01Trois-Rivières, QC · tier 2 market
Low-rise office building cost in Trois-Rivières
A two to six storey office shell delivered to base-building standard: core, envelope, elevators and primary mechanical, with tenant space left open. Base building and tenant fit-out are separate budgets and should never be blended into one rate.
02The curated band
Hard cost, standard spec
$315/sf
Band $252 – $395
All-in, preset build
$476/sf
60,000 sf, 4 storey
Hard share of all-in
75%
Rest is soft cost, charges, contingency, escalation
QC escalation
3.5%/yr
Quarter ending 2025-09-30
Buildlor Construction Cost Index · Last updated 2026-01-15 · Maintained by Buildlor Cost Desk
Scope: Trois-Rivières, Quebec — Low-rise office building
Inputs: Altus Group Canadian Cost Guide 2025, Toronto base range; Statistics Canada Building Construction Price Index, table 18-10-0135-01
Next scheduled review: 2026-04-15
03Build the stack
Your build
All-in cost — Office (low-rise), Trois-Rivières
$28,584,192
$476/sf · band $22,539,958 – $36,409,317
At this specification the office (low-rise) prices at about $476 per square foot all-in, with a 49% spread between the low and high band. Hard cost is 75% of the total and everything above it is soft cost, charges, contingency and escalation.
| Line | Amount | $/sf |
|---|---|---|
| Substructure and foundations | $2,349,648 | $39/sf |
| Structure and frame | $4,699,296 | $78/sf |
| Envelope, roofing and glazing | $3,524,472 | $59/sf |
| Interior partitions and finishes | $2,741,256 | $46/sf |
| Mechanical and plumbing | $3,132,864 | $52/sf |
| Electrical and life safety | $2,153,844 | $36/sf |
| General conditions and fee | $979,020 | $16/sf |
| Site work and servicing | $1,762,236 | $29/sf |
| Hard cost subtotal | $21,342,636 | $356/sf |
| Design and consultants | $1,536,670 | $26/sf |
| Permits, approvals and reviews | $384,167 | $6/sf |
| Project management and testing | $768,335 | $13/sf |
| Financing, insurance and legal | $1,152,502 | $19/sf |
| Contingency (10%) | $2,518,431 | $42/sf |
| Escalation to midpoint (12 mo) | $881,451 | $15/sf |
| All-in cost | $28,584,192 | $476/sf |
How these figures were produced
- Observed — Recorded directly from the cited source series, unadjusted.
- Modelled — Derived arithmetically from observed inputs using the published method; not a market quote.
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04What moves the number
Cost drivers for this type in Trois-Rivières
Glazing ratio
a fully glazed curtain wall can double envelope cost against a punched-window precast facade.
Floor plate efficiency
a small plate spreads core, elevator and stair cost across less rentable area.
Parking
structured or underground parking is a separate cost per stall and often exceeds the building rate per square foot.
Base building versus fit-out
the shell rate assumes no tenant partitions, so price the fit-out separately.
Trois-Rivières' industrial work is dominated by conversion of former pulp and paper facilities. That is why the same drawings priced in Trois-Rivières and in Toronto do not land at the same number even when the trades are the same.
On the preset build above, hard cost is $21,342,636 and everything after it — soft cost, charges, contingency and escalation — adds $7,241,556. Budgeting off a hard rate alone is the single most common way an early construction budget goes wrong.
Buildlor facts
- Hard cost for a office (low-rise) in Trois-Rivières sits at $315 per square foot at standard specification.
- Soft cost at 18% of hard adds $3,841,674 to the preset build.
- QC construction escalation is running at 3.5% a year, or $881,451 over twelve months on this build.
05Related
Other types in Trois-Rivières
- Warehouse and distribution shellWarehouse · tier 1 topic
- Retail strip and plaza shellRetail strip · tier 1 topic
- Low-rise apartment buildingApartment (low-rise) · tier 1 topic
- High-rise apartment towerApartment (high-rise) · tier 2 topic
- Office tenant improvementOffice fit-out · tier 1 topic
- Retail tenant improvementRetail fit-out · tier 2 topic
- Medical and dental clinic fit-outMedical fit-out · tier 3 topic
06Questions
What does it cost to build a office (low-rise) in Trois-Rivières?
On the curated Trois-Rivières band, hard cost runs $252 to $395 per square foot for a office (low-rise) at standard specification. Adding site work, soft cost, charges, contingency and twelve months of escalation puts the all-in figure near $476 per square foot on a 60,000 sf preset. Your own area and specification change that number, which is what the builder above is for.
Why does Trois-Rivières price where it does?
Trois-Rivières' industrial work is dominated by conversion of former pulp and paper facilities. The published Toronto base range is scaled by a documented factor of 0.84 for this market, and the QC escalation series is running at 3.5 percent a year.
Is the development charge in this number?
No. We do not yet hold a charge row for Trois-Rivières. Enter the figure from the municipality's schedule in the builder.
What is excluded from every figure here?
Land, financing interest during construction beyond the soft-cost allowance, taxes recoverable as input credits, tenant furniture and equipment, and any remediation or off-site works. Those are separate line items in a real proforma.
07Sources
Sources
- [1] Altus Group Canadian Cost Guide 2025, Toronto base range — Published Toronto range scaled by a documented city cost factor of 0.84. Hard cost only: excludes land, soft costs, development charges and contingency.
- [2] Statistics Canada Building Construction Price Index, table 18-10-0135-01 — Non-residential building construction, Montreal CMA.
Not advice — Buildlor is a data publisher. We do not bid, price, estimate, or build work, and nothing here is a quote, a tender price, or construction advice. Figures are indicative order-of-magnitude benchmarks for early budgeting and must be confirmed by a qualified cost consultant, quantity surveyor, or general contractor before you rely on them. About Buildlor