Quilchena Park Estates

Richmond, BC

Part 9 Step Code 3 Emission Level 4 (EL4)

MEUI

0–0 kWh/m²·yr

Overall energy improvement

0–0%

Units / buildings

0 units / 0 buildings

Project Overview

Twenty-four three-storey townhouse buildings (≈110 units) at Moresby Drive, Richmond. Building Permit compliance targets were Step 3 (Part 9 performance) plus EL-4 for GHG emissions in Climate Zone 4. Models were developed in HOT2000 with proposed/reference per BCBC 2024 9.36.6 using 9.36.5 standards.

The study optimized envelope U-values and glazing SHGC/U-value, set airtightness targets (=2.5 ACH @50 Pa), and coordinated ground-source heat pump (GSHP) systems with ERVs and efficient electric DHW. Deliverables included Step Code checklists, EL-4 summaries, and permit-ready reports for each block.

Project Data

Building Type	Townhouses (Part 9)
Stage	Building Permit
Address	Moresby Drive, Richmond, BC
Buildings / Units	24 buildings, ≈110 units, TFA 12,565 m²
Compliance Path	BCBC 2024 9.36.6 performance using 9.36.5 reference
Targets	MEUI ≤55; TEDI ≤36; ≥20% energy improvement; ≥10% heat-loss reduction; EL-4 GHG
Envelope	2×6 walls w/ R24 batt; roof R30 polyiso; slab R15 XPS (heated)
Windows / SHGC	USI ≤1.40 W/m²·K; SHGC ≤0.28
Mechanical	Ground-source heat pumps (min COP 3.29; EER 16) + electric backup; ERV ~80% SRE; electric DHW (EF ≥0.92)
Software / Weather	HOT2000 v11.13 b43 / Vancouver, BC

Our Contribution

Whole-building energy model Multi-building Part 9 archetypes.
Parametric study FDWR/SHGC, U-values, airtightness, ASHP sizing.
Permit package inputs Step Code + EL4 documentation.

Key Results

MEUI range43–50 kWh/m²·yrAcross 24 buildings

TEDI range18–28 kWh/m²·yrArea-weighted per guideline

Overall energy improvement36–45%over 9.36.5 reference

GHG (EL-4)Meets EL-4 limits≤1.5 kg CO2e/m²·yr; ≤ units×500 kg CO2e

ComplianceBC Energy Step Code 3City of Richmond

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