diff --git a/pkg/engine/testdata/vpc_import.err.json b/pkg/engine/testdata/vpc_import.err.json
index e75b59039..1c8224cbe 100644
--- a/pkg/engine/testdata/vpc_import.err.json
+++ b/pkg/engine/testdata/vpc_import.err.json
@@ -58,5 +58,65 @@
     "resource": "aws:vpc:vpc",
     "validation_error": "required property CidrBlock is not set on resource aws:vpc:vpc",
     "value": null
+  },
+  {
+    "error": {
+      "chain": [
+        "required property Id is not set on resource aws:subnet:vpc:subnet1"
+      ]
+    },
+    "error_code": "config_invalid",
+    "property": "Id",
+    "resource": "aws:subnet:vpc:subnet1",
+    "validation_error": "required property Id is not set on resource aws:subnet:vpc:subnet1",
+    "value": null
+  },
+  {
+    "error": {
+      "chain": [
+        "required property Id is not set on resource aws:subnet:vpc:subnet2"
+      ]
+    },
+    "error_code": "config_invalid",
+    "property": "Id",
+    "resource": "aws:subnet:vpc:subnet2",
+    "validation_error": "required property Id is not set on resource aws:subnet:vpc:subnet2",
+    "value": null
+  },
+  {
+    "error": {
+      "chain": [
+        "required property Id is not set on resource aws:subnet:vpc:subnet3"
+      ]
+    },
+    "error_code": "config_invalid",
+    "property": "Id",
+    "resource": "aws:subnet:vpc:subnet3",
+    "validation_error": "required property Id is not set on resource aws:subnet:vpc:subnet3",
+    "value": null
+  },
+  {
+    "error": {
+      "chain": [
+        "required property Id is not set on resource aws:subnet:vpc:subnet4"
+      ]
+    },
+    "error_code": "config_invalid",
+    "property": "Id",
+    "resource": "aws:subnet:vpc:subnet4",
+    "validation_error": "required property Id is not set on resource aws:subnet:vpc:subnet4",
+    "value": null
+  },
+  {
+    "error": {
+      "chain": [
+        "required property Arn is not set on resource aws:vpc:vpc"
+      ]
+    },
+    "error_code": "config_invalid",
+    "property": "Arn",
+    "resource": "aws:vpc:vpc",
+    "validation_error": "required property Arn is not set on resource aws:vpc:vpc",
+    "value": null
   }
 ]
diff --git a/pkg/engine/testdata/vpc_import_to_lambda.err.json b/pkg/engine/testdata/vpc_import_to_lambda.err.json
index 491168437..9f82940de 100644
--- a/pkg/engine/testdata/vpc_import_to_lambda.err.json
+++ b/pkg/engine/testdata/vpc_import_to_lambda.err.json
@@ -70,5 +70,65 @@
     "resource": "aws:ecr_image:lambda_function-image",
     "validation_error": "required property BaseImage is not set on resource aws:ecr_image:lambda_function-image",
     "value": null
+  },
+  {
+    "error": {
+      "chain": [
+        "required property Id is not set on resource aws:subnet:subnet3"
+      ]
+    },
+    "error_code": "config_invalid",
+    "property": "Id",
+    "resource": "aws:subnet:subnet3",
+    "validation_error": "required property Id is not set on resource aws:subnet:subnet3",
+    "value": null
+  },
+  {
+    "error": {
+      "chain": [
+        "required property Id is not set on resource aws:subnet:subnet4"
+      ]
+    },
+    "error_code": "config_invalid",
+    "property": "Id",
+    "resource": "aws:subnet:subnet4",
+    "validation_error": "required property Id is not set on resource aws:subnet:subnet4",
+    "value": null
+  },
+  {
+    "error": {
+      "chain": [
+        "required property Id is not set on resource aws:subnet:vpc:subnet1"
+      ]
+    },
+    "error_code": "config_invalid",
+    "property": "Id",
+    "resource": "aws:subnet:vpc:subnet1",
+    "validation_error": "required property Id is not set on resource aws:subnet:vpc:subnet1",
+    "value": null
+  },
+  {
+    "error": {
+      "chain": [
+        "required property Id is not set on resource aws:subnet:vpc:subnet2"
+      ]
+    },
+    "error_code": "config_invalid",
+    "property": "Id",
+    "resource": "aws:subnet:vpc:subnet2",
+    "validation_error": "required property Id is not set on resource aws:subnet:vpc:subnet2",
+    "value": null
+  },
+  {
+    "error": {
+      "chain": [
+        "required property Arn is not set on resource aws:vpc:vpc"
+      ]
+    },
+    "error_code": "config_invalid",
+    "property": "Arn",
+    "resource": "aws:vpc:vpc",
+    "validation_error": "required property Arn is not set on resource aws:vpc:vpc",
+    "value": null
   }
 ]
diff --git a/pkg/engine/testdata/vpc_import_wo_subnets_to_lambda.err.json b/pkg/engine/testdata/vpc_import_wo_subnets_to_lambda.err.json
index 07f50b172..aadfed9e1 100644
--- a/pkg/engine/testdata/vpc_import_wo_subnets_to_lambda.err.json
+++ b/pkg/engine/testdata/vpc_import_wo_subnets_to_lambda.err.json
@@ -22,5 +22,17 @@
     "resource": "aws:ecr_image:lambda_function-image",
     "validation_error": "required property BaseImage is not set on resource aws:ecr_image:lambda_function-image",
     "value": null
+  },
+  {
+    "error": {
+      "chain": [
+        "required property Arn is not set on resource aws:vpc:vpc"
+      ]
+    },
+    "error_code": "config_invalid",
+    "property": "Arn",
+    "resource": "aws:vpc:vpc",
+    "validation_error": "required property Arn is not set on resource aws:vpc:vpc",
+    "value": null
   }
 ]
diff --git a/pkg/knowledgebase/properties/any_property.go b/pkg/knowledgebase/properties/any_property.go
index 88035c267..255efc347 100644
--- a/pkg/knowledgebase/properties/any_property.go
+++ b/pkg/knowledgebase/properties/any_property.go
@@ -110,7 +110,7 @@ func (a *AnyProperty) Type() string {
 }
 
 func (a *AnyProperty) Validate(resource *construct.Resource, value any, ctx knowledgebase.DynamicContext) error {
-	if a.DeployTime && value == nil {
+	if a.DeployTime && value == nil && !resource.Imported {
 		return nil
 	}
 	if a.Required && value == nil {
diff --git a/pkg/knowledgebase/properties/bool_property.go b/pkg/knowledgebase/properties/bool_property.go
index c1ea013c8..ddd1a28f8 100644
--- a/pkg/knowledgebase/properties/bool_property.go
+++ b/pkg/knowledgebase/properties/bool_property.go
@@ -84,7 +84,7 @@ func (b *BoolProperty) Type() string {
 }
 
 func (b *BoolProperty) Validate(resource *construct.Resource, value any, ctx knowledgebase.DynamicContext) error {
-	if b.DeployTime && value == nil {
+	if b.DeployTime && value == nil && !resource.Imported {
 		return nil
 	}
 	if value == nil {
diff --git a/pkg/knowledgebase/properties/float_property.go b/pkg/knowledgebase/properties/float_property.go
index 05013e14f..8787516af 100644
--- a/pkg/knowledgebase/properties/float_property.go
+++ b/pkg/knowledgebase/properties/float_property.go
@@ -92,7 +92,7 @@ func (f *FloatProperty) Type() string {
 }
 
 func (f *FloatProperty) Validate(resource *construct.Resource, value any, ctx knowledgebase.DynamicContext) error {
-	if f.DeployTime && value == nil {
+	if f.DeployTime && value == nil && !resource.Imported {
 		return nil
 	}
 	if value == nil {
diff --git a/pkg/knowledgebase/properties/int_property.go b/pkg/knowledgebase/properties/int_property.go
index f4cc27181..dea5e6366 100644
--- a/pkg/knowledgebase/properties/int_property.go
+++ b/pkg/knowledgebase/properties/int_property.go
@@ -102,7 +102,7 @@ func (i *IntProperty) Type() string {
 }
 
 func (i *IntProperty) Validate(resource *construct.Resource, value any, ctx knowledgebase.DynamicContext) error {
-	if i.DeployTime && value == nil {
+	if i.DeployTime && value == nil && !resource.Imported {
 		return nil
 	}
 	if value == nil {
diff --git a/pkg/knowledgebase/properties/list_property.go b/pkg/knowledgebase/properties/list_property.go
index 0dea20bfc..d6bade667 100644
--- a/pkg/knowledgebase/properties/list_property.go
+++ b/pkg/knowledgebase/properties/list_property.go
@@ -168,7 +168,7 @@ func (l *ListProperty) Type() string {
 }
 
 func (l *ListProperty) Validate(resource *construct.Resource, value any, ctx knowledgebase.DynamicContext) error {
-	if l.DeployTime && value == nil {
+	if l.DeployTime && value == nil && !resource.Imported {
 		return nil
 	}
 	if value == nil {
diff --git a/pkg/knowledgebase/properties/map_property.go b/pkg/knowledgebase/properties/map_property.go
index 9f848e8bc..a8200b182 100644
--- a/pkg/knowledgebase/properties/map_property.go
+++ b/pkg/knowledgebase/properties/map_property.go
@@ -190,7 +190,7 @@ func (m *MapProperty) Type() string {
 }
 
 func (m *MapProperty) Validate(resource *construct.Resource, value any, ctx knowledgebase.DynamicContext) error {
-	if m.DeployTime && value == nil {
+	if m.DeployTime && value == nil && !resource.Imported {
 		return nil
 	}
 	if value == nil {
diff --git a/pkg/knowledgebase/properties/resource_property.go b/pkg/knowledgebase/properties/resource_property.go
index 48b592d8b..7da21ecc1 100644
--- a/pkg/knowledgebase/properties/resource_property.go
+++ b/pkg/knowledgebase/properties/resource_property.go
@@ -131,7 +131,7 @@ func (r *ResourceProperty) Type() string {
 }
 
 func (r *ResourceProperty) Validate(resource *construct.Resource, value any, ctx knowledgebase.DynamicContext) error {
-	if r.DeployTime && value == nil {
+	if r.DeployTime && value == nil && !resource.Imported {
 		return nil
 	}
 	if value == nil {
diff --git a/pkg/knowledgebase/properties/set_property.go b/pkg/knowledgebase/properties/set_property.go
index 73db37b46..f174a46e5 100644
--- a/pkg/knowledgebase/properties/set_property.go
+++ b/pkg/knowledgebase/properties/set_property.go
@@ -160,7 +160,7 @@ func (s *SetProperty) Type() string {
 }
 
 func (s *SetProperty) Validate(resource *construct.Resource, value any, ctx knowledgebase.DynamicContext) error {
-	if s.DeployTime && value == nil {
+	if s.DeployTime && value == nil && !resource.Imported {
 		return nil
 	}
 	if value == nil {
diff --git a/pkg/knowledgebase/properties/string_property.go b/pkg/knowledgebase/properties/string_property.go
index ec9399e26..b8bfcac19 100644
--- a/pkg/knowledgebase/properties/string_property.go
+++ b/pkg/knowledgebase/properties/string_property.go
@@ -93,7 +93,7 @@ func (s *StringProperty) Type() string {
 }
 
 func (s *StringProperty) Validate(resource *construct.Resource, value any, ctx knowledgebase.DynamicContext) error {
-	if s.DeployTime && value == nil {
+	if s.DeployTime && value == nil && !resource.Imported {
 		return nil
 	}
 	if value == nil {