The Lohilammen Taidenavetta is a natural-stone exhibition and event space built in 1881 on the grounds of the Johannes Lohilammen Museum in Sammatti. The Lohja Museum rents out the space to individuals and organizations for exhibitions, public events, and private functions. Use of the space is subject to a space reservation approved by the museum and an agreed-upon rental period. General public access is only permitted in connection with an exhibition or event being held, and the visiting hours are confirmed by the organizer. The entrance is located on the side of the building opposite the road. The foyer and hall are accessed via stairs; the foyer floor is cobblestone, and the doorway has a low threshold. The building has electricity and infrared heaters, but it is not thermally insulated and does not have running water. The availability of an accessible portable restroom on the museum grounds must be confirmed separately, as the website only mentions it during the summer months.