How the bones read, decade by decade.

Why the era of construction matters

The City of Burnaby's housing stock spans roughly a hundred years, and each twenty-year window of that century is characteristic. Materials, structural standards, energy assumptions, layout conventions, and even lot geometry change era to era. When we look at an existing home, the age is the first variable we read — it tells us, before we walk inside, what the project is likely to look like.

The summary below is a generalization. There are exceptionally well-built 1970s homes and exceptionally poorly-built 1990s ones. But the patterns hold often enough to be useful as a starting frame.

The six eras we read

Each card below summarizes the bones, the typical issues, the most common decision tilt, and the practical notes we carry into the planning call.

What we actually look at on the walk-through

Once we know the era, the walk-through is the read on whether the typical pattern holds for this specific house. Six things we check, in order, on the first walk:

1. The foundation. Walk the perimeter from inside the basement or crawl space. Look for cracks, water staining, efflorescence, and any sign of settlement. The foundation determines whether renovation is even on the table.
2. The floor levels. Roll a marble. Standard ranchers that are out of level by 25 mm across a room signal framing movement. Less than that is normal aging; more than that is a structural conversation.
3. The wall and roof framing. Look at exposed framing where possible (basement ceiling, attic). Quality of original workmanship is the strongest predictor of whether the renovation will hit hidden issues.
4. The envelope. Window age, exterior cladding condition, evidence of past leaks. A 1970s home with original aluminum windows is getting all of those replaced regardless of which path the project takes.
5. The mechanical. Furnace, hot-water tank, electrical panel, water service. Almost always replaced on a major renovation; the question is just whether replacement is in scope.
6. The layout. Walk it as if you already lived there. Where do you eat, where do you work, where do the kids do homework, where do you put the car. The layout walk-through frames the wishlist more honestly than any conversation in the kitchen does.

Era-specific mistakes we see

Each era has a characteristic mistake owners make when they decide what to do with the house. Knowing the mistake doesn't always mean avoiding it — but it sharpens the conversation.

• — Pre-war: over-restoring. Spending heritage-restoration money on a house that wasn't formally designated, when an honest contemporary renovation would have served the owner better.
• — Post-war: renovating without expanding. The cramped rooms and low ceilings are the binding constraint; renovating without addressing them rarely closes the wishlist gap.
• — 1970s split: trying to make the half-storeys work. The split-level layout was a product of its era and rarely converts gracefully into a modern primary-suite-on-the-main configuration.
• — 1980s: renovating one room at a time. The envelope and mechanical needed simultaneously; sequential renovations end up costing more than one coordinated project.
• — 1990s: rebuilding when renovation would have served. The era's bones rarely demand rebuild; aesthetic preference dressed up as structural necessity is the trap.
• — 2000s: over-renovating. Tearing into structure that didn't need tearing into.

FAQ

Why does the decade of construction matter so much?

Each construction era used a characteristic structural system, a characteristic envelope assembly, and a characteristic mechanical layout. Those choices determine how renovation work actually proceeds — what comes apart easily, what doesn't, and where the hidden costs live. A 1920s home and a 1990s home of identical square footage produce wildly different renovation projects.

Are pre-war homes always worth preserving?

Architecturally and in neighbourhood-character terms, often yes. Structurally and energy-wise, it depends. Pre-war Burnaby homes built well — bungalows with full-depth dimension lumber framing, original Douglas-fir floors, lath-and-plaster walls — have bones that can outlast another century if the foundation is intact. The renovation cost is in the envelope upgrade and the mechanical replacement. The decision usually comes down to how much character preservation matters to the owner.

What's the biggest issue with 1950s post-war homes?

Two issues: undersized everything (rooms, ceilings, windows) and asbestos in original materials. The post-war housing boom built quickly to serve returning families, and the spaces feel cramped by modern standards. Asbestos in vermiculite insulation, pipe wrap, and original flooring requires abatement that adds cost and schedule to any renovation that opens walls. On the upside, the framing is usually sound and the foundation, while basic, is rarely defective.

Why do 1970s splits and ranchers come up for rebuild so often?

Three things converge. The original framing and footprint don't suit modern open layouts; the envelope is poorly insulated and uses original aluminum windows that leak air and heat; and most 1970s lots in Burnaby now have a large redevelopment delta under current zoning. Splits in particular are layout-trapped — the half-storeys that defined the era are hard to make work with modern primary-suite expectations.

Are 1990s homes ever rebuild candidates?

Rarely on bones alone. 1990s construction is typically structurally sound, envelope-functional (though below current Step Code), and dimensionally close to modern expectations. The rebuild conversation on a 1990s home is almost always driven by aesthetic preference or by a lot delta — the house itself is not asking to be torn down.

What about 2000s and newer homes?

Almost never rebuild candidates. Construction is generally sound, the envelope meets a closer-to-current standard, and the layout typically suits modern living. Most of these projects are renovations focused on kitchens, bathrooms, basements, and energy upgrades. A 2010s home being torn down for a new build is unusual enough that we treat it as a signal that something else is going on.

What about leaky-condo-era detached homes from the 1990s?

The leaky-condo crisis primarily affected multi-family construction, but some detached homes from the same period have envelope assemblies that don't drain well — face-sealed stucco over inadequate flashing, in particular. If the envelope is leaking on a 1990s detached home, the renovation conversation pivots from interior to envelope, and the cost gets serious. Worth confirming before assuming renovation is the cheap path.

How does heritage designation interact with the age decision?

A formal heritage designation forecloses the rebuild option without a Heritage Alteration Permit. Informal heritage clusters — Burnaby Heights, parts of Capitol Hill, the older streets of Vancouver — exert similar pressure even without designation, through neighbour opposition, character review, and the social cost of being the one who tore down the 1920s bungalow. Factor it in.