diff --git a/src/app/api/eterra/debug-tile-props/route.ts b/src/app/api/eterra/debug-tile-props/route.ts
new file mode 100644
index 0000000..48beaa8
--- /dev/null
+++ b/src/app/api/eterra/debug-tile-props/route.ts
@@ -0,0 +1,72 @@
+import { NextResponse } from "next/server";
+import { PrismaClient } from "@prisma/client";
+
+const prisma = new PrismaClient();
+
+/**
+ * GET /api/eterra/debug-tile-props?siruta=161829
+ *
+ * Shows what columns the gis_cladiri view exposes (Martin tile properties).
+ * Also shows a sample building's raw DB data for comparison.
+ */
+export async function GET(request: Request) {
+  const url = new URL(request.url);
+  const siruta = url.searchParams.get("siruta") ?? "161829";
+
+  // Sample building from DB
+  const sample = await prisma.gisFeature.findFirst({
+    where: { layerId: "CLADIRI_ACTIVE", siruta },
+  });
+
+  // Check what the gis_features view would expose
+  let viewColumns: string[] = [];
+  try {
+    const cols = await prisma.$queryRaw<{ column_name: string }[]>`
+      SELECT column_name
+      FROM information_schema.columns
+      WHERE table_name = 'GisFeature'
+      ORDER BY ordinal_position
+    `;
+    viewColumns = cols.map((c) => c.column_name);
+  } catch {
+    viewColumns = ["query failed"];
+  }
+
+  // Check gis_cladiri view columns
+  let viewCladiriColumns: string[] = [];
+  try {
+    const cols = await prisma.$queryRaw<{ column_name: string }[]>`
+      SELECT column_name
+      FROM information_schema.columns
+      WHERE table_name = 'gis_cladiri'
+      ORDER BY ordinal_position
+    `;
+    viewCladiriColumns = cols.map((c) => c.column_name);
+  } catch (e) {
+    viewCladiriColumns = [
+      `query failed: ${e instanceof Error ? e.message : String(e)}`,
+    ];
+  }
+
+  return NextResponse.json({
+    gisFeature_columns: viewColumns,
+    gis_cladiri_view_columns: viewCladiriColumns,
+    sample_building: sample
+      ? {
+          id: sample.id,
+          layerId: sample.layerId,
+          siruta: sample.siruta,
+          objectId: sample.objectId,
+          cadastralRef: sample.cadastralRef,
+          areaValue: sample.areaValue,
+          isActive: sample.isActive,
+          attributes_keys: Object.keys(
+            sample.attributes as Record<string, unknown>,
+          ),
+          has_geom: sample.geometry != null,
+          enrichment: sample.enrichment,
+        }
+      : null,
+    note: "Martin tiles gis_cladiri expune coloanele din view-ul gis_cladiri. cadastral_ref trebuie sa fie prezent.",
+  });
+}