Tool #3 — the cap checker

Is my lot rent increase inside the cap?

A bare cap percentage is a wrong answer in the states where this is asked hardest. Washington caps increases at 5% — with lot-specific exemptions the checker must ask about. Oregon splits by park size and uses the Consumer Price Index for small parks. Most states have no statewide cap at all, and the honest answer there is the notice period, the lease, and the local-ordinance check. This checker does the full computation and frames it as math, never as a legal determination about your lease.

Check the increase

Tell it your state, your park's size, and the two rents. It does the cap math — including the exemption questions and the notice-period check. Where a state has no statewide cap, it says so plainly and shows what still protects you. No login, nothing uploaded.

State the park is in

Spaces in the park

Current lot rent ($/month)

Proposed lot rent ($/month)

Date you got the notice

Date the increase starts

Date your tenancy began

Consumer Price Index increase, % (Oregon small parks only — the state's published figure) Washington only — might an exemption apply to your lot? (tick any that fit)

The lot is owned by a public housing authority, public development authority, or a nonprofit whose rents are regulated by an affordable-housing program

The tenancy is in a qualified low-income housing development owned by one of those organizations

The park was recently sold to a preservation organization, and most owners approved a bigger increase to cover the purchase

This is the first renewal after the home was sold, and the park told the buyer about a one-time increase before the sale

The cap math is a computation from the statute and your figures — never a legal determination about your lease.

Scope, printed on purpose: this checker covers state law. Local rent ordinances are outside the dataset at launch — California alone has about 102 of them — and where your state page knows the local picture, the result says how to check it. A state dataset pretending to a local one would be the failure this site exists to replace.

What the checker knows

Washington: the flat 5% cap, the first-12-months bar, the 90-day notice, and the statutory exemptions — asked as questions, not assumed
Oregon (HB 3054): more than 30 spaces, 6% flat; 30 or fewer, the lesser of 10% or 7% + CPI; 90 days' notice
The other 13 deep states: the honest no-state-cap answer, the notice period where the code sets one, closure and relocation terms
Every other state: not yet in the verified dataset, with the agency route — never a guessed cap

The increase in words first: how much can a park raise lot rent? Your state's full park law: the guides hub.