EP 1110-1-31
31 Aug 01
Table B-1 (Continued)
Number of Units to be Tested in Multifamily Developments
Number of Similar Units,
Pre -1960 or Unknown-age
1960-1977 building or
Similar Common Areas, or
Building or Development:
Development: Number to
exterior Site in a Building or
Number to Test
Test
Development
219-258
52
27
259-279
53
27
280-299
53
28
300-379
54
28
380-499
55
28
500-776
56
28
777-939
57
28
940-1004
57
29
1005-1022
58
29
1023-1032
59
29
1033-1039
59
30
1500
87
44
2000
116
58
2500
145
73
3000
174
87
3500
203
102
4000
232
116
*Adapted from Table 7.3 of the 1997 Revision to the HUD Guidelines.
**Follow the procedures outlined in Section V of Chapter 7 of the HUD Guidelines (1997 Revision):
...multifamily housing is defined as any group of units that are similar in construction from unit to unit, with:
21 or more units, if any were built before 1960 or are of unknown age, or
10 or more units, if they were all built from 1960 through 1977.
Developments with fewer units should be treated as a series of single-family housing units.
The number of similar units, similar common areas or exterior sites to be tested (the sample size) is based on the total
number units, similar common areas or exterior sites in the building(s), as specified in Table 7.3. Use the table for
sampling each set of similar units, each set of similar common areas and each set of exterior sites. For pre-1960 or
unknown-age buildings or development with 1,040 or more similar units, similar common areas or exterior sites, test 5.8
percent of them, and round up any fraction to the next whole number. For 1960 -1977 buildings or developments with
1,000 or more units, test 2.9 percent of the units, and round up any fraction to the next whole number. For reference, the
table shows entries from 1500 to 1000 in steps of 500. For example, in a development built in 1962, with 200 similar units,
20 similar common areas, and 9 similar exterior sites, sample 27 units, 16 common areas, and all 9 exterior sites.
Appendix 12 of the HUD Guidelines details the statistical rationale for this table.
B-4
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