Accomplishing　China’s　national　targets　of　carbon　peaking　and　carbon　neutrality　necessitates　proactive　solutions,　hinging　critically　on　fundamentally　transforming　rural　construction　models.　Current　construction　practices　in　rural　areas　are　characterized　by　inefficiency,　high　resource　consumption,　and　reliance　on　imported　materials.　These　shortcomings　not　only　jeopardize　the　attainment　of　climate　objectives,　but　also　hinder　equitable　development　between　urban　and　rural　regions.　Using　the　Digital　Industrial　Park　in　Yongtai　County,　Fuzhou　City,　as　a　case　study,　this　study　focuses　on　prefabricated　public　buildings　in　regions　with　extreme　hot–humid　climate,　and　innovatively　integrates　BIM　(Building　Information　Modeling)-driven　carbon　modeling　with　the　Gaussian　Two-Step　Floating　Catchment　Area　(G2SFCA)　method　for　spatial　accessibility　assessment　to　investigate　the　carbon　emissions　and　economic　benefits　of　prefabricated　buildings　during　the　embodied　stage,　and　analyzes　the　spatial　accessibility　of　prefabricated　building　material　suppliers　in　Fuzhou　City　and　identifies　associated　bottlenecks,　seeking　pathways　to　promote　sustainable　rural　revitalization.　Compared　with　traditional　cast-in-situ　buildings,　embodied　carbon　emissions　of　prefabricated　during　their　materialization　phase　significantly　reduced.　This　dual-perspective　approach　ensures　that　the　proposed　solutions　possess　both　technical　rigor　and　logistical　feasibility.　Promoting　this　model　across　rural　areas　sharing　similar　climatic　conditions　would　advance　the　construction　industry’s　progress　towards　the　dual　carbon　goals.　©　2025　by　the　authors.