intervention strategies for renovation of social housing estates

Directed to PHYSICAL ASPECTS (functional - technical)
EXISTING DWELLINGS NEW DWELLINGS
6
Extent livable space by attaching new boxes to
the façade
Improvement of housing differentiation;
Vertical-horizontal extension/contraction of dwellings;
Wider glazing improve day lighting;
Shading the facade
7
Addition of units on the top floor (‘optoppen’)
8
Low-rise attached at the bottom (‘courtyard’)
9
‘Maisonette with patio’ attached at the bottom
by matching ground and first floor
10
‘Maisonette with private garden’ attached at the
bottom by matching ground and first floor
Improvement of housing differentiation;
Improvement of housing differentiation;
Improvement of housing differentiation;
Improvement of housing differentiation;
Vertical-horizontal extension/contraction of dwellings; Vertical - horizontal extension of dwellings;
Vertical - horizontal extension of dwellings;
Vertical - horizontal extension of dwellings;
Make use of unused rooms: Italian wash-houses on top Soften the shift from high to eventual low-rise nearby; Soften the shift from high to eventual low-rise nearby; Soften the shift from high to eventual low-rise nearby;
floor of residential blocks could be converted into Make use of the short span at the ground floor; Make use of the short span at the ground floor; Make use of the short span at the ground floor;
housing (see the case of the in-line and towers blocks in When porticoes at the ground floor improving of energy When porticoes at the ground floor improving of energy When porticoes at the ground floor improving of energy
Laurentino 38);
savings;
savings;
savings; S
Local regulation (in Italy size and number of rooms of Local regulation (in Italy size and number of rooms of
social dwellings are subjected to restrictions provided social dwellings are subjected to restrictions provided
by law, as well as increase of cubature);
by law, as well as increase of cubature);
Local regulation with respect to its integration with the Local regulation with respect to its integration with the
surroundings;
surroundings;
Obstruction of day lighting due to extended projections; Required elevator if more than 4 storeys;
High of ceiling can be a limitation when the addition is Structural capacity of the block (in many Italian
placed at the bottom (in Italy 270cm is the minimum highresidential
blocks, like Laurentino 38, tenants made
for housing. Extension could be difficult when the
bottom is 240 cm high)
Structural capacity of the block (in many Italian
residential blocks, like Laurentino 38, tenants made
inner changes. Alterations they made, like moving of
walls and/or big openings, have to be calculated to
design the combinations);
Technical restrictions if used the tunnel technology
(anchorages of extensions restricted to location of
walls/floors of the tunnel, and its horizontal tie-rods;
better new structures hanged to the tunnel to prevent
overloading of existing floors; thickness of new
horizontal structures needs to be compatible with
existing floors).
***
Break of repetitiveness. Transform massiveness and
silhouette ;
Better appearance if using materials that remind good
quality housing (no cheap materials like masonry or
plastic)
Repetition of the same solution (like shape and
material) could replicate initial problems;
Short lasting materials shorten 'wow effect' of
renovation
Improve sense of identification with own block and
dwelling;
Improvement of orientation in the neighborhood by new
appearance;
Addition of outdoor space which is though to be very
important both in terms of well-being (more space) as
well as offers place to dry wash which improves indoor
air quality.
Possible lack of safety when attaching livable volumes
at the bottom (this could be particularly true in very
deprived Italian neighborhoods like Laurentino 38);
People could feel uncomfortable with very extended
projections;
Effectiveness of the renovation design are subjected to
preferences of people;
When the external wall is in good physical conditions,
the new extension can improve the performances of the
envelope preserving the existing facade (advantages in
terms of technical and financial effort) (this could be
particularly effective in those Italian residential blocks
like Laurentino 38 where it has been used the tunnel
technology);
Differentiation of housing supply leads to differentiation
of market position of dwellings;
Leads to a substantial improvement of the dwellings'
quality;
Renovation works could be very quick (a few weeks);
Tenants can stay their dwellings during the works;
Relevant transformation of appearance could be used
as a window sponsoring the restructuring of the area;
Could be used as a selling point
Cutting the reinforcements to detach the panels might
be technically difficult - expensive (see 4, 5);
Need for an ad-hoc regulation to manage the
transformation;
In the case of tunnel technology, adaptation of existing
openings when the external wall is in good condition or
entire substitution of the wall can be expensive and
technically difficult (this is the case of the blocks in
Laurentino 38);
Location and competition with other neighborhoods
could be an obstacle in attracting other target groups;
Need of technical expertise;
Attract different target groups could be difficult even
when the appearance substantially change;
Relevant transformation of the appearance could be
subjected to the approach undertaken by the housing
association;
inner changes. Alterations they made, like moving of
walls and/or big openings, have to be calculated to
design the combinations);
Need of light building technologies (wood - steel
structures);
Technical restrictions depend on the bearing structure:
location, span (when used the tunnel up to 5m or fixed
2.8, 3.5, 4.5m) and orientation of baring walls, or to the
elements discharging the weigh on them
*/**
Depending on type and architectonic characteristics,
transforms silhouette and massiveness;
Better appearance if using materials that remind good
quality housing (no cheap materials like masonry or
plastic)
Lack of integration with the rest of the block;
Vertical extension of the block alters the urban shape;
Short lasting materials shorten 'wow effect' of
renovation
Provision of housing for wider groups;
Italian wash-houses on top floor of residential blocks
could be converted into housing (see the case of the inline
and towers blocks in Laurentino 38);
Extension of free choice;
Improvement of sense of identification with own block
and dwelling;
Improvement of orientation in the neighborhood by new
appearance;
Increasing attractiveness for other groups
Effectiveness of the renovation design are subjected to
preferences of people;
Increasing attractiveness for other groups
Differentiation of housing supply leads to differentiation
of market position of dwellings;
Relevant transformation of appearance could be used
as a window sponsoring the restructuring of the area;
Need for an ad-hoc regulation to manage the
transformation;
Location and competition with other neighborhoods
could be an obstacle in attracting other target groups;
Need of technical expertise;
Attract different target groups could be difficult even
when the appearance substantially change;
Relevant transformation of the appearance could be
subjected to the approach undertaken by the housing
association;
Local regulation (in Italy size and number of rooms of
social dwellings are subjected to restrictions provided
by law, as well as increase of cubature);
Need of space for new construction;
High of ceiling when addition uses the bottom (in Italy
270cm is the minimum high for housing. Attaching new
low-rise could be difficult when the bottom is 240 cm
high. See solution in Tab. 8, Chapter 4);
Technical restrictions if used the tunnel technology (to
place new openings into the floors consider location of
reinforcements (horizontal tie-rods); high of rooms
should not interfere with reinforcements of walls (tierods
and clamps are usually placed up to 240cm from
the façade);
Thermal insulation of new external walls is required.
*/**
Depending on the design;
Better appearance if using materials that remind good
quality housing (no cheap materials like masonry or
plastic)
Lack of integration with the rest of the block;
The most relevant transformation regards the
surroundings rather than the block itself;
Short lasting materials shorten 'wow effect' of
renovation
Provision of housing for wider groups;
Extension of free choice;
Prevention of abandonment or improper use of open
spaces;
Reduction of uncontrolled public spaces (this could
work in very deprived Italian neighborhoods like
Laurentino 38 to prevent also thefts);
Improvement of privacy being the building core within
the courtyard;
People back to the street;
Possible lack of safety because of the direct spatial
relationship of housing and surroundings (this could be
particularly true in very deprived Italian neighborhoods
like Laurentino 38);
Differentiation of housing supply leads to differentiation
of market position of dwellings;
Could lead to a decrease of shared spaces resulting in
less expenses for maintenance;
No special expertise is required;
Need for an ad-hoc regulation to manage the
transformation;
Location and competition with other neighborhoods
could be an obstacle in attracting other target groups;
If renovation regards also the surroundings, effective
management of the building site is required;
Local regulation (in Italy size and number of rooms of
social dwellings are subjected to restrictions provided
by law, as well as increase of cubature);
Local regulation with respect to its integration with the
surroundings;
Need of space for new construction;
High of ceiling when addition uses the bottom (in Italy
270cm is the minimum high for housing. Attaching new
low-rise could be difficult when the bottom is 240 cm
high. See solution in Tab. 8, Chapter 4);
Technical restrictions if used the tunnel technology (to
place new openings into the floors consider location of
reinforcements (horizontal tie-rods); high of rooms
should not interfere with reinforcements of walls (tierods
and clamps are usually placed up to 240cm from
the façade);
Thermal insulation of new external walls is required.
*/**
Depending on the design;
Better appearance if using materials that remind good
quality housing (no cheap materials like masonry or
plastic)
Lack of integration with the rest of the block;
The most relevant transformation regards the
surroundings rather than the block itself;
Short lasting materials shorten 'wow effect' of
renovation
Provision of housing for wider groups;
Extension of free choice;
Improvement of social control at the bottom;
Prevention of abandonment or improper use of open
spaces;
Reduction of uncontrolled public spaces (this could
work in very deprived Italian neighborhoods like
Laurentino 38 to prevent also thefts);
Increasing attractiveness for other groups
Possible lack of safety because of the direct spatial
relationship of housing and surroundings (this could be
particularly true in very deprived Italian neighborhoods
like Laurentino 38);
Less housing privacy (this is true in the Italian context
where apartments at the ground floor are protected with
solid fences to prevent overlooking. Curtains are often
not enough to get the feeling of being visually protected
from the street);
Higher chance of criminality (thieves could have easier
access);
Increasing attractiveness for other groups
Differentiation of housing supply leads to differentiation
of market position of dwellings;
Could lead to a decrease of shared spaces resulting in
less expenses for maintenance;
No special expertise is required;
Need for an ad-hoc regulation to manage the
transformation;
Location and competition with other neighborhoods
could be an obstacle in attracting other target groups;
If renovation regards also the surroundings, effective
management of the building site is required;
Local regulation (in Italy size and number of rooms of
social dwellings are subjected to restrictions provided
by law, as well as increase of cubature);
Need of space for new construction;
High of ceiling when addition uses the bottom (in Italy
270cm is the minimum high for housing. Attaching new
low-rise could be difficult when the bottom is 240 cm
high. See solution in Tab. 8, Chapter 4);
Technical restrictions if used the tunnel technology (to
place new openings into the floors consider location of
reinforcements (horizontal tie-rods); high of rooms
should not interfere with reinforcements of walls (tierods
and clamps are usually placed up to 240cm from
the façade); thermal insulation of new external walls is
required);
Thermal insulation of new external walls is required.
*/**
Depending on the design;
Better appearance if using materials that remind good
quality housing (no cheap materials like masonry or
plastic)
Lack of integration with the rest of the block;
The most relevant transformation regards the
surroundings rather than the block itself;
Short lasting materials shorten 'wow effect' of
renovation
Provision of housing for wider groups;
Extension of free choice;
Improvement of social control at the bottom;
Prevention of abandonment or improper use of open
spaces;
Reduce the share of uncontrolled public spaces (this
could work in very deprived Italian neighborhoods like
Laurentino 38 to prevent also thefts);
Increasing attractiveness for other groups;
Increase livability and green in the neighborhood
Possible lack of safety because of the direct spatial
relationship of housing and surroundings (this could be
particularly true in very deprived Italian neighborhoods
like Laurentino 38);
Less housing privacy (this is true in the Italian context
where apartments at the ground floor are protected with
solid fences to prevent overlooking. Curtains are often
not enough to get the feeling of being visually protected
from the street);
Higher chance of criminality (thieves could have easier
access);
Increasing attractiveness for other groups
Differentiation of housing supply leads to differentiation
of market position of dwellings;
Could lead to a decrease of shared spaces resulting in
less expenses for maintenance;
No special expertise is required;
Need for an ad-hoc regulation to manage the
transformation;
Location and competition with other neighborhoods
could be an obstacle in attracting other target groups;
If renovation regards also the surroundings, effective
management of the building site is required;
PHYSICAL ASPECTS (technical-functional)
APPEARANCE
SOCIAL ASPECTS
FEASIBILITY
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S
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