Attefallshus in Mölndal – 2026 Guide to Rent or Build

Attefallshus in Mölndal have become a popular option for both tenants and property owners looking for extra living space without undergoing a lengthy building permit process. This guide covers what applies in 2026, from regulations and costs to practical tips for renting and placing these small houses in different districts. Read on to get a complete overview that helps you make informed decisions, whether you plan to build new or rent a ready-made attefallshus. ## Costs and building permits for attefallshus in Mölndal When planning an attefallshus in Mölndal you must follow the local attefallshus molndal regler set by Boverket and the municipality. According to Boverket, an attefallshus may be at most 25 square metres in floor area and have a maximum height of 4 metres, and it usually only requires a building notice if it meets certain distance requirements from plot borders and other buildings. For more detailed guidelines you can read Boverket's guidance on sheds and attefallshus here. ### Cost overview The cost of building an attefallshus varies depending on choice of materials, contractor and any connections to water, sewage and electricity. According to Ekonomifakta, the average price for a ready-made attefallshus in Sweden in 2026 lies between SEK 250,000 and 450,000, while a self‑built option can range from SEK 150,000 to 300,000 if you do much of the work yourself. Below is an example of cost spans for different executions: | Execution | Cost range (SEK) | |-------------------|---------------------| | Basic module, ready‑made | 250,000 – 350,000 | | With kitchen and bathroom | 350,000 – 450,000 | | Self‑built, simple | 150,000 – 250,000 | | Self‑built, with kitchen | 250,000 – 350,000 | These figures are indicative and may vary depending on plot conditions and local fees. To obtain a more exact quote it is recommended to get tenders from local construction firms and check any fees for connection to municipal networks. ## Where are attefallshus most common in Mölndal? In Mölndal attefallshus are mainly found in villa areas where plots are large enough to fulfil the distance requirements. Areas such as Kållered, Lindome and parts of central Mölndal have seen an increase in both newly built and rented attefallshus over the past few years. Proximity to public transport and services makes these districts attractive for tenants who want to live near Gothenburg yet still have their own small dwelling. Property owners in these areas often report high demand for small rental homes, making attefallshus a profitable investment if building permits and connections are in place. ## Renting an attefallshus in Mölndal – what applies? For those who want to rent out their attefallshus there are certain rules to keep in mind. According to the Swedish Tenants’ Association, an attefallshus counts as a separate dwelling if it has its own entrance, kitchen and bathroom, and then the tenancy is covered by the tenancy act. This means the rent must be reasonable and notice periods and rent increases follow the same rules as for regular apartments. If you rent out an attefallshus without these facilities it may instead be regarded as a room in the dwelling, which is subject to different regulations. For more information on what applies to the rental of smaller dwellings you can visit the Swedish Tenants’ Association’s website here. ### What do people on Reddit and Flashback say about attefallshus in mölndal? On forums such as Flashback and various Reddit threads both advantages and pitfalls of attefallshus in Mölndal are discussed. Many users appreciate the possibility of getting a private dwelling with a low rent compared to a regular apartment, especially in areas with good public transport. On the other hand, warnings are given that building costs can escalate if you do not have a clear budget from the start, and that some municipal fees for water and sewage connections can surprise new builders. A recurring piece of‑