Multi-Unit Property Inspection — Every Unit Plus Shared Systems

I was standing in the basement of a 1970s split-level on Trafalgar Road last Tuesday when the seller's agent casually mentioned they'd been advertising this as a "turnkey rental opportunity" with a 4.8% cap rate. The musty smell hit me first, then I spotted the water stains along the foundation wall that someone had painted over with what looked like basic latex paint. You could practically hear the dollars evaporating from that projected return rate. Within twenty minutes, I'd found enough issues to turn that rosy investment pitch into a reality check worth about $23,000 in immediate repairs.

I've been inspecting homes in Oakville for fifteen years, and I can tell you that cap rate calculations are where most investors trip themselves up spectacularly. They take the asking rent, subtract some basic expenses like property taxes and insurance, then divide by the purchase price thinking they've got their return figured out.

What they don't factor in? The real costs of owning an older Ontario home that's going to house tenants who don't treat it like their own.

That Trafalgar Road property is a perfect example of what I see constantly in these 1960s to 1990s builds. The seller was asking $1.38 million, advertising potential rent at $3,200 monthly, and claiming investors could expect $38,400 in annual rental income. Subtract $8,400 for property taxes and $1,800 for insurance, and they're showing $28,200 in net income. Divide that by the purchase price and you get their magical 4.8% cap rate.

Here's what I found that wasn't in their math.

The electrical panel was original 1970s with some sketchy DIY additions that wouldn't pass a rental property inspection. I've seen this exact scenario probably fifty times, and you're looking at $4,200 minimum for a proper 200-amp upgrade. The furnace was pushing twenty-two years old with a heat exchanger that had maybe two winters left in it before tenants start complaining about cold spots and higher gas bills.

Guess what we found in the crawl space? Evidence of rodent activity and insulation that looked like it hadn't been touched since the Carter administration.

The kitchen had been "updated" with what I'd generously call builder-grade finishes that were already showing wear after three years. I always tell investors that rental kitchens take twice the beating of owner-occupied ones, and this laminate countertop already had chips and burns that would need addressing before any decent tenant would sign a lease.

But here's what really concerns me about these cap rate projections. Nobody's accounting for vacancy periods, and in my experience, these older Oakville rentals typically see at least six weeks of vacancy annually when tenants move out and you need to address all the deferred maintenance issues.

The basement had that telltale mineral staining around the floor drain that screams future water problems. I've never seen this pattern resolve itself, and when it finally fails, you're looking at emergency restoration costs that can hit $12,000 or more depending on how much flooring and drywall gets compromised.

Most investors budget maybe $1,000 annually for maintenance and repairs. That's laughable for a fifty-year-old house with original plumbing and electrical systems that are going to be stressed by rental use.

Here's my realistic breakdown for that Trafalgar property. Start with their $28,200 projected net income, then subtract $4,200 for the electrical upgrade you'll need within six months. Factor in $6,800 for the furnace replacement that's coming whether you like it or not. Add $2,400 for pest control and insulation work, plus another $1,800 for kitchen repairs before you can rent to anyone who isn't desperate.

That's $15,200 in immediate capital expenses that drops your first-year return to about $13,000. Now factor in realistic ongoing maintenance of $2,400 annually, vacancy losses of around $2,100, and property management if you're not planning to handle tenant calls yourself.

Your actual net income is probably closer to $8,500, giving you a real cap rate around 1.4%. Sound familiar?

I inspected another "investment opportunity" on Lakeshore Road in Old Oakville last month where the seller was advertising a 5.2% return. Beautiful 1960s brick bungalow, solid bones, but the moment I opened that electrical panel I knew someone was about to learn an expensive lesson. Federal Pacific breakers that insurance companies won't cover, knob-and-tube wiring still feeding two bedrooms, and a main service that would need complete replacement before any rental insurance policy would be issued.

The real surprise came when I checked the basement bathroom that had been "recently renovated." Professional-looking tile work, new vanity, the whole nine yards. But whoever did the work had connected the toilet flange directly to a cast iron pipe that was already showing stress fractures. I've seen this exact installation fail within eighteen months, usually at 2 AM when tenants call screaming about sewage backing up into the finished basement.

What I find most concerning is how these investment properties get marketed in spring when everything looks its best. It's April 2026, the weather's warming up, and sellers are staging these places to look like passive income goldmines. Buyers always underestimate how much these older systems deteriorate once you add the stress of rental occupancy and deferred maintenance.

That Glen Abbey duplex I inspected yesterday? Listed as a 4.6% cap rate opportunity, but I counted $31,400 in deferred maintenance just walking through once. The upstairs unit had laminate flooring that was already cupping from bathroom moisture, and the downstairs kitchen had a slow leak under the sink that had been "fixed" with a bucket and some towels.

I always tell my clients that real estate investment can work, but not when you're buying someone else's deferred maintenance and calling it cash flow. These 1970s and 1980s builds in Oakville can be solid investments if you go in with realistic expectations and a proper repair budget. But if you're chasing advertised cap rates above 4% in today's market, you're probably looking at someone else's problem disguised as an opportunity. Get a thorough inspection before you let those projected returns cloud your judgment, because I can guarantee you'll find expenses that weren't in the seller's math.