B UILDING & M ANAGEMENT
V OLUME 3 I SSUE 2 M AY - A UGUST 2019
T HE CIT Y F I ED M ETHODOLOGY FOR CITY RENOVATION AT DISTRICT LEVEL
E. V ALLEJO , C. C RIADO , E. A RRIZABALAGA , G. M ASSA AND A. V ASALLO (2019). B UILDING & M ANAGEMENT , 3(2): 23-33
and CO2 emissions savings keeping in mind the final purpose.
In parallel, recommendations on the identification of different
general barriers and drivers, as well as the synergies between
the measures are provided in the methodology.
order for the evaluated scenarios in a simple way that can be
used by the municipalities for making the final choice.
3.3.5 P HASE V: S TRATEGIES FOR S USTAINABLE U RBAN R ENOVATION
(SSUR)
Finally, also to facilitate the decision-making process, the
‘Level 2: CITyFiED project indicators’ can be calculated for the
selected district and the individual application of each
measure to assess the impact of each ECM on the district.
The main objective of Phase V is the definition of the Strategy
for Sustainable Urban Renovation, according with the results
obtained from Phases I to IV.
Finally, the measures selected are combined in retrofitting
scenarios that aid to predict the results of a package of ECMs
application. These scenarios are proposed to be generated
selecting the measures attending to their cost of emission
mitigation [€/kg CO2 emissions savings]. Three kinds of
scenarios are defined according to this ratio: basic (for those
minimum measures that accomplish with the regulation on
energy performance), efficient scenarios and advanced
scenarios. This strategy is materialized as a synthesis document, which
includes guidelines and recommendations in order to support
the strategy implementation and ensure its goals achievement
in the following phases.
3.3.4 P HASE IV: P RIORITIZATION AND SELECTION OF THE INTERVENTION The SSUR document should collect firstly, a review of the work
done in the previous phases, therefore the definition of the city
and district problems and the targets are summarized.
Moreover, the SSUR defines which groups of stakeholders are
necessary for its implementation. Local authorities, especially
the Technical committee – and the ECG if it is desired by the
Municipality – are in charge on the development of this
important document.
SCENARIO
The main objective of the Phase IV is the prioritization of the
alternative scenarios defined for each district. This
prioritization is also a complex process that needs to be
guided by the ECG. In this phase, the methodology proposes
several steps to facilitate the selection of the optimum scenario
taking into account the various criteria, which are in many
cases conflictive between each other.
Secondly, the intervention area will be identified, and the
measures of the selected scenario in Phase IV, are turn into a
strategy within the pathway of the city, by identifying its risks,
providing possible business models or financial mechanism, or
guidelines to the Strategy Implementation Plan (SIP).
Therefore, the municipality needs to interact with the ECG,
other technicians and citizens in the different steps of this
phase as it is described in the following paragraphs. In order to ensure the organisational capability and
stakeholders’ engagement, different processes have to have
been applied during the previous phases, and their main
results will be reported also within this document.
In a first step, the ECG evaluates each scenario according to
the criteria defined, supported by the calculation of KPIs,
which are called in the CITyFiED methodology the Level 2
CITyFiED indicators. These criteria are pre-defined in the
methodology but each municipality can give their opinion
about their relevance influencing the final selection. These
indicators are calculated for each district by the ECG by using
different methodologies such as the LCA and the LCCA among
others. Last but not least, SSUR document collect recommendations to
guarantee the correct implementation of the strategy, for
instance “Project delivery methods and Methods of
Procurement” should be collected in order that the municipality
select the suitable one. “Recommendations for Technical
definition” should be provided ensure the achievement of the
Strategy approach, such as the use of BIM methodology to
enhance the collaborative work, or define the Stakeholders´
responsibilities during the execution and evaluation phases.
In a second step and using a methodology of the Multi-criteria
Decision Analysis (MCDA) theory, the weighting of each
criterion is carried out. The methodology proposes to use the
Analytic Hierarchy Process (AHP) [12] as main multicriteria
methodology for the prioritization phase. All in all, Phase V reflects the concept of strategic planning,
which “refers to a systematic decision-making process that
prioritizes important issues and focuses on resolving them. It
provides a general framework for action by identifying
priorities…” [13].
At this stage, the opinion of the Municipality, the ECG, the
technical experts and the citizens is the basis for the
calculation of the weight that corresponds to each criterion. As
a result of this second step, each scenario will have a final
punctuation which takes into account simultaneously the results
of this scenario for each criterion. This provides a prioritization
3.3.6 P HASE VI: E XECUTION PLAN
The strategies included in the SSUR are defined in detail and
put into practice in this phase, according to a SIP developed in
this phase. It includes the recommendations pre-defined from
previous Phase V, acting as an overall execution plan that
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