Stormwater Retention Credit Program · Washington, DC

Your DC property may qualify for a fully funded upgrade.

Rainplan funds the design, permits, construction and ongoing maintenance of green stormwater improvements on qualifying DC commercial properties. Your cost is $0, and there is nothing to repay.

$0 owner outlay · not a loan · no obligation after the call

Planted green roof on a brick home in Washington, DC
Green roof, Washington, DC · built and maintained by Rainplan
$0your cost, ever
100%funded, built and maintained by Rainplan
15 minproperty review call, no obligation
DCcommercial and institutional properties
What your project could include

Not just infrastructure. A genuinely beautiful upgrade.

Permeable paver surface

Permeable pavement

Paver systems that upgrade the look of your surfaces and drink the rain that falls on them.

Planted green roof

Green roofs

Planted roof systems that turn unused roof area into working, good-looking infrastructure.

Planted rain garden

Rain gardens

Planted retention gardens that capture and filter rain where it lands, and read as landscaping because they are.

Rain cistern alongside a building

Rain cisterns

Clean, well-placed storage that captures roof runoff and puts it to work on irrigation.

Deferred work rides along

Repaving. Regrading. Drainage corrections. Retaining walls. Where the numbers support it, the problems you've been putting off get solved inside the funded scope.

The offer · fully funded

We fund the entire project. You never see an invoice.

What Rainplan covers

  • Engineering and permits, handled by licensed DC engineers.
  • Construction, built around your operations.
  • Maintenance for the life of the project, on our calendar.
  • All of it funded up front with our capital.

What it costs you

$0
  • No payment for design, permits, construction or maintenance.
  • No repayment, ever. This is not a loan.
  • No maintenance burden on your staff.
What's in it for you

Four things you keep. None of them cost you anything.

Capital improvements, no capex

A six-figure capital improvement can land on your property without touching your capex budget. Upgraded, maintained sites show better to tenants, brokers and lenders.

Lower utility bills

Completed projects earn discounts on the stormwater charges on your DC Water bill, based on the retention the project achieves. Savings recur every billing cycle.

A better-looking property

Designed by experienced civil engineers and landscape professionals, and kept healthy by our maintenance program at no charge to you.

An environmental story you own

Measurable stormwater capture protecting the Anacostia watershed. Real material for tenants, community relations and sustainability reporting.

Proof on the ground

Projects we've delivered in Washington, DC.

Owners who said yes, and what showed up.

Bioretention rain garden at the Yellow Cab lot Infiltration system along the working taxi lot
Case study · Bladensburg Rd NE

Yellow Cab of DC

A bioretention rain garden and infiltration system running the length of a working taxi lot, designed by licensed DC engineers and built in one season. The lot stayed open the entire time.

$310Kupgrade value
$0owner outlay
~39Kgallons treated per inch of rain
Bioretention facility at Southern Homes and Gardens Planted retention area behind rebuilt retaining walls
Case study · 83-unit cooperative

Southern Homes & Gardens

An abandoned play area's concrete boundary became a bioretention facility, gravel swale and rebuilt retaining walls, delivered end to end in nine months. The co-op keeps the water bill savings and the upgraded grounds; the Anacostia watershed keeps the car oils and metals out.

16Kgallons of runoff filtered
9 mofrom start to completion
$0owner outlay
Interconnected rain gardens at Stoddard Baptist Nursing Home Bioretention practice with native planting on the campus
Case study · Skilled nursing facility

Stoddard Baptist Nursing Home

A nursing home campus with severe stormwater and drainage challenges was transformed through a facility-wide system of more than ten stormwater practices. Interconnected rain gardens carry water from one system to the next as it moves through the site, while creating attractive native landscaping throughout the campus. Engineering, construction and planting were delivered at no cost to the facility.

$370Kproperty improvements
$0owner outlay
72Kgallons captured and filtered per storm event
What happens next

Four steps. The diligence is on us, not you.

1
You · 15 minutes

Introductory call

We explain why your site qualifies, show its numbers, and answer the obvious questions.

2
Rainplan · if there's mutual interest

Preliminary site visit

Our engineering partner walks the property around your operations.

3
Rainplan

Feasibility and design

Engineering and financial diligence determines what can be built, funded and included for you.

4
You · sign, then we build

Proposal, then delivery

Scope and terms in writing before you sign anything. Then we build, and we maintain.

No commitment after the first call. No repayment from you, ever. No maintenance burden on your staff.

The catch · how we make money

There is one. Here it is.

What we get

The credits. DC requires new development to manage stormwater, and lets developers buy Stormwater Retention Credits from properties that retain it for them.

Your property can generate those credits. We fund the project up front with our own capital and earn our return over years as they sell.

What you get

Everything else. The completed improvements stay with the property.

The utility savings stay on your bills.

The maintenance stays on our calendar.

Who qualifies, broadly

Commercial, institutional, religious, multifamily or nonprofit property inside Washington, DC, with meaningful hard surface: parking lots, large roofs, paved courtyards, compacted lawn. Properties that already have drainage, flooding or repaving needs are often the best candidates. We fund a limited number of projects per cycle, and the review tells you in fifteen minutes whether yours is one of them.

Common questions

What owners ask on the first call.

What does this cost me?

Nothing. Rainplan pays for engineering, permits, construction and ongoing maintenance with its own capital, and there is no repayment. Our return comes from selling the Stormwater Retention Credits the project generates.

Is this a loan, a lien or a lease?

It is not a loan and there is nothing to repay. The agreement gives Rainplan the right to the credits the practice generates and to maintain it for the agreed term. You see every term in writing before you sign, and we encourage you to have counsel review it.

What is a Stormwater Retention Credit?

A tradable credit created in Washington, DC when a property voluntarily retains more stormwater than required, by installing green infrastructure or removing hard surface. Developers who cannot meet their retention requirement on site buy credits to comply. The program is run by the Department of Energy and Environment.

Who maintains the rain garden or permeable lot?

Rainplan does, for the life of the agreement. Maintenance is part of what keeps the credits valid, so it is in our interest to do it well.

How long does a project take?

From first call to finished construction is typically several months, depending on permitting and the size of the site. The Southern Homes and Gardens project went from start to completion in nine months.

Will it disrupt my tenants or operations?

Construction is phased around how the site is used. The Yellow Cab lot stayed open the entire time. We walk the sequencing through with you before anything is scheduled.

Does my property qualify?

The fastest way to know is the fifteen-minute review. We have already run most commercial parcels in the District, so we can usually tell you on the call whether the retention numbers work for your site.

How to start

See what could be funded at your property.

In a 15-minute property review, we'll show you why your site was identified, what could be built, and what we may be able to fund. No application. No obligation. No repayment.

We fund a limited number of DC projects each cycle. Starting the review now gives your property the best chance in the current one.

DC property? $0 cost, nothing to repay.
Book a 15-min review