Ottawa's Rideau Canal is a UNESCO World Heritage Site.

Larco Investments cannot build a seven-storey addition to the Chateau Laurier Hotel, because the addition does not complement the architectural style of the Chateau Laurier.

Rideau Canal National Historic Site - Principles for Good Waterfront Development
2.) Conserve historic buildings and cultural heritage features. It is particularly important to conserve and reuse historic houses and cottages; lodges, mills, barns, fences and other cultural heritage features to preserve the landscape character of the Rideau Corridor. Aboriginal communities share a long history and relationship with the pre and post canal landscape.

4.)  New buildings should be designed to complement the landscape character and architectural style of the surrounding area. Buildings should be in proportion to the size and frontage of the property and fit in with the surrounding built environment.

Merrickville's historic downtown along the Rideau Canal.

The Rideau Canal and Corridor are National Historic Sites of Canada and  UNESCO World Heritage Sites. World Heritage Sites have buffer zones, which prevent the construction of new buildings that are not in character with the area. And buffer zones protect the views and access to designated temples, landscapes, landmarks, etc..
World Heritage and Buffer Zones
"Buffer zones are an important tool for properties inscribed on the World Heritage List.'
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If the Village of Portsmouth in Kingston, Ontario becomes a UNESCO Cultural World Heritage Site, the following events will not happen:

1.) The Kingston Penitentiary will not be demolished so that high rise condominiums, townhouses, a hotel, restaurants and a sailing club can be built on the site. And the guard towers, perimeter walls and limestone buildings will be preserved.

2.)  Residential buildings that block the views of Lake Ontario will not be constructed on the Portsmouth Olympic Harbour property.

3.)  Walls, bars and locking mechanisms will not be removed from the nearby Prison for Women, so that the landmark can be converted into condominiums and commercial space. And residential towers that block the views of Lake Ontario will not be built on the grounds.

4.)  A residential development will not be created on the grounds of the nearby Church of the Good Thief.  The church, as well as the Pen, Prison  For Women, Penitentiary Tower, Rockwood Asylum and many other buildings were constructed by Kingston Pen inmates, using limestone.

5.)  The City of Kingston will not buy the land belonging to Corrections Canada, the Training Centre. on Union Street. Kingston has a shortage of housing, and the city is anxious to buy "surplus' federal land.

6.)  The Penitentiary Tower on Union Street will never be demolished, by Queen's University or whomever the University decides to sell it to.

7.)  The Rockwood Asylum will not be flattened or converted into condos. The owner of the Asylum is the Government of Ontario, and they are selling the "ghost building", as well as Guelph Reformatory, the London Psychiatric Hospital, Perth Jail, etc.

8.)  The Penitentiary Museum on King Street West, right across from the Pen, will not be shut down and sold.

9.)  The Isabel MacNeill Halfway House for Women on King Street West will not be sold or flattened.

10.)  The St. Helen's Complex, including Stone Gables, will not be flattened or converted into housing. The property should be a museum complex.
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