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Energy conservation and generation

Green tools
Comprehensive resources to help professional builders recycle, reduce waste, save money, and earn recognition for embracing sustainable building practices in King County.

  • Green building documents 
    Find a variety of green building studies and reference materials to help stimulate and ground creativity.
  • Green building standards: LEED
    Look up how to apply the LEED Green Building Rating System with current King County building codes. Provided to help owners, architects, designers, contractors, project managers or building professionals develop green buildings in King County.
  • King County Sustainable Cities
    Toolkit for city and county governments building for the long-term.

Energize! Heat Pump Program
Free and reduced cost heat pumps for income qualifying residents in urban unincorporated King County areas of North Highline (White Center) and Skyway/West Hill.

King County C-PACER Program
Property assessed financing mechanism to help commercial, industrial, agricultural and multifamily buildings become more efficient and resilient.

King County building permits 
Find information about building permits and environmental review for developers working on building projects in King County, provided by the Department of Local Services (formerly Dept. of Permits and Environmental Review).

Zero-energy, carbon neutral townhouses in Issaquah

Green Bonds
Financial investments that fund projects that reduce climate pollution and improve water quality in King County.

Native plant resources for the Pacific Northwest
Find out how to use and where to order native plants that are adapted to thrive in our area. Landscape designs using native plants are beautiful, resist diseases and pests, create habitat for native wildlife and help reduce water consumption, saving homeowners money.

Transfer of development rights program 
Learn how individuals can buy and sell residential development rights to preserve public benefits-- for example farms, forestlands, open space, regional trails and designated urban separator lands and habitat for threatened or endangered species. Owners benefit financially through the transfer of development rights to more appropriate areas while the public benefits through permanent preservation of these lands.

Resource protection incentives 
Apply for tax reductions in rural King County in exchange for practices that benefit public interests. Includes the public benefit rating system or PBRS.

Surface water management fee discounts and cost-sharing program 
Reduce your SWM fee by applying sustainable building practices that reduce and cleanse your stormwater.

King County surface water design manual 
Supporting documents and software to help engineers design storm drainage systems that cleanse stormwater and reduce flooding problems for downstream neighbors. Architectural tips to help design attractive stormwater ponds can be found by reading the Integrated Pond.

Stormwater pollution prevention manual 
Look up best practices to apply on business and multifamily lands to help control stormwater pollution, to avoid fouling lakes, streams and Puget Sound.

Puget Sound shoreline stewardship guidebook 
Provides info and contacts for owners of beach and bluff shorelines to learn about natural shoreline protection, manage runoff, use native plants, control aggressive non-native plants, and maintain septic systems.

Rural stewardship planning 
Rural homeowners in King County can receive free technical assistance with site design and property management practices to achieve more flexibility in development and resource protection on their property.

What do I do with...?
Find recycling and disposal options for common materials including construction leftovers, demolition debris, landscaping waste, and appliances.

Resource recovery
Working to generate reusable resources from yesterday's waste.

Annual Growth Report
Report about actual growth in King County based on projects and permits.

Infographic: learn about King County's efforts to confront climate change

King County climate action

Local governments and sustainability: examples from King County, Washington (Chinese)
Local Governments and Sustainability: Examples from King County, Washington
(Acrobat pdf)
Presentation by Bob Burns, deputy director of King County Department of Natural Resources and Parks at the China-US Professional Workshop on Regional Sustainable Development (external link), University of Washington in Seattle.

Construction Stormwater Pollution Prevention Standards
Appendix D of the King County Surface Water Design Manual. 1 MB Adobe Acrobat file.

History of King County's regional wastewater treatment utility
Read how our region worked to keep our lakes and Puget Sound clean and healthy, including the early days of sewage treatment and disposal in King County, the birth of Metro and development of regional facilities to process the waste produced by our metropolitan area.

Habitat restoration projects
Projects undertaken by King County to restore the health of rivers, streams and Puget Sound for endangered and other species.

King County Comprehensive Plan
Read the policies that guide King County land use and development regulations, and regional services such as transit, sewers, parks, trails and open space.

Shoreline Management Program
Learn about King County's program to protect shorelines, promote public access, and establish land use priorities for shorelines of Puget Sound, large rivers and lakes.

Wetland information
Comprehensive resources related to wetlands in King County including info on the importance of wetlands, map resources, development regulations, and programs.

Flood buyout and home elevation program
This page answers frequently asked questions about King County's program to buy out flood-prone houses and provide homeowner assistance in having homes elevated. The page also provides information about related programs that can help homeowners affected by flooding.

Sustainability-related organizations

News and announcements

Nov. 8, 2022
External article, Canary Media
Heat pumps now required for new homes in Washington state

Oct. 18, 2022
External article, Seattle Times
Carbon auctions will bring WA more money than predicted. Transportation could benefit 

Oct. 6. 2022
‘The clearest call ever for immediate climate action’: Executive Constantine announces new actions to rapidly reduce countywide greenhouse gas emissions

Sep. 26, 2022
External article, Seattle Times
Green buildings get a boost in WA, but policy and demand still lag

Sep. 23, 2022
Making homes in King County greener, healthier, safer: Executive Constantine’s budget proposal will get more homeowners low-interest loans for heat pumps and clean energy retrofits 

Aug. 25, 2022
External article, Seattle Times
WA will ban new gas-powered cars by 2035, following California’s lead 

Aug. 24, 2022
External report, KUOW
Washington to phase out new gasoline-powered cars by 2035

Aug. 17, 2022
External article, Washington Post
Analysis: State climate action could be supercharged by the Inflation Reduction Act 

Aug. 16, 2022
Executive Constantine announces a combined $8.2 million for community-led projects that will offer recreational opportunities, provide access to open space, and restore river corridors  

Aug. 16, 2022
External report, KUOW
Massive new climate law could give Pacific Northwest green businesses a boost 

Jul. 27, 2022
Executive Constantine demonstrates progress on making region's treatment plant more resilient to climate impacts as King County hosts national conference for clean water agencies

Jul. 20, 2022
External article, Bellevue Reporter
Multi-city energy efficiency program, Energy Smart Eastside, launches

» Archived news and announcements

Sustainable Building Practices

Sustainable or green building practices cover all aspects of building, including:

  • land preparation
  • materials selection
  • life-cycle of the building (construction, operation and maintenance, demolition)

Sustainable building includes such practices as

  • redevelopment of inefficiently designed or environmentally damaged sites
  • job-site recycling of construction materials
  • native vegetation landscapes
  • stream and wetland protection and restoration
  • natural drainage
  • energy and water efficiency
  • low toxicity materials
  • use of recycled materials
  • reduced use of land and materials
  • design for re-use
  • revitalization of decayed areas to improve residents' quality of life