Tear_Down_Analysis (FeatureServer)

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Service Description: This map shows tax parcels where a demolition permit was issued for a single family home, followed by a subsequent new single family construction permit. The data tracks these tear downs and rebuilds from 2010-2020 for the Fulton County portion of the City of Atlanta only.

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Description: As Atlanta continues to rapidly grow, neighborhoods are changing. One phenomenon that is anecdotally observable in the city is the construction of large homes in existing neighborhoods. To quantify this phenomenon, this analysis uses data from the City of Atlanta's Accela database to match tax parcels where single family demolition permits were issued and subsequently followed by a new single family construction permit between 2010-2020. We then analyzed tax data from these parcels to show how the Improvement Appraisal value changed at various intervals: year-to-year, 2010-2015, 2015-2020, and 2010-2020. The Improvement Appraisal signifies the appraised value of the improvements on a parcel where improvements refer to built structures rather than the value of the land itself. Thus our analysis tracks changes in value related to the homes themselves as they are torn down and rebuilt.

SUMMARY OF FINDINGS

There are several interesting findings observable in the data and displayed in the related Story Map that uses these layers:

4,367 single family residential demolition permits were issued between 2010-2020. 6,597 new SF construction permits were issued in that same time period. 2,393 parcels were both demolished and then rebuilt, and this is this is 55% of all demolition permits and 36% of all new SF construction permits.
Of the 2,393 tear downs/rebuilds, 496 were located in Dekalb portions of the City of Atlanta, which is 21% of tear downs/rebuilds. Dekalb does not keep regular tax digests available so the parcels with tear downs/rebuilds in Dekalb could not be matched to tax records.
That leaves 1,897 tear down/rebuilds in the Fulton County portion of the City of Atlanta for which we have detailed tax data. Analyzing this data, we found

The maximum percentage change in improvement value in any one parcel between 2010-2020 for these 1,897 parcels was 23,192% (This parcel had a 2010 improvement appraisal value of $1400 that by 2020 had an improvement appraisal value of $326,100).
38% of tear downs (712 parcels) saw improvement appraisal value increases of over 500%.
86% of tear downs (1,637 parcels) saw improvement appraisal value increases of at least 100% (i.e. they doubled in improvement appraisal value).
The median percent change in improvement appraisal value from 2010-2020 was 413% with a mean of 667%.

WHERE WAS TEAR DOWN ACTIVITY MOST FREQUENT?

NOTES ABOUT THE DATA

As previously noted, tax data from the Dekalb County portions of the City of Atlanta were not immediately available for this analysis.
Data on square footage would have improved the analysis. Unfortunately, this data is not consistently gathered within the Accela database system and could not be relied upon in terms of accuracy.
When calculating percent change, improvement appraisal values of 0 have to be dealt with. For example, if a property had an improvement appraisal value of 0$ in 2010 but a value of $25,000 in 2011, the percent change in value is listed as NA in the attribute table.

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Spatial Reference: 102667 (2240)

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Units: esriFeet

Child Resources: Info SharedTemplates

Supported Operations: Query ConvertFormat Get Estimates