NOVELTY - Growing (M1) organically derived building material involves obtaining lignocellulose based medium; mixing the medium with water to reach hydration level; inoculating the medium with fungal inoculum; allowing time and providing vessel, where environmental conditions in the vessel are regulated; placing fungal mycelium into mold; applying primary compressive pressure of at least 100 PSI to the medium; reducing the primary pressure by factor of at least 4; removing the fungal molded shape from the mold; and drying fungal molded shape at specific temperature for specific time period.    USE - For growing organically derived building material in the form of moldable substrate to serve wide range of manufacturing and construction applications (claimed). The fungal material finds potential uses in gardening and landscaping, civil engineering, including the regeneration of fungal mycelium through the timed germination and dispersal of companion plants and other life forms that may be embedded within a somatic form. The fungal structures can act as animal shelter, ground cover and general inert environmental scaffolding. Moreover, this fungal material may also be used to create strong lightweight shells and forms that may be used in the manufacture of boats, furniture, and other consumer or commercial products which currently employ cardboard honeycomb, fiberglass, plastics or other strong lightweight materials to create structured forms such as molded decorative tiles, molding, temporary advertising installations, and panel relief forms.    ADVANTAGE - The application of compressive pressure at points throughout the process, either to the lignocellulose based medium or the growing fungal mycelium, results in vastly increased strength, durability, adhesion characteristics, with improved load bearing and other structural capacities. The method additionally speeds production time; allows for the creation of that much larger fungal objects; and provides building materials that are fire resistant, water resistant, mold resistant, and good insulators.    DETAILED DESCRIPTION - Growing (M1) organically derived building material in the form of a moldable substrate to serve a wide range of manufacturing and construction applications involves obtaining lignocellulose based medium capable of supporting the growth of saprophytic fungi; mixing the lignocellulose based medium with water to reach a hydration level; inoculating the lignocellulose based medium with a fungal inoculum; allowing time for the inoculated lignocellulose based medium to become colonized to the extent that the inoculated lignocellulose based medium is transformed into a fungal mycelium without any secondary organisms displacing the process through infection; providing a vessel, where environmental conditions in the vessel are regulated; placing the fungal mycelium into a mold such that the fungal mycelium forms into a fungal molded shape; applying a primary compressive pressure of at least 100 PSI to the lignocellulose based medium; reducing the primary compressive pressure by a factor of at least 4; removing the fungal molded shape from the mold; and drying the fungal molded shape at a specific temperature for a specific time period.