London, Ontario has experienced steady and significant residential growth, with numerous builders contributing to new subdivisions, infill developments, and condominium projects across the city. Using publicly available data from the Home Construction Regulatory Authority (HCRA), this list highlights the Top 10 most well-known home builders in London Ontario based on the number of completed freehold and condominium units as of November 2025.
It is important to note that the number of completed homes does not reflect quality, workmanship, or customer satisfaction. Some builders focus on large multi-unit or high-rise developments, naturally producing higher totals, while others specialize in smaller-scale or boutique projects. While the list is of the Top 10 well-known home builders in London Ontario is based on the completed projects, home buyers are encouraged to review each builder’s history, complaints, and licence status directly through the HCRA when evaluating their options.
Top 10 Most Well-Known Home Builders in London Ontario (Based on HCRA Completed Homes – November 2025)*
1. Tricar Properties - 1,833 Completed
Tricar is a prominent developer in London’s condominium market, responsible for many of the city’s mid-rise and high-rise buildings. Their portfolio includes large multi-unit projects, which contribute to their high number of completed homes. Tricar developments typically include modern amenity-focused residential towers throughout Southwestern Ontario. With over 1800 completed units, they are well-known home builders in London Ontario.
2. Ironstone Building Company - 1,338 Completed
Ironstone builds a wide range of freehold homes and townhomes across several London neighbourhoods. They have a strong presence in rapidly developing suburban areas, offering designs aimed at a variety of buyer demographics. Their broad geographic coverage helps explain their high total number of completions.
3. Foxwood Building Corporation - 510 Completed
Foxwood is active in multiple new subdivisions throughout London, developing both detached homes and townhome projects. Their communities often focus on attainable housing options and practical layouts. They contribute significantly to London’s low-rise housing stock.
4. Rembrandt Homes - 488 Completed
Rembrandt has been part of London’s residential construction industry for several decades. They build a mix of low-rise condominiums, townhomes, and freehold properties across established and emerging neighbourhoods. Their long-standing presence in the region contributes to their overall completion count.
5. Millstone Homes - 413 Completed
Millstone Homes is often known for their unique modern-design single-family homes and townhomes, often emphasizing contemporary architecture. They typically build in higher-end newer neighbourhoods across the City of London with builds in some of the most desired neighbourhoods of the City. Millstone homes have been part of the well-known home builders in London Ontario for many years.
6. Birchwood Homes - 387 Completed
Birchwood constructs single-family homes and townhomes across several of London’s newer subdivisions and some of London's most desired neighbourhoods. They are involved in multiple sites across the city, from single-family homes, townhomes, and custom luxury homes, providing home buyers with many options under Birchwood Homes. Their ongoing participation in London’s growth contributes to their completed-unit totals, and one of the reasons that they are one of the most well-known home builders in London Ontario.
7. Auburn Homes - 373 Completed
Auburn builds a variety of housing types, including stacked townhomes, traditional townhomes, and condominium-style developments. They operate in London as well as surrounding regions, which adds to their cumulative completion numbers. Their projects typically involve multi-unit residential communities.
8. Rockmount Homes - 340 Completed
Rockmount develops low-rise homes such as single-family houses and townhomes in family-oriented suburbs. They have constructed homes in multiple phases of established subdivisions. Their consistent activity across many years results in a strong overall total.
9. McKenzie Homes - 308 Completed
Mckenzie Homes participates in several new subdivisions across London, offering a mix of detached homes and townhome units. Their construction activity spans various parts of the city. The diversity of their projects contributes to their overall number of completions.
10. Johnstone Homes - 306 Completed
Johnstone Homes is a long-standing builder involved in the development of single-family homes and townhomes throughout London. They frequently build in growing suburban areas with multi-phase development plans. Their sustained involvement in local residential construction places them within the top ten based on completed units.
Important Considerations for Buyers Exploring Home Builders in London Ontario
Purchasing a newly built home can be exciting, but it also requires careful research to ensure buyers feel confident in their decision, especially with many options when it comes to home builders in London Ontario. One of the most important steps is understanding who regulates home builders in London Ontario.
The Home Construction Regulatory Authority (HCRA) is responsible for licensing builders and overseeing their conduct. Buyers can look up any licensed builder on the HCRA’s public registry, which provides valuable information such as licence status, complaint history, disciplinary actions, and overall performance. This transparency helps buyers make informed comparisons between builders and understand how each one has managed past projects. Using data from the HBCA I was able to determine the most well-known home builders in London Ontario.
Researching Builder Reputation and Protecting Your Investment
It’s equally important to ensure the builder is licensed. In Ontario, home builders and vendors must be licensed by the HCRA to legally construct and sell new homes. Working with a licensed builder helps ensure the project follows provincial construction standards, proper deposit handling, and consumer protection requirements. Alongside licensing, buyers should also familiarize themselves with Tarion, the organization that administers new-home warranties. Tarion provides coverage for defects in workmanship, materials, water penetration, and major structural components. Reviewing a builder’s Tarion warranty history can help buyers understand how effectively the builder handles repairs, service requests, and warranty obligations.
Beyond regulatory information, buyers should also consider homeowner feedback. Reading Google Business reviews, third-party testimonials, and past client experiences can offer insight into a builder’s communication style, service responsiveness, and overall customer satisfaction. While online reviews should be interpreted with balance, consistent patterns—positive or negative—are often useful when comparing multiple options. Visiting model homes and previously completed projects can also help buyers evaluate a builder’s finishing quality and design approach firsthand.
Many buyers choose to work with a Realtor when purchasing a new-build home, and for good reason. Realtors can help interpret builder contracts, explain subdivision plans, compare builders’ reputations, sift through the top home builders in London Ontario, and outline upgrade options or additional closing costs. They can also help buyers understand the long-term implications of lot location, future phases, community layout, and potential resale value. New-build agreements often include unique conditions, timelines, and allowances, so having professional guidance can make the process clearer and more manageable.
Finally, buyers should take time to thoroughly review floor plans, site plans, upgrade pricing, and community designs. Understanding what is included in a builder’s base model versus what is considered an upgrade helps avoid surprises and ensures buyers stay within budget. Touring model homes or past builds provides a clearer sense of how spaces function in real life and how the builder’s work holds up over time.
By combining regulatory information, warranty records, customer reviews, and professional guidance, buyers can approach the new-construction process with greater confidence and clarity. Considering buying a new home? Schedule a Consultation and discuss Home Builders in London Ontario with Austin D. Titus, a local Realtor in the City of London.