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Purple and blue hydrangea flowers growing through a white picket fence. Cape Cod Cottage

About us

Hanley is an award-winning landscape design and build firm based in Portsmouth, Rhode Island. While offering a broad range of services, we specialize and focus on landscape design and construction. We're passionate about designing resilient, tasteful, and functional landscapes that are uniquely tailored to each client. With years of expertise and a focus on detail, we bring endless possibilities to every project.

Our Licenses, Certifications, & Memberships: 

RI Invasive Species Manager Certifications (IM) Licenses: ​

  • State of Rhode Island Coastal Resources Management Council & DEM : Certified Invasive Manager (IM) #470 & #477

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​Arboriculture & Urban Forestry Licenses & Certifications: 

  • State of Rhode Island Licensed Arborist: #FE-AL-000005 | exp 12/31/25

  • International Society of Arboriculture (ISA): Certified Arborist: #MA-0033A

  • International Society of Arboriculture (ISA): Tree Risk Assessment Qualification (TRAQ) | exp Dec 2029   ​

Landscape Design & Construction Licenses, Certifications & Memberships:​

  • State of Rhode Island: Master Irrigator #MI000243 | Partnership with MP Irrigation

  • Association of Professional Landscape Designers: Professional Member

  • US Army Corps of Engineers: Construction Quality Management for Contractors (CQM-C) | exp June 2027

  • OSHA: 40 Hour Emergency Response Standard

  • Unilock: Hardscape U-TECH Certification (Build Team)

  • Snow & Ice Management Association (SIMA): Advanced Snow Manager​​​

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Ready to create the backyard of your dreams?

Fill out our contact form and we'll reach out within one business day.

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