HD Awards 2025 - Shortlist Announced
Cranmer Road (King’s College)

Cranmer Road (King’s College)

Completed

Shortlisted

Planning Application Link View map

Number/street name:
Cranmer Road

Address line 2:

City:
Cambridge

Postcode:
CB2 1ST

Architect:
Allies and Morrison

Architect contact number:
2079210100


Developer:
King's College Cambridge.

Planning Authority:
Cambridge City Council,

Planning consultant:
Turley

Planning Reference:
17/1905/FUL

Date of Completion:
04/2025

Schedule of Accommodation:
59 x 1 bed graduate rooms (40 ensuite and 19 non ensuite)

Tenure Mix:
100% student rented accommodation

Total number of homes:


Site size (hectares):
0.22

Net Density (homes per hectare):
262

Size of principal unit (sq m):

Smallest Unit (sq m):
13.5sqm rooms (non ensuite), with an overall average area of 28sqm including common spaces

Largest unit (sq m):
17sqm rooms (ensuite), with an overall average area of 31sqm including common spaces

No of parking spaces:
4 blue badge parking spaces

Scheme PDF Download



Planning History

Cranmer Road sits within the West Cambridge Conservation Area. As a result the planning process was both lengthy and complex.
The local planning authority initially rejected the principle of any development outright during pre-application discussions. Following this, an initial planning submission for a larger scheme was rejected at both committee and appeal. The eventual design that was granted consent was slightly smaller in scale, and was careful to respond positively to its historical context. A positive and discursive consultation process with both local residents, neighbours and the Colleges graduate community ensured that particular concerns of each community were fully appreciated

The Design Process

Cranmer Road provides 59 new student bedrooms within two distinct buildings; a Garden Building and a Villa Building. These combine with two existing Arts and Crafts villas to unite a fragmented community of graduate students within a new collegiate campus.
At the heart of the community is a shared garden; a verdant backdrop to everyday life that offers biophilic benefits to residents through diverse array of habitats and garden spaces. Residents health and wellbeing are further enhanced through the buildings environmental strategy. As Passivhaus certified buildings they combine thermal comfort, with high levels of natural daylight and high-quality filtered air. Creating calm, peaceful and healthy spaces within which students can focus on their studies.
The Villa Building responds to the adjacent Arts and Crafts villas. Providing 19 bedrooms over three stories, it is characterised by pitched roofs, dormer windows and gables. The materials are designed to age gracefully, echoing the neighbouring villas they include red brick walls and chimneys, tiled roofs, and white window frames.
The Villa is conceived as a large ‘shared house’ with shared bathrooms – an arrangement that resulted from close consultation with graduates, who wanted a range of rent levels – It provides a large shared kitchen at ground floor overlooking and opening into the central garden. The social heart to this student home.
The larger Garden Building, nestled into the back of the site, provides 40 ensuite bedrooms. Its elevation treatment – incorporating pre-cast concrete elements and terracotta – evokes West Cambridge’s heritage of modernist architecture. At each end, the stair enclosures – which can be glimpsed from surrounding streets – are given a special treatment: Precast concrete canopies cantilever over the entrances, with expansive lantern-like corner windows offering views out into the gardens. At the heart of the Garden Building is a shared common room that opens into a courtyard.

Key Features

Collegiate campus:
• Contextual and quietly assured new buildings that complement existing villas to frame a shared social garden
• Allowing the graduate community to enjoy the Collegiate experience
• Significantly increasing the number of graduate students that King’s College can accommodate
• Increasing the number of accessible rooms that the King’s College can offer
Long lasting, low energy:
• The first major Passivhaus development in Cambridge
• Built to meet a 100-year design life
• Setting a positive example that others have followed (three further Passivhaus developments are already under construction)
• Innovative detailing that combines aesthetics with performance

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Scheme Information

Type

  • Cohousing

Size

  • Low density

Planning

  • Community Consultation

Construction/Design

  • Brickwork
  • Local Vernacular
  • CLT

Sustainability

  • Sustainable urban Drainage Systems
  • Low embodied carbon construction
  • Low Energy in Use
  • Biodiversity/Building with Nature

Outdoor areas

  • Biodiversity
  • Garden

Surrounding Area

  • Landscape
  • Communal Spaces

Sustainability

Cranmer Road’s quietly innovative environmental strategy is not immediately apparent: Responding to a requirement for longevity it is built to meet a 100-year design life, it uses very little energy, and creates comfortable spaces for students to live and study in. Following a comprehensive options appraisal and life-cycle cost analysis, Passivhaus Classic was adopted. This approach minimises energy use by accurately modelling heat gains and losses at design stage so the envelope can be engineered to minimise heat loss. Careful on-site monitoring then drives quality through construction. The very low heating requirements resulting from Passivhaus enabled a direct-electric heating and hot-water strategy. Heating is provided by smart electric radiators that switch off when the windows are opened, while hot water is provided by point-of-use electric heaters. This strategy reduces distribution heat losses to prevent overheating and employs simple ‘plug-and-play’ technology that is easy to maintain. The approach required innovative detailing: From a thermal bridge-free ‘floating’ foundation solution, to free-standing concrete and brick facades that further reduce thermal bridging, and staircase enclosures that sit outside the thermal envelope, enabling the expressive stair enclosure. The buildings benefit from an all-timber CLT structure (cross-laminated timber), to reduce embodied carbon and deliver a rapid construction programme. This helped achieve a remarkably low airtightness of 0.16-0.19 ACH. Surrounding the buildings, the biodiverse gardens incorporate ecologically rich drainage swales, allotment planters and meadow gardens to ensure residents enjoy the biophilic benefits of the landscape. The large flat roof of the garden buildings also benefits from being a brown roof allowing it to self-vegetate from windblown and bird lime seed dispersal. This all combines to create an ecologically rich, very low energy, graduate campus that densifies an existing College site a short cycle ride from both the University and the central College. Creating a sustainable backdrop to student life.
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