HD Awards 2025 - Shortlist Announced
Astley Estate

Astley Estate

Project

Shortlisted

Planning Application Link View map

Number/street name:
Astley Estate

Address line 2:
Rowcross Street

City:
Southwark, London

Postcode:
SE1 5HU

Architect:
Archio

Architect contact number:
020 7183 4048


Developer:
London Borough of Southwark.

Planning Authority:
London Borough of Southwark

Planning consultant:
London Borough of Southwark

Planning Reference:
21/AP/3097

Date of Completion:
05/2025

Schedule of Accommodation:
1no. 5 bedroom duplex, 1no. 4 bedroom flat, 2no. 2 bedroom fully wheelchair accessible flats (M4(3)), 4no. 3 bedroom flats, 6no. 2 bedroom flats, 6no. 1 bedroom flats

Tenure Mix:
100% social rent

Total number of homes:


Site size (hectares):
0.105 hectares

Net Density (homes per hectare):
190

Size of principal unit (sq m):
77

Smallest Unit (sq m):
55

Largest unit (sq m):
165

No of parking spaces:
1 (associated with the 2 fully wheelchair accessible flats)

Scheme PDF Download



Planning History

A resolution to Grant was made in January 2022. The scheme underwent two rounds of pre-planning enquiry with the local authority, and further informal engagement with the LPA Design Officer. The designed involved extensive community engagement, and designs were developed in close collaboration with the Resident Project Group, made up of people from the estate. This resulted in strong community support and there were no objections at planning. This meant the application could be decided under delegated powers, allowing the much-needed homes to start on site more quickly. Construction will begin in April 2022.

The Design Process

The design for these new homes was developed in close collaboration with local people, and the initial brief for 14 homes was extended to 20, during a series of on-line codesign workshops with residents, Councillors and Planners.
The new housing sits on a garage site on the edge of the estate, just off the Old Kent Road, between two four-storey blocks on one side and an 11-storey block on the other. The design of the new building responds to this constrained context.
In recent years, the Astley Estate has suffered from antisocial behaviour and the message from residents was that they wanted the development to help them reclaim a sense of ownership of their estate. To achieve this, the brief was expanded to include estate improvements alongside the new homes. These include landscaping of open spaces, a refurbished playground and T&RA hall and (importantly to residents) a new parking entry system.
Residents wanted the new building to “reflect and enhance the estate’s existing sense of community”. In response we designed a building that feels at home in its surroundings - horizontal banding echoes the facades of the neighbouring ‘slab blocks’, creating a sense of movement that draws you into the estate and its community. The Southwark Design Officer praised the subtle references to London Art Deco blocks, and the LCC housing of the early Twentieth Century.
The development includes two large family units (a 4b7p flat, and a 5b9p maisonette) to address local overcrowding. Flats are 10% above minimum standards allowing generous living and storage space.
The design process engaged a wide cross-section of people, including the Southwark Young Advisors – a charity who support 16 to 24-year-olds to deliver change in their local area. This enabled multigenerational voices to join the discussions, building community cohesion for the long term.

Key Features

- Extensive resident engagement has resulted in a scheme that meets local need (eg. overcrowding), building strong local support as a result.
- The potential to deliver maximum social benefit has been carefully considered, resulting in a series of estate improvements that directly benefit local people. This is further supported by the Council’s local lettings policy, in which 50% of homes are made available for council tenants living in the immediate area.
- The scheme has been designed to Passivhaus principals which, in combination with low-energy technologies, will reduce the operational energy of the building and resident energy costs.

Download PDF

Scheme Information

Type

  • Multi-Aspect Apartments
  • Maisonettes

Size

  • High rise
  • High density
  • Medium density
  • Compact

Cost/ownership

  • Affordable
  • Council
  • Low Management Charges

Planning

  • Estate Regeneration
  • Community Consultation
  • Infill
  • Urban Infill
  • Urban Regeneration

Construction/Design

  • Brickwork
  • Contemporary Design
  • Local Vernacular
  • New London Vernacular

Sustainability

  • Low Energy in Use

Outdoor areas

  • Private Terraces
  • Biodiversity

Surrounding Area

  • Landscape
  • Communal Spaces
  • Community Buildings
  • Play Spaces
  • Public open space

Specialised

  • Wheelchair
  • Community

Sustainability

The building has been designed to minimise embodied carbon and operational energy. Fire safety and structural constraints dictated a reinforced concrete frame, however, several steps have been taken to minimise embodied carbon. For example, an efficient, stacking structure and lightweight ‘structural framing system’ minimises the weight of the building and the amount of concrete used in the foundations and the concrete frame. Reduced carbon concrete containing ‘Ground Granulated Blast-Furnace Slag’ has been specified, resulting in a 28.5% carbon reduction to the frame. Similarly, environmentally certified steel reinforcement further reduces the embodied carbon of the structure. Robustly specified building materials promote longevity by limiting periodic replacement. e.g. windows have a design life of 40 years - the brief required 25. The design promotes active reuse: eg. each flat has only one structural column passing through it, creating flexible layouts: the 4-bed unit can be divided into a 2-bed and a 1-bed, and 3-bed units can be changed into 2-bed accessible units. We have designed to Passivhaus principals, using a ‘fabric first’ approach, and so the building is oriented to maximise solar gain, reducing winter energy requirements, and windows have been positioned and sized to minimise summer overheating risk. The client opted for an uncertified near-Passive scheme, however the scheme can be renovated in the future to provide a fully accredited scheme. The building is ‘electric only’ to take advantage of the carbon savings available from the decarbonising national grid. Air Source Heat Pumps, in conjunction with Solar Thermal panels, keep energy requirements (and resident costs) low. As a result, new residents’ heating bills will be around £170/year, half the cost of a typical newbuild flat. The landscaping includes 28 new trees and large areas of biodiverse planting, helping achieve an Urban Greening Factor of 0.43.
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