integrating parcels data collection, cleaning, and analysis into the grater react dataset

.gitignore

@@ -1,4 +1,4 @@
-## Build files 
+## Build files
 */Data/_Processed/
 
 # random stuff that's too big or unneeded to push
@@ -55,5 +55,10 @@ backend/logger/*.log
 out/
 dist/
 backend/Data/Census/**/*.csv
+backend/Data/_Processed/parcels/
+**/.jupyter_cache/
+backend/notebooks/**/*.html
+backend/notebooks/**/*_files/
+backend/notebooks/**/*.ipynb
 
 tmp/

backend/api/routes/post_routes/__init__.py

@@ -2,6 +2,7 @@
 from .post_cdc import router as post_cdc_router
 from .post_census import router as post_census_router
 from .post_export import router as post_export_router
+from .post_parcels import router as post_parcels_router
 from .post_qcew import router as post_qcew_router
 from .post_zoning import router as post_zoning_router
 from .post_wastewater import router as post_wastewater_router
@@ -14,4 +15,5 @@
     post_wastewater_router,
     post_export_router,
     post_cdc_router,
+    post_parcels_router,
 ]

backend/api/routes/post_routes/post_parcels.py

@@ -0,0 +1,14 @@
+from fastapi import APIRouter, Response
+
+from api.core_functions import request_to_source
+from api.models import FilterRequest
+from query.parcels import get_parcels_geojson
+
+router = APIRouter()
+
+
+@router.post("/load/mapping/parcels")
+async def read_parcels(request: FilterRequest):
+    source = request_to_source(request, "parcels_info", "default")
+    data = get_parcels_geojson([source])
+    return Response(content=data, media_type="application/json")

backend/api/schema.json

@@ -47,6 +47,13 @@
         "Prevalence Measure": "Data_Value_Type"
       }
     },
+        "parcels_info": {
+      "join_key": "OBJECTID",
+      "join_type": "inner",
+      "columns": {
+        "Town": "TOWN",
+        "Category": "CAT",
+        "Property Type": "PROPTYPE",
     "soil_suitability_info_soil_suit": {
       "join_key": "ID",
       "join_type": "inner",
@@ -87,4 +94,4 @@
       }
     }
   }
-}
+}}}

backend/build/main.py

@@ -7,7 +7,7 @@
     Runs all the build scripts one after the other.
 """
 
-from build import FIPS_data, acs5, cdc, wastewater, zoning
+from build import FIPS_data, acs5, cdc, parcels, wastewater, zoning
 
 
 def main():
@@ -17,6 +17,7 @@ def main():
     # information here" layer subtracts the districts from -- so it runs first.
     FIPS_data.main()
     zoning.main()
+    parcels.main()
     wastewater.main()
 
 

backend/build/parcels.py

@@ -0,0 +1,94 @@
+"""
+**Author**:
+    Isaac Wedaman
+**Created**:
+    2026-07-23
+**Description**:
+    Build script to convert the CDC-places csv data into a single vermont-based SQL table.
+"""
+
+from pathlib import Path
+
+from build import BACKEND, CON
+
+data_directory = Path("Data")
+parcels_fgb = Path("Data/parcels/parcels_f.fgb")
+parcel_path = data_directory / "parcels" / "parcels_vermont.geojson"
+
+
+proc_dir = BACKEND / "Data" / "_Processed" / "parcels"
+TABLES = ["geom", "info"]
+INFO_COLS = [
+    "OBJECTID",
+    "SPAN",
+    "CAT",
+    "RESCODE",
+    "PARCID",
+    "CITYGL",
+    "TOWN",
+    "ZIPGL",
+    "PROPTYPE",
+    "DESCPROP",
+    "SOURCENAME",
+    "YEAR",
+    "ACRESGL",
+    "REAL_FLV",
+    "HSTED_FLV",
+    "IMPRV_LV",
+]
+
+
+def load_dataset():
+    if not parcels_fgb.exists():
+        CON.execute(f"""
+            COPY (
+                SELECT * FROM ST_Read('{parcel_path}')
+                WHERE geom IS NOT NULL
+            )
+            TO '{parcels_fgb}' (FORMAT GDAL, DRIVER 'FlatGeobuf')
+        """)
+    CON.execute(
+        "CREATE OR REPLACE VIEW parcels_raw AS SELECT * FROM ST_Read('Data/Parcels/parcels_f.fgb')"
+    )
+
+    CON.execute("""
+    CREATE OR REPLACE VIEW final_view AS
+    SELECT 
+        * EXCLUDE (TOWN),
+        UPPER(TOWN) AS TOWN,
+    FROM parcels_raw;
+    """)
+
+
+def load_geom():
+    CON.execute("""
+    CREATE OR REPLACE VIEW geom AS
+    SELECT OBJECTID, geom FROM final_view
+    """)
+
+
+def load_info():
+    CON.execute("""CREATE OR REPLACE VIEW info AS
+    SELECT OBJECTID, SPAN, CAT, RESCODE, PARCID, CITYGL, TOWN, ZIPGL, PROPTYPE, DESCPROP, SOURCENAME, YEAR,
+    ACRESGL, REAL_FLV, HSTED_FLV, IMPRV_LV
+    FROM final_view""")
+
+
+def final_writing():
+    path = Path("Data/_Processed/parcels")
+    path.mkdir(parents=True, exist_ok=True)
+    for item in ["info", "geom"]:
+        CON.execute(
+            f"COPY (SELECT * FROM {item}) TO '{path / f'{item}.parquet'}' (FORMAT PARQUET)"
+        )
+
+
+def main():
+    load_dataset()
+    load_geom()
+    load_info()
+    final_writing()
+
+
+if __name__ == "__main__":
+    main()