diff --git a/src/Plugin/Condition/OtherFacet.php b/src/Plugin/Condition/OtherFacet.php
new file mode 100644
index 0000000..ebd4ee0
--- /dev/null
+++ b/src/Plugin/Condition/OtherFacet.php
@@ -0,0 +1,189 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\facets\Plugin\Condition\OtherFacet.
+ */
+
+namespace Drupal\facets\Plugin\Condition;
+
+use Drupal\Component\Plugin\PluginBase;
+use Drupal\Core\Block\BlockManager;
+use Drupal\Core\Condition\ConditionPluginBase;
+use Drupal\Core\Entity\EntityStorageInterface;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
+use Drupal\Core\Session\AccountProxyInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Provides an 'other facet' condition.
+ *
+ * @Condition(
+ *   id = "other_facet",
+ *   label = @Translation("Other facet"),
+ * )
+ */
+class OtherFacet extends ConditionPluginBase implements ContainerFactoryPluginInterface {
+
+  /**
+   * The entity storage.
+   *
+   * @var \Drupal\Core\Entity\EntityStorageInterface
+   */
+  protected $facetStorage;
+
+  /**
+   * The block plugin manager.
+   *
+   * @var \Drupal\Core\Block\BlockManager
+   */
+  protected $blockManager;
+
+  /**
+   * The user that's currently logged in.
+   *
+   * @var \Drupal\Core\Session\AccountProxyInterface
+   */
+  protected $currentUser;
+
+  /**
+   * Creates a new instance of the condition.
+   *
+   * @param \Drupal\Core\Entity\EntityStorageInterface $entity_storage
+   *   The entity storage.
+   * @param \Drupal\Core\Block\BlockManager $block_manager
+   *   The block plugin manager.
+   * @param \Drupal\Core\Session\AccountProxyInterface $current_user
+   *   The currently logged in user.
+   * @param array $configuration
+   *   The plugin configuration, i.e. an array with configuration values keyed
+   *   by configuration option name. The special key 'context' may be used to
+   *   initialize the defined contexts by setting it to an array of context
+   *   values keyed by context names.
+   * @param string $plugin_id
+   *   The plugin_id for the plugin instance.
+   * @param mixed $plugin_definition
+   *   The plugin implementation definition.
+   */
+  public function __construct(EntityStorageInterface $entity_storage, BlockManager $block_manager, AccountProxyInterface $current_user, array $configuration, $plugin_id, $plugin_definition) {
+    parent::__construct($configuration, $plugin_id, $plugin_definition);
+    $this->facetStorage = $entity_storage;
+    $this->blockManager = $block_manager;
+    $this->currentUser = $current_user;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
+    return new static(
+      $container->get('entity_type.manager')->getStorage('facets_facet'),
+      $container->get('plugin.manager.block'),
+      $container->get('current_user'),
+      $configuration,
+      $plugin_id,
+      $plugin_definition
+    );
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
+    $options = [];
+
+    foreach ($this->blockManager->getDefinitions() as $definition) {
+      if ($definition['provider'] == 'facets') {
+        $options[$definition['id']] = $definition['label'];
+      }
+    }
+
+    $form['facets'] = [
+      '#title' => $this->t('Other facet blocks'),
+      '#type' => 'radios',
+      '#options' => $options,
+      '#default_value' => $this->configuration['facets'],
+    ];
+    $form['facet_value'] = [
+      '#title' => $this->t('Facet value'),
+      '#description' => $this->t('Only applies when a facet is already selected.'),
+      '#type' => 'textfield',
+      '#default_value' => $this->configuration['facet_value'],
+    ];
+
+    return parent::buildConfigurationForm($form, $form_state);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function submitConfigurationForm(array &$form, FormStateInterface $form_state) {
+    $this->configuration['facets'] = $form_state->getValue('facets');
+    $this->configuration['facet_value'] = $form_state->getValue('facet_value');
+    parent::submitConfigurationForm($form, $form_state);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function summary() {
+    $facet = reset($this->configuration['facets']);
+    return $this->t('The facet is @facet also rendered on the same page.', ['@facet' => $facet]);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function evaluate() {
+    $allowed_facet_value = $this->configuration['facet_value'];
+    $allowed_facets = $this->configuration['facets'];
+
+    // Return as early as possible when there are no settings for allowed
+    // facets.
+    if (empty($allowed_facets) && !$this->isNegated()) {
+      return TRUE;
+    }
+    if (empty($allowed_facets) && $this->isNegated()) {
+      return FALSE;
+    }
+
+    /** @var \Drupal\facets\Plugin\Block\FacetBlock $block_plugin */
+    $block_plugin = $this->blockManager->createInstance($allowed_facets);
+
+    // Allowed facet value is not set, so we only have to check if the block is
+    // shown here.
+    if (empty($allowed_facet_value)) {
+      $access_result = $block_plugin->access($this->currentUser);
+      if ($this->isNegated()) {
+        // A negated configuration should return the inverse of the normal
+        // result.
+        return !($access_result);
+      }
+      return $access_result;
+    }
+
+    $block_plugin_id  = $block_plugin->getPluginId();
+    $facet_id = explode(PluginBase::DERIVATIVE_SEPARATOR, $block_plugin_id)[1];
+
+    /** @var \Drupal\facets\FacetInterface $facet */
+    $facet = $this->facetStorage->load($facet_id);
+
+    foreach ($facet->getResults() as $result) {
+      if (($result->getRawValue() == $allowed_facet_value || $result->getDisplayValue() == $allowed_facet_value) && $result->isActive()) {
+        return TRUE;
+      }
+    }
+
+    return FALSE;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function defaultConfiguration() {
+    $config = ['facets' => FALSE, 'facet_value' => FALSE];
+    return $config + parent::defaultConfiguration();
+  }
+
+}
diff --git a/tests/src/Unit/Plugin/Condition/OtherFacetTest.php b/tests/src/Unit/Plugin/Condition/OtherFacetTest.php
new file mode 100644
index 0000000..92e02aa
--- /dev/null
+++ b/tests/src/Unit/Plugin/Condition/OtherFacetTest.php
@@ -0,0 +1,113 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\Tests\facets\Plugin\Condition\OtherFacetTest.
+ */
+
+namespace Drupal\Tests\facets\Unit\Plugin\Condition;
+
+use Drupal\facets\Plugin\Condition\OtherFacet;
+use Drupal\Tests\UnitTestCase;
+
+/**
+ * Unit test for condition.
+ *
+ * @group facets
+ */
+class OtherFacetTest extends UnitTestCase {
+
+  /**
+   * Tests what happens when no values are passed on to the plugin
+   *
+   * @dataProvider provideNegated
+   */
+  public function testNoValue($negated) {
+    $storage = $this->getMock('\Drupal\Core\Entity\EntityStorageInterface');
+    $manager = $this->getMockBuilder('\Drupal\Core\Block\BlockManager')
+      ->disableOriginalConstructor()
+      ->getMock();
+    $user = $this->getMock('\Drupal\Core\Session\AccountProxyInterface');
+    $sut = new OtherFacet($storage, $manager, $user, ['negate' => $negated], 'other_facet', '');
+
+    $evaluation = $sut->evaluate();
+    if ($negated) {
+      $this->assertFalse($evaluation);
+    }
+    else {
+      $this->assertTrue($evaluation);
+    }
+  }
+
+  /**
+   * Displayed facet.
+   *
+   * @dataProvider provideNegated
+   */
+  public function testDisplayedFacet($negated) {
+    $block = $this->getMockBuilder('\Drupal\facets\Plugin\Block\FacetBlock')
+      ->disableOriginalConstructor()
+      ->getMock();
+    $block->expects($this->exactly(1))
+      ->method('access')
+      ->willReturn(TRUE);
+    $storage = $this->getMock('\Drupal\Core\Entity\EntityStorageInterface');
+    $manager = $this->getMockBuilder('\Drupal\Core\Block\BlockManager')
+      ->disableOriginalConstructor()
+      ->getMock();
+    $manager->expects($this->exactly(1))
+      ->method('createInstance')
+      ->willReturn($block);
+    $user = $this->getMock('\Drupal\Core\Session\AccountProxyInterface');
+    $sut = new OtherFacet($storage, $manager, $user, ['facets' => 'test', 'negate' => $negated], 'other_facet', '');
+
+    $evaluation = $sut->evaluate();
+    if ($negated) {
+      $this->assertFalse($evaluation);
+    }
+    else {
+      $this->assertTrue($evaluation);
+    }
+  }
+
+  /**
+   * Hidden facet.
+   *
+   * @dataProvider provideNegated
+   */
+  public function testHiddenFacet($negated) {
+    $block = $this->getMockBuilder('\Drupal\facets\Plugin\Block\FacetBlock')
+      ->disableOriginalConstructor()
+      ->getMock();
+    $block->expects($this->exactly(1))
+      ->method('access')
+      ->willReturn(FALSE);
+    $storage = $this->getMock('\Drupal\Core\Entity\EntityStorageInterface');
+    $manager = $this->getMockBuilder('\Drupal\Core\Block\BlockManager')
+      ->disableOriginalConstructor()
+      ->getMock();
+    $manager->expects($this->exactly(1))
+      ->method('createInstance')
+      ->willReturn($block);
+    $user = $this->getMock('\Drupal\Core\Session\AccountProxyInterface');
+    $sut = new OtherFacet($storage, $manager, $user, ['facets' => 'test', 'negate' => $negated], 'other_facet', '');
+
+    $evaluation = $sut->evaluate();
+    if ($negated) {
+      $this->assertTrue($evaluation);
+    }
+    else {
+      $this->assertFalse($evaluation);
+    }
+  }
+
+  /**
+   * @return array
+   */
+  public function provideNegated() {
+    return [
+      'normal' => [FALSE],
+      'negated' => [TRUE],
+    ];
+  }
+}