Building Permits

curl "https://api.northaxiumdata.ca/api/v1/permits?municipality=toronto&permit_type_raw=demolition&sort_by=updated&limit=10" \
  -H "X-API-Key: <your-api-key>"

import requests

url = "https://api.northaxiumdata.ca/api/v1/permits"
headers = {"X-API-Key": "<your-api-key>"}
params = {
    "limit": 10,
    "municipality": "toronto",
    "permit_type_raw": "demolition",
    "sort_by": "updated"
}

response = requests.get(url, headers=headers, params=params)
print(response.json())

const fetch = require('node-fetch');

const url = new URL('https://api.northaxiumdata.ca/api/v1/permits');
url.search = new URLSearchParams({
  limit: '10',
  municipality: 'toronto',
  permit_type_raw: 'demolition',
  sort_by: 'updated'
});

fetch(url, {
  headers: {
    'X-API-Key': '<your-api-key>'
  }
})
  .then(res => res.json())
  .then(json => console.log(json));

{
  "data": [
    {
      "record_id": "BP-2023-88123",
      "municipality": "toronto",
      "province": "ON",
      "permit_number_raw": "23 123456 BLD 00",
      "source_reference": "23 123456 BLD 00",
      "issued_date": "2023-05-15",
      "permit_type": "new_construction",
      "permit_type_raw": "New Building",
      "estimated_cost": 4500000.00,
      "work_description": "New construction of office building",
      "applicant_name": null,
      "contractor_name": "Example Construction Ltd.",
      "zoning_raw": null,
      "last_updated": "2026-04-16T12:34:56"
    }
  ],
  "meta": {
    "total": 1,
    "limit": 10,
    "offset": 0,
    "municipality": "toronto",
    "sort_by": "last_updated",
    "sort_order": "desc",
    "proximity": null
  }
}

{
  "error": {
    "code": "BAD_REQUEST",
    "message": "Invalid parameter value."
  }
}

{
  "error": {
    "code": "UNAUTHORIZED",
    "message": "Missing API key. Pass your key in the X-API-Key header."
  }
}

{
  "error": {
    "code": "NOT_FOUND",
    "message": "The requested resource was not found."
  }
}

{
  "error": {
    "code": "RATE_LIMITED",
    "message": "Monthly request limit exceeded."
  }
}

GET

api

permits

curl "https://api.northaxiumdata.ca/api/v1/permits?municipality=toronto&permit_type_raw=demolition&sort_by=updated&limit=10" \
  -H "X-API-Key: <your-api-key>"

import requests

url = "https://api.northaxiumdata.ca/api/v1/permits"
headers = {"X-API-Key": "<your-api-key>"}
params = {
    "limit": 10,
    "municipality": "toronto",
    "permit_type_raw": "demolition",
    "sort_by": "updated"
}

response = requests.get(url, headers=headers, params=params)
print(response.json())

const fetch = require('node-fetch');

const url = new URL('https://api.northaxiumdata.ca/api/v1/permits');
url.search = new URLSearchParams({
  limit: '10',
  municipality: 'toronto',
  permit_type_raw: 'demolition',
  sort_by: 'updated'
});

fetch(url, {
  headers: {
    'X-API-Key': '<your-api-key>'
  }
})
  .then(res => res.json())
  .then(json => console.log(json));

{
  "data": [
    {
      "record_id": "BP-2023-88123",
      "municipality": "toronto",
      "province": "ON",
      "permit_number_raw": "23 123456 BLD 00",
      "source_reference": "23 123456 BLD 00",
      "issued_date": "2023-05-15",
      "permit_type": "new_construction",
      "permit_type_raw": "New Building",
      "estimated_cost": 4500000.00,
      "work_description": "New construction of office building",
      "applicant_name": null,
      "contractor_name": "Example Construction Ltd.",
      "zoning_raw": null,
      "last_updated": "2026-04-16T12:34:56"
    }
  ],
  "meta": {
    "total": 1,
    "limit": 10,
    "offset": 0,
    "municipality": "toronto",
    "sort_by": "last_updated",
    "sort_order": "desc",
    "proximity": null
  }
}

{
  "error": {
    "code": "BAD_REQUEST",
    "message": "Invalid parameter value."
  }
}

{
  "error": {
    "code": "UNAUTHORIZED",
    "message": "Missing API key. Pass your key in the X-API-Key header."
  }
}

{
  "error": {
    "code": "NOT_FOUND",
    "message": "The requested resource was not found."
  }
}

{
  "error": {
    "code": "RATE_LIMITED",
    "message": "Monthly request limit exceeded."
  }
}

Get a standardized list of building permits aggregated from municipalities, filterable by municipality, text search, permit metadata, and update window.

Query Parameters

integer

default:"100"

Maximum number of permits to return per request. Default: 100. Upper bound depends on your plan tier. Example: 25.

integer

default:"0"

Number of records to skip for pagination. Example: 50.

string

Filter permits by issuing municipality slug. Comma-separated values are accepted. Example: toronto, calgary.

string

Partial match across the permit search surface, including address, neighbourhood, work description, raw and canonical permit type, building type, and applicant or contractor names where available. Example: 123 King St.

string

One of new_construction, renovation, addition, demolition, change_of_use, or other. Example: new_construction.

string

Partial match on the municipality’s raw permit type or class text. Example: New Building.

string

One of issued, in_review, completed, cancelled, or expired. Example: issued.

string

Partial match on the normalized building or property type text. Example: residential.

string

Partial match on neighbourhood, ward, or district text where available. Example: Annex.

string

Partial match on applicant_name. Example: Smith Construction.

string

Partial match on contractor_name. Example: Smith Construction.

string

ISO 8601 start date. Example: 2023-01-01.

string

ISO 8601 end date. Example: 2023-12-31.

string

ISO 8601 start date for the record’s last_updated timestamp. Example: 2024-01-01.

string

ISO 8601 end date for the record’s last_updated timestamp. Example: 2024-12-31.

string

default:"date"

One of date, issued_date, application_date, updated, last_updated, published, value, or distance. distance requires lat, lng, and radius_km. Example: date.

For polling or incremental syncs, use sort_by=last_updated&sort_order=desc with updated_after set to your last successful sync timestamp.

string

default:"desc"

Either asc or desc. Example: desc.

number

Latitude for proximity search. Must be provided with lng and radius_km. Example: 43.6532.

number

Longitude for proximity search. Must be provided with lat and radius_km. Example: -79.3832.

number

Radius in kilometres for proximity search. Must be between 0.1 and 100. Example: 5.

curl "https://api.northaxiumdata.ca/api/v1/permits?municipality=toronto&permit_type_raw=demolition&sort_by=updated&limit=10" \
  -H "X-API-Key: <your-api-key>"

import requests

url = "https://api.northaxiumdata.ca/api/v1/permits"
headers = {"X-API-Key": "<your-api-key>"}
params = {
    "limit": 10,
    "municipality": "toronto",
    "permit_type_raw": "demolition",
    "sort_by": "updated"
}

response = requests.get(url, headers=headers, params=params)
print(response.json())

const fetch = require('node-fetch');

const url = new URL('https://api.northaxiumdata.ca/api/v1/permits');
url.search = new URLSearchParams({
  limit: '10',
  municipality: 'toronto',
  permit_type_raw: 'demolition',
  sort_by: 'updated'
});

fetch(url, {
  headers: {
    'X-API-Key': '<your-api-key>'
  }
})
  .then(res => res.json())
  .then(json => console.log(json));

Proximity search example

Find all permits within 2km of a coordinate:

curl "https://api.northaxiumdata.ca/api/v1/permits?lat=43.6532&lng=-79.3832&radius_km=2&permit_type=new_construction&sort_by=distance" \
  -H "X-API-Key: <your-api-key>"

import requests

url = "https://api.northaxiumdata.ca/api/v1/permits"
headers = {"X-API-Key": "<your-api-key>"}
params = {
    "lat": 43.6532,
    "lng": -79.3832,
    "radius_km": 2,
    "permit_type": "new_construction",
    "sort_by": "distance"
}

response = requests.get(url, headers=headers, params=params)
print(response.json())

const fetch = require('node-fetch');

const url = new URL('https://api.northaxiumdata.ca/api/v1/permits');
url.search = new URLSearchParams({
  lat: '43.6532',
  lng: '-79.3832',
  radius_km: '2',
  permit_type: 'new_construction',
  sort_by: 'distance'
});

fetch(url, { headers: { 'X-API-Key': '<your-api-key>' } })
  .then(res => res.json())
  .then(json => console.log(json));

Proximity search example

Find all permits within 2km of a coordinate:

curl "https://api.northaxiumdata.ca/api/v1/permits?lat=43.6532&lng=-79.3832&radius_km=2&permit_type=new_construction&sort_by=distance" \
  -H "X-API-Key: <your-api-key>"

import requests

url = "https://api.northaxiumdata.ca/api/v1/permits"
headers = {"X-API-Key": "<your-api-key>"}
params = {
    "lat": 43.6532,
    "lng": -79.3832,
    "radius_km": 2,
    "permit_type": "new_construction",
    "sort_by": "distance"
}

response = requests.get(url, headers=headers, params=params)
print(response.json())

const fetch = require('node-fetch');

const url = new URL('https://api.northaxiumdata.ca/api/v1/permits');
url.search = new URLSearchParams({
  lat: '43.6532',
  lng: '-79.3832',
  radius_km: '2',
  permit_type: 'new_construction',
  sort_by: 'distance'
});

fetch(url, { headers: { 'X-API-Key': '<your-api-key>' } })
  .then(res => res.json())
  .then(json => console.log(json));

Proximity search example

Find all permits within 2km of a coordinate:

curl "https://api.northaxiumdata.ca/api/v1/permits?lat=43.6532&lng=-79.3832&radius_km=2&permit_type=new_construction&sort_by=distance" \
  -H "X-API-Key: <your-api-key>"

import requests

url = "https://api.northaxiumdata.ca/api/v1/permits"
headers = {"X-API-Key": "<your-api-key>"}
params = {
    "lat": 43.6532,
    "lng": -79.3832,
    "radius_km": 2,
    "permit_type": "new_construction",
    "sort_by": "distance"
}

response = requests.get(url, headers=headers, params=params)
print(response.json())

const fetch = require('node-fetch');

const url = new URL('https://api.northaxiumdata.ca/api/v1/permits');
url.search = new URLSearchParams({
  lat: '43.6532',
  lng: '-79.3832',
  radius_km: '2',
  permit_type: 'new_construction',
  sort_by: 'distance'
});

fetch(url, { headers: { 'X-API-Key': '<your-api-key>' } })
  .then(res => res.json())
  .then(json => console.log(json));

{
  "data": [
    {
      "record_id": "BP-2023-88123",
      "municipality": "toronto",
      "province": "ON",
      "permit_number_raw": "23 123456 BLD 00",
      "source_reference": "23 123456 BLD 00",
      "issued_date": "2023-05-15",
      "permit_type": "new_construction",
      "permit_type_raw": "New Building",
      "estimated_cost": 4500000.00,
      "work_description": "New construction of office building",
      "applicant_name": null,
      "contractor_name": "Example Construction Ltd.",
      "zoning_raw": null,
      "last_updated": "2026-04-16T12:34:56"
    }
  ],
  "meta": {
    "total": 1,
    "limit": 10,
    "offset": 0,
    "municipality": "toronto",
    "sort_by": "last_updated",
    "sort_order": "desc",
    "proximity": null
  }
}

{
  "error": {
    "code": "BAD_REQUEST",
    "message": "Invalid parameter value."
  }
}

{
  "error": {
    "code": "UNAUTHORIZED",
    "message": "Missing API key. Pass your key in the X-API-Key header."
  }
}

{
  "error": {
    "code": "NOT_FOUND",
    "message": "The requested resource was not found."
  }
}

{
  "error": {
    "code": "RATE_LIMITED",
    "message": "Monthly request limit exceeded."
  }
}

Overview

Property Intelligence

Zoning

Building Inspections

Business Licences

Development Permits

Planning Applications

Building Permits

Query Parameters

Proximity search example

Proximity search example

Proximity search example

​Query Parameters

​Proximity search example

​Proximity search example

​Proximity search example

Query Parameters

Proximity search example

Proximity search example

Proximity search example