Ottawa Development Charges 2026: Rates, Exemptions and What Changed

Ottawa is one of the fastest-growing major cities in Canada, and its development charges reflect that growth pressure. The City of Ottawa updated its DC by-law in late 2025, following a mandated Background Study. The revised rates took effect January 1, 2026 and represent a significant increase over the prior schedule for most residential unit types.

Unlike Toronto or Vancouver, Ottawa operates as a single-tier municipality, so there is no separate upper-tier (regional) DC on top of the city rate. What you see on the City's schedule is the total municipal charge. That said, certain areas within the city boundary are subject to area-specific charges for local servicing that are layered on top of the city-wide rate.

Ottawa 2026 DC Rates: Residential Summary

• Apartment (bachelor/1-bedroom): approximately $18,000–$22,000 per unit
• Apartment (2+ bedrooms): approximately $26,000–$32,000 per unit
• Semi-detached and townhouse: approximately $38,000–$48,000 per unit
• Single-detached dwelling: approximately $50,000–$62,000 per unit
• Second dwelling unit (accessory): reduced rate, approximately $9,000–$14,000

Note: Ottawa's by-law distinguishes between units in buildings with six or more storeys ("apartment") and those in smaller buildings. The two-or-more-bedroom apartment rate has historically been the most relevant benchmark for mid-rise intensification projects in inner-urban Ottawa.

ICI (Industrial, Commercial and Institutional) Rates

Ottawa charges ICI development on a per-square-metre of gross floor area basis, rather than per-unit. The 2026 ICI rates are approximately $90–$130 per square metre for office and commercial, $55–$75 per square metre for industrial, and $80–$120 per square metre for institutional, depending on sub-category. These rates are lower than Toronto or Vancouver equivalents, making Ottawa comparatively competitive for commercial intensification.

Area-Specific Charges in Ottawa

Ottawa's urban expansion areas, particularly in the south and west (Barrhaven, Kanata South, Riverside South, Leitrim), carry additional area-specific charges for local infrastructure not covered by the city-wide DC. These charges are assessed per unit and are in addition to the city-wide rate. Developers working in greenfield locations should confirm the applicable area-specific schedule for their specific land parcel, as these can add $5,000–$25,000 per unit on top of the base DC.

Exemptions and Reductions

Ottawa provides several exemptions and reductions that are directly relevant to residential intensification. First, affordable housing exemptions: units that meet Ottawa's affordability criteria (tied to CMHC median market rent) may qualify for a full or partial DC exemption. Second, accessory dwelling units (ADUs, garden suites, secondary suites) are charged at a reduced rate to encourage gentle density. Third, rental housing receiving capital funding from the federal Housing Accelerator Fund or CMHC co-investment programs may be eligible for additional local incentives under Ottawa's own affordable housing DC deferral program.

The Bill 23 Effect on Ontario DC Collections

Ontario's More Homes Built Faster Act (Bill 23), passed in late 2022, introduced restrictions on DC collection across Ontario, including Ottawa. These changes reduced DC revenue for municipalities and triggered significant debate about infrastructure funding gaps. Key Bill 23 changes included: mandatory exemptions for affordable and attainable housing units, reductions for rental housing (now partially restored), and phased-in increases rather than full DC recovery at permit.

The province subsequently reversed some of the most impactful provisions in 2023 and 2024, but the net effect on Ottawa's DC schedule was a compressed adjustment window. Ottawa's 2025 Background Study factored in this legislative history, and the 2026 by-law reflects a partial catch-up on deferred capital costs. Expect continued upward pressure on Ottawa DCs through the late 2020s as the city works through its capital program.

DC Payment Timing in Ottawa

Like most Ontario municipalities, Ottawa requires DC payment at building permit issuance. For phased projects, DCs are assessed by phase at the time each phase's permit is issued. Ottawa does offer a DC deferral program for eligible rental housing, allowing qualifying applicants to defer up to 100% of the DC obligation for 20 years at a prescribed interest rate. This program can meaningfully improve cash flow for rental developers operating under tight financing timelines.

What to Watch in 2026 and Beyond

Ottawa is actively expanding its Rapid Transit network (Stage 2 LRT extensions to Barrhaven and Orléans), and transit-oriented development around new station areas is a policy priority. The city has signalled interest in DC rebate or deferral programs for high-density residential near LRT stations, though formal programs are still in development. Developers pursuing projects adjacent to the Stage 2 LRT corridor should monitor Ottawa's planning department announcements closely for pilot incentive programs expected in 2026.