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Durham has been selected for a national housing initiative that could bring hundreds of thousands of dollars and expert assistance to City Hall.
But homeowners hoping the announcement means new money to build a backyard apartment have a problem.
Durham's existing affordable ADU pilot has already selected all 20 participating homeowners and committed its available funding. Applications are closed.
The city announced its selection for Bloomberg Philanthropies' housing initiative on October 16, 2026. Durham is among the first 14 municipalities chosen for an effort intended to help as many as 30 cities build more housing and reduce development barriers.
Participating governments are eligible for $450,000 to $750,000 in support, along with technical assistance. Durham wants to expand housing choices, including accessory dwelling units, commonly called ADUs.
The new investment could help the city move more projects through planning and construction. It doesn't establish a second round of homeowner loans.
And Durham's existing program carries an important financial commitment: participating homeowners must keep their ADUs affordable for 30 years, even if they repay their construction loans early.
For someone considering a backyard apartment—or buying a property that already has one—the difference between permission to build, help with construction costs and the obligations attached to that help matters.
What Bloomberg's Housing Initiative Could Change in Durham
Bloomberg Philanthropies announced its housing initiative October 15 and updated the announcement October 16.
The initiative draws on San Diego's permitting reforms, Austin's ADU expansion and Atlanta's efforts to move stalled housing projects forward. Selected cities could use the support for specialized housing staff, permit-processing technology or architectural plans that make approvals easier.
Building a backyard apartment requires a design that meets zoning and building standards, along with utilities and construction permits. Additional staff, better permit systems or ready-to-use plans could help homeowners navigate those steps.
In October 22 reporting by NC Newsline, Mayor Leonardo Williams said Durham's award amount had not yet been determined. He suggested the funding could be used to hire another staff member focused solely on the ADU pilot.
Bloomberg's two-year goals include faster approvals, a larger ADU pipeline and more homes built.
Durham's Existing ADU Pilot Has Already Filled Its 20 Spots
Durham launched its affordable ADU pilot on April 7, 2026, using $1.75 million from Forever Home, Durham to support approximately 20 affordable rental units.
An accessory dwelling unit is a second dwelling on the same property as a primary home, with its own independent living facilities.
It might be a detached backyard cottage, an apartment within the main house or another qualifying secondary living space.
For a homeowner with enough room and the right property conditions, an ADU can add a separate residence without creating a new subdivision lot.
Durham's pilot is specifically intended to produce affordable rental housing.
The city's Housing & Neighborhood Services Department operates the initiative with Coram Houses, LLC, which assists with loans, construction and tenant placement.
As of November 3, Durham's ADU Pilot Program page reports that all 20 participating homeowners have been selected, the funding is committed and homeowner applications are closed. The city directs residents to check back for updates.
Selection alone doesn't establish how many ADUs have been completed or occupied. Individual projects have separate financing, permitting and construction milestones.
Durham's $80,000 ADU Loan Comes With a 30-Year Rental Commitment
Durham's April 13 ADU Pilot Program Manual describes construction financing of up to $80,000 per ADU.
The approved project budget determines the actual loan amount.
The financing carries a 2% fixed interest rate, with monthly principal-and-interest payments over 30 years.
It's a repayable construction loan, not an unrestricted grant.
The ADU must remain affordable for 30 years
Participants sign a recorded affordability covenant.
A covenant is a restriction attached to the property. Under Durham's pilot, it limits eligible tenants and rental charges for 30 years beginning when the ADU receives its certificate of occupancy.
The certificate of occupancy marks the completion of the approvals needed for the unit to be occupied.
During the affordability period, tenants must have household income at or below 80% of area median income, or AMI.
The applicable income limit depends on household size.
Owners must follow the program's rent restrictions and complete annual tenant-income certification.
Consider a homeowner who builds a detached backyard apartment using the city's loan.
Once construction is finished, the owner cannot simply set an unrestricted market rent because similar apartments nearby are leasing for more.
The recorded agreement limits the rent and the households eligible to occupy the unit.
For an owner counting on rental income to help cover construction financing, those restrictions belong in the financial calculation from the beginning.
Selling the house doesn't automatically end the restrictions
The loan and the affordability covenant are separate commitments.
Durham permits early loan repayment without a prepayment penalty.
But paying off the debt doesn't release the ADU from its recorded affordability restriction.
The covenant remains in effect for its required term and binds later property owners.
The manual also states that the loan becomes due upon sale or transfer without city consent.
Imagine someone buys a Durham house with a pilot-financed ADU several years after it was built. They may want to rent the apartment or use it for a relative. Before making plans, they'll need to examine the recorded covenant to see which uses remain restricted and for how long.
Can Homeowners Build an ADU in Durham Without the City Loan?
Yes. The affordable-loan pilot and Durham's general ADU development rules are separate.
Under Durham's Unified Development Ordinance, accessory dwellings are permitted on qualifying residential lots, subject to applicable development standards.
Section 5.4.2 addresses requirements involving ADU size, placement, building height and restrictions in flood-hazard areas.
A homeowner using personal funds or private financing may pursue an ADU if the property and proposed construction meet the applicable rules.
That project doesn't automatically become subject to Durham's affordable-loan covenant.
Participants had to own and occupy a qualifying property within Durham city limits. The program manual required primary-residence occupancy through issuance of the ADU's certificate of occupancy.
The property also had to be ready for permitting, with public water and sewer access and applicable zoning and site conditions satisfied.
Those are requirements for the financing pilot, not a universal description of every privately financed ADU project in Durham.
The pilot considered homeowner and property characteristics when selecting participants. The 80%-AMI ceiling discussed in the affordability covenant governs tenant eligibility.
A homeowner shouldn't assume that meeting the future tenant-income limit would have qualified them for construction financing.
For an ordinary ADU project, the owner needs to determine whether the property can accommodate the unit and which permits are required, whether the intended use is rental housing or separate living quarters for a family member. Buyers of existing ADUs should check the permits and any recorded restrictions.
What Durham's Selection Means for Future Affordable Rentals
For prospective renters, Coram Houses' Durham program-information page explains its role in construction and tenant placement and offers a form to express interest in an affordable ADU. People on that list can be contacted when a unit becomes available; joining it isn't an application for a specific vacant apartment or approval for tenancy.
If Durham uses Bloomberg's support to improve permitting or staffing, the tangible results will be reflected in permits issued, completed ADUs and renters moving in.
Where Durham Homeowners and Prospective Tenants Can Check Their Options
Homeowners interested in future affordable ADU financing can follow Durham's official ADU Pilot Program page for updates or call Housing & Neighborhood Services at 919-560-4570.
For owners exploring an ADU outside the financing program, Durham's development ordinance provides the applicable land-use rules.
City-County Planning can answer questions about the property's zoning and proposed development at 919-560-4137 or [email protected].
Prospective affordable-ADU tenants can review Coram Houses' program information, including its tenant-interest form. Coram Houses lists 919-808-2643 as a contact number.
Buyers comparing properties with separate living quarters may also find HomesRaleigh's Buying a Home With Parents or Another Household in North Carolina guide useful. It examines shared ownership, financing and independent living arrangements, including ADUs.
For someone buying a Durham home with an ADU, the permits and any recorded affordability covenant deserve attention before the purchase. Check them before assuming the unit can be used for family or rented without restrictions.
Conceptual editorial illustration; not a photograph, approved design or depiction of an actual property or project.
