---
title: "Building and Renovating in Whitby, Ontario"
url: "https://www.jarviscontracting.ca/areas/whitby"
description: "Permit fees, development charges, additional unit rules and the conservation authority in Whitby, Ontario, each linked to its source and dated."
publisher: "Jarvis Contracting"
---
# Building and renovating in Whitby

Permit fees, development charges, additional unit rules and the conservation authority in Whitby, Ontario, each linked to its source and dated.

- Municipality: Town of Whitby
- Region: [Durham Region](https://www.jarviscontracting.ca/areas/durham-region)
- Includes: Brooklin, Downtown Whitby
- Facts checked: 2026-10-06

## What Jarvis Contracting builds in Whitby

- [Home additions](https://www.jarviscontracting.ca/home-additions/whitby)
- [Second-storey additions](https://www.jarviscontracting.ca/second-storey-additions/whitby)
- [Basement renovations](https://www.jarviscontracting.ca/basement-renovations/whitby)
- [Whole-home renovations](https://www.jarviscontracting.ca/whole-home-renovations/whitby)
- [Kitchen renovations](https://www.jarviscontracting.ca/kitchen-renovations)
- [Bathroom renovations](https://www.jarviscontracting.ca/bathroom-renovations)
- [Architectural design and permit drawings](https://www.jarviscontracting.ca/architectural-design)
- [Design-build](https://www.jarviscontracting.ca/design-build)

## Design-build in Whitby

- [Design-build](https://www.jarviscontracting.ca/design-build)

## Applying for a permit in Whitby

| Item | What applies | Source | Checked |
|---|---|---|---|
| Where to apply | Whitby E-Portal (portal.whitby.ca) | [www.whitby.ca](https://www.whitby.ca/services-and-payments/building-and-renovating/building-permits/) | 2026-10-05 |
| Phone | 905.430.4305 | [www.whitby.ca](https://www.whitby.ca/services-and-payments/building-and-renovating/) | 2026-10-05 |
| Email | building@whitby.ca | [www.whitby.ca](https://www.whitby.ca/services-and-payments/building-and-renovating/building-permits/) | 2026-10-05 |
| Fee by-law | Schedule N to By-law #7220-17, Building Services Fees, effective January 1, 2026 | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/5aqjt5ww/2026-building-permit-fees-schedule-n.pdf) | 2026-10-05 |
| Local service level | Inspection requests received by 3 p.m. can be scheduled for the next business day | [www.whitby.ca](https://www.whitby.ca/services-and-payments/building-and-renovating/building-permits/) | 2026-10-05 |
| Permit decision time (Ontario) | 10 days for a house where no dwelling unit is located above another dwelling unit (except retirement homes), and for a detached structure serving it up to 55 m² building area | [www.publications.gov.on.ca](https://www.publications.gov.on.ca/301880) | 2026-10-05 |

## Building permit fees

| Item | What applies | Source | Checked |
|---|---|---|---|
| New house permit fee | $22.37 per m2 | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/5aqjt5ww/2026-building-permit-fees-schedule-n.pdf) | 2026-10-05 |
| Addition permit fee | $22.37 per m2 | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/5aqjt5ww/2026-building-permit-fees-schedule-n.pdf) | 2026-10-05 |
| Interior alteration permit fee | $10.65 per m2 | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/5aqjt5ww/2026-building-permit-fees-schedule-n.pdf) | 2026-10-05 |
| Basement finish permit fee | $10.65 per m2 (charged as a house alteration; Whitby's schedule has no separate basement line) | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/5aqjt5ww/2026-building-permit-fees-schedule-n.pdf) | 2026-10-06 |
| Additional residential unit permit fee | $10.65 per m2 | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/5aqjt5ww/2026-building-permit-fees-schedule-n.pdf) | 2026-10-05 |
| Accessory building permit fee | $10.65 per m2 | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/5aqjt5ww/2026-building-permit-fees-schedule-n.pdf) | 2026-10-05 |
| Deck | $305 flat | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/5aqjt5ww/2026-building-permit-fees-schedule-n.pdf) | 2026-10-05 |
| Minimum permit fee | $305 flat | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/5aqjt5ww/2026-building-permit-fees-schedule-n.pdf) | 2026-10-05 |
| Plumbing, per fixture | $27.80 per fixture | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/5aqjt5ww/2026-building-permit-fees-schedule-n.pdf) | 2026-10-05 |
| Below-grade entrance | $305 flat | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/5aqjt5ww/2026-building-permit-fees-schedule-n.pdf) | 2026-10-05 |
| Demolition | $305 flat | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/5aqjt5ww/2026-building-permit-fees-schedule-n.pdf) | 2026-10-05 |
| Work started before applying for a permit | Greater of $100 or 25% of application fee | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/5aqjt5ww/2026-building-permit-fees-schedule-n.pdf) | 2026-10-06 |
| Work started after applying, before the permit is issued | Greater of $100 or 15% of application fee | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/5aqjt5ww/2026-building-permit-fees-schedule-n.pdf) | 2026-10-06 |
| Additional unit registration | $268 flat | [www.whitby.ca](https://www.whitby.ca/services-and-payments/building-and-renovating/additional-dwelling-units/) | 2026-10-05 |

Fees as the municipality's 2026 schedule prints them. A rate with no single number shows the rule instead.

## Development charges on a new house

| Item | What applies | Source | Checked |
|---|---|---|---|
| Whitby (municipal) | $53,022 | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/vhybb2uv/development-charges-rate-schedule-2026-02-01.pdf) | 2026-10-05 |
| Durham Region (regional) | $76,227 | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/durham-ca/media/vybhyyp2/durham-region-wide-development-charge-information-jul-1-2026.pdf) | 2026-10-05 |
| School boards (education) | $7,535 | [media-002-ca.cdn.govstack.com](https://media-002-ca.cdn.govstack.com/pickeringca-009-ca/media/wl4en3hp/developmentcharges_citywide_2026-2027final.pdf) | 2026-10-05 |
| Municipal, regional and education added up | $136,784 (our sum of the parts above; not a figure the municipality publishes) | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/vhybb2uv/development-charges-rate-schedule-2026-02-01.pdf) | 2026-10-05 |
| Additional units | Town and Region DCs do not apply to an ADU in an existing home or in a new home being built if it meets O.Reg 454/19; EDCs still apply to detached ADUs and to ADUs in homes occupied under 12 months | [www.whitby.ca](https://www.whitby.ca/services-and-payments/building-and-renovating/additional-dwelling-units/) | 2026-10-05 |
| Note | Non-rental residential DCs may be deferred from permit issuance to occupancy (Bill 17); occupancy permits now mandatory and inspections within 10 business days | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/5r2haror/building-services-division-bulletin-2026-01-development-charge-deferrals-002.pdf) | 2026-10-05 |
| Note (2) | Whitby indexes its DCs February 1; DDSB/DCDSB May 1; Region July 1 | [www.whitby.ca](https://www.whitby.ca/services-and-payments/building-and-renovating/development-charges/) | 2026-10-05 |
| Note (3) | ADU Incentive Program (Housing Accelerator Fund) reimburses select fees for ADU permits issued on/after April 1, 2024; complete application by Dec 31, 2026; ADU registered by March 31, 2027 | [www.whitby.ca](https://www.whitby.ca/services-and-payments/building-and-renovating/additional-dwelling-units/) | 2026-10-05 |
| Additions to an existing house (Ontario) | Enlarging an existing residential unit (e.g., an addition) does not trigger development charges | [www.ontario.ca](https://www.ontario.ca/laws/statute/97d27) | 2026-10-05 |
| When charges are paid (Ontario) | Since Nov 3, 2025, DCs on residential development (other than rental) are paid in full at the earlier of occupancy permit issuance or first occupancy, instead of at building permit | [www.ontario.ca](https://www.ontario.ca/laws/statute/97d27) | 2026-10-05 |

Per single or semi-detached house, rates as of 2026-07-01.

## Zoning and minor variances

| Item | What applies | Source | Checked |
|---|---|---|---|
| Zoning by-law | Three zoning by-laws: 2585 (Downtown Whitby), 1784 (former Township of Whitby, incl. Brooklin), 5581-05 (Oak Ridges Moraine); comprehensive new by-law targeted 2025/27 | [www.whitby.ca](https://www.whitby.ca/business-and-economy/planning-and-development/zoning/) | 2026-10-05 |
| Lot coverage (typical residential zone) | 20% (R1, R2, R3 zones, By-law 1784 Schedule A) | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/orfb0rfx/1784_zoning-by-law_2025_consolidation-accessible.pdf) | 2026-10-05 |
| Height (typical residential zone) | 8.5 m (R1, R2, R3 zones, By-law 1784 Schedule A) | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/orfb0rfx/1784_zoning-by-law_2025_consolidation-accessible.pdf) | 2026-10-05 |
| Lot coverage and rear yard by storey (R1A*, R2A*, R2B*, R2C* zones) | In the R1A*, R2A*, R2B* and R2C* zones (By-law 1784 ss.5B to 5E) maximum lot coverage drops and the minimum rear yard rises once a house is more than one storey: coverage 40% for one storey and 33% above in R1A* and R2A*, 45% and 40% in R2B* and R2C*; rear yard 7.5 m to any one-storey part of the house and 10.0 m to any part over one storey | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/orfb0rfx/1784_zoning-by-law_2025_consolidation-accessible.pdf) | 2026-10-06 |
| Minor variance (Committee of Adjustment) fee | $1,526 flat | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/txxlnw3w/pl-application_minorvariance.pdf) | 2026-10-05 |
| Committee of Adjustment: hearings | Hearings on the third Thursday of each month (2026: 15 January to 17 December) | [www.whitby.ca](https://www.whitby.ca/business-and-economy/planning-and-development/planning-applications-and-guidelines/committee-of-adjustment/) | 2026-10-06 |
| Committee of Adjustment: submission deadline | About 5.5 weeks before the hearing: the 2026 table sets each deadline 37 to 41 days ahead (usually 38, a Monday), not the 'three weeks' the page's text says | [www.whitby.ca](https://www.whitby.ca/business-and-economy/planning-and-development/planning-applications-and-guidelines/committee-of-adjustment/) | 2026-10-06 |
| Committee of Adjustment | Applications, schedule and decisions | [www.whitby.ca](https://www.whitby.ca/business-and-economy/planning-and-development/planning-applications-and-guidelines/committee-of-adjustment/) | 2026-10-05 |

## Additional units: basement apartments, garden suites, coach houses

| Item | What applies | Source | Checked |
|---|---|---|---|
| Homes allowed on one lot | 4, the house included | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/orfb0rfx/1784_zoning-by-law_2025_consolidation-accessible.pdf) | 2026-10-05 |
| Detached unit size | max 75 m² floor area | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/orfb0rfx/1784_zoning-by-law_2025_consolidation-accessible.pdf) | 2026-10-05 |
| Registration fee | $268 flat | [www.whitby.ca](https://www.whitby.ca/services-and-payments/building-and-renovating/additional-dwelling-units/) | 2026-10-05 |
| Rule | Up to three additional dwelling units per lot: two in the house plus one in an accessory structure, or three in the house (max one in an accessory structure) | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/orfb0rfx/1784_zoning-by-law_2025_consolidation-accessible.pdf) | 2026-10-05 |
| Rule (2) | Detached ADU in an accessory structure: interior side and rear setbacks 1.2 m, exterior side 3.0 m, max height 4.5 m in residential zones, max GFA 75 m² | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/orfb0rfx/1784_zoning-by-law_2025_consolidation-accessible.pdf) | 2026-10-05 |
| Rule (3) | Parking: 1 additional space per ADU; reduced 2.5 m x 5.0 m driveway space and tandem allowed; none required in a Protected Major Transit Station Area; single driveway may widen to 5.5 m | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/orfb0rfx/1784_zoning-by-law_2025_consolidation-accessible.pdf) | 2026-10-05 |
| Rule (4) | Unobstructed path to the ADU entrance at least 1.2 m wide and 2.1 m high | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/orfb0rfx/1784_zoning-by-law_2025_consolidation-accessible.pdf) | 2026-10-05 |
| Rule (5) | Oak Ridges Moraine and Greenbelt Protected Countryside lots: max one ADU; none on Environmental Protection, Natural Heritage System or hazard lands | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/whitby-ca/media/orfb0rfx/1784_zoning-by-law_2025_consolidation-accessible.pdf) | 2026-10-05 |
| Rule (6) | Whitby and Pickering pre-reviewed detached ADU design catalogue (HAF-funded) | [www.whitby.ca](https://www.whitby.ca/services-and-payments/building-and-renovating/additional-dwelling-units/whitby-and-pickering-additional-dwelling-unit-regional-design-catalogue/) | 2026-10-05 |
| Three units as of right (Ontario) | On a parcel of urban residential land, municipalities cannot prohibit: 2 units in a detached/semi/rowhouse plus 1 unit in an ancillary building, OR 3 units in the house with none in an ancillary building | [www.ontario.ca](https://www.ontario.ca/laws/statute/90p13) | 2026-10-05 |

## Conservation authority and environmental rules

| Item | What applies | Source | Checked |
|---|---|---|---|
| Conservation authority | Central Lake Ontario Conservation Authority (CLOCA) | [www.whitby.ca](https://www.whitby.ca/services-and-payments/building-and-renovating/building-permits/) | 2026-10-05 |
| When its permit is needed | CLOCA permit needed for new or enlarged structures, additional dwelling units, fill or grading in regulated areas near streams, wetlands, hazards and the Lake Ontario shoreline (O. Reg. 41/24) | [www.cloca.com](https://www.cloca.com/inquiries-permits) | 2026-10-05 |
| Its permit fees | Minor Permit B $535 for pools, sheds, decks, minor additions; Minor Permit A $175; Standard Permit C $1,990+ | [www.cloca.com](https://www.cloca.com/_files/ugd/6cdd05_ca1ea5bbdaa34f3ca770f69ab8f830e4.pdf) | 2026-10-05 |
| From 2027-02-01: Central Lake Ontario Conservation Authority (CLOCA) | Becomes part of the Central Lake Ontario Regional Conservation Authority (Conservation Authorities Act, Bill 97) | [www.ontario.ca](https://www.ontario.ca/laws/statute/90c27) | 2026-10-05 |
| Overlay or local rule | Oak Ridges Moraine lands have their own zoning by-law (5581-05) and ADU limits | [www.whitby.ca](https://www.whitby.ca/business-and-economy/planning-and-development/zoning/) | 2026-10-05 |

## Heritage

| Item | What applies | Source | Checked |
|---|---|---|---|
| Heritage Conservation Districts | Werden's Plan, Brooklin | [www.whitby.ca](https://www.whitby.ca/explore-and-enjoy/heritage/) | 2026-10-05 |
| Heritage | Two Part V Heritage Conservation Districts: Werden's Plan Neighbourhood (Downtown Whitby) and Brooklin (Downtown Brooklin) | [www.whitby.ca](https://www.whitby.ca/explore-and-enjoy/heritage/) | 2026-10-05 |
| Heritage (2) | Brooklin HCD contains 169 properties (contributing / non-contributing) | [www.whitby.ca](https://www.whitby.ca/explore-and-enjoy/heritage/heritage-conservation-districts/) | 2026-10-05 |
| Heritage (3) | Updated HCD Plans adopted 2026: By-law 8279-26 (Brooklin) and 8280-26 (Werden's Plan) | [www.whitby.ca](https://www.whitby.ca/explore-and-enjoy/heritage/heritage-conservation-districts/) | 2026-10-05 |
| Heritage (4) | Heritage permit required for work on designated or HCD properties; no application fee; applied for via the online portal | [www.whitby.ca](https://www.whitby.ca/services-and-payments/building-and-renovating/heritage-permits/) | 2026-10-05 |

## Building activity

| Item | What applies | Source | Checked |
|---|---|---|---|
| New residential units in building permits issued (all types incl. ARUs), 2024 | 633 | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/durham-ca/media/vc5lqmuu/2026-info-54-2025-annual-building-activity-review.pdf) | 2026-10-05 |
| New residential units in building permits issued (all types incl. ARUs), 2025 | 582 | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/durham-ca/media/vc5lqmuu/2026-info-54-2025-annual-building-activity-review.pdf) | 2026-10-05 |
| Value of residential building permits ($ million), 2024 | 256.3 | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/durham-ca/media/vc5lqmuu/2026-info-54-2025-annual-building-activity-review.pdf) | 2026-10-05 |
| Value of residential building permits ($ million), 2025 | 240 | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/durham-ca/media/vc5lqmuu/2026-info-54-2025-annual-building-activity-review.pdf) | 2026-10-05 |
| Average cost of a new single detached dwelling (CMHC, via Durham Region), 2024 | 1,481,973 | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/durham-ca/media/vc5lqmuu/2026-info-54-2025-annual-building-activity-review.pdf) | 2026-10-05 |
| Average cost of a new single detached dwelling (CMHC, via Durham Region), 2025 | 1,356,332 | [media-003-ca.cdn.govstack.com](https://media-003-ca.cdn.govstack.com/durham-ca/media/vc5lqmuu/2026-info-54-2025-annual-building-activity-review.pdf) | 2026-10-05 |
| Open data | https://geohub-whitby.hub.arcgis.com/pages/opendata | [www.whitby.ca](https://www.whitby.ca/services-and-payments/building-and-renovating/) | 2026-10-05 |

Counts as the municipality or its open data report them. A partial year is marked; never compare it with a full year.

## The nearest finished jobs

- [West Lynde: a Whitby bungalow made two storeys in 4.5 months](https://www.jarviscontracting.ca/projects/west-lynde): Whitby, 0 km away, 2023. New second storey of about 800 sq ft with two bedrooms, a walk-in closet and a bathroom; new kitchen, two new bathrooms, floors, stairs and trim below.
- [Orra: two load-bearing walls out of a childhood home](https://www.jarviscontracting.ca/projects/orra): Ajax, 8 km away, 2025. Two load-bearing walls out, kitchen and living room swapped, gas fireplace with built-ins, new floors, doors and trim, popcorn ceilings removed.
- [Bellamy: opening up a brick bungalow without an addition](https://www.jarviscontracting.ca/projects/bellamy): Scarborough, Toronto, 29 km away, 2025. Whole main floor: load-bearing walls out, steel beams in, new kitchen, mudroom, office, fireplace, floors, trim and doors.
- [Stone Ridge: a finished basement in Scarborough](https://www.jarviscontracting.ca/projects/stone-ridge): Scarborough, Toronto, 34 km away. Full basement finish: rec room, media wall, arched wet bar, bathroom, laundry room and bedroom.

## Nearby towns

- [Oshawa](https://www.jarviscontracting.ca/areas/oshawa) (6 km)
- [Ajax](https://www.jarviscontracting.ca/areas/ajax) (8 km)
- [Pickering](https://www.jarviscontracting.ca/areas/pickering) (13 km)
- [Clarington](https://www.jarviscontracting.ca/areas/clarington) (21 km)

## Sources

1. [Town of Whitby: Building permits](https://www.whitby.ca/services-and-payments/building-and-renovating/building-permits/)
2. [Town of Whitby: Building and renovating](https://www.whitby.ca/services-and-payments/building-and-renovating/)
3. [Town of Whitby: 2026 building permit fees schedule n](https://media-003-ca.cdn.govstack.com/whitby-ca/media/5aqjt5ww/2026-building-permit-fees-schedule-n.pdf)
4. [publications.gov.on.ca](https://www.publications.gov.on.ca/301880)
5. [Town of Whitby: Additional dwelling units](https://www.whitby.ca/services-and-payments/building-and-renovating/additional-dwelling-units/)
6. [Town of Whitby: Development charges rate schedule 2026 02 01](https://media-003-ca.cdn.govstack.com/whitby-ca/media/vhybb2uv/development-charges-rate-schedule-2026-02-01.pdf)
7. [Durham Region: Durham region wide development charge information jul 1 2026](https://media-003-ca.cdn.govstack.com/durham-ca/media/vybhyyp2/durham-region-wide-development-charge-information-jul-1-2026.pdf)
8. [City of Pickering: Developmentcharges citywide 2026](https://media-002-ca.cdn.govstack.com/pickeringca-009-ca/media/wl4en3hp/developmentcharges_citywide_2026-2027final.pdf)
9. [Town of Whitby: Building services division bulletin 2026 01 development charge](https://media-003-ca.cdn.govstack.com/whitby-ca/media/5r2haror/building-services-division-bulletin-2026-01-development-charge-deferrals-002.pdf)
10. [Town of Whitby: Development charges](https://www.whitby.ca/services-and-payments/building-and-renovating/development-charges/)
11. [ontario.ca](https://www.ontario.ca/laws/statute/97d27)
12. [Town of Whitby: Zoning](https://www.whitby.ca/business-and-economy/planning-and-development/zoning/)
13. [Town of Whitby: 1784 zoning by law 2025 consolidation accessible](https://media-003-ca.cdn.govstack.com/whitby-ca/media/orfb0rfx/1784_zoning-by-law_2025_consolidation-accessible.pdf)
14. [Town of Whitby: Pl application minorvariance](https://media-003-ca.cdn.govstack.com/whitby-ca/media/txxlnw3w/pl-application_minorvariance.pdf)
15. [Town of Whitby: Committee of adjustment](https://www.whitby.ca/business-and-economy/planning-and-development/planning-applications-and-guidelines/committee-of-adjustment/)
16. [Town of Whitby: Whitby and pickering additional dwelling unit regional design](https://www.whitby.ca/services-and-payments/building-and-renovating/additional-dwelling-units/whitby-and-pickering-additional-dwelling-unit-regional-design-catalogue/)
17. [ontario.ca](https://www.ontario.ca/laws/statute/90p13)
18. [CLOCA: Inquiries permits](https://www.cloca.com/inquiries-permits)
19. [CLOCA: 6cdd05](https://www.cloca.com/_files/ugd/6cdd05_ca1ea5bbdaa34f3ca770f69ab8f830e4.pdf)
20. [ontario.ca](https://www.ontario.ca/laws/statute/90c27)
21. [Town of Whitby: Heritage](https://www.whitby.ca/explore-and-enjoy/heritage/)
22. [Town of Whitby: Heritage conservation districts](https://www.whitby.ca/explore-and-enjoy/heritage/heritage-conservation-districts/)
23. [Town of Whitby: Heritage permits](https://www.whitby.ca/services-and-payments/building-and-renovating/heritage-permits/)
24. [Durham Region: 2026 info 54 2025 annual building activity review](https://media-003-ca.cdn.govstack.com/durham-ca/media/vc5lqmuu/2026-info-54-2025-annual-building-activity-review.pdf)