diff --git a/common/api/core-backend.api.md b/common/api/core-backend.api.md
index 5f392e5c9353..a5d51b98dae5 100644
--- a/common/api/core-backend.api.md
+++ b/common/api/core-backend.api.md
@@ -3116,7 +3116,7 @@ export abstract class IModelDb extends IModel {
     // @alpha
     importSchemaStrings(serializedXmlSchemas: string[]): Promise<void>;
     // @internal (undocumented)
-    protected initializeIModelDb(): void;
+    protected initializeIModelDb(when?: "pullMerge"): void;
     get isBriefcase(): boolean;
     isBriefcaseDb(): this is BriefcaseDb;
     // @internal
diff --git a/common/changes/@itwin/core-backend/nick-refreshextentsafterpullchanges_2024-09-23-18-57.json b/common/changes/@itwin/core-backend/nick-refreshextentsafterpullchanges_2024-09-23-18-57.json
new file mode 100644
index 000000000000..5fc04f51e269
--- /dev/null
+++ b/common/changes/@itwin/core-backend/nick-refreshextentsafterpullchanges_2024-09-23-18-57.json
@@ -0,0 +1,10 @@
+{
+  "changes": [
+    {
+      "packageName": "@itwin/core-backend",
+      "comment": "pulling a changeset with project extents changes now updates the extents of the opened imodel",
+      "type": "none"
+    }
+  ],
+  "packageName": "@itwin/core-backend"
+}
\ No newline at end of file
diff --git a/core/backend/src/IModelDb.ts b/core/backend/src/IModelDb.ts
index 0336ce040dcf..3e9609c14f61 100644
--- a/core/backend/src/IModelDb.ts
+++ b/core/backend/src/IModelDb.ts
@@ -352,8 +352,8 @@ export abstract class IModelDb extends IModel {
   }
 
   /** @internal */
-  protected initializeIModelDb() {
-    const props = this[_nativeDb].getIModelProps();
+  protected initializeIModelDb(when?: "pullMerge") {
+    const props = this[_nativeDb].getIModelProps(when);
     super.initialize(props.rootSubject.name, props);
     if (this._initialized)
       return;
@@ -3008,7 +3008,7 @@ export class BriefcaseDb extends IModelDb {
       await BriefcaseManager.pullAndApplyChangesets(this, arg ?? {});
       if (!this.skipSyncSchemasOnPullAndPush)
         await SchemaSync.pull(this);
-      this.initializeIModelDb();
+      this.initializeIModelDb("pullMerge");
     });
 
     IpcHost.notifyTxns(this, "notifyPulledChanges", this.changeset as ChangesetIndexAndId);
@@ -3094,7 +3094,7 @@ export class BriefcaseDb extends IModelDb {
     // pushing changes requires a writeable briefcase
     await this.executeWritable(async () => {
       await BriefcaseManager.pullMergePush(this, arg);
-      this.initializeIModelDb();
+      this.initializeIModelDb("pullMerge");
     });
 
     const changeset = this.changeset as ChangesetIndexAndId;
diff --git a/core/backend/src/test/standalone/IModelWrite.test.ts b/core/backend/src/test/standalone/IModelWrite.test.ts
index 8135991f58e5..4d0cb3ea9db6 100644
--- a/core/backend/src/test/standalone/IModelWrite.test.ts
+++ b/core/backend/src/test/standalone/IModelWrite.test.ts
@@ -6,7 +6,7 @@
 import { AccessToken, DbResult, GuidString, Id64, Id64String } from "@itwin/core-bentley";
 import {
   ChangesetIdWithIndex, Code, ColorDef,
-  GeometricElement2dProps, GeometryStreamProps, IModel, LockState, QueryRowFormat, RequestNewBriefcaseProps, SchemaState, SubCategoryAppearance,
+  GeometricElement2dProps, GeometryStreamProps, IModel, IModelVersion, LockState, QueryRowFormat, RequestNewBriefcaseProps, SchemaState, SubCategoryAppearance,
 } from "@itwin/core-common";
 import { Arc3d, IModelJson, Point2d, Point3d } from "@itwin/core-geometry";
 import * as chai from "chai";
@@ -839,6 +839,40 @@ describe("IModelWriteTest", () => {
     rwIModel2.close();
   });
 
+  it("pulling a changeset with extents changes should update the extents of the opened imodel", async () => {
+    const accessToken = await HubWrappers.getAccessToken(TestUserType.Regular);
+    const version0 = IModelTestUtils.resolveAssetFile("mirukuru.ibim");
+    const iModelId = await HubMock.createNewIModel({ iTwinId, iModelName: "projectExtentsTest", version0 });
+    const iModel = await HubWrappers.downloadAndOpenBriefcase({ iTwinId, iModelId });
+    const changesetIdBeforeExtentsChange = iModel.changeset.id;
+    const extents = iModel.projectExtents;
+    const newExtents = extents.clone();
+    newExtents.low.x += 100;
+    newExtents.low.y += 100;
+    newExtents.high.x += 100;
+    newExtents.high.y += 100;
+    iModel.updateProjectExtents(newExtents);
+    iModel.saveChanges("update project extents");
+    await iModel.pushChanges({ description: "update project extents" });
+    await HubWrappers.closeAndDeleteBriefcaseDb(accessToken, iModel);
+    const iModelBeforeExtentsChange = await HubWrappers.downloadAndOpenBriefcase({ accessToken, iTwinId, iModelId, asOf: IModelVersion.asOfChangeSet(changesetIdBeforeExtentsChange).toJSON() });
+    const extentsBeforePull = iModelBeforeExtentsChange.projectExtents;
+    // Read the extents fileProperty.
+    const extentsStrBeforePull = iModelBeforeExtentsChange.queryFilePropertyString({name: "Extents", namespace: "dgn_Db"});
+    const ecefLocationBeforeExtentsChange = iModelBeforeExtentsChange.ecefLocation;
+    await iModelBeforeExtentsChange.pullChanges(); // Pulls the extents change.
+    const extentsAfterPull = iModelBeforeExtentsChange.projectExtents;
+    const extentsStrAfterPull = iModelBeforeExtentsChange.queryFilePropertyString({name: "Extents", namespace: "dgn_Db"});
+    const ecefLocationAfterExtentsChange = iModelBeforeExtentsChange.ecefLocation;
+
+    expect(ecefLocationBeforeExtentsChange).to.not.be.undefined;
+    expect(ecefLocationAfterExtentsChange).to.not.be.undefined;
+    expect(ecefLocationBeforeExtentsChange?.isAlmostEqual(ecefLocationAfterExtentsChange!)).to.be.false;
+    expect(extentsStrAfterPull).to.not.equal(extentsStrBeforePull);
+    expect(extentsAfterPull.isAlmostEqual(extentsBeforePull)).to.be.false;
+    await HubWrappers.closeAndDeleteBriefcaseDb(accessToken, iModelBeforeExtentsChange);
+  });
+
   it("parent lock should suffice when inserting into deeply nested sub-model", async () => {
     const version0 = IModelTestUtils.resolveAssetFile("test.bim");
     const iModelId = await HubMock.createNewIModel({ iTwinId, iModelName: "subModelCoveredByParentLockTest", version0 });