diff --git a/martin.yaml b/martin.yaml
index 86191fa..dd536e8 100644
--- a/martin.yaml
+++ b/martin.yaml
@@ -100,7 +100,7 @@ postgres:
       geometry_column: geom
       srid: 3844
       bounds: [20.2, 43.5, 30.0, 48.3]
-      minzoom: 10
+      minzoom: 13
       maxzoom: 18
       properties:
         object_id: text
@@ -120,7 +120,7 @@ postgres:
       geometry_column: geom
       srid: 3844
       bounds: [20.2, 43.5, 30.0, 48.3]
-      minzoom: 12
+      minzoom: 14
       maxzoom: 18
       properties:
         object_id: text
diff --git a/src/app/(portal)/portal/page.tsx b/src/app/(portal)/portal/page.tsx
index e6349fb..dae2fb8 100644
--- a/src/app/(portal)/portal/page.tsx
+++ b/src/app/(portal)/portal/page.tsx
@@ -1242,6 +1242,36 @@ function HartaContent() {
       .catch(() => {});
   }, [selectedSiruta]);
 
+  // Hide basemap admin boundaries + our UAT layers
+  const cleanedBasemapRef = useRef(false);
+  useEffect(() => {
+    if (!mapReady) { cleanedBasemapRef.current = false; return; }
+    if (cleanedBasemapRef.current) return;
+    const map = asMap(mapHandleRef.current);
+    if (!map) return;
+    cleanedBasemapRef.current = true;
+    try {
+      const style = (map as unknown as { getStyle(): { layers?: { id: string }[] } }).getStyle();
+      if (style?.layers) {
+        for (const layer of style.layers) {
+          const id = layer.id.toLowerCase();
+          if (id.includes("boundary") || id.includes("admin") ||
+              (id.includes("place") && !id.includes("place-city") && !id.includes("place-town"))) {
+            map.setLayoutProperty(layer.id, "visibility", "none");
+          }
+        }
+      }
+    } catch { /* noop */ }
+    const uatLayers = [
+      "l-uats-z0-line", "l-uats-z5-fill", "l-uats-z5-line",
+      "l-uats-z8-fill", "l-uats-z8-line", "l-uats-z8-label",
+      "l-uats-z12-fill", "l-uats-z12-line", "l-uats-z12-label",
+    ];
+    for (const lid of uatLayers) {
+      try { if (map.getLayer(lid)) map.setLayoutProperty(lid, "visibility", "none"); } catch { /* noop */ }
+    }
+  }, [mapReady]);
+
   // When map becomes ready, fitBounds ONCE per siruta
   useEffect(() => {
     if (!mapReady || !boundsRef.current || !selectedSiruta) return;
diff --git a/src/modules/parcel-sync/components/tabs/map-tab.tsx b/src/modules/parcel-sync/components/tabs/map-tab.tsx
index 1656f1d..e378190 100644
--- a/src/modules/parcel-sync/components/tabs/map-tab.tsx
+++ b/src/modules/parcel-sync/components/tabs/map-tab.tsx
@@ -150,6 +150,48 @@ export function MapTab({ siruta, sirutaValid, sessionConnected, syncLocalCount,
     return () => clearInterval(check);
   }, [sirutaValid, mapReady]);
 
+  /* ── Hide basemap admin boundaries + our UAT layers (we use siruta filter) */
+  const cleanedBasemapRef = useRef(false);
+  useEffect(() => {
+    if (!mapReady) {
+      cleanedBasemapRef.current = false;
+      return;
+    }
+    if (cleanedBasemapRef.current) return;
+    const map = asMap(mapHandleRef.current);
+    if (!map) return;
+    cleanedBasemapRef.current = true;
+
+    // Hide OpenFreeMap admin boundary and place layers (redundant — we have our own UATs)
+    try {
+      const style = (map as unknown as { getStyle(): { layers?: { id: string }[] } }).getStyle();
+      if (style?.layers) {
+        for (const layer of style.layers) {
+          const id = layer.id.toLowerCase();
+          if (
+            id.includes("boundary") ||
+            id.includes("admin") ||
+            (id.includes("place") && !id.includes("place-city") && !id.includes("place-town"))
+          ) {
+            map.setLayoutProperty(layer.id, "visibility", "none");
+          }
+        }
+      }
+    } catch {
+      /* noop */
+    }
+
+    // Hide our Martin UAT layers (not needed when filtering by siruta)
+    const uatLayers = [
+      "l-uats-z0-line", "l-uats-z5-fill", "l-uats-z5-line",
+      "l-uats-z8-fill", "l-uats-z8-line", "l-uats-z8-label",
+      "l-uats-z12-fill", "l-uats-z12-line", "l-uats-z12-label",
+    ];
+    for (const lid of uatLayers) {
+      try { if (map.getLayer(lid)) map.setLayoutProperty(lid, "visibility", "none"); } catch { /* noop */ }
+    }
+  }, [mapReady]);
+
   /* ── Fetch UAT bounds ──────────────────────────────────────── */
   const prevBoundsSirutaRef = useRef("");
   useEffect(() => {