diff --git a/src/transformation/visitors/class/index.ts b/src/transformation/visitors/class/index.ts
index e19e2ccc5..fe831045c 100644
--- a/src/transformation/visitors/class/index.ts
+++ b/src/transformation/visitors/class/index.ts
@@ -186,6 +186,15 @@ function transformClassLikeDeclaration(
                     lua.createExpressionStatement(createClassPropertyDecoratingExpression(context, member, className))
                 );
             }
+        } else if (ts.isClassStaticBlockDeclaration(member)) {
+            if (member.body.statements.length > 0) {
+                const bodyStatements = context.transformStatements(member.body.statements);
+                const iif = lua.createFunctionExpression(lua.createBlock(bodyStatements), [
+                    lua.createIdentifier("self"),
+                ]);
+                const iife = lua.createCallExpression(iif, [className]);
+                result.push(lua.createExpressionStatement(iife, member));
+            }
         }
     }
 
diff --git a/test/unit/classes/classes.spec.ts b/test/unit/classes/classes.spec.ts
index 2e447ab54..a2079d360 100644
--- a/test/unit/classes/classes.spec.ts
+++ b/test/unit/classes/classes.spec.ts
@@ -799,3 +799,22 @@ test.each(['(this["bar"])', '((((this["bar"]))))'])("methods in parentheses pass
         export const result = inst.foo();
     `.expectToMatchJsResult();
 });
+
+// https://github.com/TypeScriptToLua/TypeScriptToLua/issues/1447
+test("static initialization block (#1447)", () => {
+    util.testModule`
+        class A {
+            private static staticProperty1 = 3;
+            public static staticProperty2;
+            static {
+                this.staticProperty2 = this.staticProperty1 + 5;
+            }
+            public static staticProperty3;
+            static {
+                this.staticProperty3 = this.staticProperty1 + this.staticProperty2;
+            }
+        }
+        export const result1 = A.staticProperty2;
+        export const result2 = A.staticProperty3;
+    `.expectToMatchJsResult();
+});