Blackstone, a well-known, Bay Area Contractor, provides the best in construction and development services. Combining over 100 years of excellence, we are united by the clear mission to deliver only the best in construction and construction-defect litigation services. We serve the following multiple markets including single-family, multi-family and commercial construction. Some of our specialties include: • Construction defect services • General plan amendment; rezoning • Entitlement and plan check processes • Processing use permits (or tentative map) through municipal approval • Construction management • In-house architect design and investigation • Structural engineering services • Forensic Investigation • Design of residential and commercial buildings