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Closed seasonalLast verified 8/11/26

Oahu Rainwater Solutions

The program may support one of these project types: Build a Rain Garden, Bioswale, or Runoff-Management Yard, Capture Rainwater in a Barrel or Cistern, or Create a Native, Pollinator, or Conservation Yard.

Run by
Oahu Rainwater Solutions
Service area
Oahu residents at eligible installation sites.

Program at a glance

Benefit
Free approved installation.
Who
Oahu residents at eligible installation sites.
Where
Oahu residents at eligible installation sites.
Qualifying project
The program may support one of these project types: Build a Rain Garden, Bioswale, or Runoff-Management Yard, Capture Rainwater in a Barrel or Cistern, or Create a Native, Pollinator, or Conservation Yard.

Quick check

Do the main rules appear to fit?

Your answers stay in this page session. The program makes the final decision.

1. Is the property in the official service area or account group?

A city mailing address may not match a utility or watershed boundary.

2. Does the property need one of the approved project routes listed above?
3. Have you checked the approval rule before buying or starting work?

Many programs need before photos, an inspection, or written approval.

Answer each question for a cautious result.

The rules remain visible here even if the interactive check is unavailable.

The finished result

What project qualifies?

This program may support more than one approved project route. The program’s plan and written decision control which route applies to the property.

An approved planted feature slows, stores, filters, or infiltrates runoff on the property. Roof runoff is captured in an approved container and reused or released safely. The property gains approved living plants or habitat that saves water, protects soil, or improves water quality.

Build a Rain Garden, Bioswale, or Runoff-Management Yard

An approved planted feature slows, stores, filters, or infiltrates runoff on the property.

See the full project guide →

Create a Native, Pollinator, or Conservation Yard

The property gains approved living plants or habitat that saves water, protects soil, or improves water quality.

See the full project guide →

What the project may require

A product can be one part of the work. The approved project, timing, design, and proof control.

Complete the approved property project

required

Creates the finished outcome the program supports.

The program may support one of these project types: Build a Rain Garden, Bioswale, or Runoff-Management Yard, Capture Rainwater in a Barrel or Cistern, or Create a Native, Pollinator, or Conservation Yard.

Official path: official page

How to apply or check the program

  1. 1

    Confirm the property

    Verify the service area, account, ownership, applicant, and property type with Oahu Rainwater Solutions.

  2. 2

    Open the current official program source

    Use the official program link below.

  3. 3

    Collect the before-project evidence

    Follow the Drop application. Property and contact information. Project-location photo. Project-type selection.

  4. 4

    Get approval when required

    Get written approval before removing, buying, signing, or installing anything the program treats as project work.

  5. 5

    Complete only the approved scope

    Keep design changes and material substitutions in writing.

  6. 6

    Submit the completion package

    Program access and installation acceptance.

Open the official program

Details to confirm

  • This is not a cash rebate.
  • The 2026 deadline has passed.
  • Rain-garden material specifications are not public on the fetched page.

Examples that do not qualify

  • Buying gravel, soil, mulch, or another product by itself does not create eligibility.

Questions people ask

Is this a rebate for buying gravel or another material?

No. The program supports the qualifying property project described above. A material purchase matters only when it serves the approved design and follows the program’s payment rules.

Can I start before applying?

Get written approval before removing, buying, signing, or installing anything the program treats as project work.

Does appearing eligible guarantee funding?

No. Current status, funding, ranking, inspection, and final approval can still affect the outcome.

Who decides whether a material substitution qualifies?

The program or its designated designer. Ask Oahu Rainwater Solutions to approve the exact substitute in writing before ordering.

Last verified 8/11/26

Official sources

Use these official sources for current rules, availability, and application details.

Report a change or missing program

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