diff --git a/antarest/study/business/areas/properties_management.py b/antarest/study/business/areas/properties_management.py
index 1c18ca2b45..5b1a88546b 100644
--- a/antarest/study/business/areas/properties_management.py
+++ b/antarest/study/business/areas/properties_management.py
@@ -20,21 +20,6 @@
 # Keep the order
 FILTER_OPTIONS = ["hourly", "daily", "weekly", "monthly", "annual"]
 DEFAULT_FILTER_VALUE = FILTER_OPTIONS
-DEFAULT_UI = {
-    "color_r": 230,
-    "color_g": 108,
-    "color_b": 44,
-}
-
-
-def encode_color(ui: Dict[str, Any]) -> str:
-    data = {**DEFAULT_UI, **ui}
-    return f"{data['color_r']},{data['color_g']},{data['color_b']}"
-
-
-def decode_color(encoded_color: str, current_ui: Optional[Dict[str, int]]) -> Dict[str, Any]:
-    r, g, b = map(int, encoded_color.split(","))
-    return {**(current_ui or {}), "color_r": r, "color_g": g, "color_b": b}
 
 
 def sort_filter_options(options: Iterable[str]) -> List[str]:
@@ -60,9 +45,6 @@ class AdequacyPatchMode(EnumIgnoreCase):
 
 
 class PropertiesFormFields(FormFieldsBaseModel):
-    color: Optional[str] = Field(regex="^\s*\d{1,3}\s*,\s*\d{1,3}\s*,\s*\d{1,3}\s*$")
-    pos_x: Optional[float]
-    pos_y: Optional[float]
     energy_cost_unsupplied: Optional[float]
     energy_cost_spilled: Optional[float]
     non_dispatch_power: Optional[bool]
@@ -89,21 +71,6 @@ def validation(cls, values: Dict[str, Any]) -> Dict[str, Any]:
 
 
 FIELDS_INFO: Dict[str, FieldInfo] = {
-    # `color` must be before `pos_x` and `pos_y`, because they are include in the `decode_color`'s return dict value
-    "color": {
-        "path": UI_PATH,
-        "encode": encode_color,
-        "decode": decode_color,
-        "default_value": encode_color(DEFAULT_UI),
-    },
-    "pos_x": {
-        "path": f"{UI_PATH}/x",
-        "default_value": 0.0,
-    },
-    "pos_y": {
-        "path": f"{UI_PATH}/y",
-        "default_value": 0.0,
-    },
     "energy_cost_unsupplied": {
         "path": THERMAL_PATH.format(field="unserverdenergycost"),
         "default_value": 0.0,
diff --git a/tests/integration/test_integration.py b/tests/integration/test_integration.py
index ffa4d4a91d..1dc1b385ae 100644
--- a/tests/integration/test_integration.py
+++ b/tests/integration/test_integration.py
@@ -1095,9 +1095,6 @@ def test_area_management(client: TestClient, admin_access_token: str, study_id:
     res_properties_config_json["filterSynthesis"] = set(res_properties_config_json["filterSynthesis"])
     res_properties_config_json["filterByYear"] = set(res_properties_config_json["filterByYear"])
     assert res_properties_config_json == {
-        "color": "230,108,44",
-        "posX": 0.0,
-        "posY": 0.0,
         "energyCostUnsupplied": 0.0,
         "energyCostSpilled": 0.0,
         "nonDispatchPower": True,
@@ -1112,9 +1109,6 @@ def test_area_management(client: TestClient, admin_access_token: str, study_id:
         f"/v1/studies/{study_id}/areas/area 1/properties/form",
         headers=admin_headers,
         json={
-            "color": "123,108,96",
-            "posX": 3.4,
-            "posY": 9.0,
             "energyCostUnsupplied": 2.0,
             "energyCostSpilled": 4.0,
             "nonDispatchPower": False,
@@ -1130,9 +1124,6 @@ def test_area_management(client: TestClient, admin_access_token: str, study_id:
     res_properties_config_json["filterSynthesis"] = set(res_properties_config_json["filterSynthesis"])
     res_properties_config_json["filterByYear"] = set(res_properties_config_json["filterByYear"])
     assert res_properties_config_json == {
-        "color": "123,108,96",
-        "posX": 3.4,
-        "posY": 9.0,
         "energyCostUnsupplied": 2.0,
         "energyCostSpilled": 4.0,
         "nonDispatchPower": False,