livable cities, greener neighbourhoods: sustainable community design in dieppe, new brunswick...
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Livable Cities, Greener Neighbourhoods:
Sustainable Community Design in Dieppe, New Brunswick
Dalhousie University
Thayer Nugent
Jose Canjura
James Bryndza
Objective
To create a Sustainable Community To create a Sustainable Community Design that provides housing and Design that provides housing and protects environmentally sensitive protects environmentally sensitive areas in a subdivision of Dieppe, New areas in a subdivision of Dieppe, New Brunswick Brunswick
How does the current regulatory How does the current regulatory framework encourage or restrict the framework encourage or restrict the design, and what changes would help design, and what changes would help implement it?implement it?
Method
• Site analysis conducted by biologists from the Universite de Moncton and NBCC Moncton
• Literature Review
• Design process
• Policy and plan review
• Affordable housing
• Recommendations
Background
• Dieppe population is 15,000 and growing• Economy is healthy• Need for an open space network• Rise in the demand for semi-detached homes and
apartments
• Development pressure: how to accommodate it?
Sustainable Community Design
• Inspired by Conservation Design
• Principles: – connected open space– compact living
• Community Resource Inventory– Primary/secondary conservation areas– Potentially developable area
• Different density options: gross versus net
• Flexible applications: continuum of encouragement
Site Background
• The site is 25.7 acres (10.053 ha), located approximately 3.5 km from the city centre
• Urban fringe area, low density
The Site
Sum m ary for Property ha acre %
Total Sensitive Zones 1.597 3.95 15%Total Buffer 1.992 4.92 19%Total Prim ary conservation area 3.589 8.87 35%Total Significant Zones 2.809 6.94 27%Total Secondary Conservation area 2.809 6.94 27%Total Prim ary + Secondary Conservation area 6.398 15.81 62%Total PDA Zones 4.009 9.91 39%Total Property Area 10.380 25.65 100%
Conventional Yield Plan
Basic Conservation – 21 units Basic Conservation – 43 units
Basic Conservation 71 units
Medium Density
Upper Medium Density
Urban Density
• Most homes are single unit dwellings
Enhanced Conservation– 39 Enhanced Conservation–78 units
Enhanced Conservation –
107 units
Medium Density
Upper Medium Density
Urban Density
Village Design – 71 units Village Design – 143
Village Design – 179
Medium Density
Upper Medium Density
Urban Density
Recommended Design Concept
Recommended Design – Land Use Map
Comparing the alternatives
What current zoning (RA) allows:2 hectare lots
What R1 zoning allows:Single unit dwellings as main use (with some low intensity secondary uses).Lot area: 540 m2Frontage: 18 mSetback: 6 m
Regulatory FrameworkRegulatory Framework
Regulatory Framework
• Municipal Policy:– Municipal Development Plan– Subdivision By-law– Zoning By-law
• Provincial Policy:– Community Planning Act– Condominium Act– Conservation Easement Act– Watercourse Regulations
How to make SCD possible: Site specific
Two implementation options:
• Change zoning from RA to ID
• Create a development scheme
Different housing types/tenure couldprovide affordable housing options
How to make SCD possible:general recommendations
• Community Resource Inventory– Would identify optimal areas for
development – Open spaces should be connected and
incorporated into proposed trail network plan
• Review MDP– To encourage open space connectivity– Review Minimum road standards
How to make SCD possible, cont…
• Zoning by-law– New mixed use zone – could allow
developer option of SCD– Integrated open space zone
• Subdivision by-law– Too rigid: lot sizes, frontages, lot types,
road sizes
• Legislation to protect open space– Multiple holdings
Thank you.Questions?
For more information
Please contact
• For general concept: Department of the Environment and Local
Government – Daniel Savard (506) 444-4391, [email protected]
• Local implementation: Ville de Dieppe - André Daigle (506) 877-7900,
• Support organizations: Conservation Development Alliance – John-Paul
Warren (416) 467-1339, [email protected]