diff --git a/flow/designs/sky130hd/aes/autotuner.json b/flow/designs/sky130hd/aes/autotuner.json
index 2d79614ae7..23316d901a 100644
--- a/flow/designs/sky130hd/aes/autotuner.json
+++ b/flow/designs/sky130hd/aes/autotuner.json
@@ -24,14 +24,6 @@
         ],
         "step": 0
     },
-    "CORE_MARGIN": {
-        "type": "int",
-        "minmax": [
-            2,
-            2
-        ],
-        "step": 0
-    },
     "CELL_PAD_IN_SITES_GLOBAL_PLACEMENT": {
         "type": "int",
         "minmax": [
@@ -64,14 +56,6 @@
         ],
         "step": 0
     },
-    "_PINS_DISTANCE": {
-        "type": "int",
-        "minmax": [
-            1,
-            1
-        ],
-        "step": 1
-    },
     "CTS_CLUSTER_SIZE": {
         "type": "int",
         "minmax": [
diff --git a/flow/designs/sky130hd/ibex/autotuner.json b/flow/designs/sky130hd/ibex/autotuner.json
index f9d5cd77ff..a68e1f0f24 100644
--- a/flow/designs/sky130hd/ibex/autotuner.json
+++ b/flow/designs/sky130hd/ibex/autotuner.json
@@ -24,14 +24,6 @@
         ],
         "step": 0
     },
-    "CORE_MARGIN": {
-        "type": "int",
-        "minmax": [
-            2,
-            2
-        ],
-        "step": 0
-    },
     "CELL_PAD_IN_SITES_GLOBAL_PLACEMENT": {
         "type": "int",
         "minmax": [
@@ -64,14 +56,6 @@
         ],
         "step": 0
     },
-    "_PINS_DISTANCE": {
-        "type": "int",
-        "minmax": [
-            1,
-            1
-        ],
-        "step": 1
-    },
     "CTS_CLUSTER_SIZE": {
         "type": "int",
         "minmax": [
diff --git a/flow/designs/sky130hd/jpeg/autotuner.json b/flow/designs/sky130hd/jpeg/autotuner.json
index f59cf3b95e..49d4cea07c 100644
--- a/flow/designs/sky130hd/jpeg/autotuner.json
+++ b/flow/designs/sky130hd/jpeg/autotuner.json
@@ -24,14 +24,6 @@
         ],
         "step": 0
     },
-    "CORE_MARGIN": {
-        "type": "int",
-        "minmax": [
-            2,
-            2
-        ],
-        "step": 0
-    },
     "CELL_PAD_IN_SITES_GLOBAL_PLACEMENT": {
         "type": "int",
         "minmax": [
@@ -64,14 +56,6 @@
         ],
         "step": 0
     },
-    "_PINS_DISTANCE": {
-        "type": "int",
-        "minmax": [
-            1,
-            1
-        ],
-        "step": 1
-    },
     "CTS_CLUSTER_SIZE": {
         "type": "int",
         "minmax": [