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Phase II - Clemow Estate Heritage Conservation District Study

Project Status: 


The City of Ottawa has started Phase II of the Clemow Estate Heritage Conservation District Study. The area under study includes Clemow Avenue west of Bank Street to Bronson Avenue, Monkland Avenue, and Linden Terrace.

Study Area [PDF 11.4 MB] 

The study area features an eclectic mix of houses in a variety of architectural styles. It also includes a portion of Central Park, which was one of the first district parks created in Ottawa and is significant for its association with early Canadian landscape architect Frederick Todd’s 1903 plan for Ottawa’s parks and driveways.

Heritage staff are currently in the process of analyzing the character of the study area as well as drafting policies and guidelines for managing the conservation of the important heritage resources that have been identified.

Frequently Asked Questions

What is a heritage conservation district?

Part V of the Ontario Heritage Act allows municipalities to recognize and protect neighbourhoods, rural landscapes, main streets, or other areas of special cultural heritage value that have a cohesive sense of time and place.

Although each district is different, many share common characteristics. Heritage conservation districts (HCDs) may have:

  • A concentration of heritage buildings, sites, structures, and cultural landscapes
  • Visual coherence through the use of building scale, mass, height, material, proportion, and colour that convey a sense of time and place
  • A distinctive character that distinguishes them from neighbouring areas

District designation allows City Council to manage and guide future change in the district through adoption of a district plan with policies and guidelines for conservation, protection and enhancement of the district’s special character. There are currently 18 heritage conservation districts in Ottawa, including New Edinburgh, Rockcliffe Park, Lorne Avenue, Briarcliffe and Centretown. 

How is a heritage conservation district designated?

In 1975, the provincial government passed the Ontario Heritage Act, giving municipalities two ways to recognize and protect their heritage. Municipalities can designate individual buildings or structures under Part IV or heritage conservation districts under Part V of the Act. According to the Act, a district is designated when City Council passes a by-law establishing it. Under the Act, City Council must also adopt a Heritage Conservation District Plan to guide the management of the district over time. The Act also requires that public consultation be undertaken prior to the designation of a heritage conservation district.

What will district designation mean to me?

Once a district has been designated under the Ontario Heritage Act, City Council regulates changes and development in the district. This does not mean that change and development cannot take place. Rather, it means that changes and development are managed to ensure that they are sympathetic to and enhance a district's historic character.

If property owners wish to alter the exterior of their building, they are required to submit an application to the City of Ottawa. If the alterations are minor in nature, the application is reviewed by Heritage Services staff and a heritage permit is usually issued within five to 10 business days. For more extensive, large scale alterations, the application will be reviewed by the Built Heritage Sub-Committee, Planning Committee and City Council. City Council will consent to the proposed alteration, refuse it, or consent to it with conditions. An application for a permit under the Ontario Heritage Act has to be processed within 90 days or it is deemed to be approved. Permission must also be obtained prior to demolishing a building or constructing a new one. The interior of a building is not regulated through a heritage conservation district designation.

How will I know what type of change is acceptable?

A Heritage Conservation District Plan that includes management guidelines for property owners, planners, architects, and others to use in restoring or altering an existing structure in the district or constructing a new one on a vacant lot will be completed. The draft of the plan will be available on the City’s website for comment. You can also consult with staff in the Heritage Section to discuss the proposed work.

Why is the City looking at this area specifically?

In October 2004, City Council passed a recommendation to study the Central Park Heritage Conservation District and adjacent areas in three phases. Phase I included the Central Park Heritage Conservation District, Phase II included Linden Terrace and Patterson Creek to the Rideau Canal and Phase III included Central Park and adjacent buildings west of Bank Street.

The Central Park Heritage Conservation District - later renamed Clemow Estate East - was designated in 2011. In 2014, the Heritage Section received a request from the Glebe Community Association to add Clemow Avenue west of Bank Street and Monkland Avenue to Phases I and II of the Heritage Conservation District Studies.

What properties are included in the Phase II study area?

The Phase II study area includes Clemow Avenue west of Bank Street, Monkland Avenue, and Linden Terrace.

What are the advantages to designation under the Ontario Heritage Act?

Property owners will be eligible to apply for the City of Ottawa Heritage Restoration Grant Program (subject to the availability of funding). There will be a reduction in incompatible changes to the character of the area because all changes will be guided by the Heritage Conservation District Plan and will have to be approved under the Ontario Heritage Act. Designated heritage districts often enjoy a renewed cultural and economic vitality not only because district designation highlights their special values but also because they are protected from decay and the intrusion of incompatible structures.

Will I have to restore the exterior of my building to its original condition?

No, heritage designation does not require an owner to restore the building. If an owner wishes to restore the exterior then matching grant assistance is available from the City (subject to the availability of funding). 

Will I require City Council permission to make interior changes to my building?

No, a heritage conservation district designation will not affect the interior of your building. The normal requirements for a building permit would still apply.

Will my taxes go up?

Similar to any area in Ottawa, if your property value increases, your property taxes will increase accordingly.

Will my property value go down?

According to research conducted by the University of Waterloo Heritage Resource Centre, using a sample of 3000 designated properties in 24 communities, property values of heritage designated buildings are as good or better than the general market trends and the property values of heritage properties tend to be more resistant to downturns in the general market.

Will I be able to get insurance?

Yes. There are currently 18 heritage conservation districts in Ottawa and over 100 in Ontario. All of the buildings in these districts are insured.

For further information

MacKenzie Kimm, Heritage Planner
Planning, Infrastructure and Economic Development 
Tel.: 613-580-2424, ext. 15203