diff --git a/github/github-accessors.go b/github/github-accessors.go
index 01f36e3418d..4ac72f5319b 100644
--- a/github/github-accessors.go
+++ b/github/github-accessors.go
@@ -7102,14 +7102,6 @@ func (c *CustomPatternBackfillScan) GetPatternSlug() string {
 	return *c.PatternSlug
 }
 
-// GetDefaultValue returns the DefaultValue field if it's non-nil, zero value otherwise.
-func (c *CustomProperty) GetDefaultValue() string {
-	if c == nil || c.DefaultValue == nil {
-		return ""
-	}
-	return *c.DefaultValue
-}
-
 // GetDescription returns the Description field if it's non-nil, zero value otherwise.
 func (c *CustomProperty) GetDescription() string {
 	if c == nil || c.Description == nil {
diff --git a/github/github-accessors_test.go b/github/github-accessors_test.go
index 0b10ee00c8a..c79b58d99e7 100644
--- a/github/github-accessors_test.go
+++ b/github/github-accessors_test.go
@@ -9290,17 +9290,6 @@ func TestCustomPatternBackfillScan_GetPatternSlug(tt *testing.T) {
 	c.GetPatternSlug()
 }
 
-func TestCustomProperty_GetDefaultValue(tt *testing.T) {
-	tt.Parallel()
-	var zeroValue string
-	c := &CustomProperty{DefaultValue: &zeroValue}
-	c.GetDefaultValue()
-	c = &CustomProperty{}
-	c.GetDefaultValue()
-	c = nil
-	c.GetDefaultValue()
-}
-
 func TestCustomProperty_GetDescription(tt *testing.T) {
 	tt.Parallel()
 	var zeroValue string
diff --git a/github/orgs_properties.go b/github/orgs_properties.go
index 502713b8bac..d104390581b 100644
--- a/github/orgs_properties.go
+++ b/github/orgs_properties.go
@@ -10,15 +10,19 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"strconv"
 )
 
+// PropertyValueType represents the type of a custom property value.
+type PropertyValueType string
+
 // Valid values for CustomProperty.ValueType.
 const (
-	PropertyValueTypeString       = "string"
-	PropertyValueTypeSingleSelect = "single_select"
-	PropertyValueTypeMultiSelect  = "multi_select"
-	PropertyValueTypeTrueFalse    = "true_false"
-	PropertyValueTypeURL          = "url"
+	PropertyValueTypeString       PropertyValueType = "string"
+	PropertyValueTypeSingleSelect PropertyValueType = "single_select"
+	PropertyValueTypeMultiSelect  PropertyValueType = "multi_select"
+	PropertyValueTypeTrueFalse    PropertyValueType = "true_false"
+	PropertyValueTypeURL          PropertyValueType = "url"
 )
 
 // CustomProperty represents an organization custom property object.
@@ -31,11 +35,11 @@ type CustomProperty struct {
 	// SourceType is the source type of the property where it has been created. Can be one of: organization, enterprise.
 	SourceType *string `json:"source_type,omitempty"`
 	// The type of the value for the property. Can be one of: string, single_select, multi_select, true_false, url.
-	ValueType string `json:"value_type"`
+	ValueType PropertyValueType `json:"value_type"`
 	// Whether the property is required.
 	Required *bool `json:"required,omitempty"`
 	// Default value of the property.
-	DefaultValue *string `json:"default_value,omitempty"`
+	DefaultValue any `json:"default_value,omitempty"`
 	// Short description of the property.
 	Description *string `json:"description,omitempty"`
 	// An ordered list of the allowed values of the property. The property can have up to 200
@@ -45,6 +49,42 @@ type CustomProperty struct {
 	ValuesEditableBy *string `json:"values_editable_by,omitempty"`
 }
 
+// DefaultValueString returns the DefaultValue as a string if the ValueType is string or single_select or url.
+func (cp CustomProperty) DefaultValueString() (string, bool) {
+	switch cp.ValueType {
+	case PropertyValueTypeString, PropertyValueTypeSingleSelect, PropertyValueTypeURL:
+		s, ok := cp.DefaultValue.(string)
+		return s, ok
+	default:
+		return "", false
+	}
+}
+
+// DefaultValueStrings returns the DefaultValue as a slice of string if the ValueType is string or multi_select.
+func (cp CustomProperty) DefaultValueStrings() ([]string, bool) {
+	switch cp.ValueType {
+	case PropertyValueTypeMultiSelect:
+		s, ok := cp.DefaultValue.([]string)
+		return s, ok
+	default:
+		return nil, false
+	}
+}
+
+// DefaultValueBool returns the DefaultValue as a string if the ValueType is string or true_false.
+func (cp CustomProperty) DefaultValueBool() (bool, bool) {
+	switch cp.ValueType {
+	case PropertyValueTypeTrueFalse:
+		if s, ok := cp.DefaultValue.(string); ok {
+			b, err := strconv.ParseBool(s)
+			return b, err == nil
+		}
+		return false, false
+	default:
+		return false, false
+	}
+}
+
 // RepoCustomPropertyValue represents a repository custom property value.
 type RepoCustomPropertyValue struct {
 	RepositoryID       int64                  `json:"repository_id"`