Cardiff, United Kingdom
City population: 344626
Duration: 2009 – 2009
Implementation status: Completed
Scale: Sub-microscale: Street scale (including buildings)
Project area: 351 m2
Type of area: Building
Last updated: October 2021

The Interpretation Centre at the Cardiff Castle is displaying a green roof of wildflowers. As well as changing the look of the roof, the wildflower meadow has increased the biodiversity of the area. The nectar-rich species of wildflower turf attract bees, butterflies and other pollinators. The roof had a simple irrigation system built into the substrate where the maintenance would be minimal (ref 3).

Cardiff Castle Green Roof (2007)
Wildflower Turf Ltd., retrieved 08/15/2018 from James Hewetson-Brown (Managing Director)

Overview

Nature-based solution

  • Nature on buildings
  • Green roofs

Key challenges

  • Green space, habitats and biodiversity (SDG 15)
  • Green space creation and/or management
  • Regeneration, land-use and urban development
  • Promotion of naturalistic urban landscape design

Focus

Creation of new green areas, Protection of natural ecosystems

Project objectives

1. To be durable - withstand wear from maintenance / be self-sustaining. (ref 2) 2. Complement the look of the Castle and its surrounding landscaping. (ref 3) 3. Nectar-rich species of wildflower turf to attract bees, butterflies and other pollinators (ref 3)

Implementation activities

1. installation of 270m² of Wildflower Roof Turf creation (ref 1) 2. The roof had installed a simple irrigation system and maintenance meant to be minimal (ref 3) 3. The nectar-rich species of wildflower turf was cared for so as to attract bees, butterflies and other pollinators (ref 3)

Biodiversity conservation or restoration-focused activities

Biodiversity conservation:

  • Protect and enhance urban habitats
  • Create new habitats
  • Reduce negative impacts and avoid the alteration/damage of ecosystem
  • Protect species
  • Undertake specific measures to protect species
  • Undertake specific measures to protect valued species

Main beneficiaries

  • Local government/Municipality

Governance

Management set-up

  • Government-led

Type of initiating organisation

  • Local government/municipality

Participatory approaches/ community involvement

  • Unknown

Details on the roles of the organisations involved in the project

The key Client is the Cardiff County Council. Wildflower Turf Ltd. supplied turf for the roof of the Cardiff Castle interpretation centre (ref 3)

Project implemented in response to ...

... an EU policy or strategy? Unknown
... a national policy or strategy? Unknown
... a local policy or strategy? Unknown

Financing

Total cost

€100,000 - €500,000

Source(s) of funding

  • Public regional budget
  • Public local authority budget

Type of funding

  • Earmarked public budget

Non-financial contribution

Unknown

Impacts and Monitoring

Environmental impacts

  • Green space and habitat
  • Increased green space area
  • Increased number of species present
  • Enhanced support of pollination

Economic impacts

  • Unknown
  • More sustainable tourism
  • Increased property prices
  • Generation of income from NBS

Socio-cultural impacts

  • Social justice and cohesion
  • Improved access to urban green space
  • Cultural heritage and sense of place
  • Protection of historic and cultural landscape / infrastructure
  • Increased sense of place identity, memory and belonging

Type of reported impacts

Achieved impacts

Presence of formal monitoring system

Unknown

Presence of indicators used in reporting

No evidence in public records

Presence of monitoring/ evaluation reports

No evidence in public records

Availability of a web-based monitoring tool

No evidence in public records

References

Cardiff Castle Green Roof 4 Years After Installation (2013)
Wildflower Turf Ltd., retrieved 08/15/2018 from James Hewetson-Brown (Managing Director)
Cardiff Castle Green Roof 4 Years After Installation (2013)
Wildflower Turf Ltd., retrieved 08/15/2018 from James Hewetson-Brown (Managing Director)