How much notice must a Delaware manufactured home community give before raising lot rent?

Under 25 Del. C. §7051, a community owner must provide written notice of a rent increase at least 90 days — but no more than 120 days — before the first day the increased rent is due. The notice must go to each affected homeowner, any homeowners' association, and DEMHRA. This is general information, not legal advice about a specific increase.

What can a resident do if a Delaware rent increase seems too high?

Section 7053 establishes a dispute resolution process. When an increase exceeds the CPI-U baseline, a final meeting is required. Homeowners may then request nonbinding arbitration within 30 days of that meeting. Each party contributes $250 toward the arbitrator's fee. This is general information; a licensed attorney in Delaware can advise on a specific dispute.

Mobile home lot rent rules in Delaware

Q: Is there a cap on how much Delaware lot rent can increase?

Yes. Under §7052A (applicable to notices issued on or after July 1, 2022, through July 1, 2027), if the 24-month CPI-U does not exceed 6.1%, a base increase is limited to 3.5% plus 50% of that CPI-U figure up to 6.1%. If CPI-U exceeds 6.1%, the permitted increase equals the full 24-month CPI-U. Additional increases for documented expenses may also apply under §7052B. Consider consulting a licensed attorney in Delaware for help applying these formulas to a specific notice.

Q: How often can a Delaware park raise lot rent?

Section 7051 provides that a community owner may not increase a tenant's lot rent more than once during any 12-month period, regardless of the term of the tenancy or the rental agreement.

Delaware provides some of the strongest manufactured home lot-rent protections in the country. The Manufactured Home Owners and Community Owners Act (25 Del. C. Chapter 70) — including its Rent Justification subchapter (Subchapter VI) — imposes notice requirements, CPI-tied caps on base increases, and an arbitration pathway for disputes. The following is a general explanation of how those provisions work; for a specific rent increase, consulting a licensed attorney in Delaware is advisable.

What the statute says

Section 7051 sets the foundation. On frequency and notice:

A community owner may not increase a tenant's lot rent more than once during any 12-month period, regardless of the term of the tenancy or the rental agreement.

Notice of any increase must come "at least 90 days, but no more than 120 days, before the first day the increased amount of rent is due" and must be sent to each affected homeowner, any homeowners' association, and the state agency DEMHRA.

Section 7052A, covering notices issued on or after July 1, 2022, through July 1, 2027, ties the permitted base increase to the 24-month Consumer Price Index for All Urban Consumers (CPI-U):

If the 24-month CPI-U…does not exceed 6.1%: [the permitted increase is] 3.5% of the rent plus 50% of the 24-month CPI-U up to an amount that does not exceed 6.1%.

If the 24-month CPI-U exceeds 6.1%, the permitted increase equals the full 24-month CPI-U amount. Community owners must also receive DEMHRA certification of compliance before providing notice.

How it works in general

Delaware's approach combines procedural and substantive protections. The 12-month rule prevents multiple increases in a year. The 90-to-120-day advance notice window gives residents time to plan. The CPI-U formula in §7052A limits the size of a base increase and ties it to measurable economic data. An additional increase for documented allowed expenses (taxes, insurance, certain utility costs) may also apply under §7052B if substantiated. Rent increases are capped while certain health or safety violations remain unresolved, per §7051A. When a proposed increase exceeds the CPI-U baseline, §7053 requires a community meeting and then allows homeowners to request nonbinding arbitration.

Common scenarios

General examples Delaware community residents commonly encounter:

A 90-day notice arrives announcing a lot rent increase. The key questions are whether the 90-to-120-day window was observed, whether the increase fits within the §7052A CPI-U formula, and whether DEMHRA certification was obtained.
A notice attributes part of the increase to higher taxes or insurance. Section 7052B permits additional increases for documented allowed expenses, but substantiation requirements apply.
A resident wants to challenge an increase that appears to exceed the cap. Section 7053 provides a pathway: a required final community meeting followed by optional nonbinding arbitration within 30 days.
A community has unresolved health or safety violations. Section 7051A restricts rent increases while those conditions remain outstanding.

Other authorities that may apply

The Rent Justification subchapter (§§7050–7056) works alongside the rest of Chapter 70. The written rental agreement controls the base rent and specific terms. Section 7009 governs lease renewal and sets the 90-day non-renewal notice for landlords. Federal law — including the Fair Housing Act — can apply to how increases are administered. DEMHRA (Delaware Manufactured Home Relocation Authority) has an ongoing regulatory role, including certifying increase compliance. The state's Residential Landlord-Tenant Code applies where Chapter 70 is silent.