Undeveloped Properties Trade Associations

American Land Title Association (ALTA)

National trade association for the land title insurance and settlement industry; members help clear title on land, close transactions, and protect property rights critical to converting raw land into developable sites.

https://www.alta.org Membership: 6,500

American Planning Association (APA)

Big‑tent association for planners and allied professionals that supports land-use policy, community planning, and entitlements central to bringing undeveloped parcels through approvals.

https://www.planning.org Membership: 40,000

American Society of Landscape Architects (ASLA)

Professional society for landscape architects who plan and design sites, open space networks, and green infrastructure that shape land development outcomes.

https://www.asla.org Membership: 15,000

Association of State Floodplain Managers (ASFPM)

Nonprofit advancing sound floodplain management; equips public and private practitioners with policy, training, and certification to reduce flood risk on prospective development sites.

https://www.floods.org Membership: 7,000

Building Owners and Managers Association (BOMA) International

Federation for owners, managers, developers and service providers in commercial real estate; offers advocacy, standards, and education relevant from pre‑development through operations.

https://www.boma.org Membership: 30,000

Congress for the New Urbanism (CNU)

Membership organization promoting walkable, mixed‑use, infill and greenfield town planning; connects public and private stakeholders to deliver better site and street frameworks.

https://www.cnu.org Membership: 2,600

ICSC (formerly International Council of Shopping Centers)

Global trade association for the marketplaces (retail/placemaking) industry; links owners, developers, and investors involved in site selection, entitlement, and ground‑up retail projects.

https://www.icsc.com Membership: 70,000

International Erosion Control Association (IECA)

Global association for erosion, sediment control, and stormwater professionals; provides practices and training used during site preparation and mass grading of undeveloped land.

https://www.ieca.org Membership: 2,000

International Right of Way Association (IRWA)

Member‑led association for right‑of‑way and land acquisition professionals who secure access and easements for infrastructure and development.

https://www.irwaonline.org Membership: 7,500

Land Improvement Contractors of America (LICA)

National network of earthmoving and site‑work contractors focused on conservation, drainage, grading, and other land improvement activities that ready raw land for development.

https://www.licanational.com Membership: 2,000

NAIOP, the Commercial Real Estate Development Association

Association for commercial real estate developers, owners, investors, and partners; offers advocacy, research, and networking for entitlement, capital, and ground‑up development.

https://www.naiop.org Membership: 21,000

National Association of Home Builders (NAHB)

Federation representing home builders, land developers, and suppliers; provides policy advocacy, codes/standards input, and market intel for subdivision and residential land development.

https://www.nahb.org Membership: 140,000

National Association of Landscape Professionals (NALP)

Trade association for landscape and lawn care contractors supporting site establishment, grading/planting, and exterior improvements that follow land development.

https://www.landscapeprofessionals.org Membership: 100,000

National Association of Real Estate Investment Trusts (Nareit)

The REIT industry’s member association; corporate members include listed and non‑listed REITs across sectors (e.g., residential, industrial, timberland) that assemble and entitle land.

https://www.reit.com Membership: 168

National Association of Realtors (NAR)

America’s largest real estate trade association, representing residential and commercial practitioners, including land brokers who transact agricultural, recreational, and development tracts.

https://www.nar.realtor Membership: 1,453,690

National Association of State Trust Lands (NASTL)

Consortium of state land administrators managing school trust lands; convenes 20+ state agencies and affiliates involved in leasing, sales, and stewardship of vast undeveloped holdings.

https://www.statetrustland.org Membership: 23

National Multifamily Housing Council (NMHC)

Council of apartment developers, owners, and financiers; focuses on policy, research, and best practices affecting multifamily land acquisition, entitlements, and project delivery.

https://www.nmhc.org Membership: 1,100

Realtors Land Institute (RLI)

National affiliate of NAR dedicated to land real estate; provides education (LANDU), the ALC designation, and a community for professionals brokering and advising on land transactions.

https://www.rliland.com Membership: 2,000

Society of Industrial and Office Realtors (SIOR)

Global society of elite industrial and office real estate advisors and brokers who support site selection, land assemblage, and transactions for large‑scale developments.

https://www.sior.com Membership: 4,000

Urban Land Institute (ULI)

Multidisciplinary, member‑powered institute advancing responsible land use; connects developers, capital, public agencies, and consultants to deliver equitable, resilient projects.

https://www.uli.org Membership: 48,000