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Date:   1/22/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     12:53                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        015-901-015 Alamo Heights

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                                                              (1)                         (2)
  (1)                  (1)                        (1)       Stratum         (1)         Sample
Stratum              Category                 Local Value    Ratio      State Value      Size
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  1      A  - Single-family Residences        566,383,584    1.0123     559,501,713       43
  2      A  - Single-family Residences        565,906,830     .9998     566,020,034       52
  3      A  - Single-family Residences        565,906,830    1.0052     562,979,337       52
  4      A  - Single-family Residences        565,668,453    1.0233     552,788,481       23
  5      F  - Commercial Real                 160,255,998     .8701     184,181,126        8
  6      F  - Commercial Real                 160,458,598     .8324     192,766,216        9
  7      F  - Commercial Real                 166,941,773     .9703     172,051,709        8
  8      F  - Commercial Real                 153,502,690     .9399     163,318,108        4
  9      L  - Commercial Personal              56,844,150    1.0681      53,219,876        7
 10      L  - Commercial Personal              56,700,966    1.0004      56,678,295        7
 11      L  - Commercial Personal              57,011,199    1.0253      55,604,407        6
 12      L  - Commercial Personal              56,175,957    1.0267      54,715,065        4

Random Totals:                              3,131,757,028             3,173,824,367      223
 Cat J Exception Values:                                0                         0
 Cat D1 Exception Values:                               0                         0
 Other Exception Values:                                0                         0
Exception Totals(3):                                    0                         0
Test Values(4):                             3,131,757,028             3,173,824,367

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                    158,691,218
Confidence Interval Values:
  State Lower Limit:                                    3,015,133,149  (State Test Value Minus Margin of Error Value)
  Local Test Value:                                     3,131,757,028  (Within Confidence Interval Limits)
  State Upper Limit:                                    3,332,515,585  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                     3,073,524,235  (See ISD Summary Worksheet)


Sources:

(1) See Stratified Ratio Detail Report VAL7214.
(2) Number of parcels sampled by staff.
(3) Exception value includes, if tested, D1, the J sample, and any parcels in A,B,C,D,F1,G or L1 marked as exception properties.
(4) Unstudied categories and sub-categories were not included in the test values.
(5) Includes local value of unstudied property categories and sub-categories.