Studio E_Research Journal_Dristi Chakma

Conceptual Design

Studio E-07 | Backyard Futures: Movable Homes Studio Research Journal by

Dristi Chakma | 1420680

Backyard Futures:

Movable Homes Studio

“As part of Homes Victoria’s social housing portfolio, Homes Victoria offers a small, relocatable self-contained home, built in the rear yard of a property for renters to live near supporting family and/or friends. The current product is expensive to relocate, is difficult to modify for accessibility needs, lacks contemporary design and sustainability considerations, and does not look appealing.”

CONTENT

Studio Leader : Darcy Zelenko & Tim Randall

Brief :

• Introduction to Integrated Design Studio

• Overview of Homes Vic Brief

Lectures/Presentation :

• Industrialized Construction Benefits/B4.0 (Darcy Zelenko)

• Accessibility & NCC (Tim Randall)

• Environmentally Sensitive Design (Lucy Marsland)

• Lean Construction & Design for Manufacture & Assembly (Gao Shang)

• Candour Modular Construction (Jas Johnston)

• Industrialized Construction (Duncan Maxwell)

Site Visit • Homes Victoria movable unit, Chadstone

• MODSCAPE Site Visit

Additional Research

Environmental Analysis

Cost Analysis

INTRODUCTION TO INTEGRATED DESIGN STUDIO

Architecture

• Serious about good design

• Capable passionate individuals

• Empowered environment

• Procure right behaviors (Performance based fees/alliance/IPD/ multi-disc...)

• Brief integrated design

• Establish common design environment

• Instill third party integrated design facilitator

Integrated Design Studio (IDSs)

Teaching

How To Implement Integrated Design in a Project?

• Understand limitations of traditional design

• Set common goals/incentives

• Joint return brief development

• Understand & Value the ‘other’ Encourage mutual learning & coauthorship

• Emphasis creativity & flexibility (in everything)

• Stipulate multi-functionality

How To Integrate a Designer?

• Establish face to face relationships

• Multiple disc’s at table (incl. Client)

• Allow time to up-skill / value experience

• Design from end use

• Don’t let cost kill ideation too early

• Reg. Multi-disc, critiques evaluating against goals

• Make process transparent

Key Takeaways :

Integrated Design Studios (IDSs) teach collaboration across architecture and engineering, involving students, academia, clients, and consultants. Key to success are a dedicated team, performance-based procurement, shared workspaces, and third-party guidance. Emphasizing mutual learning, creativity, and open communication, IDSs focus on practical design outcomes while avoiding early budget limitations to foster innovative solutions1.

OVERVIEW OF HOMES VIC BRIEF

Existing Layout:

Design Considerations :

1. Ability to relocate

2. Sustainability & energy efficiency

3. Flexibility to improve accessibility

4. Aesthetic appeal

Key Takeaways :

• Typical Configuration Square (6m X 6m)

Rectangle (5m X 8m)

• Currently 1,070 Movable Units

• Approximately 985 are occupied2

• Number of transfers averages around 100 per year,

• Average cost of $70,500 per transfer (including repairs and modifications).

• Construction of a new unit is estimated at around $90k

• The overall cost to manufacture a completed movable unit should be in the order of $100k.

2. Homes Victoria Movable Units- Concept Design Brief, University Partnership

HOMES VICTORIA MOVABLE UNIT, CHADSTONE

7 EULA COURT

INDUSTRIALIZED CONSTRUCTION BENEFITS/B4.0 (Darcy

Zelenko)

Demystifying Volumetric Construction: A Study of the Bathroom Pod

Volumetric construction can speed up building times, enhance quality, and reduce waste. Despite these benefits, higher transportation costs, structural redundancies, and increased overheads can limit its use. In Australia, bathroom pods are a widely accepted volumetric assembly in multi-storey buildings. This project explores the complexities of volumetric construction through bathroom pods, looking at different business models, design methods, and production strategies to understand how manufacturing practices are being applied3

While traditional site-based bathroom construction offers greater flexibility and customization, volumetric off-site construction provides significant benefits in terms of speed, quality control, waste reduction, and cost certainty.

Modular construction in Factory makes the production more faster, efficient and less waste with certain fabrication from the beginning. Predetermined process and use of robotic automation provides greater quality with fixed cost and timelines. Construction speed 50% faster than traditional on site builds.

Volumetric Construction system thus provides more reduced embodied carbon due to offsite construction. Reduce material waste and environmental impact.

Factory-controlled conditions ensure consistent quality and precision in the assembly of building modules, minimizing thermal bridging and air leakage, which can contribute to improved energy performance and reduced heating and cooling loads.

ACCESSIBILITY & NCC

• The NCC includes regulations to ensure buildings are accessible to people with disabilities.

• It comprises three volumes, which cover different types of buildings (Commercial and Residential) and their requirements4

Dwelling Access:

• A continuous path to a dwelling entrance door

• A step ramp has a maximum gradient of 1:14 in the direction of travel

• Minimum width of 1000 mm.

Dwelling Entrance:

• A minimum clear opening width of 820 mm

• Step-free door threshold

• 1200m x 1200mm clear space

• Weather-proof entry

• Provision of a channel drain

• Damp proof courses and flashings

• Termite prone areas, be designed and constructed to enable termite inspection.

Sanitary Compartment:

• Minimum clearance in front of pan 900mm x 1200mm

Shower:

• The shower to Be hob-less

• Have a step-free entry

• And a lip not more than 5 mm in height5

Classifications : Specialist Disability Accommodation National Disability Insurance Scheme6

LEAN

MAXIMIZING VALUE

LEAN CONSTRUCTION ENHANCING PRODUCTIVITY

Definition and Approach:

Lean Construction aims to design production systems to minimize waste of materials, time, and effort, maximizing value (Koskela et al., 2002).

The Lean Construction Institute (LCI) describes it as a production management-based approach useful for complex, uncertain, and fast-paced projects7

The Concept of Waste as Understood in Lean Construction

My understanding of waste in construction has been changed. It is not just about material waste. It goes beyond that!

Lean construction identifies waste as any activity not adding value to the customer. Significant inefficiencies include rework, low labor efficiency, and material waste. Adopting lean principles from manufacturing can improve overall productivity and performance.

Ease of

Ease of DFMA

Design for Manufacture and Assembly

Off-site and automation On Site

Value Stream Mapping (VSM)

Activities

VOLUMETRIC CONSTRUCTION

Opportunities

DfMA, part of the Design for Excellence (DfX) framework, includes Design for Manufacture, Assembly, Transportation, Sustainability, and more. It focuses on off-site manufacturing and automation.

Challenges

• Fast Production • Off-Site • Controlled Setting • Transportation • Costly

Choosing by Advantage (CBA)

• Identify Alternatives

• Define Factors

• Define must have/want to have criteria for each other

• Describe the attributes of each alternative

• Decide the advantages of each alternatives

• Decide the importance of each advantage

• Evaluate Cost Data

Key Takeaways

:

Lean Construction and DfMA can greatly improve efficiency and value in construction projects by reducing waste and enhancing process flexibility and transparency.

With the help of Value Stream Mapping, both opportunities and challenges can be identified in Volumetric Construction System.

Also using CBA analysis technique the choice of materials further could be evaluated by identifying several factors such as embodied carbon emission, thermal performance, pricing and their availability.

It is possible to reduce whole life carbon emission drastically just by applying solar panel in both cases.

Mass Timber Structure (CLT &

Steel Structure

Lightwight Timber Structure

Mass Timber Structure (CLT & GLT)

Lightwight Timber Structure

With 12 Solar Panel

EPIC GRASSHOPPER

+ TIMBER CLADDING

+INSULATION + TIMBER CLADDING

GLULAM

Without Solar Panel

No of solar Panel : 0

Solar Angle: 0

Orientation: Operational Carbon: 306t

Solar Panel (North-West)

No of solar Panel : 11

Solar Angle: 30

Orientation: North-West Operational Carbon: -15t

Solar Panel (South-East)

No of solar Panel : 13

Solar Angle: 10

Orientation: South-East Operational Carbon: -14t

Solar Panel (North-Wast)

No of solar Panel : 4

Solar Angle: 10

Orientation: South-East

Solar Panel (North-Wast)

No of solar Panel : 8

Solar Angle: 30

Orientation: North-West Operational Carbon: -15t

Total Kwh =12x440W= 5Kwh

Reduced Opertional Carbon 320tonnes

Suburban Site

Address: 17 CAMPASPE CRESCENT, KEILOR 3036

Local Government Area (Council): BRIMBANK

Planning Scheme: Brimbank

Site Features and Constrain

The backyard of the existing house is has a slope of 2m from the road level.

A significant constrain for the site is accessibility having 60m long plot with only one sided access road.

80T CRANE is suggested to assure maximum reach of 52m.

Site Overlays

Development Contributions Plan Overlay

Design and Development Overlay

Aboriginal Heritage Overlay

• Low impact Building

• Touching the ground Lightly

• No harm on existing vegetation

Bush fire Overlay

• Provision for Fire rated material

• Fire Rated Timber (Silvertop Ash BAL rating of 29 )

• Fire Rated Glass

• Fire-resistant Insulation (Mineral wool)

Airport Overlay

• Noise attenuation Measure

• Double Layer Glass

• Insulated wall

Site B : Suburban

Address: 17 CAMPASPE CRESCENT, KEILOR 3036

Local Government Area (Council): BRIMBANK

Planning Scheme: Brimbank

Site Features and Constrain

The backyard of the existing house has a slope of 2m from the road level. A signi cant constrain for the site is accessibility having 60m long plot with only one sided access road. 80T CRANE is suggested to assure maximum reach of 52m.

1. Development Contributions Plan Overlay

2. Design and Development Overlay

3. Aboriginal Heritage Overlay

a. Low impact Building

B : Suburban

Bushfire Attack level Calculator

https://best-practices-assessment-tool.herokuapp.com/calculator?slope=-10&vegslope=-30&FFDI=100&vegtype=Rainforest

https://mybuildingcertifier.com.au/forms/MBC-BAL-29-Summary.pdf

https://www.bushfiredesignconsultants.com.au/bal-29

https://ash.com.au/blog/specifying-ironash-timber-cladding-in-bal-29-bal-40-and-balfz-rated-fire-areas/

b. Touching the ground Lightly

c. No harm on existing vegetation

4. Bush fire Overlay

Address: 17 CAMPASPE CRESCENT, KEILOR 3036

a. Provision for Fire rated material

Local Government Area (Council): BRIMBANK

b. Fire Rated Timber (Silver top Ash BAL rating of 29)

c. Fire Rated Glass (AS 1530 compliance, FRL of -120/120.)

Planning Scheme: Brimbank

d. Fire-resistant Insulation (Mineral wool)

Site Features and Constrain

5. Melbourne Airport Environs Overlay

a. Noise attenuation Measure

b. Double Layer Glass

c. Insulated wall

The backyard of the existing house has a slope of 2m from the road level. A signi cant constrain for the site is accessibility having 60m long plot with only one sided access road. 80T CRANE is suggested to assure maximum reach of 52m.

1. Development Contributions Plan Overlay

2. Design and Development Overlay

3. Aboriginal Heritage Overlay

a. Low impact Building

b. Touching the ground Lightly

c. No harm on existing vegetation

4. Bush fire Overlay

a. Provision for Fire rated material

b. Fire Rated Timber (Silver top Ash BAL rating of 29)

c. Fire Rated Glass (AS 1530 compliance, FRL of -120/120.)

d. Fire-resistant Insulation (Mineral wool)

5. Melbourne Airport Environs Overlay

a. Noise attenuation Measure

b. Double Layer Glass

c. Insulated wall

Construction Standards to Comply with AS3959:2018 (Construction of building in bushfire-prone areas) for Bushfire Attack Level (BAL) - 29 (High) Construction Standards to Comply with AS3959:2018

of building in bushfire-prone areas) for Bushfire Attack Level (BAL) - 29 (High)

Iron Ash Timber Cladding

Site

Dimension x Prefabricated House

https://www.schneider-holz.com/en/products/timber/open-box-element/clt-box-roof/

Installion of Floor Membrane

Physical Model