The demand for senior housing continues to accelerate as growth in the 75-and-older population significantly outpaces the expansion of available inventory. According to the National Investment Center for Seniors Housing & Care (NIC), absent new supply, many markets will reach record-high occupancy levels, with national averages exceeding 90% by the end of 2026.1
High and rising occupancy is often the earliest visible signal that a market’s existing communities are absorbing demand faster than new units are being delivered. For operators, sustained occupancy can support rent growth and help stabilize cash flow, but it may also reveal pressure points such as waitlists, rising acuity needs, and staffing constraints. For developers and capital providers, the same conditions can indicate opportunity, provided the market can support a new product at a price point and service level aligned with local demographics.
This article explores methodologies that use market penetration rates to help stakeholders interpret demand and make informed decisions about introducing a new senior housing product in the market.
How Do Market Penetration Rates Help Senior Living Providers Interpret Demand?
Penetration rates help translate demographic trends into a demand metric by estimating the share of an age-qualified population that is likely to live in (or could be supported by) a given type of senior housing product—most commonly independent living, assisted living, and memory care.
In practical terms, penetration rates provide a standardized method to compare markets of different sizes and test whether a proposed new supply is reasonable relative to the number of older adults who could be prospective residents. Because real estate, health status, household income, and consumer preferences differ by geography, penetration rates are most powerful when used with multiple market indicators rather than as a standalone “go/no-go” test.
When interpreting penetration rates, it is important to align assumptions to the realities of the market area. Key questions to consider include:
- How is the primary market area defined?
- What is the true competitive set (including planned or under-construction projects)?
- Are there meaningful barriers to entry, such as limited sites, zoning constraints, or certificate-of-need-like dynamics?
Finally, because senior housing demand is sensitive to affordability, analysts often pair penetration analysis with an income-qualified demand screen (i.e., households able to afford typical monthly fees) to avoid overstating demand in markets where population growth among older adults does not translate into effective purchasing power.
What Are the Three Market Penetration Rate Methodologies for Senior Housing?
In our work with senior living providers, we focus on three distinct, complementary penetration rate methodologies that help provide a well-rounded perspective on demand in the market:
- Project Penetration Rate: Focuses on the proposed or subject community’s units relative to the age-qualified population in the defined market area. This view helps test whether the project’s scale is appropriate for local demand.
- Net Market Penetration Rate: Evaluates demand after accounting for existing competitive inventory (and often stabilized occupancy expectations). This approach is useful for estimating “unmet” demand and gauging how much incremental supply the market may absorb.
- Gross Market Penetration Rate: Considers total inventory (existing plus proposed) relative to the age-qualified population. This perspective is helpful for understanding overall market saturation and comparing one market’s supply intensity to peer markets.
How Can Senior Living Providers Calculate & Apply Penetration Rates to a Feasibility or Expansion Decision?
The following steps outline an effective process for identifying and applying senior housing penetration rates:
- Define the market area and competitive set. Document the geographic boundaries, include comparable product types, and incorporate the planned pipeline where credible.
- Size the age-qualified population and growth trajectory. Use consistent age cohorts, e.g., 75 and older, and consider migration patterns that may influence local growth.
- Align product assumptions. Specify unit mix, care levels, pricing, and positioning (value, middle market, or premium), as penetration expectations can vary meaningfully by segment.
- Calculate project, net, and gross penetration rates. Review results together to understand both incremental absorption and total market saturation.
- Stress test with complementary indicators. Compare penetration rates to historical occupancy trends, absorption in comparable communities, household income/affordability screens, and local healthcare referral dynamics.
How Forvis Mazars Can Help With Senior Living Market Research
Over the past 25 years, our senior living team at Forvis Mazars has maintained a database of more than 200 financed senior housing projects completed across 35 states, which:
- Provides guidance on what constitutes an “acceptable” independent living penetration rate through a proprietary benchmarking approach.
- Helps establish a more consistent understanding of demand metrics amid varying market definitions and assumptions.
- Illustrates how penetration rates should be used in conjunction with other market indicators to inform feasibility analyses and planning decisions.
Ultimately, the goal of penetration analysis is to support a clear, defensible story about demand: how many potential residents exist, how many units are already serving them, and what level of additional supply the market can realistically absorb over time.
When paired with qualitative insights, such as the reputation of existing operators, the availability of healthcare services, and the preferences of older adults in the area, penetration rates can help stakeholders translate broad demographic trends into actionable expansion strategies.
If you have questions or would like assistance with senior housing penetration rate analysis, please reach out to our team today.
Download our white paper to learn more about our market penetration rate methodologies.
- 1 “Senior Living Occupancy Rate Continues Rising as New Supply Remains Limited,” nic.org, October 2, 2025.