Zillow Research

Support Growing for Middle Housing

A new Zillow survey covering 26 metro areas found that residents largely support allowing middle housing in residential neighborhoods. Middle housing options are those that fall into categories between single-family lots and large multifamily buildings, such as duplexes or small apartment buildings. A clear majority of homeowners surveyed (78%) voiced support for at least one of these middle housing options, and support was higher among renters (91%).

Despite a pandemic construction boom, in 2022, there were roughly 8.09 million “missing households”: individuals or families living with nonrelatives. Compare that to 3.55 million housing units that were available for rent or for sale, and there is a housing shortage of more than 4.5 million.

There is no quick fix for the housing shortage, but Zillow research has shown that modest densification measures — such as allowing two units on 10% of single-family lots across some of the largest U.S. metros — could help boost critically needed housing supply enough to slow housing price growth in a meaningful way. This latest survey shows a growing support among homeowners and renters for adding housing to their neighborhoods.  

Accessory dwelling units enjoy broadest support

Of the types of homes we asked about, accessory dwelling units (ADUs) generally garnered the highest level of support. Among adults in the metros we surveyed, 68% said they would support allowing ADUs in their neighborhood, with higher percentages among renters (71%) and younger adults (71% among ages 18–29, 75% in their 30s and 71% in their 40s).

Duplexes, triplexes and small condo/apartment buildings (of fewer than 10 units) generally enjoyed majority support: 59% of those surveyed said they would support allowing duplexes and triplexes in their neighborhood, and 57% said the same about small condo or apartment buildings of fewer than 10 units. Medium buildings (between 10 and 49 units) saw a closer divide, with about half (50%) indicating support, 44% saying they were opposed, and 6% saying they were unsure.

Support growing for middle housing 

Among renters, support for allowing more types of homes has stayed consistently high: Starting in 2022, about 77% of renters reported their support for allowing ADUs, duplexes and/or triplexes in residential neighborhoods. When surveyed again in 2023, 82% reported the same support. In the same year, 89% of renters said they would support allowing at least one type of multifamily housing (ADU, duplex, apartment, and/or condo) in their neighborhood. In 2024, 91% of renters said the same. 

Among homeowners, we’ve seen such support grow since at least 2019, when we began surveying them. In 2019, just over half (57%) agreed at least somewhat that homeowners should be allowed to convert their homes to add housing units. That support grew to 64% in 2022, 68% in 2023 and 73% in 2024.

Most respondents report experiencing housing discrimination

Most of those surveyed reported that they had been treated differently in their search for housing for at least one of the protected identities that we asked about. About 4 in 5 LGBTQ+ adults (79%) reported experiencing this kind of housing discrimination. Renters reported experiencing discrimination (61%) at a higher rate than homeowners (53%). And younger generations, whose members are more likely to move and typically move more often, also reported experiencing discrimination at higher rates (72% of Gen Zers and 65% of millennials, higher than 55% of Gen Xers, and 38% of baby boomers and older).

Half consider housing affordability a highly important election issue

Across the 26 metros surveyed, about half of respondents (52%) said that housing affordability was very or extremely important when deciding who to vote for in this year’s federal elections. For renters, a clearer majority (59%) expressed the same importance, versus 49% of homeowners.

Younger generations, especially millennials, were more likely to place high importance on housing affordability as an election issue (59% of Gen Zers and 62% of millennials, versus 51% of Gen Xers, and 38% of baby boomers and older).

Strong support for source-of-income protections

About 73% of adults across the 26 metros we surveyed said that they agree somewhat or completely that “Landlords in my state should be required to accept rent payments from tenants that rely on government assistance, like social security or housing vouchers.” Agreement was higher among renters (78%) than homeowners (70%).

Share of adults who say they would support allowing each home type in their neighborhood OR who say that at least one multifamily condition (affordability, proximity to transit/recreation) would make them more supportive

  ADUs Du/triplex Small condo/ apartment (fewer than 10 units) Medium condo/ apartment (10–49 units) Large condo/ apartment (50+ units) Any /at least one
Total 87% 83% 83% 82% 81% 87%
Atlanta 85% 76% 78% 75% 75% 87%
Boston 90% 84% 83% 79% 78% 93%
Chicago 89% 86% 85% 83% 84% 91%
Columbus 84% 79% 80% 79% 77% 87%
Dallas 86% 79% 80% 80% 79% 88%
Denver 91% 88% 85% 83% 83% 91%
Detroit 87% 82% 85% 82% 81% 90%
Houston 82% 79% 79% 79% 78% 84%
Las Vegas 90% 84% 84% 83% 83% 91%
Los Angeles 87% 84% 83% 83% 82% 89%
Miami 89% 86% 86% 83% 82% 92%
Minneapolis 83% 81% 81% 79% 78% 87%
Nashville 84% 77% 75% 74% 74% 86%
New York 85% 84% 82% 82% 81% 90%
Long Island 81% 80% 81% 79% 78% 84%
Philadelphia 87% 83% 82% 81% 80% 89%
Phoenix 86% 84% 85% 84% 84% 89%
Raleigh 87% 84% 82% 82% 81% 89%
Riverside 90% 89% 88% 90% 88% 95%
Sacramento 87% 82% 79% 78% 77% 89%
San Diego 89% 87% 85% 88% 83% 93%
San Francisco 88% 84% 84% 83% 82% 90%
San Jose 94% 82% 83% 80% 83% 95%
Seattle 88% 88% 86% 86% 83% 92%
St. Louis 84% 80% 79% 78% 78% 87%
Tampa 86% 78% 79% 76% 78% 88%
Washington, D.C. 91% 87% 87% 86% 86% 92%

 

  ADUs Du/triplex Small condo/ apartment (fewer than 10 units) Medium condo/ apartment (10–49 units) Large condo/ apartment (50+ units) Any /at least one
Total 87% 83% 83% 82% 81% 89%
Homeowner 83% 79% 78% 77% 76% 87%
Renter 93% 92% 92% 91% 90% 95%
Gen Z (ages 18–29) 92% 92% 92% 91% 90% 96%
Millennial (ages 30–44) 92% 90% 89% 88% 88% 93%
Generation X (ages 45–59) 85% 82% 81% 80% 80% 88%
Boomers & Silent Gen (ages 60+) 78% 71% 72% 70% 69% 82%
Ages 18–29 92% 92% 92% 91% 90% 96%
Ages 30–39 92% 91% 89% 89% 89% 94%
Ages 40–49 88% 85% 84% 84% 83% 90%
Ages 50–59 85% 82% 81% 80% 79% 88%
Ages 60+ 78% 71% 72% 70% 69% 82%
White 84% 78% 78% 78% 76% 87%
Black 90% 90% 87% 87% 86% 93%
Latinx 91% 88% 88% 87% 86% 93%
AAPI 84% 82% 82% 81% 81% 89%
Other race 92% 89% 89% 88% 88% 92%
Non-white 89% 88% 87% 86% 85% 92%
Cisgender Heterosexual 86% 83% 82% 81% 80% 89%
LGBTQ+ 91% 89% 89% 88% 88% 93%
Experienced housing discrimination for at least 1 protected identity 89% 87% 86% 86% 85% 91%
Never experienced housing discrimination for protected identity 84% 78% 79% 77% 76% 87%
<$50K household income 91% 89% 88% 87% 86% 92%
$50K–<$100K household income 86% 83% 83% 81% 81% 89%
$100K+ household Income 85% 81% 80% 80% 79% 88%
Not registered to vote 90% 86% 87% 84% 85% 91%
Registered to vote at current address 86% 82% 81% 80% 79% 89%
Registered to vote before, but has not updated registration since moving 89% 90% 90% 88% 88% 92%

 

Share of adults who say they would support allowing each type of home in their neighborhood (without conditions)

  ADUs Du/triplex Small condo/ apartment (fewer than 10 units) Medium condo/ apartment (10–49 units) Large condo/ apartment (50+ units) Any /at least one
Total 68% 59% 57% 50% 42% 82%
Atlanta 70% 43% 45% 37% 36% 81%
Boston 68% 61% 56% 43% 35% 86%
Chicago 69% 63% 60% 46% 41% 86%
Columbus 62% 57% 51% 46% 38% 81%
Dallas 71% 57% 52% 51% 42% 83%
Denver 76% 62% 55% 50% 44% 86%
Detroit 68% 57% 62% 52% 45% 85%
Houston 64% 52% 51% 43% 38% 78%
Las Vegas 70% 57% 60% 50% 45% 86%
Los Angeles 71% 65% 56% 49% 43% 86%
Miami 64% 56% 56% 48% 43% 86%
Minneapolis 64% 57% 51% 39% 37% 80%
Nashville 70% 51% 52% 40% 34% 81%
New York 65% 60% 62% 57% 46% 85%
Long Island 62% 54% 55% 48% 37% 78%
Philadelphia 70% 58% 55% 47% 39% 84%
Phoenix 65% 59% 56% 50% 40% 83%
Raleigh 68% 54% 50% 42% 34% 83%
Riverside 69% 60% 55% 50% 39% 88%
Sacramento 73% 62% 52% 52% 42% 84%
San Diego 76% 62% 60% 54% 45% 88%
San Francisco 71% 63% 58% 55% 43% 84%
San Jose 76% 62% 53% 45% 41% 91%
Seattle 71% 70% 64% 60% 44% 91%
St. Louis 65% 55% 51% 41% 33% 80%
Tampa 65% 51% 49% 43% 38% 81%
Washington, D.C. 67% 57% 63% 57% 50% 86%

 

  ADUs Du/triplex Small condo/ apartment (fewer than 10 units) Medium condo/ apartment (10-49 units) Large condo/ apartment (50+ units) Any / At least one
Total 68% 59% 57% 50% 42% 85%
Homeowner 66% 54% 52% 43% 37% 81%
Renter 71% 69% 66% 62% 51% 91%
Gen Z (ages 18–29) 71% 66% 62% 61% 54% 93%
Millennial (ages 30–44) 75% 69% 64% 61% 55% 89%
Generation X (ages 45–59) 68% 59% 56% 46% 38% 83%
Boomers & Silent Gen (ages 60+) 59% 44% 47% 32% 24% 74%
Ages 18–29 71% 66% 62% 61% 54% 93%
Ages 30–39 75% 69% 64% 61% 56% 91%
Ages 40–49 71% 65% 60% 54% 46% 85%
Ages 50–59 67% 58% 54% 45% 36% 83%
Ages 60+ 59% 44% 47% 32% 24% 74%
White 67% 55% 54% 47% 38% 81%
Black 71% 69% 63% 58% 48% 89%
Latinx 69% 61% 58% 51% 46% 89%
AAPI 64% 58% 57% 44% 39% 85%
Other race 75% 66% 65% 55% 49% 88%
Non-white 69% 63% 59% 52% 45% 88%
Cisgender Heterosexual 68% 59% 56% 48% 41% 84%
LGBTQ+ 72% 64% 62% 61% 54% 90%
Experienced housing discrimination for at least 1 protected identity 69% 65% 60% 55% 48% 88%
Never experienced housing discrimination for protected identity 66% 51% 53% 42% 34% 81%
<$50K household income 65% 62% 59% 54% 42% 88%
$50K–<$100K household income 68% 56% 55% 46% 38% 84%
$100K+ household income 72% 71% 66% 66% 60% 84%
Not registered to vote 68% 63% 60% 56% 47% 86%
Registered to vote at current address 69% 59% 56% 47% 38% 83%
Registered to vote before, but has not updated registration since moving 68% 58% 55% 48% 42% 90%

 

Share of adults who say allowing for more multifamily housing options in single-family neighborhoods would have a positive effect on:

Parking and traffic Availability of more affordable housing options Neighborhood amenities (e.g., parks, restaurants, community centers) Enabling homeowners to care for aging family members
Total 47% 70% 70% 75%
Atlanta 43% 65% 60% 70%
Boston 39% 71% 71% 80%
Chicago 49% 67% 70% 75%
Columbus 38% 69% 65% 76%
Dallas 47% 74% 70% 73%
Denver 40% 70% 68% 79%
Detroit 48% 68% 75% 75%
Houston 47% 68% 72% 76%
Las Vegas 44% 73% 71% 75%
Los Angeles 49% 66% 70% 75%
Miami 50% 67% 73% 67%
Minneapolis 37% 64% 63% 70%
Nashville 41% 67% 67% 76%
New York 53% 75% 74% 75%
Long Island 42% 68% 62% 70%
Philadelphia 40% 69% 67% 75%
Phoenix 48% 73% 67% 77%
Raleigh 41% 69% 69% 72%
Riverside 49% 75% 73% 72%
Sacramento 41% 70% 69% 78%
San Diego 41% 75% 75% 81%
San Francisco 37% 70% 68% 79%
San Jose 43% 73% 72% 81%
Seattle 42% 75% 73% 77%
St. Louis 44% 71% 70% 72%
Tampa 40% 65% 60% 70%
Washington, D.C. 48% 71% 74% 79%

 

Parking and traffic Availability of more affordable housing options Neighborhood amenities (e.g., parks, restaurants, community centers) Enabling homeowners to care for aging family members
Total 47% 70% 70% 75%
Homeowner 44% 67% 66% 75%
Renter 52% 75% 78% 76%
Gen Z (ages 18–29) 59% 76% 77% 73%
Millennial (ages 30–44) 61% 77% 77% 80%
Generation X (ages 45–59) 45% 68% 70% 74%
Boomers & Silent Gen (ages 60+) 25% 60% 59% 72%
18–29 59% 76% 77% 73%
30–39 62% 77% 78% 79%
40–49 51% 72% 73% 77%
50–59 45% 69% 68% 74%
60+ 25% 60% 59% 72%
White 43% 68% 68% 76%
Black 54% 79% 79% 73%
Latinx 53% 70% 72% 74%
AAPI 41% 67% 65% 73%
Other 45% 64% 76% 78%
Non-white 50% 71% 73% 74%
Cisgender heterosexual 46% 70% 70% 75%
LGBTQ+ 58% 71% 72% 73%
Experienced housing discrimination for at least 1 protected identity 54% 72% 74% 74%
Never experienced housing discrimination for protected identity 38% 67% 66% 76%
I am not registered to vote 48% 72% 69% 72%
I am registered to vote at my current address 43% 68% 68% 74%
I have registered to vote before, but have not updated my registration since I last moved 68% 80% 82% 81%
<$50K (net income) 52% 74% 76% 73%
$50K–<$100K 42% 67% 68% 72%
$100K+ (net income) 47% 69% 69% 78%

 

Consider housing affordability very/extremely important when deciding whom to vote for in this year’s federal elections
Total 52%
Homeowner 49%
Renter 59%
Gen Z (ages 18–29) 59%
Millennial (ages 30–44) 62%
Generation X (ages 45–59) 51%
Boomers & Silent Gen (ages 60+) 38%
Ages 18–29 59%
Ages 30–39 62%
Ages 40–49 60%
Ages 50–59 47%
Ages 60+ 38%
White 47%
Black 63%
Latinx 59%
AAPI 45%
Other race 58%
Non-white 57%
Cisgender heterosexual 51%
LGBTQ+ 61%
<$50K household income 44%
$50K–<$100K household income 50%
$100K+ household income 70%
Not registered to vote 58%
Registered to vote at current address 51%
Registered to vote before, but has not updated registration since moving 50%

 

Consider housing affordability very/extremely important when deciding whom to vote for in this year’s federal elections
Atlanta 53%
Boston 51%
Chicago 52%
Columbus 43%
Dallas 48%
Denver 51%
Detroit 54%
Houston 50%
Las Vegas 56%
Los Angeles 58%
Miami 52%
Minneapolis 40%
Nashville 45%
New York 52%
Long Island 44%
Philadelphia 49%
Phoenix 59%
Raleigh 43%
Riverside 53%
Sacramento 53%
San Diego 52%
San Francisco 48%
San Jose 52%
Seattle 64%
St. Louis 42%
Tampa 49%
Washington, D.C. 55%

 

Agree somewhat/completely with each statement

Homeowners should be allowed to convert their homes to add housing units (e.g., single-family to duplex, adding a mother- in-law unit, etc.) I’m very worried about traffic and parking in my neighborhood I would be willing to invest money to make my property a multifamily lot if it were allowed Having more affordable housing in my community is more important than free parking for myself Landlords in my state should be required to accept rent payments from tenants that rely on government assistance, like Social Security or housing vouchers
Total 73% 52% 53% 65% 73%
Homeowner 72% 53% 51% 60% 70%
Renter 75% 52% 57% 75% 78%
Gen Z (ages 18–29) 74% 55% 65% 72% 70%
Millennial (ages 30–44) 79% 60% 68% 73% 77%
Generation X (ages 45–59) 74% 52% 54% 64% 75%
Boomers & Silent Gen (ages 60+) 65% 43% 29% 52% 69%
Ages 18–29 74% 55% 65% 72% 70%
Ages 30–39 78% 60% 68% 72% 76%
Ages 40–49 80% 55% 62% 69% 77%
Ages 50–59 71% 52% 51% 64% 74%
Ages 60+ 65% 43% 29% 52% 69%
White 71% 50% 48% 62% 73%
Black 74% 54% 63% 75% 80%
Latinx 74% 57% 60% 67% 73%
AAPI 74% 54% 52% 59% 62%
Other race 79% 47% 45% 71% 77%
Non-white 74% 55% 58% 68% 73%
Cisgender Heterosexual 72% 52% 52% 65% 72%
LGBTQ+ 79% 55% 63% 69% 76%
Experienced housing discrimination for at least 1 protected identity 76% 58% 62% 69% 75%
Never experienced housing discrimination for protected identity 69% 45% 42% 60% 70%
<$50K household income 67% 49% 58% 69% 69%
$50K–<$100K household income 72% 50% 49% 62% 72%
$100K+ household income 81% 67% 73% 78% 79%
Not registered to vote 72% 51% 54% 73% 79%
Registered to vote at current address 71% 50% 49% 64% 73%
Registered to vote before, but has not updated registration since moving 74% 54% 55% 62% 70%

 

Homeowners should be allowed to convert their homes to add housing units (e.g., single-family to duplex, adding a mother- in-law unit, etc.) I’m very worried about traffic and parking in my neighborhood I would be willing to invest money to make my property a multifamily lot if it were allowed Having more affordable housing in my community is more important than free parking for myself Landlords in my state should be required to accept rent payments from tenants that rely on government assistance, like Social Security or housing vouchers
Total 73% 52% 53% 65% 73%
Atlanta 71% 42% 46% 61% 68%
Boston 77% 48% 49% 64% 69%
Chicago 75% 43% 56% 64% 73%
Columbus 69% 33% 41% 66% 70%
Dallas 72% 51% 51% 64% 65%
Denver 75% 51% 50% 72% 77%
Detroit 71% 46% 47% 67% 73%
Houston 68% 50% 50% 63% 67%
Las Vegas 71% 43% 58% 71% 72%
Los Angeles 78% 63% 59% 63% 72%
Miami 71% 56% 51% 66% 73%
Minneapolis 71% 36% 38% 61% 65%
Nashville 73% 48% 39% 63% 73%
New York 71% 58% 58% 67% 79%
Long Island 75% 54% 53% 62% 69%
Philadelphia 71% 46% 43% 60% 72%
Phoenix 69% 53% 52% 69% 74%
Raleigh 73% 41% 45% 65% 71%
Riverside 74% 48% 54% 69% 76%
Sacramento 76% 47% 49% 64% 69%
San Diego 71% 64% 51% 70% 74%
San Francisco 75% 54% 57% 62% 68%
San Jose 72% 47% 54% 67% 68%
Seattle 76% 59% 62% 72% 81%
St. Louis 67% 40% 43% 66% 73%
Tampa 72% 45% 47% 62% 70%
Washington, D.C. 73% 54% 52% 67% 72%

 

Homeowners should be allowed to convert their homes to add housing units (e.g., single-family to duplex, adding a mother-in-law unit, etc.) 2019 2022 2023 2024
Total – among homeowners only 57% 64% 68% 73%
Atlanta 54% 57% 61% 70%
Boston 63% 72% 69% 81%
Chicago 52% 68% 67% 73%
Dallas 51% 63% 66% 73%
Denver 54% 57% 70% 79%
Detroit 47% 56% 62% 68%
Las Vegas 52% 56% 61% 68%
Los Angeles 57% 70% 75% 79%
Miami 63% 57% 65% 66%
Minneapolis 57% 55% 68% 71%
New York 55% 66% 70% 70%
Philadelphia 58% 68% 68% 70%
Phoenix 50% 60% 64% 68%
St. Louis 53% 60% 63% 62%
San Diego 70% 62% 74% 75%
San Francisco 64% 64% 75% 75%
San Jose 60% 66% 82% 76%
Seattle 67% 69% 73% 78%
Tampa 58% 65% 67% 68%
Washington, D.C. 59% 59% 73% 70%

 

Agree somewhat/ completely Total Gen Z (ages 18–29) Millennial (ages 30–44) Generation X (ages 45–59) Boomers & Silent Gen (ages 60+)
Owning a home is necessary to live the American Dream 70% 77% 75% 70% 61%
Owning a home is critical to building and passing on generational wealth 78% 76% 81% 79% 73%

 

Agree somewhat/ completely Total 18–29 30–39 40–49 50–59 60+
Owning a home is necessary to live the American Dream 70% 77% 76% 71% 71% 61%
Owning a home is critical to building and passing on generational wealth 78% 76% 82% 80% 79% 73%

 

Methodology

In order to gain a comprehensive understanding of adults ages 18 and older, Zillow Group Population Science conducted a representative survey of more than 12,000 adults across 26 metros: Atlanta, Boston, Chicago, Columbus, Dallas, Denver, Detroit, Houston, Las Vegas, Los Angeles, Miami, Minneapolis, Nashville, New York (with additional sampling to produce estimates for Long Island), Philadelphia, Phoenix, Raleigh, Riverside, Sacramento, San Diego, San Francisco, San Jose, Seattle, St. Louis, Tampa, Washington, D.C. metropolitan areas. The survey was fielded in March and April 2024.

Sampling & weighting

Results from this survey are representative of adults in each metropolitan area. To achieve representativeness, ZG Population Science used a two-pronged approach. First, the initial recruitment to the sample was balanced to all adults from the U.S. Census Bureau’s 2022 American Community Survey (ACS) on the basis of age, relationship status, income, ethnicity/race, education and sex. Additional targeted subgroups were sampled based on all key household demographic characteristics. Second, statistical raking was used to create calibration weights to ensure that the distribution of survey respondents matched each metro’s population with respect to a number of key demographic characteristics.

About the author

Manny is a Senior Population Scientist at Zillow.
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