Greening the Greyfields –a new approach for community co ... Gudes - Greening... · Why Blacktown? Why Blacktown? Why Blacktown? Design Principles. Hypothetical site • Ageing

Prof Chris Pettit & Dr Ori Gudes,

City Futures, University of New South Wales

Matthew Sales, Blacktown City Council

Dr Stephen Glackin, Centre for Urban Transitions, Swinburne University of Technology

Greening the Greyfields – a new approach for community co-design

BackgroundAims Importance of the studyRationalProgress to date / workflowPlanning Support Systems (PSS)

and scenario planning toolsBlacktown case studyOur design vision and principlesWhere to from here

Overview

“Today, Greater Sydney isone of the top 10 fastest-growing regions in theWestern world and by 2036is projected to be home toanother 1.7 million people(approx. 5 million now), or3.2 million more people by2056.”

Greater Sydney Commission, Greater Sydney

Region Plan 2018

Background

The projected high population growth rates in Australia’s cities indicates that more needs to be done to unlock the regeneration potential of especially the established suburbs.

Aims To encourage medium-density living solutions through “precinct” scale

development; and

To utilise a data-driven and scenario planning approach underpinned by Geographic Information System (GIS) functionality.

Importance of the study

Data-driven approaches

Environmental Performance

Development Transparency

Collaborative Development/planning

The study promotes…

Where existing houses are often subject to:

– Knock-down

– granny flats

– Dual occupancies (single lot, two dwellings)

– Subdivisions

– Small townhouse strata/community title schemes

Characteristics of Grey fields

Greenfield Brownfield Greyfield

2005200620072008200920102011201220132014Rationale cont.

Rationale cont.

This is what WILL occur:BAU scenario: lot-by-lot development.

Current development patterns and Business as Usual Encourage monotonous low performance developments with limited building types.

This is what COULD occur:Precinct-scale development

Progress To Date

Initial engagement activities to find a

suitable case study and obtain

support

PSS

Site analysis

Designscenarios

Methodological approach workflow cont.

Feasibility assessment

Community engagement

Land zone change and

implementation

City data – Blacktown group

Planning Support Systems (PSS) Envision

Enables exploration of a city in order to identify locations that are suitable for densification / development

– Multi-criteria analysis to map composite indices of demographic data

– Query tool to identify re-developable properties

– Viability tool to assess the financial return of re-development options

• For more information, see http://www.greyfieldplanning.com.au/

ESP – Envision Scenario Planning

• Enables precinct-scale scenario planning (demo)

Demo

Series of training, design workshop, and evaluation

Blacktown overview

Why Blacktown?

Why Blacktown?

Why Blacktown?

Design Principles

Hypothetical site

• Ageing housing stock – circa

1950s

• Disjointed public parks and

recreation areas which are

underutilised

• Existing creek line serves a

drainage function only.

• High noise levels adjacent to

main arterial road

Road patterns & transport

• Ageing housing stock – circa

1950s

• Disjointed public parks and

recreation areas which are

underutilised

• Existing creek line serves a

drainage function only.

• High noise levels adjacent to

main arterial road

• Lack of permeability and

accessibility throughout the

precinct

• Isolated areas because of cul-

de-sac subdivisions

• Difficult to access and

underutilised spaces.

• High dependence on private

vehicular transport.

• Close proximity to the CBD

Road patterns & transport

Density distribution

To identify appropriate methods forincreasing density which encouragecommunity benefits while minimisingpotential impacts. The key considerationsused to guide the design of built form are:

• Rational positioning of higher densityzones: creating a High DensityResidential zone with buildingheights ranging from 6 to 9 storeysalong with a Medium DensityResidential zone with buildingheights ranging from 3 to 6 storeys.

• A range of building typologies frommultistorey apartments to terraces.

• Creating streetscapes with a diverserange of frontages and styles.Distribution of building height anddensity to enable good solar accessin the buildings and across key areasof public domain.

Typology: 6-9 Storey ResidentialBuilding Footprint: 2000 sqm to 2400 sqm

Typology: 4 Storey ResidentialBuilding Footprint: 1800 sqm to 2000 sqm

Typology: 3 Storey Residential multi-occupancyBuilding Footprint: 800 sqm

Built form

Masterplan

Built form

Waterways

Transport + Movement

Open space

Masterplan

ExistingNo. of dwellings: 166Building footprint: 31,000 sqmPublic landscaped area: 80,000 sqm

ProposedNo. of dwellings: 1230

Building footprint: 29,800 sqmPublic landscaped area: 110,000 sqm

Where to from here?

PSS should be further refined for different projects, locations, governments, scopes and communities. The study provides insights and a solid basis for urban planners to improve their practice through the implementation of PSS

Further apply the PSS working with the local community to effect change in precinct planning as part of a co-design approach

Detailed design report and additional feasibility assessment are required

Commencing engagement with the community to start a co-design phase

Achievements / awards

• The project was one of the 8 finalists in the 2018 UDIA award

• The project was shortlisted for the Research and innovation fund by NSW LGA https://www.lgnsw.org.au/key-initiatives/research-and-innovation-fund

Publication and impact

Smart engagement (2018 )The Committee of Sydney Smart engagement report

Gudes, O., Glackin, S., Pettit, C. (2018). Designing precincts in the densifying city - the role of planning support systems. 3rd International Conference on Smart Data and Smart Cities. Delft, Netherlands: 4–5 October 2018.

Newsletter, September 2018: "Smart Engagement in Blacktown" CFRC Newsletter, March 2018: "Taking City Analytics, ESP and EVISION out west"

Gudes, O., Pettit, C., Glackin, S. & Leith, A. (2017). A data-driven collaborative-planning approach for developing sustainable medium-density housing in cities. State of Australian Cities National Conference. Adelaide, Australia: University of Adelaide, 28–30 November.

Glackin, S. Gudes, O. (2017) Full-stack engagement: vertical integration and process/precursors that promote bottom-up urban transformation. State of Australian Cities Conference. University of Adelaide, Adelaide, 28-30 November 2017.

Thank you!

https://twitter.com/OriGudes or ori.gudes@unsw.edu.au

and Matthew.Sales@blacktown.nsw.gov.au