Case Study - Floth 69 Robertson Street, Fortitude Valley

Building Details

Building Name Floth 69 Robertson Street, Fortitude Valley
Construction / refurbishment dateSat, 15/08/2015
Building Size1772m2 Gross Floor Area ; 1042m2 Net Lettable Area
Building Type
Residential (single)
Residential (multi-unit)
Address 69 Robertson Street
Fortitude Valley
Region Australasia

Performance Details

Health and Wellbeing

Buildings or projects that display best practice approaches that enhance the health and wellbeing of their occupants, and as such have been verified and certified as "healthy" projects.

Qualification criteria:NABERS Indoor Environment
Qualification level achieved, if applicable:6 stars (first in Australia - May 2016)
Other certification scheme and level achieved, if applicable:6 stars Green Star - Design & As Built v1.1 (first in Australia - November 2015)
Verification year:2016

Net Zero Operational Carbon

Buildings or developments that display best practice outcomes in energy efficiency, are powered by renewable energy, and as such have been verified and certified as "net zero energy and/or carbon" projects.

Qualification criteria:Other (please state below, subject to approval by WorldGBC)
Qualification level achieved, if applicable:NCOS NABERS Carbon Neutral, which is the same scheme as NCOS Green Star Carbon Neutral (First in Queensland - February 2019)
Other certification scheme and level achieved, if applicable:Recognised as first ASBEC Zero Carbon Standard Building in Australia - December 2016
Energy Use Intensity (EUI):47.38kWh/m2 NLA/yr - base building ; 112.09kWh/m2 NLA/yr - whole building (including tenants)
Onsite Renewable Production Intensity (RPI):20.6kWh/m2/yr
Offsite Renewable Energy Procured:49,372.2kWh/yr - base building; 116,797kWh/yr - whole building (including tenants)
Offsite renewable energy procurement source:Accredited GreenPower
If offsets are relied upon to achieve net zero carbon, provide details here:15 CERs (Certified Emission Reductions) purchased and cancelled from United Nations Carbon Offset Platform
Verification year:2019

Submitter's Details

Organisation Floth
Member of GBC Green Building Council of Australia

Additional Details

Floth is one of Australia’s leading building services and engineering consultancy practices. For more than 30 years we have worked on major projects in Australia and Asia earning a reputation for commercially viable and sustainable designs. Floth is also committed to rigorous environmental management of operations that are continuously improved in order to maintain our ISO 14001 certified Environmental Management System that has been in place since 2010. 

Floth's head office building in Brisbane's Fortitude Valley received the first 6 Star Green Star Design and As Built v1.1 certified rating in Australia in November 2015. Floth developed and occupy the office building and undertook the building services engineering and Environmentally Sustainable Design (ESD) in house. Also at that time the building was recognised as the first to meet the Australian Sustainable Built Environment Council's (ASBEC) standard definition of a zero carbon building by virtue of highly energy efficient design, 28% on-site renewable energy contribution from roof-mounted photovoltaic system and 100% Greenpower purchase to offset remaining operational emissions. The first 6 star National Australian Built Environment Rating System (NABERS) Indoor Environment rating awarded in May 2016 completes a hat trick of Australian firsts achieved by the building. In addition to local and national awards, in October 2016 the building became the first Australian winner of a WorldGBC Asia Pacific Leadership in Sustainable Design and Performance Award. 

Floth has achieved all of these milestones thanks to a variety of features. Low-VOC paints, sealers and floor coverings and low formaldehyde engineered wood products helped Floth achieve a NABERS score of 97% for air quality. Continuous monitoring sensors are located in all office and meeting zones so that good air quality, defined as below 800 parts per million (ppm), can be consistently delivered. Post-occupancy spot testing showed better than anticipated performance with CO2 at 625 ppm, zero formaldehyde readings, and very low readings for VOCs and particulate matter (PM10). For thermal comfort, the building design incorporates a High-performance envelope with low-e double glazing, thermally insulated assemblies and integral shading provided by articulation and balcony elements. An LED lighting system, with a power density of less than six watts per square metre, is automatically controlled with occupancy and daylight sensors.

Floth used the Building Occupants Survey System Australia (BOSSA), which is an occupant perception survey tool for Australian office buildings. Occupants were asked to rate their overall satisfaction on a seven point scale ranging from negative to positive. Occupant satisfaction and building performance in the old office were below the BOSSA benchmark in six out of nine areas, resulting in dissatisfaction among staff. Survey results in the new office shows that it has now exceeded the BOSSA benchmark in all areas, with particularly high scores on spatial comfort, indoor air quality and building image and maintenance. The percentage of employees satisfied with the overall performance, health and productivity of the new building is 94.5%

Floth head office was also featured in WorldGBC publication - Doing Right by Planet and People - in April 2018. Achieving NCOS Carbon Neutral certification in February 2019 was a natural progression of Floth’s sustainable policies and the building’s accomplishments to date.

"Achieving NCOS Carbon Neutral certification in February 2019 was a natural progression of Floth’s sustainable policies and the building’s accomplishments to date."