Cold Creek · 8-Unit Back-to-Back What-If Calculator
Smart Estimator v2
3-Storey Deck The Poplar Deck 4-Way Matrix
Scenario Inputs
Quick Preset Scenarios
Building Geometry & Scale
Total Finished Area 11,510 sq ft
Unit Count (Block Doors) 8 units
Building Height 3 Storeys
Avg Unit Size: 1,439 sq ft Footprint: 3,837 sq ft
HVAC: 2.0-2.5T Base Elec: 100A Std
HVAC steps at 1,450 & 1,750 sf/unit · Electrical at 1,500 sf/unit
Specification & Tier Triggers
Interior Finish Quality
Energy & Envelope Tier
HVAC Heat Pump Capacity Auto (Smart)
Electrical Service Panel Auto (Smart)
Market Escalation & Timeline
Material Cost Escalation 0.0%
Labour Rate Escalation 0.0%
Build Schedule Duration 36 Weeks
Investment & Land Basis
Land Cost per Door $100,000
Total Land: $800,000 Total Project: $3,051,333
Parametric Construction Cost Model · Cold Creek Phase 1

Smart What-If Construction Budget Engine

Dynamic multi-driver estimating: area-scaled, unit-fixed, step-function capacity, and schedule-dependent cost models.
BASE BUDGET: $2,137,356.90 ($185.70/sf)
Total Construction Cost
$2,137,357
Hard + Soft Costs $0 (0.0%)
Cost per Square Foot
$185.70
Above-Grade Finished GFA $0.00/sf
Cost per Door / Unit
$267,170
Across 8 Block Units $0/door
Total Hard Costs
$1,642,195
$142.68/sf (w/ 3% Cont.) $0
Total Soft Costs
$495,162
$43.02/sf (w/ 2% Cont.) $0
Total Project Basis
$3,051,333
Construction + Land + Post-Close $381,417/door
💡
Smart Scaling in Action: When you modify square footage, Area-Dependent items (framing lumber, drywall, flooring, siding) scale proportionally. Meanwhile, Unit-Fixed items (cabinets, toilets, tubs, water meters) stay constant per door, naturally diluting $/sqft on larger blocks. Tiered Equipment (heat pumps & electrical panels) only jump when sqft crosses capacity thresholds.
Budget Allocation by Category
12 Hard + 1 Soft
Cost Driver Breakdown
6 Driver Types
📐 Area Proportional-
-
Framing, drywall, paint, flooring, siding, insulation. Scales with GFA.
🚪 Unit Fixed-
-
Cabinets, tubs, toilets, entry doors, water meters. Fixed per door.
🏗 Footprint / Roof-
-
Excavation, foundation, slab, shingles, landscaping. Scales with SqFt/Stories.
⚡ Tiered Capacity-
-
Heat pumps, electrical panels. Step triggers by sqft threshold.
⏱ Schedule Scaled-
-
Site supervisor, management overhead, temporary fuel, financing interest.
📑 Soft, Permits & DC-
-
Dev charges, permits, surveying, engineering, insurance, commissions.
2D Area vs Material Inflation Matrix (Total Construction $/sf)
Sq Ft \ Mat'l-10% MatBase (0%)+10% Mat+20% Mat
Interactive Line-Item Budget Explorer (123 Items)
Filter by trade category or cost driver. Edit any line item cost override directly in the table.
Category Task / Trade Description Cost Driver Base Budget What-If Cost $/Sq Ft Variance Scaling Logic / Reason

Scenario Comparison