diff --git a/src/components/base-address/BaseAddress.vue b/src/components/base-address/BaseAddress.vue
index aaa8948f..76452188 100644
--- a/src/components/base-address/BaseAddress.vue
+++ b/src/components/base-address/BaseAddress.vue
@@ -454,13 +454,24 @@ export default class BaseAddress extends Mixins(ValidationMixin, CountriesProvin
     return this.addressLocal
   }
 
+  /**
+   * Whether the Postal Code model value is valid per the schema.
+   * NB: Vuelidate validates the model continuously, even while the Vuetify postal code
+   * rules are disabled (ie, before the field's first blur), so this reflects the actual
+   * validity of the value rather than whether errors are being displayed.
+   */
+  get isPostalCodeValid (): boolean {
+    return !this.$v?.addressLocal?.postalCode?.$invalid
+  }
+
   /** Watches for changes to the address form validity and emits the updated state. */
   @Watch('addressFormValid')
-  @Watch('postalCodeRulesEnabled')
+  @Watch('isPostalCodeValid')
   @Emit('valid')
   onAddressFormValidChanged (): boolean {
-    // form is valid only if postal code rules are enabled
-    return (this.addressFormValid && this.postalCodeRulesEnabled)
+    // NB: addressFormValid alone can be a false positive while the Vuetify postal code
+    // rules are still disabled, so also check the postal code's Vuelidate state
+    return (this.addressFormValid && this.isPostalCodeValid)
   }
 
   /**
diff --git a/src/components/base-address/package.json b/src/components/base-address/package.json
index 63d8fad8..81487c59 100644
--- a/src/components/base-address/package.json
+++ b/src/components/base-address/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@bcrs-shared-components/base-address",
-  "version": "2.2.8",
+  "version": "2.2.9",
   "publishConfig": {
     "access": "public"
   },
diff --git a/tests/unit/BaseAddress.spec.ts b/tests/unit/BaseAddress.spec.ts
index ea6437d9..780140e3 100644
--- a/tests/unit/BaseAddress.spec.ts
+++ b/tests/unit/BaseAddress.spec.ts
@@ -1,7 +1,9 @@
 import Vue from 'vue'
 import Vuetify from 'vuetify'
 import { mount, Wrapper } from '@vue/test-utils'
+import { required, maxLength } from 'vuelidate/lib/validators'
 import { BaseAddress } from '@/components/base-address'
+import { isRequiredPostalCode, isValidPostalCode } from '@bcrs-shared-components/validators'
 
 const vuetify = new Vuetify({})
 
@@ -106,3 +108,89 @@ describe('BaseAddress - isSchemaRequired', () => {
     expect(wrapper.vm.isSchemaRequired('streetAddress')).toBe(false)
   })
 })
+
+describe('BaseAddress - valid event (#34469)', () => {
+  // schema mirroring the consuming apps' address schemas
+  const schema = {
+    streetAddress: { required, maxLength: maxLength(50) },
+    streetAddressAdditional: { maxLength: maxLength(105) },
+    addressCity: { required, maxLength: maxLength(40) },
+    addressCountry: { required },
+    addressRegion: { maxLength: maxLength(2) },
+    postalCode: { isRequiredPostalCode, maxLength: maxLength(15), isValidPostalCode },
+    deliveryInstructions: { maxLength: maxLength(80) }
+  }
+
+  const address = {
+    streetAddress: '123 Main St',
+    streetAddressAdditional: 'Suite 200',
+    addressCity: 'Victoria',
+    addressRegion: 'BC',
+    postalCode: 'V8V 1V1',
+    addressCountry: 'CA',
+    deliveryInstructions: ''
+  }
+
+  let wrapper: Wrapper<any>
+
+  afterEach(() => {
+    wrapper.destroy()
+  })
+
+  it('emits valid=true when an optional field is edited and the postal code was never blurred', async () => {
+    wrapper = mount(BaseAddress, {
+      vuetify,
+      propsData: { schema, editing: true, address }
+    })
+    await Vue.nextTick()
+
+    // clear Additional Street Address without ever touching the postal code field
+    // (the reported bug: this emitted valid=false and nothing ever re-emitted true)
+    const line2 = wrapper.find('.street-address-additional textarea')
+    await line2.setValue('')
+    await Vue.nextTick()
+
+    const validEvents = wrapper.emitted('valid')
+    if (validEvents) {
+      expect(validEvents[validEvents.length - 1][0]).toBe(true)
+    }
+    // the model itself must agree
+    expect(wrapper.vm.isPostalCodeValid).toBe(true)
+    expect(wrapper.vm.addressFormValid).toBe(true)
+  })
+
+  it('emits valid=false when the postal code value is invalid, even before its rules are enabled', async () => {
+    wrapper = mount(BaseAddress, {
+      vuetify,
+      propsData: { schema, editing: true, address: { ...address, postalCode: '' } }
+    })
+    await Vue.nextTick()
+
+    // editing another field must not mask the invalid (empty, required) postal code
+    const line2 = wrapper.find('.street-address-additional textarea')
+    await line2.setValue('')
+    await Vue.nextTick()
+
+    expect(wrapper.vm.isPostalCodeValid).toBe(false)
+
+    const validEvents = wrapper.emitted('valid')
+    if (validEvents) {
+      expect(validEvents[validEvents.length - 1][0]).toBe(false)
+    }
+  })
+
+  it('emits valid=true after validate() on a fully valid address', async () => {
+    wrapper = mount(BaseAddress, {
+      vuetify,
+      propsData: { schema, editing: true, address }
+    })
+    await Vue.nextTick()
+
+    await wrapper.vm.validate()
+    await Vue.nextTick()
+
+    const validEvents = wrapper.emitted('valid')
+    expect(validEvents).toBeTruthy()
+    expect(validEvents[validEvents.length - 1][0]).toBe(true)
+  })
+})