MJS Designs, LLC is a Summerville, South Carolina based design firm providing clients with superior customer service and outstanding building designs. With more than 11 years of experience, our firm provides the hands-on approach and one-on-one attention of a small firm while offering the expertise understanding and capability of a large firm.MJS Designs, LLC is a full service design firm our wide range of expertise includes, general design services, land planning, interior design and project management. MJS Designs, LLC is a Summerville, South Carolina based design firm providing clients with superior customer service and outstanding building designs. With more than 11 years of experience, our firm provides the hands-on approach and one-on-one attention of a small firm while offering the expertise understanding and capability of a large firm.