The National Board of Housing, Building and Planning have been conducting housing needs assessments since 1995 (Boverket 2015). The latest assessment was conducted in 2015 and showed that 71,000 homes will need to be built annually by 2020. To be able to contribute to building more homes, Willhem AB is carrying out a project called ”Så bygger vi för alla”. As part of the work, this thesis will examine the building rules and how they can contribute to innovation. The purpose of this thesis is to investigate which rules, laws and norms we have to keep to in Sweden regarding housing construction. The aim of the work is to investigate whether the regulatory framework can create creativity amongst the players in the market. This thesis is limited to examining which laws, government policies and eventual municipal requirements that exist in Sweden. Therefore, industry rules, such as the AMA, and contracting regulations, such as AB and ABT, will not be taken into consideration. The survey is also limited to newly built multifamily houses only. Finally, the reference objects that are studied in the thesis will be in Sweden and be limited to being either construction-technical or plan-based innovative and have been recently executed. This thesis is based on the existing regulations and theories from previous studies. The data collected for this survey will be studied from a qualitative point of view. The survey aims to investigate a number of reference objects more thoroughly and conduct interviews with key people involved in the project, which means a qualitative approach is best suited. In 1987, Sweden received a new building legislation according to Örnhall (2017), which has resulted in a transition from specification requirements to functional requirements in order to increase the liberty in housing production. However, according to Örnhall (2017 the new legislation has contributed to a wider picture of the regulatory framework. The National Board of Housing, Building and Planning is the authority that has the overall responsibility for community planning, urban development, construction and housing (Nordstrand 2008). The most important laws and government policies that the social planning sector primarily have to obey are the Planning and Building Act (PBL), the Planning and Building Regulation (PBF) as well as and the Swedish National Board of Housing, Building and Planning (BBR) (Örnhall, Swedish Construction Service 2017a). The Planning and Building Act (SFS 2010:900), PBL, regulates the planning for land and water whilst the responsibility for maintaining the regulations lies with the municipalities. The purpose of PBL is to promote social development for long-term, equal, social and environmental sustainable development for today’s society and future generations (SFS 2010: 900). When creating new homes, special consideration should be given to long term use of the home (Boverket 2016). At the interview stage, six areas emerged that were considered to be particularly problematic or interesting for the development of innovative and cheap housing. These areas were; accessibility, municipal requirements, rules, advice and interpretations, energy, innovation and development, and the ability to build for everyone. I perceived the accessibility aspect as very complex. Several interviewees argue that the accessibility requirements entail an increased cost for new builds, in one case it was even expressed that today’s availability requirements means the housing becomes less accessible to a larger group. The rules for creating an inclusive society also emerged at the interview stage while another recurring opinion is the renewal of the legislation. Several interviewees stated that they consider the regulations to be outdated and need to be updated according to today’s society. Based on this, I found The National Board of Housing, Building and Planning requirements contradictory whilst providing support for innovation, many requirements inhibits the development of housing. Therefore, extensive research should be carried out on how people in Sweden want to live today; thereafter the regulations can be updated according to today’s needs. In one way or another, all reference objects have been at the forefront when it comes to housing development. A common factor for the various reference objects is that a major problem was identified in all projects, which led to a product or solution being developed. They show that there is not one solution to the problem, but that different solutions can be found to achieve the same goal: better housing for more people.

During the past years, wooden one and two family houses showed a higher growth rate on the German construction market compared to conventional material like brick and stone. Wood as construction material became more and more attractive. Furthermore, a growing demand on multifamily houses could be recognized, yet, wood has not been considered as an alternative in this field of application until now. Trying to understand the end-users attitudes towards wooden multifamily houses, this licentiate thesis aims at exploring German end-users’ perceptions of wooden multifamily houses. To collect the necessary data, the Association Pattern Technique (APT) was applied, which is a two-stage method and has its foundations in the Means-End theory. In the first stage, 31 in-depth laddering interviews were carried out, which served as the base for the matrix-survey in the second stage, where 229 answers were received. Extending the existing method in the matrix-survey stage allowed for important additional data to be uncovered. The results show that individuals associate certain product attributes with wooden multifamily houses and that these attributes are thought to entail specific consequences. These consequences are in turn linked with the personal values of the respondents. The most dominant perceptual orientations of different groups of respondents are shown and significant differences could be found in how individuals in German perceive wooden multifamily houses depending on age, income and habitation.

The last time Sweden did face a major housing shortage was during the 1960’s. As a solution to the housing shortage, The Million Homes Programme was initiated. The programme did manage to get rid of the housing shortage, but has received a lot of criticism concerning its architecture and environment since its completion. At the time for this study, Sweden is experiencing yet another housing crisis. In order to manage the housing shortage in a more successful way this time, it is important to not down-prioritise the exterior architecture. The exterior architecture plays an important role in creating both an aesthetical appealing and a social sustainable built environment. But the scarcity of housing makes it easy to sell the produced apartments, especially in the larger cities, which reduces the incentives for the developers to prioritise the aesthetics. There is an ongoing debate in Sweden concerning a dissatisfaction with the exterior architecture and there is an absence of research regarding the end-users preferences.  The identified problem that is addressed in this thesis concerns the down-prioritised aesthetics of the exterior architecture in multi-family residential areas in Sweden. The purpose with the study is to identify how housing developers can accomplish an exterior architectural design that is considered aesthetical attractive by its end-users. The study investigates preferences concerning exterior architecture, perceptions of the existing housing supply in Stockholm and how the housing developers can meet the identified preferences. A questionnaire was used as a method to identify peoples’ preferences and perceptions of four multifamily residential housing areas in Stockholm. Interviews were conducted with a housing developer to identify how housing developers can cost-effectively meet the preferences.  The majority of the housing supply, built in what is generally considered to represent a contemporary style, did not satisfy the identified preferences concerning exterior architecture. As the title of this report indicate, the questionnaire respondents considered contemporary areas in general to look more or less like identical boring boxes. It was only the supply built in traditional style that satisfied the identified preferences. That is, the studied housing supply does not meet the end-users demand fully satisfactory. However, the interviews revealed that housing developers can satisfy the identified preferences cost-effectively by accompanying some suggestions of improvements. / Senast Sverige upplevde en bostadskris var under 1960-talet och som en lösning initierades Miljonprogrammet. Miljonprogrammet reducerade bostadsbristen men har sedan det färdigställdes fått motta mycket kritik för sin exteriöra arkitektur och sin byggda miljö. Vid tiden för genomförandet av den här studien, genomgår Sverige ännu en bostadskris. För att hantera bostadsbristen på ett mer framgångsrikt sätt den här gången är det viktigt att den exteriöra arkitekturen inte nedprioriteras. Den exteriöra arkitekturen spelar en viktig roll i skapandet av en byggd miljö som är estetiskt tilltalande och socialt hållbar. Men den stora efterfrågan på bostäder gör det relativt enkelt att sälja de nyproducerade lägenheterna, särskilt i landets större städer, vilket reducerar initiativen för bostadsutvecklare att prioritera det estetiska. En pågående mediedebatt i Sverige vittnar om att det finns ett missnöje rörande dagens exteriöra arkitektur. Dessutom saknas det forskning om hur slutanvändarna faktiskt vill bo.  Problemet som behandlas i den här rapporten rör den nedprioriterade exteriöra arkitekturen i bostadsområden med flerfamiljshus i Sverige. Syftet med studien är att identifiera hur bostadsutvecklare kan uppnå en exteriör arkitektonisk design som anses vara estetiskt attraktiv av sina slutanvändare. Studien undersöker preferenser rörande exteriör arkitektur, hur det befintliga utbudet av bostadshus i Stockholm uppfattas och hur bostadsutvecklare kan möta de identifierade preferenserna. En enkätundersökning användes som metod för att identifiera människors preferenser och uppfattning gällande fyra olika bostadsområden i Stockholm. Intervjuer genomfördes med en bostadsutvecklare för att identifiera hur de kunde möta de identifierade preferenserna kostnadseffektivt.  Majoriteten av det undersöka bostadsutbudet, som är byggt i vad som generellt anses vara nutida stil, tillfredsställde inte de identifierade preferenserna rörande exteriör arkitektur. Precis som rapportens titel indikerar, ansåg enkätundersökningens respondenter att bebyggelsen i våra nutida bostadsområden generellt ser mer eller mindre ut som identiska tråkiga lådor. Det var endast bostadsutbudet byggt i en traditionell stil som tillfredsställde de identifierade preferenserna. Det betyder att den studerade bostadstillgången inte möter slutanvändarnas efterfrågan till fullo. Likväl, intervjuerna visade på att bostadsutvecklarna kan tillfredsställa de identifierade preferenserna kostnadseffektivt genom att följa ett antal förbättringsförslag.

<p>During the past years, wooden one and two family houses showed a higher growth rate on the German construction market compared to conventional material like brick and stone. Wood as construction material became more and more attractive. Furthermore, a growing demand on multifamily houses could be recognized, yet, wood has not been considered as an alternative in this field of application until now. Trying to understand the end-users attitudes towards wooden multifamily houses, this licentiate thesis aims at exploring German end-users’ perceptions of wooden multifamily houses.</p><p>To collect the necessary data, the Association Pattern Technique (APT) was applied, which is a two-stage method and has its foundations in the Means-End theory. In the first stage, 31 in-depth laddering interviews were carried out, which served as the base for the matrix-survey in the second stage, where 229 answers were received. Extending the existing method in the matrix-survey stage allowed for important additional data to be uncovered.</p><p>The results show that individuals associate certain product attributes with wooden multifamily houses and that these attributes are thought to entail specific consequences. These consequences are in turn linked with the personal values of the respondents. The most dominant perceptual orientations of different groups of respondents are shown and significant differences could be found in how individuals in German perceive wooden multifamily houses depending on age, income and habitation.</p>

Äldre flerbostadshus står för en stor del av Sveriges totala energianvändning som behöver sänkas föratt minska klimatpåverkan och klara regeringsmålet om effektivare energianvändning. Examensarbetets syfte är därför att bidra till en ökad kunskap om energieffektivisering genom åtgärder i äldre byggnaders klimatskärm, och om hur åtgärder kan värderas genom energisimulering och livscykelkostnadsanalys. Målet är att identifiera vilka åtgärder som är ekonomiskt och arkitektoniskt lämpliga för äldre flerbostadshus med intresse av att bevara deras karaktär. Det är även att bedöma vilken energibesparing och livscykelkostnad de utvalda åtgärderna genererar. Ett flerbostadshus i centrala Luleå valdes ut som referensbyggnad. Byggnaden är genom sin konstruktion och design representativ för tidseran. Intressanta åtgärder samt åtgärdspaket i dess klimatskal valdes ut. Sedan utfördes en bred litteraturgenomgång om bostadsbyggandet i Sverige 1945–1964, byggnadens energianvändning, energieffektivisering av klimatskalet, de utvalda åtgärderna samt metoderna energisimulering och livscykelkostnadsanalys. Referensbyggnaden dokumenterades och en energisimuleringsmodell byggdes i programvaran IDA ICE. Den nuvarande utformningen av byggnaden simulerades och kalibrerades mot senast uppmätt normalårskorrigerad energianvändning. Sedan utfördes simuleringar för de utvalda åtgärderna och åtgärdspaketen vilka bestämts till tilläggsisolering av vindsbjälklag, byte av fönster till lågenergifönster och tätning av otätheter runt dessa, en kombination av båda tidigare åtgärder (åtgärdspaket 1), tilläggsisolering av fasad och fönsterbyte, samt en kombination av alla tre åtgärder (åtgärdspaket 2). Livscykelkostnaderna för nuläget och för implementering av de olika åtgärderna beräknades genom nuvärdeskostnadsmetoden. Även återbetalningstider beräknades genom simple-payback-metoden. Byggnadens nuvarande utformning gav efter kalibrering en simulerad energianvändning på 136,2 kWh/(m2Atemp,år); 2,9 % över det senast uppmätta normalårskorrigerade värdet. Nuvärdeskostnaden för att inte utföra någon åtgärd beräknades till ca 2 727 tkr. Åtgärderna genererade energibesparingar på 3,5–14,6 %, nuvärdeskostnader på 2 685-5 880 tkr och återbetalningstider på 7-105 år. För varje adderad åtgärd i klimatskalet ökade energibesparingen. Tilläggsisolering av vindsbjälklag visade sig vara den enda lönsamma åtgärden, då den har en nuvärdeskostnad som är lägre än att inte utföra någon åtgärd. En känslighetsanalys utfördes för kostnadsberäkningarna där diskonteringsräntan höjdes och sänktes med 2 % och energipriset höjdes med 10 %. Tilläggsisoleringav vindsbjälklag kvarstod dock som den enda lönsamma åtgärden. Åtgärderna hade kunnat generera högre procentuell energibesparing för en annan liknande byggnad. Referensbyggnaden innehåller ett stort renoverat kontor vilket ger en lägre nuvarande energianvändning och lägre procentuell energibesparing för åtgärder än om endast den äldre bostadsdelen studerats. Då Luleå har Sveriges lägsta energipris är åtgärder med hög investeringskostnad ekonomiskt svårmotiverade. Detta beror på att kostnadsbesparingarna genom minskad energianvändning blir små i förhållande till åtgärdernas investeringskostnader. Tilläggsisolering av fasad kan inte rekommenderas då åtgärden både är mycket olönsam och förändrar byggnadens uttryck väsentligt. Slutsatsen är att tilläggsisolering av vindsbjälklag är den lämpligaste åtgärden för äldre flerbostadshus, av de undersökta åtgärderna för energieffektivisering i klimatskalet. Den är arkitektoniskt lämplig med hänsyn till bevarandet av byggnaden då den inte förändrar byggnadens utseende. Den är även ekonomiskt lämplig då den har en livscykelkostnad som är lägre änalternativet att inte utföra någon åtgärd. För fortsatta studier föreslås bl.a. att undersöka hur åtgärder kan göras mer attraktiva för fastighetsägare, att kartlägga fastigheter från tidseran (skick, energianvändning, resultat av åtgärder, möjligheter) samt att utvärdera potentialen av ny teknik. / Old multifamily houses stand for a large part of Sweden’s total energy usage, which must decrease to minimize our environmental impact and to accomplish the government goal of more efficient energy usage. The aim of this master thesis is therefore to contribute to an increased knowledge on energy optimization through building envelope improvements in older buildings, and how energy efficiency measures can be evaluated through building energy simulation and life cycle cost analysis. The goal is to identify which measures that are economically and architecturally appropriate for old multifamily houses with interest in retaining their character. It is also to evaluate which energy saving and life cycle cost the selected measures generate. A multifamily house in central Luleå was selected as reference building. The building is by its construction and design representative for the era. Interesting energy efficiency measures in the building envelope were chosen. Then a wide literature study was carried out on house building in Sweden 1945-1964, building energy usage, energy efficiency through building envelope measures, the selected measures and the methods building energy simulation and life cycle cost analysis. The reference building was documented and an energy simulation model was built in the software IDA ICE. A present version of the building was simulated and calibrated to better match the latest normalised annual value. After that, simulations were performed for the selected measures; additional attic insulation, change to low energy windows and weather stripping these, a combination of both previous measures, additional facade insulation and change of windows, and a combination of all three measures. The life cycle costs of the present situation and for implementation of the different measures were calculated through the net present cost method. Also, payback times were calculated through the simple payback method. The building in its original state showed a post-calibration energy usage of 136,2 kWh/(m2Atemp,year); 2,9 % above the surveyed value. The net present cost for not performing any energy conservation measures was calculated to about 2 727 SEK. The measures generated energy savings of 3,5-14,6 %, net present costs of 2 685 -5 880 SEK and payback times of 7-105 years. For each added measure in the building envelope, the energy saving increased. Additional insulation of the attic turned out to be the only profitable measure, since its net present cost is lower than for not performing any energy conservation measure. A sensitivity analysis was performed for the cost analyses where the discount rate was raised and lowered by 2 % and the energy price raised by 10 %. However, the additional attic insulation remained as the only profitable measure. The energy conservation measures could have generated greater energy savings for a similar building. The reference building contains a large retrofitted office which lowers the present energy usage and the percental energy savings for measures compared to if only the dwelling part had been studied. Since Luleå has Sweden’s lowest energy prices, measures with high investment costs become difficult to give grounds for. This is because the cost savings achieved by their energy savings are low compared to their investment costs. Additional facade insulation cannot be recommended since it both is very unprofitable and highly changes the appearance of the building. The conclusion is that additional attic insulation is the most appropriate energy conservation measure for old multifamily houses, of selected measures in the building envelope. It can be regarded as architecturally appropriate since it does not change the building appearance. It is also economically appropriate since its life cycle cost is lower than for not performing any measure. Suggested future research includes analyzing how energy efficiency measures can be made more attractive for real estate owners, charting real estate from the era (condition, energy usage, results from measures, opportunities) and evaluating the potential of new technology within the field.