diff --git a/.changeset/thirty-mails-live.md b/.changeset/thirty-mails-live.md
new file mode 100644
index 0000000000..abffce371e
--- /dev/null
+++ b/.changeset/thirty-mails-live.md
@@ -0,0 +1,5 @@
+---
+"@effect/schema": patch
+---
+
+add missing `makePropertySignature` constructor
diff --git a/packages/schema/src/Schema.ts b/packages/schema/src/Schema.ts
index 0fda2a1728..af83db2ffc 100644
--- a/packages/schema/src/Schema.ts
+++ b/packages/schema/src/Schema.ts
@@ -1511,8 +1511,7 @@ export interface PropertySignature<
   ): PropertySignature<TypeToken, Type, Key, EncodedToken, Encoded, HasDefault, R>
 }
 
-/** @internal */
-export class PropertySignatureImpl<
+class PropertySignatureImpl<
   TypeToken extends PropertySignature.Token,
   Type,
   Key extends PropertyKey,
@@ -1539,7 +1538,7 @@ export class PropertySignatureImpl<
   annotations(
     annotations: PropertySignature.Annotations<Type>
   ): PropertySignature<TypeToken, Type, Key, EncodedToken, Encoded, HasDefault, R> {
-    return new PropertySignatureImpl(propertySignatureAnnotations_(this.ast, toASTAnnotations(annotations)))
+    return makePropertySignature(propertySignatureAnnotations_(this.ast, toASTAnnotations(annotations)))
   }
 
   toString() {
@@ -1547,6 +1546,21 @@ export class PropertySignatureImpl<
   }
 }
 
+/**
+ * @category PropertySignature
+ * @since 1.0.0
+ */
+export const makePropertySignature = <
+  TypeToken extends PropertySignature.Token,
+  Type,
+  Key extends PropertyKey,
+  EncodedToken extends PropertySignature.Token,
+  Encoded,
+  HasDefault extends boolean = false,
+  R = never
+>(ast: PropertySignature.AST) =>
+  new PropertySignatureImpl<TypeToken, Type, Key, EncodedToken, Encoded, HasDefault, R>(ast)
+
 /**
  * Lifts a `Schema` into a `PropertySignature`.
  *
@@ -1556,7 +1570,7 @@ export class PropertySignatureImpl<
 export const propertySignature = <A, I, R>(
   self: Schema<A, I, R>
 ): PropertySignature<PropertySignature.GetToken<false>, A, never, PropertySignature.GetToken<false>, I, false, R> =>
-  new PropertySignatureImpl(new PropertySignatureDeclaration(self.ast, false, true, {}, undefined))
+  makePropertySignature(new PropertySignatureDeclaration(self.ast, false, true, {}, undefined))
 
 /**
  * Enhances a property signature with a default constructor value.
@@ -1599,11 +1613,11 @@ export const withConstructorDefault: {
   const ast = self.ast
   switch (ast._tag) {
     case "PropertySignatureDeclaration":
-      return new PropertySignatureImpl(
+      return makePropertySignature(
         new PropertySignatureDeclaration(ast.type, ast.isOptional, ast.isReadonly, ast.annotations, defaultValue)
       )
     case "PropertySignatureTransformation":
-      return new PropertySignatureImpl(
+      return makePropertySignature(
         new PropertySignatureTransformation(
           ast.from,
           new ToPropertySignature(ast.to.type, ast.to.isOptional, ast.to.isReadonly, ast.to.annotations, defaultValue),
@@ -1657,7 +1671,7 @@ export const withDecodingDefault: {
   const ast = self.ast
   switch (ast._tag) {
     case "PropertySignatureDeclaration":
-      return new PropertySignatureImpl(
+      return makePropertySignature(
         new PropertySignatureTransformation(
           ast,
           new ToPropertySignature(AST.typeAST(ast.type), false, true, {}, undefined),
@@ -1666,7 +1680,7 @@ export const withDecodingDefault: {
         )
       )
     case "PropertySignatureTransformation":
-      return new PropertySignatureImpl(
+      return makePropertySignature(
         new PropertySignatureTransformation(
           ast.from,
           new ToPropertySignature(ast.to.type, false, ast.to.isReadonly, ast.to.annotations, ast.to.defaultValue),
@@ -1764,7 +1778,7 @@ export const fromKey: {
   const ast = self.ast
   switch (ast._tag) {
     case "PropertySignatureDeclaration": {
-      return new PropertySignatureImpl(
+      return makePropertySignature(
         new PropertySignatureTransformation(
           new FromPropertySignature(
             ast.type,
@@ -1780,7 +1794,7 @@ export const fromKey: {
       )
     }
     case "PropertySignatureTransformation":
-      return new PropertySignatureImpl(
+      return makePropertySignature(
         new PropertySignatureTransformation(
           new FromPropertySignature(
             ast.from.type,
@@ -1814,7 +1828,7 @@ export const optionalToRequired = <FA, FI, FR, TA, TI, TR>(
     readonly encode: (ti: TI) => option_.Option<FA>
   }
 ): PropertySignature<":", TA, never, "?:", FI, false, FR | TR> =>
-  new PropertySignatureImpl(
+  makePropertySignature(
     new PropertySignatureTransformation(
       new FromPropertySignature(from.ast, true, true, {}, undefined),
       new ToPropertySignature(to.ast, false, true, {}, undefined),
@@ -1844,7 +1858,7 @@ export const optionalToOptional = <FA, FI, FR, TA, TI, TR>(
     readonly encode: (o: option_.Option<TI>) => option_.Option<FA>
   }
 ): PropertySignature<"?:", TA, never, "?:", FI, false, FR | TR> =>
-  new PropertySignatureImpl(
+  makePropertySignature(
     new PropertySignatureTransformation(
       new FromPropertySignature(from.ast, true, true, {}, undefined),
       new ToPropertySignature(to.ast, true, true, {}, undefined),
@@ -2004,7 +2018,7 @@ export const optional: {
           { decode: option_.filter(Predicate.isNotNull<A | null>), encode: identity }
         )
       } else {
-        return new PropertySignatureImpl(new PropertySignatureDeclaration(schema.ast, true, true, {}, undefined))
+        return makePropertySignature(new PropertySignatureDeclaration(schema.ast, true, true, {}, undefined))
       }
     }
   } else {
@@ -2062,7 +2076,7 @@ export const optional: {
           { decode: option_.filter(Predicate.isNotNull<A | null | undefined>), encode: identity }
         )
       } else {
-        return new PropertySignatureImpl(
+        return makePropertySignature(
           new PropertySignatureDeclaration(UndefinedOr(schema).ast, true, true, {}, undefined)
         )
       }
diff --git a/packages/schema/test/Schema/PropertySignature.test.ts b/packages/schema/test/Schema/PropertySignature.test.ts
index c303f48c53..3569c737d7 100644
--- a/packages/schema/test/Schema/PropertySignature.test.ts
+++ b/packages/schema/test/Schema/PropertySignature.test.ts
@@ -84,7 +84,7 @@ describe("PropertySignature", () => {
   })
 
   it("add a decoding default to an optional field", async () => {
-    const ps: S.PropertySignature<":", number, never, "?:", string, never> = new S.PropertySignatureImpl(
+    const ps: S.PropertySignature<":", number, never, "?:", string, never> = S.makePropertySignature(
       new S.PropertySignatureTransformation(
         new S.FromPropertySignature(S.NumberFromString.ast, true, true, {}, undefined),
         new S.ToPropertySignature(S.Number.ast, false, true, {}, undefined),
@@ -113,7 +113,7 @@ describe("PropertySignature", () => {
   })
 
   it("add a bidirectional (decoding/encoding) default to an optional field", async () => {
-    const ps: S.PropertySignature<":", number, never, "?:", string, never> = new S.PropertySignatureImpl(
+    const ps: S.PropertySignature<":", number, never, "?:", string, never> = S.makePropertySignature(
       new S.PropertySignatureTransformation(
         new S.FromPropertySignature(S.NumberFromString.ast, true, true, {}, undefined),
         new S.ToPropertySignature(S.Number.ast, false, true, {}, undefined),
@@ -142,7 +142,7 @@ describe("PropertySignature", () => {
   })
 
   it("empty string as optional", async () => {
-    const ps: S.PropertySignature<"?:", string, never, ":", string, never> = new S.PropertySignatureImpl(
+    const ps: S.PropertySignature<"?:", string, never, ":", string, never> = S.makePropertySignature(
       new S.PropertySignatureTransformation(
         new S.FromPropertySignature(S.String.ast, false, true, {}, undefined),
         new S.ToPropertySignature(S.String.ast, true, true, {}, undefined),
@@ -159,7 +159,7 @@ describe("PropertySignature", () => {
   })
 
   it("encoding default", async () => {
-    const ps: S.PropertySignature<"?:", number, never, ":", number, never> = new S.PropertySignatureImpl(
+    const ps: S.PropertySignature<"?:", number, never, ":", number, never> = S.makePropertySignature(
       new S.PropertySignatureTransformation(
         new S.FromPropertySignature(S.Number.ast, false, true, {}, undefined),
         new S.ToPropertySignature(S.Number.ast, true, true, {}, undefined),