The objective of this study is to present some preliminary results of an eco-efficient brick (TeBR) produced from a mixture of soils, solid wastes (ash, sawdust, paper fiber), and industrial effluent (cassava wastewater), without burning or cement. The aim of the project was to develop a sustainable material for civil construction with low environmental impact and economic feasibility. The experimental program comprised geotechnical characterization; water absorption, linear shrinkage, and compressive strength tests; X-ray fluorescence spectrometry (XRF), X-ray diffraction (XRD), and scanning electron microscopy (SEM). These tests were carried out on soil samples and/or TeBR bricks, with varying mix ratios and ages tested. Considering non-structural masonry, the results indicated that TeBR meets the requirements of Brazilian and international standards, particularly in terms of compressive strength, water absorption and shrinkage. The leaching tests did not indicate the presence of the contaminants tested above the established limits. The study revealed that TeBR can reduce construction costs, especially in self-construction for social housing, particularly in low-income regions. The research findings demonstrate the viability of TeBR from social, technical, and economic perspectives. Furthermore, the outcomes of the study may contribute to the efforts to tackle the difficulties in meeting the objectives of sustainable development.