SCI-Network - Sustainable Construction @ Innovation through Procurement

SCI Network - SCI-Network - Sustainable Construction @ Innovation through Procurement

Passive social housing in southwest Finland

In 2009, Right of Occupancy Housing of Southwest Finland Ltd, a housing company owned largely by the nearby cities, started a joint development project in the City of Naantali with relevant stakeholders. The objective of the project was to plan and implement the first semidetached and terraced house in Finland which fulfils the Finnish passive house criteria. The project was funded by the Housing Finance Development Centre of Finland (ARA). The expertise of the procurement team was ensured by selecting expert partners through an open tender procedure in January 2010. The expert partners for the planning phase included an energy expert, a head designer and a contract consultant. Both separate tenders and consortia were accepted and the final winners consisted of three separate consultants.

The tenders were evaluated according to the innovativeness of the work plan, professional characteristics, expertise of the tendering organisation and pricing.

The Finnish Association of Building Owners and Construction Clients, RAKLI, held two procurement clinics for the potential constructors and technology suppliers. Procurement clinics are open, interactive workshops to facilitate market dialogue between potential service providers, consultants, contractors and investors. In the workshops, the procurement problems are analysed and recommendations given for solving the problems. Eleven suppliers participated in the clinics that played a major role in the project. During the clinics it became evident that the plans were unrealistic in relation to the budget.

It was not possible to exceed the predefined price without losing customers, thus the costs needed to be cut. The originally planned energy sources were too large and economically ineffective for a passive house with low energy needs. Consequently the energy source was changed from the planned heat pumps or bioenergy into direct electricity and solar collectors. The original plan also included one-storey buildings, which were now replaced with two storey buildings. The higher buildings allowed more residential squares inside the expensive outer shell. However, the total number of residential square metres did not increase notably and it was still less than the town plan would have allowed for.

The clinics also included a customer satisfaction survey. The housing development team, representing inhabitants of the Right of Occupancy Housing of Southwest Finland Ltd, was also present at the clinics, and commented on the plans also later on. The future inhabitants will be trained in energy-saving measures and their opinions and energy consumption will be surveyed. The procurer was satisfied with the results of the procurement clinics, although the method was fairly time consuming.

Without the clinics, the project would not have been able to maintain its budget.It was especially beneficial that the wishes and background information of the potential users were documented and analysed. The construction of the housing area started at the beginning of 2012 and the buildings are likely to be finalised
by the end of March 2013.

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