Ajax: questions buyers ask about the records
Each page names the public record that answers one question, where to read it yourself, and which OfferDue check reads it. What the records show, never advice.
Sources checked October 29, 2026
Ajax at a glance
The town's local rules as pictures, from our hand-kept tables of its by-laws and pages and from its flood page. Each tile opens the page with the full wording, its source and the date we checked it.
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Property tax
1.39% of assessed value, 2026 residential rate
Read the question →0%2.32% (Chatham-Kent)24th lowest of 61 towns. Lowest: Markham, 0.72%.
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Extra units
Up to 4 homes on a lot
Read the question → -
Conservation authorities in 2027
Read the question →Toronto and Region authorityCentral Lake Ontario authorityjoinCentral Lake Ontario Regional Conservation Authority
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A business run from home
- Up to 25%of the floor area
- 1 from outsidemay work there
Is an Ajax address in the Greenbelt?
The Province's Greenbelt boundary maps, with the Protected Countryside sheets and the Urban River Valley sheets for Carruthers Creek and Duffins Creek, and its interactive map.
In the free check and the full report.
How can I find recorded pits, quarries and petroleum wells near an Ajax home?
Two provincial records: the Find Pits and Quarries map of licensed and permitted aggregate sites, and the petroleum wells dataset of wells drilled for oil, gas, salt or underground storage.
In the free check and the full report.
How can I find mapped railways, power lines and pipelines near an Ajax home?
The Ontario Railway Network and the Ontario Utility Line dataset: provincial mapping of tracks and crossings, and of power lines, pipelines and other utility lines.
In the free check and the full report.
What records explain accessory dwelling units at an Ajax home?
Section 4.4 of Zoning By-law 95-2003, as amended by By-law 23-2025, and the parking table in its Section 5.
In the free check and the full report.
What does Ajax's tree by-law cover on a private lot?
The Town's Tree Protection By-law 137-2006 and Boulevard Tree Protection By-law 65-2021, as summarised on its trees page, and Durham Region's Regional Woodland By-law 30-2020.
In the free check and the full report.
What public rules cover short-term rentals in Ajax?
The Town's Short-Term Rental Maximum Occupancy By-law 85-2026 and its Municipal Accommodation Tax By-law 09-2025, with the Town's guidance for accommodation providers.
In the free check and the full report.
What is Ajax's residential property tax rate for 2026?
The Town's 2026 tax rate schedule, which lists the Town, Region and education rates for each property class.
In the free check and the full report.
Is an Ajax address in a regulated flood area, and whose map says so?
The Toronto and Region Conservation Authority's Regulated Area Search and Flood Plain Map Viewer, and the Central Lake Ontario Conservation Authority's regulation area mapping and Floodplain Mapping Tool, under Ontario Regulation 41/24.
Public source; flood plain and regulated-area checks not included in OfferDue reports.
Who helps with a home in Ajax
Every kind of business a home needs, by moment, and the local rules their work runs into, each with its source and the date it was checked.
Public-record information, not legal, financial, insurance or inspection advice. Records change and can be incomplete, and these pages describe the records, not any particular home. What we cover, city by city.