diff --git a/.github/workflows/_deploy_lambda.yml b/.github/workflows/_deploy_lambda.yml
index ce1a0e77..103dee82 100644
--- a/.github/workflows/_deploy_lambda.yml
+++ b/.github/workflows/_deploy_lambda.yml
@@ -58,6 +58,8 @@ on:
         required: false
       TF_VAR_google_solar_api_key:
         required: false
+      TF_VAR_ORDNANCE_SURVEY_API_KEY:
+        required: false
 
 jobs:
   deploy:
@@ -115,6 +117,7 @@ jobs:
           TF_VAR_domain_name: ${{ secrets.TF_VAR_domain_name }}
           TF_VAR_epc_auth_token: ${{ secrets.TF_VAR_epc_auth_token }}
           TF_VAR_google_solar_api_key: ${{ secrets.TF_VAR_google_solar_api_key }}
+          TF_VAR_ORDNANCE_SURVEY_API_KEY: ${{ secrets.ORDNANCE_SURVEY_API_KEY}}
         run: |
           terraform plan \
             -var="stage=${{ inputs.stage }}" \
@@ -140,6 +143,7 @@ jobs:
           TF_VAR_domain_name: ${{ secrets.TF_VAR_domain_name }}
           TF_VAR_epc_auth_token: ${{ secrets.TF_VAR_epc_auth_token }}
           TF_VAR_google_solar_api_key: ${{ secrets.TF_VAR_google_solar_api_key }}
+          TF_VAR_ORDNANCE_SURVEY_API_KEY: ${{ secrets.ORDNANCE_SURVEY_API_KEY}}
         run: |
           terraform destroy -auto-approve \
             -var="stage=${{ inputs.stage }}" \
diff --git a/.github/workflows/deploy_terraform.yml b/.github/workflows/deploy_terraform.yml
index bde7eb21..6633eefd 100644
--- a/.github/workflows/deploy_terraform.yml
+++ b/.github/workflows/deploy_terraform.yml
@@ -320,3 +320,4 @@ jobs:
       AWS_ACCESS_KEY_ID: ${{ secrets.DEV_AWS_ACCESS_KEY_ID }}
       AWS_SECRET_ACCESS_KEY: ${{ secrets.DEV_AWS_SECRET_ACCESS_KEY }}
       AWS_REGION: ${{ secrets.DEV_AWS_REGION }}
+      TF_VAR_ORDNANCE_SURVEY_API_KEY: ${{ secrets.ORDNANCE_SURVEY_API_KEY }}
diff --git a/infrastructure/terraform/lambda/ordnanceSurvey/main.tf b/infrastructure/terraform/lambda/ordnanceSurvey/main.tf
index a62996a1..7e045621 100644
--- a/infrastructure/terraform/lambda/ordnanceSurvey/main.tf
+++ b/infrastructure/terraform/lambda/ordnanceSurvey/main.tf
@@ -33,7 +33,7 @@ module "ordnance" {
       DB_USERNAME = local.db_credentials.db_assessment_model_username
       DB_PASSWORD = local.db_credentials.db_assessment_model_password
       S3_BUCKET_NAME = data.terraform_remote_state.shared.outputs.retrofit_sap_data_bucket_name
-      ORDNANCE_SURVEY_API_KEY:= "Reminder to add This somehow, ask if we are doing aws secret method or github secret method"
+      ORDNANCE_SURVEY_API_KEY = var.ordnance_survey_api_key
     },
   )
 }
diff --git a/infrastructure/terraform/lambda/ordnanceSurvey/variables.tf b/infrastructure/terraform/lambda/ordnanceSurvey/variables.tf
index e7646811..936aebc9 100644
--- a/infrastructure/terraform/lambda/ordnanceSurvey/variables.tf
+++ b/infrastructure/terraform/lambda/ordnanceSurvey/variables.tf
@@ -28,6 +28,12 @@ variable "batch_size" {
   default = 1
 }
 
+variable "ordnance_survey_api_key" {
+  type      = string
+  sensitive = true
+}
+
+
 locals {
   image_uri = "${var.ecr_repo_url}@${var.image_digest}"
 }