales, and sold comparables for a specific property are licensed to registered users only. It is withheld rather than approximated: an estimate with the sales taken out of it would be a number with nothing behind it.
Price and listing history
This listing's price and status history is not shown here
Not shown: our current listing agreement does not licence this figure for display.
Prior asking prices, terminations and relists are licensed to registered users only, and there are no accounts on MyNest360 yet. Nothing here should be read as evidence that the current price is the only price this house has been offered at.
Property details
MLSSource: MLS
Type
Commercial
Living area
5,856 sqft
Lot size
56 by 104 ft
Status
For Sale
Occupancy
Vacant
Interior and systems
MLSSource: MLS
Heating
Gas Forced Air Open
Cooling
Yes
Location and neighbourhood
MLSSource: MLS
Market trend
Neighbourhood market statistics is not shown here
Not shown: our current listing agreement does not licence this figure for display.
Medians, sale-to-list ratios and absorption are computed from sold prices, and they are licensed to registered users only. There is no approximate version of a median that would be honest to show in their place.
