4 Years of Missing Middle Housing Production Data in Oregon Large Cities: 7,795 (13%) Missing Middle Units Out of Total of 59,144 Units Produced.

HB 2006 was enacted in 2018 and requires Oregon large cities to report housing permits and production annually to DLCD. As was the case in past years I was able to get the data from DLCD and combined 4 years of data to get annual and cumulative production of all housing types. [ I focus on PRODUCTION, not permits as there are multiple sources of permitting data but this is the ONLY public source for production data I have found]. 

At some point I will publish an Excel file with all the permitting and production data (including multifamily that is largely excluded from this report) but for now I wanted to focus on counts of total production and missing middle production.  

The 22 page PDF file HERE has that data. The first two pages are graphs showing annual housing production including total production and expanded missing middle production and the share of that production came from Portland metro cities and the City of Portland. [I have pasted the annual production graph below].. 

The next 20 pages include 4 pages for each time period starting with cumulative 2018-2021and then 4 pages for 2021, 4 pages for 2000, etc. 

On pages 3-7 in the 2018-2021 summary  data I added 3 additional columns that show the total production rate and missing middle housing production rate per 1,000 units in the 2020 Census. 

Each page includes a narrow and expanded missing middle unit count. The narrow definition counts only units that are detached SF, duplex, triplex, and 4 plex. The expanded missing middle count adds manufactured homes and ADU's to the narrow missing middle count.[These two additional housing types are NOT included in HB 2006]. 

Counts for each missing middle unit type are included for all cities and all years as are counts of TOTAL SF production, not just detached.

At the top of each page I include the total for all cities, the total for Portland metro cities and the total for the City of Portland. The share of the total for all cities from Portland metro cities and the City of Portland is also shown at the top of all pages.

Observations: 

There are a total of 56 cities with reported data. Because cities are added based on population, not all cities reported in all 4 years. 

Despite a February deadline several cities do not report data timely. For 2021 I count 6 cities whose reports had not yet been received, but most were small enough that they would not significantly impact production and especially missing middle production. 

Production Totals and Portland Metro and City of Portland Share of Totals.

1. From 2018-2021 all cities reported 59,144 units produced, with 4,991 narrowly defined missing middle units and 7,795 expanded missing middle housing units. That's 8.4% and 13.2% of all housing units produced.
2. Portland metro cities had 51% of the Census 2020 housing stock in the cities that reported from 2018-2021. Portland metro cities reported 59% of total housing production,  54% of the narrowly defined missing middle housing units produced and 55% of the the expanded missing middle housing units produced.
3. The City of Portland had 27% of the Census 2020 housing stock in the cities that reported from 2018-2021. The City of Portland reported 39% of total housing production, 27% of the narrowly defined missing middle housing units produced and a larger 36% of the the expanded missing middle housing units produced (This larger share was because Portland accounted for 67% [1,478 units] of  the 2,192 reported ADU units produced).
4. After Portland [ 23,280 units], Salem had the second largest count of reported TOTAL units produced with 4,149 units.
5. After Portland [2,827 units], Bend had the second largest count of reported missing middle (expanded definition) unit produced with 807 units. 

Rates of Production vs. Total Units in the 2020 Census

1. Portland metro cities (expanded missing middle definition) reported the production of 1.9 units per 1,000 total housing units in the 2020 census. This was higher than all reporting cities who produced 1.8 missing middle housing units per 1,000 units in the 2020 census.
2. Portland (expanded missing middle definition) reported the production of 2.3 units per 1,000 total housing units in the 2020 census. This was higher than all reporting cities who produced 1.8 missing middle housing units per 1,000 units in the 2020 census.  
3. There were 16 cities where their rate per 1,000 housing units in the 2020 census for total or missing middle production exceeded the average for all large cities. Those cities are color coded green in in the  3 columns to the far right on each page from page 3 to page 22. 
4. Redmond (46.8) and Cornelius (44) had the HIGHEST rate of TOTAL production units per 1,000 housing units in the 2020 Census. 
5. Cornelius (9.9) and Happy Valley (6.1) had the HIGHEST rate of MISSING MIDDLE (expanded definition) units per 1,000 housing units in the 2020 Census. 

NOTE:

PDF file layout is landscape and legal size. I had no difficulty in printing letter sized after "shrinking oversized pages" in my printer preferences. 

Originally created and posted on the Oregon Housing Blog.