diff --git a/backend/app/services/cadastre/bulk_harvest.py b/backend/app/services/cadastre/bulk_harvest.py
index 50d12ffc..0770bf1a 100644
--- a/backend/app/services/cadastre/bulk_harvest.py
+++ b/backend/app/services/cadastre/bulk_harvest.py
@@ -523,7 +523,7 @@ def upsert_parcel(db: Session, feature: NSPDBulkFeature, source: str = "search")
             "readable_address": raw_opts.get("readable_address"),
             "status": raw_opts.get("status"),
             "previously_posted": raw_opts.get("previously_posted"),
-            "registration_date": raw_opts.get("registration_date"),
+            "registration_date": _parse_nspd_date(raw_opts.get("registration_date")),
             "subcategory": _safe_int(raw_opts.get("subcategory")),
             "cadastral_districts_code": _safe_int(raw_opts.get("cadastral_districts_code")),
             "geom": geom_json,
@@ -638,8 +638,10 @@ def upsert_building(db: Session, feature: NSPDBulkFeature, source: str = "search
             "cost_index": _safe_numeric(raw_opts.get("cost_index")),
             "year_built": _safe_int(raw_opts.get("year_built")),
             "year_commisioning": _safe_int(raw_opts.get("year_commisioning")),
-            "build_record_registration_date": raw_opts.get("build_record_registration_date"),
-            "registration_date": raw_opts.get("registration_date"),
+            "build_record_registration_date": _parse_nspd_date(
+                raw_opts.get("build_record_registration_date")
+            ),
+            "registration_date": _parse_nspd_date(raw_opts.get("registration_date")),
             "ownership_type": raw_opts.get("ownership_type"),
             "cultural_heritage_object": cultural_heritage_bool,
             "cultural_heritage_val": ch_str,
@@ -769,7 +771,7 @@ def upsert_construction(db: Session, feature: NSPDBulkFeature, source: str = "se
             "address_readable_address": raw_opts.get("address_readable_address"),
             "status": raw_opts.get("status"),
             "common_data_status": raw_opts.get("common_data_status"),
-            "registration_date": raw_opts.get("registration_date"),
+            "registration_date": _parse_nspd_date(raw_opts.get("registration_date")),
             "registers_id": _safe_int(raw_opts.get("registers_id")),
             "united_cad_number": raw_opts.get("united_cad_number"),
             "geom": geom_json,
@@ -893,7 +895,7 @@ def upsert_enk(db: Session, feature: NSPDBulkFeature, source: str = "search") ->
             "cost_value": _safe_numeric(raw_opts.get("cost_value")),
             "facility_cad_number": raw_opts.get("facility_cad_number"),
             "readable_address": raw_opts.get("readable_address"),
-            "registration_date": raw_opts.get("registration_date"),
+            "registration_date": _parse_nspd_date(raw_opts.get("registration_date")),
             "registers_id": _safe_int(raw_opts.get("registers_id")),
             "geom": geom_json,
             "raw_props": json.dumps(raw_opts, ensure_ascii=False),
@@ -996,10 +998,10 @@ def upsert_zouit(db: Session, feature: NSPDBulkFeature, source: str = "search")
             "content_restrict_encumbrances": raw_opts.get("content_restrict_encumbrances"),
             "name_by_doc": raw_opts.get("name_by_doc"),
             "legal_act_name": raw_opts.get("legal_act_name"),
-            "legal_act_date": raw_opts.get("legal_act_date"),
+            "legal_act_date": _parse_nspd_date(raw_opts.get("legal_act_date")),
             "legal_act_number": raw_opts.get("legal_act_number"),
             "legal_act_issuer": raw_opts.get("legal_act_issuer"),
-            "registration_date": raw_opts.get("registration_date"),
+            "registration_date": _parse_nspd_date(raw_opts.get("registration_date")),
             "old_account_number": raw_opts.get("old_account_number"),
             "geom": geom_json,
             "raw_props": json.dumps(raw_opts, ensure_ascii=False),
@@ -1203,3 +1205,31 @@ def _safe_int(value: Any) -> int | None:
         return int(value)
     except (ValueError, TypeError):
         return None
+
+
+def _parse_nspd_date(value: Any) -> str | None:
+    """Конвертировать NSPD date в ISO YYYY-MM-DD string.
+
+    NSPD возвращает даты в смешанных форматах:
+    - '13.03.2023' (DD.MM.YYYY — для Сооружения/ОНС/ЕНК)
+    - '2023-03-13' (ISO — для ЗУ/Здания)
+    - '2023-03-13 00:00:00' (ISO with time)
+    - None / empty string
+
+    PostgreSQL DATE cast принимает ISO. Без conversion DD.MM.YYYY → DatetimeFieldOverflow
+    crash в upsert_*.
+    """
+    if value is None or value == "":
+        return None
+    if not isinstance(value, str):
+        return None
+    s = value.strip()
+    # ISO format already — pass through (PG accept YYYY-MM-DD)
+    if len(s) >= 10 and s[4] == "-" and s[7] == "-":
+        return s[:10]
+    # DD.MM.YYYY → YYYY-MM-DD
+    if len(s) == 10 and s[2] == "." and s[5] == ".":
+        parts = s.split(".")
+        if len(parts) == 3 and all(p.isdigit() for p in parts):
+            return f"{parts[2]}-{parts[1]}-{parts[0]}"
+    return None
diff --git a/backend/tests/services/test_cadastre_bulk.py b/backend/tests/services/test_cadastre_bulk.py
index 19909e3b..8369f30d 100644
--- a/backend/tests/services/test_cadastre_bulk.py
+++ b/backend/tests/services/test_cadastre_bulk.py
@@ -168,6 +168,32 @@ def test_safe_int_none_returns_none() -> None:
     assert _safe_int(None) is None
 
 
+def test_parse_nspd_date_handles_dd_mm_yyyy() -> None:
+    """NSPD Сооружения/ОНС/ЕНК отдают даты в DD.MM.YYYY → конвертируем в ISO."""
+    from app.services.cadastre.bulk_harvest import _parse_nspd_date
+
+    assert _parse_nspd_date("13.03.2023") == "2023-03-13"
+    assert _parse_nspd_date("24.02.2022") == "2022-02-24"
+
+
+def test_parse_nspd_date_passes_through_iso() -> None:
+    """ISO формат (YYYY-MM-DD) уже валидный — pass через."""
+    from app.services.cadastre.bulk_harvest import _parse_nspd_date
+
+    assert _parse_nspd_date("2023-03-13") == "2023-03-13"
+    assert _parse_nspd_date("2010-08-12 00:00:00") == "2010-08-12"
+
+
+def test_parse_nspd_date_none_and_invalid() -> None:
+    """None / empty string / garbage → None."""
+    from app.services.cadastre.bulk_harvest import _parse_nspd_date
+
+    assert _parse_nspd_date(None) is None
+    assert _parse_nspd_date("") is None
+    assert _parse_nspd_date("nonsense") is None
+    assert _parse_nspd_date(123) is None  # not str
+
+
 # ── Grid geometry ────────────────────────────────────────────────────────────