Kingsley Advisory Group
Independent construction and development advisory
Excerpted. Full Diagnostic delivered to clients. — Pieter
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Home addition / 2nd storey · Abbotsford, BC · Fraser Valley
pieter@kingsleyadvisorygroup.com
A full second storey above a 1970s Abbotsford rancher for $425,000 is achievable — the question is whether the $80,000 gap between your two quotes reflects scope, risk, or something missing on the lower side.
Health
72/100 — Workable. Designed scope, real quotes in hand, contingency set. Variance between quotes is the open question.
Biggest Risk
The $80,000 spread between contractors usually splits into roughly two-thirds scope difference, one-third risk allocation — until you know which, you're comparing two different jobs.
Watch
Mechanical is named as the difference, but mechanical alone rarely accounts for $80K on residential — there's likely scope or allowance variance hiding in the lower quote.
This is a defined project with real engineering behind it. You have an engineer's read on the foundation (some perimeter reinforcement required, but the structure holds), drawings the contractors are pricing against, two real quotes in hand, and a contingency line you actually entered rather than left blank. That puts you well ahead of where most homeowners are when they ask for a senior read. The number is workable for the scope, and the structural answer that gates so many additions like this has already been answered. What you're now in is a different question — not whether the project can be built, but who builds it and at what real cost.
72/100 means Workable — the project is real, the budget is in range, the engineering is in hand, and the open question is contractor-pricing variance rather than feasibility.
This assessment is based on partial data — designed scope and engineered foundation are firm, but I don't have line-item breakdowns from either quote.
The single condition driving this score is whether the $80,000 spread between contractors reflects scope, allowance, or risk allocation — and until that's resolved, the $425,000 budget could land at $425K or at $470K depending on which contractor you sign.
Primary Driver
The foundation answer is in. The drawings exist. The contractors have priced them. That puts you past the make-or-break feasibility moment that breaks most second-storey additions early. What's open now is a different kind of scope question — not "what are we building" but "are we pricing the same thing."
Three risks determine whether the dollars in this budget land where they need to. They are ranked by what each one would cost if it goes wrong.
1 — Most Critical
Two contractors $80,000 apart on the same drawings means at least one of them is pricing something different from what you think you're buying. Until both quotes are broken down line-by-line and compared side-by-side, you don't know which one is closer to the real cost. Signing either before that exercise is committing capital against a question you haven't asked.
EXPOSURE: $40,000–$80,000 — the cost of either change orders against the lower quote during construction, or paying for risk allocation in the higher quote that doesn't materialize. The expected value of the wrong call.
CONTINGENCY: Ask both contractors for a line-item breakdown to the same template before any conversation about price. Demand allowances be named — not "kitchen cabinetry: included" but "kitchen cabinetry allowance: $X." This is the single highest-leverage move on the file right now.
Forward Watch
The three signals that tell you a risk is moving before it costs you:
A quote breakdown coming back with allowances bundled into "included" rather than line-item dollar values — that's where the spread is hiding.
The lower contractor declining to provide their mechanical scope in writing — that's the missing scope showing itself.
The energy advisor's report naming Step 4 for the new envelope rather than Step 3 — that's the Step Code line waking up.
My read is that you're in a much better seat than most homeowners I see at this stage, and the work in front of you isn't structural — it's procurement. The engineering is in hand, the drawings exist, the budget is sized correctly for what you're building. What you have now is the classic problem: two contractors $80,000 apart, both telling you they're pricing the same job, and no easy way to know which one is right.
Second-storey home addition · Entitlement · Fraser Valley
What we see most often at this stage. Patterns that separate projects that work from projects that don't.
Ready to begin
Free read. Reviewed by Pieter before release. No commitment beyond a real look at where the project stands.