Sean Hendley CBLP Level 1-Basic Foundation in Sustainable Design Installation and MaintenanceCBLP Level 2 – Advanced Training in Sustainable DesignCBLP Level 2 – Advanced Training in Sustainable Installation Specialties Photos conservation landscaping About Sean Hendley Sean Hendley. 31 Oswego Avenue Takoma Park, Maryland 20910 hendley_s@outlook.com Summary of Services Garden maintenance and design, with emphasis on native plants. Years of Experience: 6 Do you work with homeowners?: Yes Certification Number: 3-00102 Loading... No Records Found Sorry, no records were found. Please adjust your search criteria and try again. Maps failed to load Sorry, unable to load the Maps API.