The population in Enköping is expected to increase, which means that more housing needs to be built. On behalf of S&E Johanssons fastigheter AB, floor plans for a possible apartment redevelopment in Villa Fannalund will be designed to meet parts of the current housing shortage. Today, Villa Fannalund is an office building and a redevelopment that must comply with the regulations set by Boverket (The Swedish National Board of Housing, Building and Planning). In order to write this work/degree project, a literature review has been conducted where several examples of student reports regarding redevelopment have been analyzed. In addition, articles and reports relating to laws and regulations regarding redevelopment have also been processed in the literature review. To get a more detailed picture of Villa Fannalund, a case study was conducted through a study visit to the building itself and an interview with the property owner Sven Johansson. This paper presents two potential floor plans for Villa Fannalund's apartment project. These floor plan proposals are explained and then compared where the pros and cons of the two are evaluated. The two proposals cover 12 apartments each, where all apartments have a unique floor plan. The apartments in the proposals are of varying size, from one and a half room and kitchen to three rooms and kitchen with living areas ranging from 32m2 to 95m2. The work leads to the conclusion that Villa Fannalund shows great potential in becoming successfully redeveloped into an apartment building. During the work with this degree project, some challenges arose with the floor plans where, among other things, the common areas became far too large. There was also a problem with insufficient daylight in the common hall spaces.

The purpose of this project was to examine how the cultural heritage building Biotopia can optimize its energy usage with 40 % by implementing different measures, without affecting the cultural values of the building. Furthermore, an economical evaluation has been done, to ensure that the measures are a reasonable investment. The project was done by the request of the property owners Ihus and STUNS Energy. To accomplish this the properties energy usage and production was modelled in the software VIP-Energy and PV*SOL. A literature study was also done to research the possible and allowed actions to implement. The measures that were found to be suitable was to install an extra window pane in the old windows, to add additional insulation to the attic and basement level of the extra building Konservatorbostaden and to install solar panels on a parking slot or alternatively on the modern additional building. Additional insulation of the facade was also modeled to visualize future possibilities if new techniques are found or if the current regulations change. The results showed an energy saving of 32 % if the allowed actions are taken and 56 % if the facade is insulated and the windows are completely renewed. All the measures that are allowed to be taken to energy optimize the building was found to be economically viable. The solar installations were found to be reasonable to implement on the parking slot or the modern additional building, provided that it is legally allowed.