Canadian Consulting Engineer

Legal: Are prefabricated modular buildings lienable?

The vagaries of off-site construction are open to legal interpretation.

August 24, 2021  By Michael Arbutina and Catherine Phelps

modular building

Photo ©Colin Temple / Adobe Stock.

The construction lien is a powerful remedy in the nature of a charge against an interest in lands and premises to secure a preference of payment for services or materials supplied for an improvement. It ensures contractors and other professionals enjoy protection of payment for their contributions to a project.

The rules surrounding such liens are governed by the Construction Act, R.S.O. 1990, c C.30. The availability of the lien remedy is typically straightforward in cases where a contractor supplies materials or services at the construction site itself. However, other situations call into question the scope of lien rights under the Act.

If a home is built off-site in a modular prefabrication factory, for example, and subsequently installed at a construction site, do the contractors who worked on it enjoy lien rights in the land where the home is ultimately located? Do lien rights exist with respect to other modular structures, such as portable classrooms for schools?

As with all construction law matters, case law suggests the answer in any particular case will be both highly fact-driven and highly context-dependent.

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True chattels are not affixed to specific lands.

Three examples

In Hank’s Plumbing and Gas Fitting Ltd. v Stanhope Construction Ltd., the Alberta District Court considered—in 1978, for what appears to have been the first time—the availability of lien rights in relation to prefabricated modular structures.

In this case, the plaintiff performed work on modular homes that were constructed at the defendant’s factory. The homes were virtually finished in the factory, left the factory in two pieces and were assembled at their ultimate destination. The plaintiff only performed work on the homes in the factory.

The court held the plaintiff’s services were not lienable, as the homes had “all the attributes of a chattel.” Key to the court’s conclusion was the fact the owner of the homes could direct where the home would be installed. In other words, the homes had no connection to specific land and could be moved around at the direction of the owner.

Two years later, the Alberta Court of Queen’s Bench reached the opposite result in Aspen Lumber Co. v Depner. In this case, a contractor supplied lumber that was used to make pre-fabricated condominium sections (i.e. framing). The contractor cut the lumber at its own factory, while the building of the sections was completed at another factory.

The court held the contractor was entitled to a lien, notwithstanding the facts the contractor supplied services off-site and the framing was constructed off-site. The court distinguished the facts from the earlier Hank’s Plumbing case on the basis that (a) Hank’s Plumbing dealt with true chattels that were not affixed to the land, while (b) in this case, the prefabricated sections were manufactured with the specific land in mind.

Finally, in Inseco Ltd. (Trustee of), Re, a 1986 decision by the Ontario Supreme Court’s bankruptcy division held a contractor who assembled portable school buildings had no lien rights. In this case, the portables were delivered to the site completely finished and then installed on concrete blocks. The court observed the portables were self-contained units that could be moved from place to place, like a trailer or mobile home, and in this regard they resembled chattels more than anything else. Further, the school portables were not manufactured for a specific site and could be installed at any school at the direction of the school board.

Lien rights depend on the specific facts of each case.

Applying the nexus test

As these cases illustrate, the availability of lien rights in the context of prefabricated modular structures depends, in large part, on whether there is a connection to specific land.

If a structure is manufactured with no particular end destination in mind, it is considered a chattel that can be moved around at will. However, lien rights may exist where the structure is manufactured for specific land or in respect of a specific construction project.

The cases that have considered this issue are somewhat dated. A more modern ‘nexus test’ is now used to determine whether the supply of services or materials is lienable.

Pursuant to the nexus test, the supply of services or materials will give rise to lien rights where the construction parties and, particularly, the owner consider the subject services or materials necessary for the completion of the project, as well as where the services or materials benefit the majority of the contractors and subcontractors.

In applying this test in the context of prefabricated modular structures, it is clear, so long as there is a sufficient nexus between the contractor’s contribution and the project itself, the fact the services or materials are supplied off-site and in relation to a prefabricated structure will ultimately be a red herring. In the above-noted cases, the courts appeared to arrive at the correct results by focusing on the degree of connection between the contractor’s work and the lands in question.

Portable classrooms

Portable classrooms are a common example of modular prefabrication. Photo © CLSDESIGN / Adobe Stock.

Considering the context

Indeed, as all of the above makes clear, the availability of lien rights under the act is highly context-dependent. No two cases are alike and the specific facts of the case must be leveraged one way or another to prove or disprove the existence of lien rights.

Given the complex and technical nature of this area of law, consulting engineers and contractors are encouraged to seek legal counsel to understand the nature and scope of lien rights available to them. Moreover, the timelines for preserving and perfecting construction liens under the act are strict and show no mercy, requiring great caution and care.

Michael Arbutina is a partner and Catherine Phelps is an associate at Miller Thomson, based in Vaughan, Ont. For more information, contact them at marbutina@millerthomson.com and cphelps@millerthomson.com.

This column originally appeared in the July/August 2021 issue of Canadian Consulting Engineer.


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2 Comments » for Legal: Are prefabricated modular buildings lienable?
  1. Peter James says:

    “cement” blocks? In an engineering magazine?

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