North Vancouver (District) Step Code Requirements

Current Step: 3+ | ACH Target: 2.5 ACH50 | Climate Zone: 4 | HDD: ~2,900 | Permit Office: dnv.org/building

Current Requirements

The District of North Vancouver (DNV) requires Step 3 or higher for all new Part 9 residential buildings. The DNV has been one of BC’s early Step Code adopters, voluntarily implementing Step Code requirements before the provincial mandate. Both the City of North Vancouver and the District have progressive energy policies, with the District in particular pushing toward higher performance standards.

Builders working on the North Shore should confirm which jurisdiction their project falls in, as the City of North Vancouver and the District of North Vancouver are separate municipalities with their own building departments and bylaws. This guide focuses on the District, which covers the larger geographic area and the majority of single-family residential construction on the North Shore.

Climate Zone 4 Context

North Vancouver sits in Climate Zone 4 with approximately 2,900 heating degree days. The North Shore receives more precipitation and slightly cooler temperatures than central Vancouver due to the proximity of the North Shore mountains, but remains firmly within the mild CZ4 range. This climate context means:

Manageable insulation requirements: Standard 2x6 wall assemblies with proper air sealing meet Step 3 without exotic wall systems
Rain screening is essential: North Vancouver receives some of the heaviest rainfall in Metro Vancouver, making robust rain screen wall assemblies and proper window flashing critical
Energy models favor the coast: Lower HDDs compared to Interior cities mean the energy model is more forgiving on insulation thickness
Moisture and air barriers overlap: In North Vancouver’s wet climate, the air barrier and moisture management strategies must work together

Compared to Interior cities like Kelowna (CZ5, HDD ~3,715), North Vancouver builders have a meaningful climate advantage for Step Code compliance. A design that passes comfortably on the North Shore will need upgrades to pass in the Okanagan.

Air Sealing: The Key Lever

Air sealing is the single most important factor in hitting the 2.5 ACH50 target at Step 3. North Vancouver’s wet climate adds an additional dimension: the air barrier often serves double duty as part of the moisture management strategy, so getting it right matters for both energy compliance and long-term durability.

Key areas to focus on:

Sill plate and foundation: Sealant or gasket at the sill plate, with attention to the transition from concrete to wood framing
Rim joist assemblies: Spray foam or sealed rigid foam, fully continuous with no gaps
Penetrations: Every pipe, wire, and duct through the air barrier needs individual sealing
Window and door rough openings: Proper air sealing integrated with the rain screen flashing system
Ceiling plane: Top-of-wall connections, pot lights, attic hatches, and any penetration through the top of the thermal envelope
Complex roof lines: North Vancouver’s hillside lots often produce complex roof geometries with more joints and transitions to seal

A pre-drywall air sealing test is strongly recommended, particularly on custom homes with complex geometries. Detailed guidance is available in our air sealing methods guide.

Permit Process

The District of North Vancouver follows the standard BC framework with some local enhancements:

Pre-construction: Energy advisor models the design using Lower Mainland weather data and produces a Section 9B compliance report
Permit application: Submit the energy compliance report with your building permit application to the District of North Vancouver Building Department
Mid-construction: Optional pre-drywall blower door test (recommended, especially for custom builds)
As-built: Final blower door test at 2.5 ACH50 and as-built compliance report required for occupancy

As an early Step Code adopter, the DNV building department has significant experience reviewing energy compliance documentation. Contact the District of North Vancouver Building Department for current requirements and any local amendments.

Rebates and Incentives

North Vancouver is served by BC Hydro for electricity and FortisBC for natural gas:

FortisBC: Up to $9,000 at Step 3, $15,000 at Step 4, and $20,000 at Step 5 through the hybrid heat pump pathway (full guide)
BC Hydro New Construction: Incentives for high-performance all-electric homes
CleanBC Better Homes: Provincial and federal incentives that stack with utility programs

North Vancouver’s high property values mean the incremental cost of building to Step 4 is a small percentage of total project cost, while the rebate value remains the same. The return on investment for exceeding the minimum is often strongest in high-value markets. Use our rebate calculator to estimate numbers for your North Vancouver project.

Looking Ahead: Step 4

Step 4 is expected province-wide in 2027, and the District of North Vancouver may move to higher requirements ahead of the provincial timeline given its history as an early adopter. The airtightness target will tighten from 2.5 to 1.5 ACH50, which is the most impactful change for builders.

In North Vancouver’s CZ4 climate, the insulation upgrades for Step 4 are modest. The challenge is the airtightness target. Builders who are already hitting 2.0 ACH50 or better at Step 3 will find the transition manageable. Those who are passing at 2.4 ACH50 will need to significantly improve their air sealing processes.

What Builders Should Do Now

Confirm your jurisdiction (City vs. District of North Vancouver) and check the current local requirements with the appropriate building department
Run a pre-drywall blower door test on your next project, particularly on custom hillside builds where complex geometries create more air leakage paths
Target Step 4 on one project to develop your 1.5 ACH50 process and access higher FortisBC rebates
Integrate air sealing with moisture management, because in North Vancouver’s wet climate, the air barrier and rain screen system must work together
Invest in air sealing methods training for your crews, focusing on the transition details and penetrations that determine whether you pass or fail the blower door test