PBV HAP Contract Amendments: Adding, Substituting, or Removing Units
A PBV HAP contract does not freeze a project's assisted-unit schedule forever, but a public housing agency cannot change that schedule informally. HUD rules distinguish between adding units, substituting one contract unit for another, and removing units for specific regulatory reasons. Each type of change has its own conditions, and a change in the contract inventory can also affect the family living in the unit.
For PHAs and owners, the practical rule is simple: identify the exact reason for the unit change first, then apply the regulation, the PHA's Administrative Plan, and the HAP contract that govern that reason. A unit that is physically available is not automatically eligible to become a PBV contract unit.
The Contract Unit Schedule Is the Starting Point
The PBV HAP contract identifies the units covered by project-based voucher assistance. Those are the contract units for which the PHA may make housing assistance payments when the other program requirements are met. Changing that inventory generally requires a formal contract action or a regulatory removal rather than an informal agreement between property staff and the housing authority.
The underlying contract structure also matters. Existing housing and newly constructed or rehabilitated PBV housing can reach the HAP-contract stage through different development paths. Housing Help America's explanation of how PBV HAP contracts differ for existing housing and new construction or rehabilitation provides the background for those distinctions.
Once a HAP contract is in effect, 24 CFR 983.207 is the central rule for amendments that add or substitute contract units. Removal is different. Some removals are required or permitted under other sections of Part 983 because of prolonged vacancy, housing-quality failures, household circumstances, or changes in a unit's cap status.
Substitution Is a One-for-One Unit Change
A PHA may, at its discretion, agree with the owner to substitute a different unit for a unit already covered by the HAP contract. The substitute must be in the same project and have the same number of bedrooms as the unit being replaced.
Before the substitution occurs, the PHA must inspect the proposed substitute unit and determine that it complies with the applicable housing quality standards. The PHA must also determine that the rent to owner for the substitute unit is reasonable. A vacant unit can be substituted, and an occupied unit can also qualify if the additional occupied-unit requirements are satisfied.
That same-bedroom rule is important. A two-bedroom PBV unit cannot simply be replaced through the substitution provision with a one-bedroom or three-bedroom unit because another apartment happens to be available. A different unit configuration may require a different regulatory path rather than a routine substitution.
Adding Units Requires Capacity Under Both the Contract and the PBV Caps
A PHA may also amend an existing HAP contract to add PBV units in the same project without conducting a new proposal selection. That authority is discretionary, not automatic. Before adding a unit, the PHA must inspect it, confirm that it meets the applicable housing quality requirements, and determine a reasonable rent.
The PHA must also confirm that the additional units fit within the PBV program cap and the project cap, including any applicable exceptions or exclusions. Under the general program-cap rule, a PHA may commit project-based assistance to no more than 20 percent of its authorized voucher units, subject to the increased-cap and exclusion provisions in Part 983. The ordinary project cap is generally the greater of 25 units or 25 percent of the dwelling units in the project, with a higher cap and specific exceptions available in qualifying circumstances.
Funding matters separately from the numerical cap. Before a PHA adds units to an existing HAP contract, it must determine both how many authorized voucher units it is permitted to project-base and whether sufficient voucher budget authority is available. Being below a percentage cap does not by itself create funding for another PBV unit.
Additional units placed on an existing contract also take the same HAP-contract anniversary and expiration dates as the units originally placed under that contract. Adding a unit later does not normally give that unit its own fresh full contract term.
Not every newly created apartment can be added later
Part 983 restricts the addition or substitution of units that did not exist at the relevant point in the project's HAP-contract history. In general, the unit must have existed when the HAP contract was executed, when the last stage of a staged project was accepted, or result from a permitted interior reconfiguration of space that existed at that time without affecting the building envelope. This prevents the amendment process from becoming an open-ended way to attach PBV assistance to later construction that never formed part of the qualifying project inventory.
Occupied units require an additional eligibility check
An occupied apartment is not automatically disqualified from being added or substituted, but the family in the unit must be eligible for PBV assistance, the unit must be appropriate under the PHA's subsidy standards, and the family must have been selected under the applicable waiting-list rules. Special rules also apply when the household was using tenant-based voucher assistance in that same unit immediately before the unit is placed under the PBV HAP contract.
Repairs Can Be Completed Before an Addition or Substitution, but Major Work Has Extra Rules
A proposed added or substitute unit may undergo repairs or renovation before the HAP contract is amended. If the work rises to the level of substantial improvement under Part 983, additional requirements apply. Among other things, substantial improvement generally may not begin during the first two years after the HAP contract's effective date unless extraordinary circumstances apply.
Accessibility and civil-rights requirements also matter when substantial improvement is involved. Depending on the project and work, the Fair Housing Act, Section 504, and the Americans with Disabilities Act can impose design, construction, or accessibility requirements. The amendment process does not override those obligations.
Removing a PBV Unit Depends on Why the Unit Is Leaving the Contract
There is no single rule allowing every PBV contract unit to be removed for any reason. Part 983 identifies specific situations in which a PHA may or must reduce the contract inventory. The consequences differ depending on the trigger.
- Long-term vacancy: If a contract unit has been vacant for at least 120 days after the owner's required vacancy notice, despite reasonable good-faith efforts by the PHA and owner to fill it, the PHA may amend the HAP contract to reduce the number of contract units by the applicable bedroom size.
- Housing-quality noncompliance: When an owner fails to correct qualifying deficiencies within the required enforcement period, the PHA may be required to remove the unit from the HAP contract or terminate the contract, depending on the applicable rule and PHA policy.
- Household income reaches the gross-rent level: A unit occupied by a family whose total tenant payment rises to equal the gross rent is removed from the HAP contract 180 days after the last housing assistance payment. Part 983 also provides rules for later reinstatement or substitution.
- Wrong-size or accessibility circumstances: If a family is in a unit that no longer matches the PHA's subsidy standards, or occupies an accessible unit it does not need when that unit is needed by a family requiring the features, Part 983 provides continued-assistance and removal rules.
- Loss of an exception or increased-cap status: When a unit no longer qualifies for the cap treatment under which it was assisted, the PHA's Administrative Plan must address whether the PHA will substitute the unit, remove it, or change its cap status when permitted.
These are different regulatory events. A vacancy-based reduction, for example, is not the same as an enforcement removal for failed housing conditions, and neither should be treated as a general owner right to cancel assistance for a particular apartment.
A Contract-Unit Change Does Not Automatically Mean the Tenant Loses Assistance
The HAP-contract inventory and the family's tenancy are related, but they are not the same thing. When an occupied unit is removed, the reason for removal determines what notice, continued assistance, or relocation protection applies.
For a removal caused by unresolved housing-quality deficiencies, current PBV rules require the PHA to provide a tenant-based voucher before the unit is removed and give the affected family time to lease another unit with continued assistance. In a wrong-size or accessibility case, the PHA must first follow the continued-housing-assistance procedures in 24 CFR 983.260. When a unit loses a cap exception or increased-cap status, the PHA may in some circumstances provide tenant-based assistance and the family may be able to remain in the unit if the owner and family agree to use that assistance there.
Other removals do not necessarily require a move. For example, when a family's income increases until total tenant payment equals the gross rent, the regulatory action concerns the unit's PBV HAP-contract status after the required period. That is different from saying the family is automatically evicted from the property.
Bedroom Size and Accessibility Can Limit Which Unit Is a Valid Replacement
Bedroom count is not just an inventory label. For a substitution under 24 CFR 983.207(a), the replacement unit must have the same number of bedrooms as the unit it replaces. For an occupied unit being added or substituted, the apartment must also be appropriate for the family under the PHA's subsidy standards.
Accessible units require another layer of review. HUD rules give priority to families who need a unit's accessibility features, and Part 983 addresses what happens when a household occupies an accessible unit it no longer requires while another family needs those features. A PHA should therefore review both the physical characteristics of the proposed substitute unit and the needs of any family already occupying it before treating units as interchangeable.
The PHA's Administrative Plan Must Support the Change
Federal regulations leave some unit-change decisions to PHA discretion, but that discretion must be implemented through the PHA's written policies. The Administrative Plan must describe the circumstances under which the PHA will add or substitute contract units and explain how those circumstances support the goals of the PBV program.
The PHA should also be able to document the regulatory basis for the change. Depending on the action, the file should establish:
- the unit being added, substituted, reinstated, or removed and its bedroom size;
- the HAP-contract amendment or other contract action used to change the assisted-unit schedule;
- the required inspection result and any repair verification;
- the reasonable-rent determination for an added or substitute unit;
- the program-cap, project-cap, exception, or exclusion calculation when relevant;
- the availability of budget authority when additional assistance is being committed;
- family eligibility and waiting-list compliance for an occupied unit;
- subsidy-standard and accessibility review when those issues apply;
- required notices to the owner or affected family;
- the PHA Administrative Plan provision authorizing the discretionary action; and
- any HUD reporting or notification required because the HAP contract was amended.
That documentation matters because a HAP-contract amendment changes which apartments carry PBV assistance and may affect voucher funding, cap calculations, rent determinations, and resident protections. The safest administrative approach is to treat each unit change as a regulated contract event, not as a simple property-management swap.