




This office in London East offers 5,856 sqft of building area. The property has lot dimensions of Bldg=55.5 x 104 FT, cross street William Street at Dundas, zoned BDC OR. The home features forced air, natural gas heating, fully air conditioned.
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. (id:60351)
We can help you find properties matching your criteria, including exclusive listings not yet on the market.
Save favorites, track showings, view sold data & get market alerts — Free account — 100% free
none
Listed by RYAN HILKER, REAL BROKER ONTARIO LTD
The listing data displayed is deemed reliable but is not guaranteed accurate by the Canadian Real Estate Association (CREA). 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 trademarks MLS®, Multiple Listing Service® and the associated logos are owned by The Canadian Real Estate Association (CREA) and identify the quality of services provided by real estate professionals who are members of CREA.
Not A Dream Realty Inc., Brokerage is a member of CREA and the Toronto Regional Real Estate Board. All information should be independently verified. © 2026 Not A Dream Realty Inc., Brokerage. All rights reserved.
Important notice: This website provides free general real estate information for consumer convenience. Listing data, maps, photos, descriptions, measurements, room sizes, lot sizes, taxes, prices, availability, school/market information, estimates, and other property details may be incomplete, delayed, approximate, generated from third-party sources, or changed without notice. We do not warrant that any information is complete, current, or error-free, and we have not independently verified all information shown. Do not rely on this website alone when making a purchase, sale, lease, financing, investment, tax, legal, valuation, or insurance decision. Verify all material facts directly with the listing brokerage, real estate board, municipality, lender, insurer, lawyer, inspector, surveyor, or other qualified professional, as applicable. Nothing on this website is an appraisal, market valuation, price opinion, professional recommendation, or legal, financial, tax, engineering, inspection, or investment advice. To the fullest extent permitted by law, the website operator, brokerage, and their representatives are not responsible for losses or damages arising from errors, omissions, delays, changes, or reliance on information displayed here.
Get in touch for a private showing or more details.
Listing represented by RYAN HILKER, REAL BROKER ONTARIO LTD · MLS# X12905428
For illustration purposes only. Consult a mortgage professional for accurate rates.
Disclaimer: The mortgage estimates and monthly cost calculations shown above are for illustrative purposes only and should not be relied upon as financial advice. Actual mortgage rates, terms, and eligibility depend on your personal financial situation, credit history, and current market conditions. Please consult a licensed mortgage broker, financial advisor, or your bank to determine your actual affordability and mortgage costs before making any purchasing decisions.
Estimate based on Ontario LTT rates. Consult your lawyer for exact amounts.