Natural Beauty


Neighborhood Character 

in the

     Riverdale Area.  

~ Since 1986

Did you know parts of Riverdale, Fieldston and Spuyten Duyvil are designated as a SPECIAL NATURAL AREA DISTRICT (SNAD)?

This designation was made in 1975 through the New York City Zoning Resolution.  It is an important part of protecting natural areas, guiding development to safeguard mature trees and plantings, steep slopes, and rock outcrops. 

At present there are four SNADs in NYC, including the one in our neighborhood.



This spring, the Preservancy will launch its  S pecial Natural Area District (SNAD) Awareness Campaign to highlight this ecologically protected area that ensures preservation of green spaces for all.


How can you participate in our SNAD Awareness Campaign!

* For display on SNAD properties only. Click here to see if you are in the SNAD, which is zoned as NA-2.

Pollinator Fair

Sunday, June 26 at the Riverdale Y Farmer's Market

(located at the Riverdale Temple Parking lot, 9:30am-2:00pm)


Visit our table between 10:00am and noon to learn more about:

  • The Preservancy

  • The SNAD

  • Preserving habitats for native wildlife.

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peter's house sign.jpg

Special Natural Area District


Pastries - $4

Butter Croissant - $2.5

Coffee/Tea - $1

Fresh Juice - $2

Annual Campaign 2022

Are In

  • Download our Spring 2022 SNAD Awareness brochure or coloring sheets.

  • Display a "You Are in the SNAD" lawn sign on your property*   

Special Natural Area District Information:

SNAD Protects Natural Features

  • trees 6" caliper or greater,

  • topographic elements: steep slopes (incline of 25% or greater), existing natural topography (0 % to < 25 % slope), and topsoil,

  • rock outcrops and erratic boulders,

  • wetlands and surface water features, and

  • botanic environments.

Why does NYC create
Special Natural Areas?

SNADs are mapped "only in areas where outstanding natural features or areas of natural beauty are to be protected. The preservation of such areas is important because they contain areas of special ecological significance, interesting geological formulations and rock outcrops, unique aquatic features such as tidal wetlands, unique topographic features such as palisades, valleys and hills, important plant life such as glaciated oak-chestnut forests or because they serve as habitats for native flora and fauna." (Section 7412-10 of the zoning text)

The NYC Planning Commission adopted Special Natural Area District (SNAD) zoning regulations in 1974. The Commission updated and strengthened the regulations in 2005

Where is Riverdale's SNAD?

The SNAD in Riverdale covers much of Fieldston and Riverdale west of the highway.

For more detailed information on SNAD and responsible stewardship, click here.

About Us

The Riverdale Nature Preservancy is a local non-profit operating in Community Board 8 in the Northwest Bronx.

We protect our area's unique natural resources and historic architecture by:

  • Monitoring local development

  • Engaging in long-term planning with NYC and the community

  • Providing information to enable local residents to take an active role in environmental and planning issues.

Get Involved

Follow us on Facebook and join our mailing list for updates on local planning issues, green tips, and community conversations!


Support our work!



Click here to donate via Paypal,





Or mail a check to:

Riverdale Nature Preservancy
c/o 5521 Mosholu Avenue
Bronx, NY 10471

Green Space ?

Find local green spaces to enjoy!  Whether you're interested in a breathtaking view, a quiet hike, or playing some ball, the Riverdale area offers public access to green spaces.