diff --git a/yarn-project/circuits.js/src/structs/contract_storage_read.test.ts b/yarn-project/circuits.js/src/structs/contract_storage_read.test.ts
new file mode 100644
index 00000000000..51264c92afd
--- /dev/null
+++ b/yarn-project/circuits.js/src/structs/contract_storage_read.test.ts
@@ -0,0 +1,21 @@
+import { makeContractStorageRead } from '../tests/factories.js';
+import { ContractStorageRead } from './contract_storage_read.js';
+
+describe('ContractStorageRead', () => {
+  it('serializes to buffer and deserializes it back', () => {
+    const randomInt = Math.floor(Math.random() * 1000);
+    const expected = makeContractStorageRead(randomInt);
+    const buffer = expected.toBuffer();
+    const res = ContractStorageRead.fromBuffer(buffer);
+    expect(res).toEqual(expected);
+  });
+
+  it('serializes to field array and deserializes it back', () => {
+    const randomInt = Math.floor(Math.random() * 1000);
+    const expected = makeContractStorageRead(randomInt);
+
+    const fieldArray = expected.toFields();
+    const res = ContractStorageRead.fromFields(fieldArray);
+    expect(res).toEqual(expected);
+  });
+});
diff --git a/yarn-project/circuits.js/src/structs/contract_storage_read.ts b/yarn-project/circuits.js/src/structs/contract_storage_read.ts
new file mode 100644
index 00000000000..907470b132d
--- /dev/null
+++ b/yarn-project/circuits.js/src/structs/contract_storage_read.ts
@@ -0,0 +1,77 @@
+import { Fr } from '@aztec/foundation/fields';
+import { BufferReader, FieldReader, serializeToBuffer } from '@aztec/foundation/serialize';
+
+/**
+ * Contract storage read operation on a specific contract.
+ *
+ * Note: Similar to `PublicDataRead` but it's from the POV of contract storage so we are not working with public data
+ * tree leaf index but storage slot index.
+ */
+export class ContractStorageRead {
+  constructor(
+    /**
+     * Storage slot we are reading from.
+     */
+    public readonly storageSlot: Fr,
+    /**
+     * Value read from the storage slot.
+     */
+    public readonly currentValue: Fr,
+    /**
+     * Optional side effect counter tracking position of this event in tx execution.
+     * Note: Not serialized
+     */
+    public readonly sideEffectCounter?: number,
+  ) {}
+
+  static from(args: {
+    /**
+     * Storage slot we are reading from.
+     */
+    storageSlot: Fr;
+    /**
+     * Value read from the storage slot.
+     */
+    currentValue: Fr;
+    /**
+     * Optional side effect counter tracking position of this event in tx execution.
+     */
+    sideEffectCounter?: number;
+  }) {
+    return new ContractStorageRead(args.storageSlot, args.currentValue, args.sideEffectCounter);
+  }
+
+  toBuffer() {
+    return serializeToBuffer(this.storageSlot, this.currentValue);
+  }
+
+  static fromBuffer(buffer: Buffer | BufferReader) {
+    const reader = BufferReader.asReader(buffer);
+    return new ContractStorageRead(Fr.fromBuffer(reader), Fr.fromBuffer(reader));
+  }
+
+  static empty() {
+    return new ContractStorageRead(Fr.ZERO, Fr.ZERO);
+  }
+
+  isEmpty() {
+    return this.storageSlot.isZero() && this.currentValue.isZero();
+  }
+
+  toFriendlyJSON() {
+    return `Slot=${this.storageSlot.toFriendlyJSON()}: ${this.currentValue.toFriendlyJSON()}`;
+  }
+
+  toFields(): Fr[] {
+    return [this.storageSlot, this.currentValue];
+  }
+
+  static fromFields(fields: Fr[] | FieldReader): ContractStorageRead {
+    const reader = FieldReader.asReader(fields);
+
+    const storageSlot = reader.readField();
+    const currentValue = reader.readField();
+
+    return new ContractStorageRead(storageSlot, currentValue);
+  }
+}
diff --git a/yarn-project/circuits.js/src/structs/contract_storage_update_request.test.ts b/yarn-project/circuits.js/src/structs/contract_storage_update_request.test.ts
new file mode 100644
index 00000000000..e38a0b031aa
--- /dev/null
+++ b/yarn-project/circuits.js/src/structs/contract_storage_update_request.test.ts
@@ -0,0 +1,21 @@
+import { makeContractStorageUpdateRequest } from '../tests/factories.js';
+import { ContractStorageUpdateRequest } from './contract_storage_update_request.js';
+
+describe('ContractStorageUpdateRequest', () => {
+  it('serializes to buffer and deserializes it back', () => {
+    const randomInt = Math.floor(Math.random() * 1000);
+    const expected = makeContractStorageUpdateRequest(randomInt);
+    const buffer = expected.toBuffer();
+    const res = ContractStorageUpdateRequest.fromBuffer(buffer);
+    expect(res).toEqual(expected);
+  });
+
+  it('serializes to field array and deserializes it back', () => {
+    const randomInt = Math.floor(Math.random() * 1000);
+    const expected = makeContractStorageUpdateRequest(randomInt);
+
+    const fieldArray = expected.toFields();
+    const res = ContractStorageUpdateRequest.fromFields(fieldArray);
+    expect(res).toEqual(expected);
+  });
+});
diff --git a/yarn-project/circuits.js/src/structs/contract_storage_update_request.ts b/yarn-project/circuits.js/src/structs/contract_storage_update_request.ts
new file mode 100644
index 00000000000..351ea091825
--- /dev/null
+++ b/yarn-project/circuits.js/src/structs/contract_storage_update_request.ts
@@ -0,0 +1,83 @@
+import { Fr } from '@aztec/foundation/fields';
+import { BufferReader, FieldReader, serializeToBuffer } from '@aztec/foundation/serialize';
+import { FieldsOf } from '@aztec/foundation/types';
+
+/**
+ * Contract storage update request for a slot on a specific contract.
+ *
+ * Note: Similar to `PublicDataUpdateRequest` but it's from the POV of contract storage so we are not working with
+ * public data tree leaf index but storage slot index.
+ */
+export class ContractStorageUpdateRequest {
+  constructor(
+    /**
+     * Storage slot we are updating.
+     */
+    public readonly storageSlot: Fr,
+    /**
+     * Old value of the storage slot.
+     */
+    public readonly oldValue: Fr,
+    /**
+     * New value of the storage slot.
+     */
+    public readonly newValue: Fr,
+    /**
+     * Optional side effect counter tracking position of this event in tx execution.
+     */
+    public readonly sideEffectCounter?: number,
+  ) {}
+
+  toBuffer() {
+    return serializeToBuffer(this.storageSlot, this.oldValue, this.newValue);
+  }
+
+  static fromBuffer(buffer: Buffer | BufferReader) {
+    const reader = BufferReader.asReader(buffer);
+    return new ContractStorageUpdateRequest(Fr.fromBuffer(reader), Fr.fromBuffer(reader), Fr.fromBuffer(reader));
+  }
+
+  /**
+   * Create PublicCallRequest from a fields dictionary.
+   * @param fields - The dictionary.
+   * @returns A PublicCallRequest object.
+   */
+  static from(fields: FieldsOf<ContractStorageUpdateRequest>): ContractStorageUpdateRequest {
+    return new ContractStorageUpdateRequest(...ContractStorageUpdateRequest.getFields(fields));
+  }
+
+  /**
+   * Serialize into a field array. Low-level utility.
+   * @param fields - Object with fields.
+   * @returns The array.
+   */
+  static getFields(fields: FieldsOf<ContractStorageUpdateRequest>) {
+    return [fields.storageSlot, fields.oldValue, fields.newValue, fields.sideEffectCounter] as const;
+  }
+
+  static empty() {
+    return new ContractStorageUpdateRequest(Fr.ZERO, Fr.ZERO, Fr.ZERO);
+  }
+
+  isEmpty() {
+    return this.storageSlot.isZero() && this.oldValue.isZero() && this.newValue.isZero();
+  }
+
+  toFriendlyJSON() {
+    return `Slot=${this.storageSlot.toFriendlyJSON()}: ${this.oldValue.toFriendlyJSON()} => ${this.newValue.toFriendlyJSON()}`;
+  }
+
+  toFields(): Fr[] {
+    return [this.storageSlot, this.oldValue, this.newValue];
+  }
+
+  static fromFields(fields: Fr[] | FieldReader): ContractStorageUpdateRequest {
+    const reader = FieldReader.asReader(fields);
+
+    const storageSlot = reader.readField();
+    const oldValue = reader.readField();
+    const newValue = reader.readField();
+
+    return new ContractStorageUpdateRequest(storageSlot, oldValue, newValue);
+  }
+}
diff --git a/yarn-project/circuits.js/src/structs/index.ts b/yarn-project/circuits.js/src/structs/index.ts
index 2218c043152..cb06d1b1412 100644
--- a/yarn-project/circuits.js/src/structs/index.ts
+++ b/yarn-project/circuits.js/src/structs/index.ts
@@ -5,6 +5,8 @@ export * from './call_request.js';
 export * from './call_stack_item.js';
 export * from './complete_address.js';
 export * from './contract_deployment_data.js';
+export * from './contract_storage_read.js';
+export * from './contract_storage_update_request.js';
 export * from './function_data.js';
 export * from './function_leaf_preimage.js';
 export * from './global_variables.js';
diff --git a/yarn-project/circuits.js/src/structs/public_circuit_public_inputs.ts b/yarn-project/circuits.js/src/structs/public_circuit_public_inputs.ts
index 572e76e273b..a1e1abad29e 100644
--- a/yarn-project/circuits.js/src/structs/public_circuit_public_inputs.ts
+++ b/yarn-project/circuits.js/src/structs/public_circuit_public_inputs.ts
@@ -2,7 +2,7 @@ import { makeTuple } from '@aztec/foundation/array';
 import { AztecAddress } from '@aztec/foundation/aztec-address';
 import { isArrayEmpty } from '@aztec/foundation/collection';
 import { Fr } from '@aztec/foundation/fields';
-import { BufferReader, Tuple, serializeToBuffer } from '@aztec/foundation/serialize';
+import { Tuple, serializeToBuffer } from '@aztec/foundation/serialize';
 import { FieldsOf } from '@aztec/foundation/types';
 
 import {
@@ -15,134 +15,7 @@ import {
   RETURN_VALUES_LENGTH,
 } from '../constants.gen.js';
 import { CallContext } from './call_context.js';
-import { Header, SideEffect, SideEffectLinkedToNoteHash } from './index.js';
-
-/**
- * Contract storage read operation on a specific contract.
- *
- * Note: Similar to `PublicDataRead` but it's from the POV of contract storage so we are not working with public data
- * tree leaf index but storage slot index.
- */
-export class ContractStorageRead {
-  constructor(
-    /**
-     * Storage slot we are reading from.
-     */
-    public readonly storageSlot: Fr,
-    /**
-     * Value read from the storage slot.
-     */
-    public readonly currentValue: Fr,
-    /**
-     * Optional side effect counter tracking position of this event in tx execution.
-     */
-    public readonly sideEffectCounter?: number,
-  ) {}
-
-  static from(args: {
-    /**
-     * Storage slot we are reading from.
-     */
-    storageSlot: Fr;
-    /**
-     * Value read from the storage slot.
-     */
-    currentValue: Fr;
-    /**
-     * Optional side effect counter tracking position of this event in tx execution.
-     */
-    sideEffectCounter?: number;
-  }) {
-    return new ContractStorageRead(args.storageSlot, args.currentValue, args.sideEffectCounter);
-  }
-
-  toBuffer() {
-    return serializeToBuffer(this.storageSlot, this.currentValue);
-  }
-
-  static fromBuffer(buffer: Buffer | BufferReader) {
-    const reader = BufferReader.asReader(buffer);
-    return new ContractStorageRead(Fr.fromBuffer(reader), Fr.fromBuffer(reader));
-  }
-
-  static empty() {
-    return new ContractStorageRead(Fr.ZERO, Fr.ZERO);
-  }
-
-  isEmpty() {
-    return this.storageSlot.isZero() && this.currentValue.isZero();
-  }
-
-  toFriendlyJSON() {
-    return `Slot=${this.storageSlot.toFriendlyJSON()}: ${this.currentValue.toFriendlyJSON()}`;
-  }
-}
-
-/**
- * Contract storage update request for a slot on a specific contract.
- *
- * Note: Similar to `PublicDataUpdateRequest` but it's from the POV of contract storage so we are not working with
- * public data tree leaf index but storage slot index.
- */
-export class ContractStorageUpdateRequest {
-  constructor(
-    /**
-     * Storage slot we are updating.
-     */
-    public readonly storageSlot: Fr,
-    /**
-     * Old value of the storage slot.
-     */
-    public readonly oldValue: Fr,
-    /**
-     * New value of the storage slot.
-     */
-    public readonly newValue: Fr,
-    /**
-     * Optional side effect counter tracking position of this event in tx execution.
-     */
-    public readonly sideEffectCounter?: number,
-  ) {}
-
-  toBuffer() {
-    return serializeToBuffer(this.storageSlot, this.oldValue, this.newValue);
-  }
-
-  static fromBuffer(buffer: Buffer | BufferReader) {
-    const reader = BufferReader.asReader(buffer);
-    return new ContractStorageUpdateRequest(Fr.fromBuffer(reader), Fr.fromBuffer(reader), Fr.fromBuffer(reader));
-  }
-
-  /**
-   * Create PublicCallRequest from a fields dictionary.
-   * @param fields - The dictionary.
-   * @returns A PublicCallRequest object.
-   */
-  static from(fields: FieldsOf<ContractStorageUpdateRequest>): ContractStorageUpdateRequest {
-    return new ContractStorageUpdateRequest(...ContractStorageUpdateRequest.getFields(fields));
-  }
-
-  /**
-   * Serialize into a field array. Low-level utility.
-   * @param fields - Object with fields.
-   * @returns The array.
-   */
-  static getFields(fields: FieldsOf<ContractStorageUpdateRequest>) {
-    return [fields.storageSlot, fields.oldValue, fields.newValue, fields.sideEffectCounter] as const;
-  }
-
-  static empty() {
-    return new ContractStorageUpdateRequest(Fr.ZERO, Fr.ZERO, Fr.ZERO);
-  }
-
-  isEmpty() {
-    return this.storageSlot.isZero() && this.oldValue.isZero() && this.newValue.isZero();
-  }
-
-  toFriendlyJSON() {
-    return `Slot=${this.storageSlot.toFriendlyJSON()}: ${this.oldValue.toFriendlyJSON()} => ${this.newValue.toFriendlyJSON()}`;
-  }
-}
+import { ContractStorageRead, ContractStorageUpdateRequest, Header, SideEffect, SideEffectLinkedToNoteHash } from './index.js';
 
 /**
  * Public inputs to a public circuit.