# What does a renovation in Dundas need to check first?

> What a Dundas renovation has to check: heritage designation, the downtown heritage inventory, the Dundas zoning by-law, the escarpment and the valley.

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- Page updated: 2026-11-04

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Home renovations and construction

A renovation in Dundas needs to check heritage status first: a designated property needs a City of Hamilton heritage permit before a building permit is issued, and downtown Dundas has its own built heritage inventory. Some lots still fall under the former Dundas zoning by-law 3581-86, and the escarpment and valley bring conservation approvals. Cruzz Construction, a Hamilton general contractor, renovates homes and storefronts in Dundas.

[Call (289) 308-6563](tel:+12893086563) [Discuss a project](https://cruzzconstruction.com/request/)

## Does a Dundas heritage property need a permit to renovate?

Yes, when the work is likely to affect its heritage attributes. The City of Hamilton says a [heritage permit](https://www.hamilton.ca/build-invest-grow/planning-development/heritage-properties) is needed to alter a designated property in that way, and that a building or sign permit will not be issued until the heritage permit is approved. A review subcommittee meets monthly, so the date belongs in the schedule.

## What is the Downtown Dundas Built Heritage Inventory?

A City of Hamilton heritage inventory for the downtown, listed on the same heritage properties page. Check whether a building is in it, and whether it is designated, before planning exterior changes such as a new storefront, windows or an addition. A [storefront fit-out](https://cruzzconstruction.com/commercial/retail-fit-outs/) downtown starts here.

## Which zoning by-law applies in Dundas?

Either Hamilton's 05-200 or the former Town of Dundas by-law 3581-86. The City's [zoning page](https://www.hamilton.ca/build-invest-grow/planning-development/zoning/zoning-by-laws-former-communities) explains that the majority of properties are under 05-200 and the rest still use the former communities' by-laws. The applicable one sets what an addition can be.

## Do the escarpment and the valley add approvals?

They can. Dundas sits below the escarpment, where the [Niagara Escarpment Commission](https://escarpment.org/development-permit-applications/) may need to issue a development permit first, and near creeks and the valley [Hamilton Conservation Authority](https://conservationhamilton.ca/hca-regulation-permits/) requires written approval before building on a regulated lot.

## What should a Dundas brief include?

The address, whether the property is designated or in the inventory, photos of the front and the part being changed, and any drawings. [Whole-home renovations](https://cruzzconstruction.com/residential/home-renovations/) and [additions](https://cruzzconstruction.com/residential/additions/) list the approvals in order.

**Checks for a Dundas renovation**

| Check | Where to look | Why it matters |
| --- | --- | --- |
| Heritage designation | City of Hamilton heritage properties. | A heritage permit comes before the building permit. |
| Downtown heritage inventory | Downtown Dundas Built Heritage Inventory. | Shows which downtown buildings the City has recorded. |
| Zoning by-law | City of Hamilton zoning by-laws of former communities. | 05-200 or Dundas 3581-86 sets what can be built. |
| Escarpment and valley | Niagara Escarpment Commission and Hamilton Conservation Authority. | Their approval can be needed first. |

Published by Cruzz Construction, Hamilton. Updated November 4, 2026.

## Describe the space.

Bring the location, current drawings and the changes you need.

[Discuss a project](https://cruzzconstruction.com/request/)

## Prepare the brief.

A few clear details help define the work.

[What to include in your enquiry](https://cruzzconstruction.com/guides/quote-preparation/)

[info@cruzzconstruction.com](mailto:info@cruzzconstruction.com)

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Cruzz Construction. Call (289) 308-6563. Full site: https://cruzzconstruction.com/