The Kingston Penitentiary cannot be altered, redeveloped or destroyed.

     The penitentiary is included in the City of Kingston, Ontario's Heritage Properties Register:
Address
560 King Street West
Name
Kingston Penitentiary - Main Complex, Main cell block, West workshop, North Lodge, East.

National Heritage Site - Yes
Federal Heritage Building - Yes
Listed Property of Cultural and Heritage Value - Yes

(Read: "(PDF) City of Kingston Heritage Properties Register").
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Many other Corrections Canada properties in the city, former and current, are also included on the register:
Address
1455 Bath Road
Name
Collins Bay Institution

Federal Heritage Building - Yes
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Address
440 King Street West
Name
St. Helen's
Former Regional Headquarters for Correctional Service of Canada.

Federal Heritage Building - Yes
Part 1V Designated - Individual properties protected under the Ontario Heritage Act - Yes
Interior Designation - Yes
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Address
462 King Street West
Name
Stone Gables
Former Regional Headquarters for Correctional Service of Canada.

Federal Heritage Building - Yes
Part 1V Designated - Yes
Interior Designation - Yes.

Stone Gables at 462 King Street West, a mansion constructed with limestone.

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The Isabel McNeill House at 525 King Street West, located directly across the street from the Prison for Women and Kingston Pen.

Address
525 King Street West

Name
Residence of the Deputy Warden of Kingston Penitentiary
The Isabel McNeill House (The minimum security women's prison was decommissioned a few years ago.)

National Historic Site - Yes
Federal Heritage Building - Yes
Listed Property of Cultural and Heritage Value - Yes.
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Address
555 King Street West

Name
The Warden's House
Canada's Penitentiary Museum

National Historic Site - Yes
Federal Heritage Building - Yes
Listed Property of Cultural and Heritage Value - Yes.

An image of the Warden's House, 555 King Street West, sent to me by staff at the Federal Heritage Buildings Review Office in Gatineau, Quebec.

I visited the Penitentiary Museum a few years ago:

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Address
40 Sir John a. Macdonald Boulevard

Name 
Prison for Women
Part 1V Designated - Yes
Interior Designation - Yes.
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THE CITY OF KINGSTON - OFFICIAL PLAN - SCHEDULE 9: HERITAGE FEATURES AND PROTECTED VIEWS:

The yellow-coloured areas on the map are Heritage Character Areas:
1.) Lower Princess Street
2.)Portsmouth Village
3.)St. Lawrence Ward
4.) Alamein Drive
5.) Cataraqui Drive
6.) Village of Westbrook
7.) Kingscourt
8.) Former psychiatric hospital
The pink-coloured area is a Heritage Corridor Area.
The orange-coloured places are Heritage Conservation Districts:
1.) Market Square
2.) Barriefield
3.) Old Sydenham

The City of Kingston Official Plan - Page 368/569 - Potential Heritage Conservation Districts- May 1 2018

7.3.C.6. The City intends to investigate areas for designation as heritage conservation districts including but not limited to:
b.) King Street West from Portsmouth Village to Barrie Street.
c.) Portsmouth Village.

What it means to be a Heritage Conservation District in Ontario:
    The immediate benefit of an HCD designation is a planning process that respects a community's history and identity.
 Character of heritage conservation districts: (From: Page 10, Heritage Conservation Districts- Ontario Ministry of Tourism, Culture and Sport website)

• A concentration of heritage buildings, sites, structures; designed landscapes, natural landscapes that are linked by aesthetic, historical and socio-cultural contexts or use.

The Penitentiary Water Tower, made of limestone, is located at 244 Sir John A. Macdonald Boulevard in Kingston, Ontario. 

The Penitentiary Water Tower is an 87-foot high structure that was built by Kingston Penitentiary inmates in 1895. Prison officers and their families rented the apartments beneath the water tower. Queen's University now owns the building and surrounding land.