Semiahmoo House Society, a non-profit organization located in Surrey/White Rock, exists to provide quality services and support to people with disabilities and their families in the community. Our Philosophy. The Semiahmoo House Society is committed to the provision of highest quality community-based services for individuals who have a developmental disability. We believe that each individual has the right to those services, which will enable him or her to participate-to the greatest extent possible-in the same activities of daily life as a non-handicapped peer. We further believe that other rights-to liberty, personal freedom, dignity and meaningful life-can be enhanced and protected by ensuring that individuals have strongly dedicated personal, family and service delivery support systems in place. more... See more text