2026-07-21T13:48:15-05:00 2025-12-31 562360192 Taksey Neff & Associates LLC 2 Research Place Suite 310 Rockville MD 20850 990 2025-01-01 205111004 Tregaron Conservancy C/o Lynn Parseghian TREG 2024914401 2954 Macomb Street NW Washington DC 20008 Lynn Parseghian Executive Director 2028105009 2026-07-13 1 Edward Neff P00359218 3012941100 2026-07-13 2025 2025-03-06 01:10:19Z Lynn Parseghian 2954 Macomb Street NW Washington DC 20008 731708 0 X www.tregaronconservancy.org X 2006 DC To restore and maintain 13 acres of historic landscape. 16 16 1 110 0 0 642676 476584 0 0 154925 255124 0 0 797601 731708 0 0 0 0 110590 90071 0 0 39326 170499 221045 281089 311116 516512 420592 3705973 4130247 1182 4864 3704791 4125383 X To restore and maintain 13 acres of historic landscape. 0 0 234954 In 2025, the Tregaron Conservancy continued to pursue its mission to restore, rehabilitate and maintain its historically landmarked property, inspired by landscape architect Ellen Biddle Shipman's original, early 20th century designs, for the benefit of the public. The Conservancy's landscape stewardship work in 2025 included the following: mapping, tagging, inventorying and evaluating over 800 trees on Tregaron property; designing and planting historically inspired "wild gardens," featuring predominantly native trees, shrubs, and perennials; maintaining trails; improving storm-water management; and clearing non-native vines and other invasive species. The Conservancy continued to manage and improve its native grass and wildflower meadows. The Conservancy also worked with its arborists and professional maintenance crew to undertake tree care and pruning. Extensive tree removal work was performed as needed. The Conservancy's stewardship and historic rehabilitation work was performed under staff supervision, based on guidance in its cultural landscape report, and pursuant to an annual management calendar. The Conservancy landscape remained open to the public every day, dawn to dusk, during 2025. The Conservancy offered a wide variety of well-attended community programs free of charge in 2025, including bird walks, landscape design, climate adaptation and tree tours, music performances, tai chi, yoga, and programs for students, including guided nature walks and story-time. The Conservancy hosted visits by over 500 students from both under-resourced communities participating in the Horizons Greater Washington summer camp program and from local public elementary schools. The Conservancy also maintained a robust volunteer service program, with hundreds of hours contributed by volunteers, both adults and students. 234954 1 1 0 0 0 0 0 1 0 1 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 X 16 16 1 0 0 0 0 0 0 1 1 0 0 0 1 1 1 1 0 1 0 0 X Lynn Parseghian 2024914401 2954 Macomb Street NW Washington DC 20008 Lynn Parseghian Executive Director 50.00 X X 82917 0 0 Susan Lynner Chair 4.00 X X 0 0 0 Denise Schlener Board member 1.00 X 0 0 0 Tamara Belt Vice Chair 2.00 X X 0 0 0 Dale Temple Board member 1.00 X 0 0 0 Nicholas Netchvolodoff Treasurer 2.00 X X 0 0 0 Melissa Vanouse Board member 1.00 X 0 0 0 Elizabeth Edgeworth Cantacuzene Board member 2.00 X 0 0 0 Suzanna Jemsby Board member 1.00 X 0 0 0 Frank Swain Board member 1.00 X 0 0 0 Susie Zimmermann Board member 1.00 X 0 0 0 Myra Riggs Board member 1.00 X 0 0 0 Martha Coven Board member 1.00 X 0 0 0 Nicholas Hill Board member 1.00 X 0 0 0 Jim Myers Board member 1.00 X 0 0 0 Zach Shaben Board member 1.00 X 0 0 0 John Weiner Board member 1.00 X 0 0 0 82917 0 0 1 0 0 0 0 476584 476584 98985 98985 156139 0 156139 156139 156139 731708 156139 0 98985 X 82917 45604 8292 29021 7154 3935 715 2504 13235 13235 118310 115695 2615 5060 1500 968 2592 1126 989 137 20286 20286 4520 4520 Maintenance and repairs 27135 27135 Subcontractors 15358 15358 Printing, postage, & de 3997 451 3546 Memberships 3345 3345 8673 5441 1706 1526 311116 234954 36836 39326 581418 854085 934543 166574 788255 767969 2336300 2508193 3705973 4130247 1182 4864 1182 4864 X 0 0 0 0 3704791 4125383 3704791 4125383 3705973 4130247 420592 0 X 0 0 0 X 482493 256495 280029 642676 476584 2138277 482493 256495 280029 642676 476584 2138277 1035510 1102767 57387 86215 74551 154925 255124 628202 2766479 0.39860 0.42900 X Schedule A, Part VI, List of Unusual Grants: Description: Land Date: 01/15/09 Amount: 250000. Description: Cash Date: 01/25/10 Amount: 100000. Description: Cash Date: 01/25/11 Amount: 100000. Description: Cash Date: 05/29/12 Amount: 500. Description: Cash Date: 01/17/12 Amount: 100000. Description: Cash Date: 05/29/12 Amount: 500. Description: Cash Date: 01/10/13 Amount: 100000. Description: Cash Date: 05/20/13 Amount: 32211. Description: Cash Date: 05/31/13 Amount: 125. Description: Cash Date: 12/07/11 Amount: 199980. Description: Cash Date: 06/30/12 Amount: 485000. Description: Cash Date: 03/10/14 Amount: 100000. Description: Cash Date: 03/10/14 Amount: 33580. Description: Cash Date: 03/23/15 Amount: 638000. Description: Cash Date: 02/19/15 Amount: 115390. Description: Cash Date: 02/19/15 Amount: 20000. Description: Cash Date: 06/29/15 Amount: 20000. Description: Cash Date: 07/01/11 Amount: 2000. Description: Cash Date: 07/01/16 Amount: 20000. Description: Cash Date: 01/08/16 Amount: 186751. Description: Cash Date: 06/21/17 Amount: 20000. Description: Cash Date: 03/06/17 Amount: 130000. Description: Cash Date: 01/19/17 Amount: 58033. Description: Cash Date: 12/31/19 Amount: 10000. Description: Cash Date: 12/31/19 Amount: 91063. Description: Cash Date: 02/04/20 Amount: 92524. Description: Cash Date: 01/25/21 Amount: 94133. Description: Cash Date: 11/19/21 Amount: 52500. Description: Cash Date: 06/07/21 Amount: 100000. Description: Cash Date: 01/14/22 Amount: 95286. Description: Cash Date: 11/27/22 Amount: 5000. Description: Cash Date: 01/27/23 Amount: 96240. Description: Cash Date: 02/10/23 Amount: 13760. Description: Cash Date: 12/07/23 Amount: 2000. Description: Cash Date: 01/16/24 Amount: 108095. Description: Cash Date: 04/04/24 Amount: 200000. Description: Cash Date: 02/18/25 Amount: 118010. Description: Cash Date: 12/22/25 Amount: 117187. Description: Cash Date: 12/04/25 Amount: 4000. Description: Cash Date: 12/29/25 Amount: 25000. RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED 731708 2421220 X X 0 0 2630116 4982 255124 2890222 2160191 315000 154925 2630116 2085640 74551 2160191 1748903 250000 86439 2085640 1691462 57440 1748903 0 0 641876 641876 292667 166574 126093 767969 Credit card payable 4864 4864 Part III, Line 4: The parcels of land capitalized allow Tregaron to continue to further its mission of restoring and maintaining the historic landscape for the benefit of the public. Part V, Line 4: The assets of the Endowment are intended to provide support for the future maintenance and improvement of the Tregaron Conservancy property. Form 990, Part VI, Section A, line 2 Suzanna Jemsby is the Head of School of Washington Int'l School and Dale Temple is the Director of Facilities and Operations. Tregaron Conservancy board members Myra Riggs and Nicholas Hill are also members of the board of trustees of WIS. Form 990, Part VI, Section B, line 11b The 990 is not submitted to all members of the Board of Directors prior to filing. The Board of Directors, upon request, will receive a copy of the 990. Form 990, Part VI, Section B, line 12c Each Tregaron Conservancy board member receives the Conservancy's Conflict of Interest Policy and Conflict of Interest Policy Acknowledgment and Disclosure Form, including a list of the Conservancy's current vendors. The Conservancy requires board members to complete the form annually, disclosing business and familial relationships that may give rise to an actual or potential conflict of interest, so that a determination may be made as to whether any action is necessary. Form 990, Part VI, Section B, line 15a The Board approves compensation of the Executive Director of the organization. Form 990, Part VI, Section C, line 19 Governing documents can be provided upon request. Form 990, Part VII Contact Addresses for Officers, Directors, Etc Lynn Parseghian - 2954 Macomb Street, NW, Washington, DC 20008. Form 990, Part IX, line 11g Architects and landscape fees: Program service expenses 115,695. Management and general expenses 0. Fundraising expenses 0. Total expenses 115,695. Payroll service fees: Program service expenses 0. Management and general expenses 2,615. Fundraising expenses 0. Total expenses 2,615.