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Phase II - Clemow Estate Heritage Conservation District Study

Project Status: 


The Phase II of the Clemow Estate Heritage Conservation District (HCD) Study was initiated in 2016 to analyze the character of the Study area and to research its history, development and evolution in order to identify the important character defining attributes that make it significant. The project involves:

  • Conducting historical and archival research
  • Undertaking a survey of buildings and structures, public and private landscape features, as well and important views within the area
  • Consulting with community groups, residents, and business owners
  • Establishing the boundaries of the area

The Study will ultimately make recommendations to City Council and inform the policies and guidelines to help manage change in the area in the form of a heritage conservation district plan.

The area under study includes three streets--Clemow Avenue west of Bank Street to Bronson Avenue, Monkland Avenue and, Linden Terrace. This area bookends the Clemow Estate East Heritage Conservation District that was designated in 2011. The study area features an eclectic mix of houses from the early 20th century in a variety of architectural styles, as well as Patterson Creek and its associated park.

Study Area [PDF 11.4 MB] 


In 2004 City Council recommended directed staff to undertake a heritage conservation district study of Central Park and adjacent areas in three phases. Phase I included the area that was designated as the Clemow Estate East HCD in 2011. 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.

In 2014, the City received a request to add Clemow Avenue west of Bank Street and Monkland Avenue to Phase II of the study. Staff agreed with the amendment of the study area.

Project Schedule

The Phase II Clemow HCD Study is estimated to be completed later this year (2019). Historic research and analysis of the character of the area is nearing completion. Once complete, staff will draft an HCD Plan with guidelines and policies for area. The Study findings and a draft HCD Plan will be posted on the City’s website and available at public meetings, prior to being considered by the Built Heritage Sub-committee, Planning Committee and City Council.

Related Studies

The Study Area for the Phase II Clemow Estate HCD Study overlaps with the study area of another ongoing City study called the Bank Street in the Glebe: Height and Character Study. This may affect the properties at the northwest, southwest and southeast corners of Bank Street at Clemow Avenue. In order to capture potential synergies between the two studies and provide convenience for interested residents, joint public events may be held for both studies.

Meetings and Public Engagement

As We Heard It Report - Open House #2 held February 21, 2019

The second public open house even for the Phase II Clemow Estate HCD Study took place on Thursday February 21, 2019 from 7 to 9 pm at the Glebe Community Centre. It was a joint event with the Bank Street in the Glebe: Height and Character Study. Approximately 100 participants attended the event and 12 comment sheets were completed.

Display boards [ PDF  7 MB ]

The following outlines the comments relating to the HCD project provided during the meeting, as well as the submission of written comments after the meeting.

As We Heard It Report [ PDF 159 KB ]

Get Involved

If you would like to get involved or provide feedback on the Phase II Clemow HCD study, there are several ways to do so:

The study is being conducted in Capital Ward, Councillor Shawn Menard

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.

Further information

Phase I (Clemow Estate East HCD) Plan

Ontario Heritage Act 

City of Ottawa Official Plan 

Ministry of Tourism, Culture and Sport’s Guide to District Designation 


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

Information Meeting - February 21, 2019

Thursday, February 7, 2019, 11:56 am
Last updated: 
Monday, February 11, 2019, 3:33 pm

Dates & Times

Thursday, February 21, 2019,
7:00 pm to 9:00 pm


Glebe Community Centre
175 Third Avenue
Ottawa, ON

Drop-in between 7 to 9 pm
Opening Remarks at 7:30 pm

Attend this information session to find out more about two studies happening in your community in 2019:

  • The Phase II Clemow Estate Heritage Conservation District (HCD) Study will analyze the character and cultural heritage value of the study area and will result in a new HCD Plan for managing its conservation and future change.
  • The Bank Street in the Glebe Planning Study will review and update planning policy and zoning by-laws to better manage future growth and intensification along Bank Street in the Glebe.

By attending, residents will be able to speak to City staff, learn more about what the studies are about, the timelines, and have a chance to provide feedback.

Accessibility is an important consideration for the City of Ottawa. If you require special accommodation, please call or email one of the project leads identified below before February 15, 2019.


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