diff --git a/src/core/backbone_router/local.cpp b/src/core/backbone_router/local.cpp
index 1549b8123..69faae0b7 100644
--- a/src/core/backbone_router/local.cpp
+++ b/src/core/backbone_router/local.cpp
@@ -233,7 +233,7 @@ void Local::SetState(BackboneRouterState aState)
 
     if (mState == OT_BACKBONE_ROUTER_STATE_PRIMARY)
     {
-        IgnoreError(Get<ThreadNetif>().RemoveUnicastAddress(mBackboneRouterPrimaryAloc));
+        Get<ThreadNetif>().RemoveUnicastAddress(mBackboneRouterPrimaryAloc);
     }
     else if (aState == OT_BACKBONE_ROUTER_STATE_PRIMARY)
     {
@@ -357,7 +357,7 @@ void Local::ApplyMeshLocalPrefix(void)
 
     if (IsPrimary())
     {
-        IgnoreError(Get<ThreadNetif>().RemoveUnicastAddress(mBackboneRouterPrimaryAloc));
+        Get<ThreadNetif>().RemoveUnicastAddress(mBackboneRouterPrimaryAloc);
         mBackboneRouterPrimaryAloc.GetAddress().SetPrefix(Get<Mle::MleRouter>().GetMeshLocalPrefix());
         Get<ThreadNetif>().AddUnicastAddress(mBackboneRouterPrimaryAloc);
     }
diff --git a/src/core/common/linked_list.hpp b/src/core/common/linked_list.hpp
index 9d4add2ba..ba82fb6ed 100644
--- a/src/core/common/linked_list.hpp
+++ b/src/core/common/linked_list.hpp
@@ -235,7 +235,7 @@ public:
      * @retval FALSE  The linked list does not contain @p aEntry.
      *
      */
-    bool Contains(Type &aEntry) const
+    bool Contains(const Type &aEntry) const
     {
         bool contains = false;
 
diff --git a/src/core/meshcop/border_agent.cpp b/src/core/meshcop/border_agent.cpp
index 18550c586..3d7a74cc2 100644
--- a/src/core/meshcop/border_agent.cpp
+++ b/src/core/meshcop/border_agent.cpp
@@ -660,7 +660,7 @@ void BorderAgent::HandleConnected(bool aConnected)
     else
     {
         otLogInfoMeshCoP("Commissioner disconnected");
-        IgnoreError(Get<ThreadNetif>().RemoveUnicastAddress(mCommissionerAloc));
+        Get<ThreadNetif>().RemoveUnicastAddress(mCommissionerAloc);
         SetState(OT_BORDER_AGENT_STATE_STARTED);
     }
 }
@@ -751,8 +751,9 @@ void BorderAgent::ApplyMeshLocalPrefix(void)
 {
     VerifyOrExit(mState == OT_BORDER_AGENT_STATE_ACTIVE, OT_NOOP);
 
-    if (Get<ThreadNetif>().RemoveUnicastAddress(mCommissionerAloc) == OT_ERROR_NONE)
+    if (Get<ThreadNetif>().HasUnicastAddress(mCommissionerAloc))
     {
+        Get<ThreadNetif>().RemoveUnicastAddress(mCommissionerAloc);
         mCommissionerAloc.GetAddress().SetPrefix(Get<Mle::MleRouter>().GetMeshLocalPrefix());
         Get<ThreadNetif>().AddUnicastAddress(mCommissionerAloc);
     }
diff --git a/src/core/meshcop/commissioner.cpp b/src/core/meshcop/commissioner.cpp
index 1f4f480ab..df2befd0d 100644
--- a/src/core/meshcop/commissioner.cpp
+++ b/src/core/meshcop/commissioner.cpp
@@ -193,7 +193,7 @@ otError Commissioner::Stop(bool aResign)
 
     if (mState == OT_COMMISSIONER_STATE_ACTIVE)
     {
-        IgnoreError(Get<ThreadNetif>().RemoveUnicastAddress(mCommissionerAloc));
+        Get<ThreadNetif>().RemoveUnicastAddress(mCommissionerAloc);
         RemoveCoapResources();
         ClearJoiners();
         needResign = true;
@@ -1110,7 +1110,7 @@ void Commissioner::ApplyMeshLocalPrefix(void)
 {
     VerifyOrExit(mState == OT_COMMISSIONER_STATE_ACTIVE, OT_NOOP);
 
-    IgnoreError(Get<ThreadNetif>().RemoveUnicastAddress(mCommissionerAloc));
+    Get<ThreadNetif>().RemoveUnicastAddress(mCommissionerAloc);
     mCommissionerAloc.GetAddress().SetPrefix(Get<Mle::MleRouter>().GetMeshLocalPrefix());
     Get<ThreadNetif>().AddUnicastAddress(mCommissionerAloc);
 
diff --git a/src/core/net/dhcp6_client.cpp b/src/core/net/dhcp6_client.cpp
index 152f49b38..75b3a7f7b 100644
--- a/src/core/net/dhcp6_client.cpp
+++ b/src/core/net/dhcp6_client.cpp
@@ -104,7 +104,7 @@ void Dhcp6Client::UpdateAddresses(void)
 
         if (!found)
         {
-            IgnoreError(Get<ThreadNetif>().RemoveUnicastAddress(ia.mNetifAddress));
+            Get<ThreadNetif>().RemoveUnicastAddress(ia.mNetifAddress);
             mIdentityAssociations[i].mStatus = kIaStatusInvalid;
         }
     }
diff --git a/src/core/net/dhcp6_server.cpp b/src/core/net/dhcp6_server.cpp
index f5c0e1bca..25d509b13 100644
--- a/src/core/net/dhcp6_server.cpp
+++ b/src/core/net/dhcp6_server.cpp
@@ -493,7 +493,8 @@ void Dhcp6Server::ApplyMeshLocalPrefix(void)
         if (mPrefixAgents[i].IsValid())
         {
             PrefixAgent *entry = &mPrefixAgents[i];
-            IgnoreError(Get<ThreadNetif>().RemoveUnicastAddress(entry->GetAloc()));
+
+            Get<ThreadNetif>().RemoveUnicastAddress(entry->GetAloc());
             entry->GetAloc().GetAddress().SetPrefix(Get<Mle::MleRouter>().GetMeshLocalPrefix());
             Get<ThreadNetif>().AddUnicastAddress(entry->GetAloc());
         }
diff --git a/src/core/net/netif.cpp b/src/core/net/netif.cpp
index 3c9708f72..c7fb0ce01 100644
--- a/src/core/net/netif.cpp
+++ b/src/core/net/netif.cpp
@@ -452,11 +452,9 @@ exit:
     return;
 }
 
-otError Netif::RemoveUnicastAddress(const NetifUnicastAddress &aAddress)
+void Netif::RemoveUnicastAddress(const NetifUnicastAddress &aAddress)
 {
-    otError error;
-
-    SuccessOrExit(error = mUnicastAddresses.Remove(aAddress));
+    SuccessOrExit(mUnicastAddresses.Remove(aAddress));
 
     Get<Notifier>().Signal(aAddress.mRloc ? OT_CHANGED_THREAD_RLOC_REMOVED : OT_CHANGED_IP6_ADDRESS_REMOVED);
 
@@ -464,7 +462,7 @@ otError Netif::RemoveUnicastAddress(const NetifUnicastAddress &aAddress)
     mAddressCallback(&aAddress.mAddress, aAddress.mPrefixLength, /* IsAdded */ false, mAddressCallbackContext);
 
 exit:
-    return error;
+    return;
 }
 
 otError Netif::AddExternalUnicastAddress(const NetifUnicastAddress &aAddress)
diff --git a/src/core/net/netif.hpp b/src/core/net/netif.hpp
index 0ad5f5376..2cd2c44ed 100644
--- a/src/core/net/netif.hpp
+++ b/src/core/net/netif.hpp
@@ -213,11 +213,16 @@ public:
      *
      * @param[in]  aAddress  A reference to the unicast address.
      *
-     * @retval OT_ERROR_NONE       Successfully removed the unicast address.
-     * @retval OT_ERROR_NOT_FOUND  The unicast address wasn't found to be removed.
+     */
+    void RemoveUnicastAddress(const NetifUnicastAddress &aAddress);
+
+    /**
+     * This method indicates whether a unicast address is added to the network interface.
+     *
+     * @param[in]  aAddress  A reference to the unicast address.
      *
      */
-    otError RemoveUnicastAddress(const NetifUnicastAddress &aAddress);
+    bool HasUnicastAddress(const NetifUnicastAddress &aAddress) const { return mUnicastAddresses.Contains(aAddress); }
 
     /**
      * This method adds an external (to OpenThread) unicast address to the network interface.
diff --git a/src/core/thread/address_resolver.cpp b/src/core/thread/address_resolver.cpp
index 113e281cc..a3a8e4e0f 100644
--- a/src/core/thread/address_resolver.cpp
+++ b/src/core/thread/address_resolver.cpp
@@ -742,7 +742,7 @@ void AddressResolver::HandleAddressError(Coap::Message &aMessage, const Ip6::Mes
             memcmp(Get<Mle::MleRouter>().GetMeshLocal64().GetIid(), meshLocalIid, sizeof(meshLocalIid)))
         {
             // Target EID matches address and Mesh Local EID differs
-            IgnoreError(Get<ThreadNetif>().RemoveUnicastAddress(*address));
+            Get<ThreadNetif>().RemoveUnicastAddress(*address);
             ExitNow();
         }
     }
diff --git a/src/core/thread/mle.cpp b/src/core/thread/mle.cpp
index e493c662e..137d98ceb 100644
--- a/src/core/thread/mle.cpp
+++ b/src/core/thread/mle.cpp
@@ -224,7 +224,7 @@ otError Mle::Disable(void)
 
     Stop(false);
     SuccessOrExit(error = mSocket.Close());
-    SuccessOrExit(error = Get<ThreadNetif>().RemoveUnicastAddress(mLinkLocal64));
+    Get<ThreadNetif>().RemoveUnicastAddress(mLinkLocal64);
 
 exit:
     return error;
@@ -303,8 +303,8 @@ void Mle::Stop(bool aClearNetworkDatasets)
     SetStateDetached();
     IgnoreError(Get<ThreadNetif>().UnsubscribeMulticast(mRealmLocalAllThreadNodes));
     IgnoreError(Get<ThreadNetif>().UnsubscribeMulticast(mLinkLocalAllThreadNodes));
-    IgnoreError(Get<ThreadNetif>().RemoveUnicastAddress(mMeshLocal16));
-    IgnoreError(Get<ThreadNetif>().RemoveUnicastAddress(mMeshLocal64));
+    Get<ThreadNetif>().RemoveUnicastAddress(mMeshLocal16);
+    Get<ThreadNetif>().RemoveUnicastAddress(mMeshLocal64);
 
     SetRole(kRoleDisabled);
 
@@ -747,7 +747,7 @@ void Mle::SetStateDetached(void)
 
     if (IsLeader())
     {
-        IgnoreError(Get<ThreadNetif>().RemoveUnicastAddress(mLeaderAloc));
+        Get<ThreadNetif>().RemoveUnicastAddress(mLeaderAloc);
     }
 
     SetRole(kRoleDetached);
@@ -773,7 +773,7 @@ void Mle::SetStateChild(uint16_t aRloc16)
 {
     if (IsLeader())
     {
-        IgnoreError(Get<ThreadNetif>().RemoveUnicastAddress(mLeaderAloc));
+        Get<ThreadNetif>().RemoveUnicastAddress(mLeaderAloc);
     }
 
     SetRloc16(aRloc16);
@@ -896,7 +896,7 @@ exit:
 
 void Mle::UpdateLinkLocalAddress(void)
 {
-    IgnoreError(Get<ThreadNetif>().RemoveUnicastAddress(mLinkLocal64));
+    Get<ThreadNetif>().RemoveUnicastAddress(mLinkLocal64);
     mLinkLocal64.GetAddress().SetIid(Get<Mac::Mac>().GetExtAddress());
     Get<ThreadNetif>().AddUnicastAddress(mLinkLocal64);
 
@@ -909,11 +909,11 @@ void Mle::SetMeshLocalPrefix(const MeshLocalPrefix &aMeshLocalPrefix)
 
     if (Get<ThreadNetif>().IsUp())
     {
-        IgnoreError(Get<ThreadNetif>().RemoveUnicastAddress(mLeaderAloc));
+        Get<ThreadNetif>().RemoveUnicastAddress(mLeaderAloc);
 
         // We must remove the old addresses before adding the new ones.
-        IgnoreError(Get<ThreadNetif>().RemoveUnicastAddress(mMeshLocal64));
-        IgnoreError(Get<ThreadNetif>().RemoveUnicastAddress(mMeshLocal16));
+        Get<ThreadNetif>().RemoveUnicastAddress(mMeshLocal64);
+        Get<ThreadNetif>().RemoveUnicastAddress(mMeshLocal16);
         IgnoreError(Get<ThreadNetif>().UnsubscribeMulticast(mLinkLocalAllThreadNodes));
         IgnoreError(Get<ThreadNetif>().UnsubscribeMulticast(mRealmLocalAllThreadNodes));
     }
@@ -972,7 +972,7 @@ void Mle::ApplyMeshLocalPrefix(void)
     {
         if (mServiceAlocs[i].GetAddress().GetLocator() != Mac::kShortAddrInvalid)
         {
-            IgnoreError(Get<ThreadNetif>().RemoveUnicastAddress(mServiceAlocs[i]));
+            Get<ThreadNetif>().RemoveUnicastAddress(mServiceAlocs[i]);
             mServiceAlocs[i].GetAddress().SetPrefix(GetMeshLocalPrefix());
             Get<ThreadNetif>().AddUnicastAddress(mServiceAlocs[i]);
         }
@@ -1009,7 +1009,7 @@ void Mle::SetRloc16(uint16_t aRloc16)
         }
     }
 
-    IgnoreError(Get<ThreadNetif>().RemoveUnicastAddress(mMeshLocal16));
+    Get<ThreadNetif>().RemoveUnicastAddress(mMeshLocal16);
 
     Get<Mac::Mac>().SetShortAddress(aRloc16);
     Get<Ip6::Mpl>().SetSeedId(aRloc16);
@@ -1641,7 +1641,7 @@ void Mle::UpdateServiceAlocs(void)
         if ((serviceAloc != Mac::kShortAddrInvalid) &&
             (!Get<NetworkData::Leader>().ContainsService(Mle::ServiceIdFromAloc(serviceAloc), rloc)))
         {
-            IgnoreError(Get<ThreadNetif>().RemoveUnicastAddress(mServiceAlocs[i]));
+            Get<ThreadNetif>().RemoveUnicastAddress(mServiceAlocs[i]);
             mServiceAlocs[i].GetAddress().SetLocator(Mac::kShortAddrInvalid);
         }
     }
diff --git a/src/core/utils/slaac_address.cpp b/src/core/utils/slaac_address.cpp
index a24441ffe..0b13a0dde 100644
--- a/src/core/utils/slaac_address.cpp
+++ b/src/core/utils/slaac_address.cpp
@@ -186,7 +186,7 @@ void Slaac::Update(UpdateMode aMode)
             {
                 otLogInfoUtil("SLAAC: Removing address %s", slaacAddr->GetAddress().ToString().AsCString());
 
-                IgnoreError(Get<ThreadNetif>().RemoveUnicastAddress(*slaacAddr));
+                Get<ThreadNetif>().RemoveUnicastAddress(*slaacAddr);
                 slaacAddr->mValid = false;
             }
         }