23 stormwater rebate programs, checked September 30, 2026
Rebate programs pay homeowners to manage stormwater where it falls — usually with rain gardens, conservation landscaping, or native plantings that soak up runoff instead of sending it into sewers and streams. There is no national program: every rebate is run by a county, city, water utility, or watershed group, so the rules differ state to state and even town to town. Some pay a flat rate per square foot, others reimburse a percentage of your costs, and a few work as tax credits or discounts on your stormwater fee. Some require an approved plan before you dig; others let you do the work yourself and send in receipts. Funding opens and closes, so amounts and deadlines move. This page is our free, working directory of every residential program we could verify — checked September 30, 2026 — so you can find yours and confirm the current terms with the official source before you apply.
Every residential program we could verify across Maryland, DC, Virginia, Delaware, Pennsylvania, New Jersey, New York, and New England. Free to use. Programs change their rules, so confirm with the official source before you apply.
Some details below are marked UNVERIFIED — our honest flag for facts we could not confirm from the official source. Programs change their rules, so confirm the current terms with the official source before you apply.
Delaware
Delaware Community Conservation Assistance Program (DeCAP)
- Rebate
- Cost-share; rate UNVERIFIED
- Cap
- UNVERIFIED
- Plan required
- Yes - design plan with 'what to build and how to build it', …
- DIY allowed
- Appears to involve a contractor; …
- Status (checked 9/30/26)
- UNVERIFIED for 2026
Official source
Catch the Rain (White Clay Creek Wild & Scenic)
- Rebate
- Rain garden & conservation landscape: 50% of total cost up to $2,500 (2019 handout - current amounts …
- Cap
- $2,500 per practice (2019 handout; UNVERIFIED for 2026)
- Plan required
- Staff site visit produces written recommendations report; …
- DIY allowed
- Yes (keep receipts)
- Status (checked 9/30/26)
- 2026 brochure posted; likely active - UNVERIFIED
Official source
District of Columbia
DC RiverSmart Rain Garden Rebate
- Rebate
- $41 per sq ft of garden area, per DOEE's current page. Older program guides cite different figures — confirm the current terms with DOEE before applying.
- Cap
- $3,000 max per DOEE's current page (older guides cite $2,200); rebate cannot exceed project cost.
- Plan required
- Yes - design sketch
- DIY allowed
- Yes - DIY or contractor
- Status (checked 9/30/26)
- Appears active on DOEE page; explicit 2026 status UNVERIFIED
Official source
Maine
Portland ME Stormwater Service Charge Credits
- Rebate
- Credit of 0.5 Stormwater Billing Unit per whole 600 sq ft of impervious area treated (per UConn NEMO summary …
- Cap
- Charge was $6.00/month per 1,200 sq ft impervious (2015-2016); …
- Plan required
- UNVERIFIED
- DIY allowed
- UNVERIFIED (staff offer engineering …
- Status (checked 9/30/26)
- UNVERIFIED
Official source
Maryland
Montgomery County RainScapes Rewards Rebates
- Rebate
- Rain garden $10/sq ft; conservation landscape $5/sq ft (no ponding) or $6/sq ft (with 3 in. ponding)
- Cap
- $7,500 per residential parcel (lifetime); $20,000 …
- Plan required
- Yes. Plan must be approved after county site assessment; …
- DIY allowed
- Yes - county FAQ addresses homeowners …
- Status (checked 9/30/26)
- Yes - 'currently accepting applications' per county …
Official source
City of Rockville RainScapes Rebate Program
- Rebate
- Rain garden $10/sq ft (min 75 sq ft); conservation landscaping $6/sq ft with soil improvement or $5/sq ft …
- Cap
- $5,000 lifetime per property
- Plan required
- Yes (pre-approval)
- DIY allowed
- Yes - not prohibited; receipts-based; …
- Status (checked 9/30/26)
- Yes - 'Program Status: OPEN' on CBT page; Rockville news …
Official source
City of Gaithersburg RainScapes Reward Program
- Rebate
- Rain garden $10/sq ft (min 75 sq ft); conservation landscaping $6/sq ft w/ soil improvement, $5 without (min …
- Cap
- $5,000 per property owner (residential & nonprofit)
- Plan required
- Yes
- DIY allowed
- Yes for planted practices (only …
- Status (checked 9/30/26)
- Rolling FY27 instructions dated 7.2.26 exist; live open …
Official source
Prince George's County Rain Check Rebate
- Rebate
- Rain garden $10/sq ft (min 100 sq ft); conservation landscaping $5/sq ft (min 250 sq ft; Track 3 min 1,000 sq …
- Cap
- $6,000 lifetime per residential property; $20,000 commercial/nonprofit
- Plan required
- Yes
- DIY allowed
- Yes - fact sheet: 'You can do this …
- Status (checked 9/30/26)
- Yes - CBT page shows OPEN (page modified 2026-09-11)
Official source
Howard County Clean Water Howard - CleanScapes (Residential Reimbursem…
- Rebate
- UNVERIFIED - per 'BMP Cheat Sheet' (not retrieved)
- Cap
- UNVERIFIED
- Plan required
- Project application after site visit; technical review. …
- DIY allowed
- No - must be installed by a licensed …
- Status (checked 9/30/26)
- No for new entrants - 2026-2027 site visit request form is …
Official source
Anne Arundel County Stormwater Management Property Tax Credit / WPRF C…
- Rebate
- Property tax credit = 10% of materials+installation cost per year for 5 years (i.e., up to 50% total); WPRF …
- Cap
- $10,000 over 5 years (tax credit)
- Plan required
- UNVERIFIED
- DIY allowed
- UNVERIFIED
- Status (checked 9/30/26)
- Appears ongoing; UNVERIFIED for 2026
Official source
Massachusetts
Aquarion Lawn Irrigation System Removal Rebate Program (MA)
- Rebate
- Up to $2,500 toward irrigation system removal and planting of native or alternative landscaping
- Cap
- $2,500 cap; issued as Visa gift card
- Plan required
- UNVERIFIED
- DIY allowed
- UNVERIFIED
- Status (checked 9/30/26)
- Form is live online; funding status UNVERIFIED
Official source
New Jersey
Lawn Rebate Program (Native Plant Rebate) - Resilient Lambertville
- Rebate
- $5.00 per sq ft of lawn replaced with native plant garden; $100 per tree (min 2-inch caliper)
- Cap
- Max $700 per residence (= 140 sq ft at $5). Hardscape, decorative …
- Plan required
- Partial - no pre-approval plan, but application must …
- DIY allowed
- Yes - DIY or contractor
- Status (checked 9/30/26)
- Likely open until Oct 1, 2026 if funds remain (UNVERIFIED …
Official source
Rutgers Rain Garden Rebate Program
- Rebate
- $3 per sq ft of rain garden
- Cap
- Up to $450 per lot/property (= 150 sq ft)
- Plan required
- Yes
- DIY allowed
- Yes - homeowner may design …
- Status (checked 9/30/26)
- UNVERIFIED - pages undated; described as pilot
Official source
New York
Town of North Hempstead Native Plant Residential Rebate 2026
- Rebate
- Up to $350 per household, native plant purchases only
- Cap
- Reimburses native plant costs up to $350. Ineligible: taxes, delivery …
- Plan required
- Yes
- DIY allowed
- Yes - no professional design required; …
- Status (checked 10/1/26)
- Closed October 1, 2026 — the 2026 program year ended.
Official source
Long Island Garden Rewards Program (LIGRP)
- Rebate
- Up to $500 per property
- Cap
- Reimbursement of plant/material costs. Rain gardens: native plants …
- Plan required
- No
- DIY allowed
- Yes - DIY expected (labor not …
- Status (checked 9/30/26)
- Yes (per page last modified Sept 1, 2026)
Official source
Peconic Estuary Homeowner Rewards Program
- Rebate
- Up to $500 per native plant garden / per application; rain barrels up to $100 each or actual cost
- Cap
- $500 total per homeowner application
- Plan required
- UNVERIFIED - application content not reviewed; page says …
- DIY allowed
- Yes (DIY rain barrel instructions …
- Status (checked 9/30/26)
- Page states 'Applications for 2026 are now open!' (closing …
Official source
Pennsylvania
Philadelphia Rain Check
- Rebate
- Cost-share (not a reimbursement). Rain barrels free; metal downspout planter $100 homeowner cost; other …
- Cap
- Current caps UNVERIFIED; 2013 figures: rain garden $2,000 max, …
- Plan required
- No
- DIY allowed
- No - installs by program's …
- Status (checked 9/30/26)
- Yes (workshops run through October)
Official source
PWSA Stormwater Fee Credit Program (Residential)
- Rebate
- Residential credit = 50% discount on monthly stormwater fee (per manual; web page says Tier 1 gets 50%, other …
- Cap
- Tiers by impervious area: Tier 1 400-1,014 sq ft = 0.5 ERU; Tier 2 …
- Plan required
- Yes
- DIY allowed
- Yes for rain gardens (no PE required); …
- Status (checked 9/30/26)
- Yes (ongoing program)
Official source
Lancaster Stormwater Management Fee (SWMF) Credit Program + Residential Grant
- Rebate
- SWMF credit: up to 50% of fee (Structural volume/GI up to 50%; peak rate 25%; water quality 25%; …
- Cap
- Fee tiers: Tier 0 0-300 sq ft IA no fee; Tier 1 301-1,000 = 50% base …
- Plan required
- Yes
- DIY allowed
- Yes - sketch plan accepted for small …
- Status (checked 9/30/26)
- Credit program active per City web page; Residential Grant …
Official source
Chester County Catch the Rain
- Rebate
- 50% of project costs
- Cap
- Up to $2,500 per property owner
- Plan required
- Yes
- DIY allowed
- DIY installation allowed; design comes …
- Status (checked 9/30/26)
- UNVERIFIED - fall round anticipated Sept 2026
Official source
Vermont
BLUE BTV Residential Stormwater Program (Burlington VT)
- Rebate
- 2026 max per practice: rain garden/bioretention $1,500; dry well $1,500; infiltration trench/basin $1,500; …
- Cap
- Site maximum $2,000
- Plan required
- Yes
- DIY allowed
- Yes - homeowner designs accepted if …
- Status (checked 9/30/26)
- Appears active (2026 rebate chart); UNVERIFIED
Official source
Virginia
Virginia Conservation Assistance Program (VCAP) / Fairfax County CAP v…
- Rebate
- Rain garden and conservation landscaping: 80% of actual costs (FY24 LP guide; VASWCD CL page)
- Cap
- $7,000 max per practice/application (FY24 guide; VASWCD CL page). …
- Plan required
- Yes - full design plan
- DIY allowed
- Design certification waiver possible …
- Status (checked 9/30/26)
- Appears active (no closure noted); FY27 funding UNVERIFIED
Official source
Arlington County Stormwater Utility Credit (fee credit, NOT a rebate)
- Rebate
- Fee credit: rain garden 10%, conservation landscaping 5%, trees 5%, rainwater collection 5%; max 35%; max …
- Cap
- 35% of stormwater utility fee
- Plan required
- UNVERIFIED
- DIY allowed
- UNVERIFIED
- Status (checked 9/30/26)
- Opens Nov 1, 2026
Official source
Applying to a Maryland program?
Our compliance-ready planting plans include the layout, the native plant list, and the application packet your county asks for. $19.50 per plan.
See the plans