diff --git a/yarn-project/archiver/src/archiver/config.ts b/yarn-project/archiver/src/archiver/config.ts
index d739314d468..32efc706cf6 100644
--- a/yarn-project/archiver/src/archiver/config.ts
+++ b/yarn-project/archiver/src/archiver/config.ts
@@ -21,6 +21,9 @@ export type ArchiverConfig = {
   /** URL for an archiver service. If set, will return an archiver client as opposed to starting a new one. */
   archiverUrl?: string;
 
+  /** URL for an L1 consensus client */
+  l1ConsensusClientUrl: string;
+
   /** The polling interval in ms for retrieving new L2 blocks and encrypted logs. */
   archiverPollingIntervalMS?: number;
 
@@ -44,6 +47,11 @@ export const archiverConfigMappings: ConfigMappingsType<ArchiverConfig> = {
     description:
       'URL for an archiver service. If set, will return an archiver client as opposed to starting a new one.',
   },
+  l1ConsensusClientUrl: {
+    env: 'L1_CONSENSUS_CLIENT_URL',
+    description: 'URL for an L1 consensus client.',
+    parseEnv: (val: string) => (val ? val : 'http://localhost:5052'),
+  },
   archiverPollingIntervalMS: {
     env: 'ARCHIVER_POLLING_INTERVAL_MS',
     description: 'The polling interval in ms for retrieving new L2 blocks and encrypted logs.',
diff --git a/yarn-project/foundation/src/config/env_var.ts b/yarn-project/foundation/src/config/env_var.ts
index b1d0c8ce21f..6fe16439066 100644
--- a/yarn-project/foundation/src/config/env_var.ts
+++ b/yarn-project/foundation/src/config/env_var.ts
@@ -52,6 +52,7 @@ export type EnvVar =
   | 'GOVERNANCE_PROPOSER_PAYLOAD_ADDRESS'
   | 'INBOX_CONTRACT_ADDRESS'
   | 'L1_CHAIN_ID'
+  | 'L1_CONSENSUS_CLIENT_URL'
   | 'L1_PRIVATE_KEY'
   | 'L2_QUEUE_SIZE'
   | 'LOG_ELAPSED_TIME'