diff --git a/app/controllers/admin/spending_proposals_controller.rb b/app/controllers/admin/spending_proposals_controller.rb
index ebe466355..2140d6f37 100644
--- a/app/controllers/admin/spending_proposals_controller.rb
+++ b/app/controllers/admin/spending_proposals_controller.rb
@@ -2,10 +2,12 @@ class Admin::SpendingProposalsController < Admin::BaseController
   include FeatureFlags
   feature_flag :spending_proposals
 
+  has_filters %w{all without_admin}, only: :index
+
   load_and_authorize_resource
 
   def index
-    @spending_proposals = @spending_proposals.includes(:geozone, administrator: :user, valuators: :user).order(created_at: :desc).page(params[:page])
+    @spending_proposals = geozone_filter(params[:geozone_id].presence).includes(:geozone, administrator: :user, valuators: :user).send(@current_filter).order(created_at: :desc).page(params[:page])
   end
 
   def show
@@ -24,4 +26,17 @@ class Admin::SpendingProposalsController < Admin::BaseController
     @spending_proposal.update(params.require(:spending_proposal).permit(valuator_ids: []))
   end
 
+  private
+
+    def geozone_filter(geozone)
+        case geozone
+        when nil
+          @spending_proposals
+        when 'all'
+          @spending_proposals.where(geozone_id: nil)
+        else
+          @spending_proposals.where(geozone_id: params[:geozone_id].presence)
+        end
+    end
+
 end
diff --git a/app/models/proposal.rb b/app/models/proposal.rb
index 41ff57d10..c507f059c 100644
--- a/app/models/proposal.rb
+++ b/app/models/proposal.rb
@@ -39,7 +39,7 @@ class Proposal < ActiveRecord::Base
   scope :sort_by_created_at,       -> { reorder(created_at: :desc) }
   scope :sort_by_most_commented,   -> { reorder(comments_count: :desc) }
   scope :sort_by_random,           -> { reorder("RANDOM()") }
-  scope :sort_by_relevance ,       -> { all }
+  scope :sort_by_relevance,        -> { all }
   scope :sort_by_flags,            -> { order(flags_count: :desc, updated_at: :desc) }
   scope :last_week,                -> { where("proposals.created_at >= ?", 7.days.ago)}
 
diff --git a/app/models/spending_proposal.rb b/app/models/spending_proposal.rb
index 6339fd545..8b4a9f0ef 100644
--- a/app/models/spending_proposal.rb
+++ b/app/models/spending_proposal.rb
@@ -18,6 +18,8 @@ class SpendingProposal < ActiveRecord::Base
   validates :description, length: { maximum: SpendingProposal.description_max_length }
   validates :terms_of_service, acceptance: { allow_nil: false }, on: :create
 
+  scope :without_admin, -> { where(administrator_id: nil) }
+
   def description
     super.try :html_safe
   end
diff --git a/app/views/admin/spending_proposals/index.html.erb b/app/views/admin/spending_proposals/index.html.erb
index cddd63b76..26f216876 100644
--- a/app/views/admin/spending_proposals/index.html.erb
+++ b/app/views/admin/spending_proposals/index.html.erb
@@ -1,5 +1,16 @@
 <h2><%= t("admin.spending_proposals.index.title") %></h2>
 
+<div class="small-12 medium-4 column right">
+  <%= form_tag current_path_with_query_params(page: 1), method: :get, enforce_utf8: false do %>
+    <%= select_tag :geozone_id, options_for_select(geozone_select_options.unshift([t("geozones.none"), "all"]), params[:geozone_id]),
+                  { prompt: t("admin.spending_proposals.index.geozone_filter_all"),
+                    label: false,
+                    class: "js-submit-on-change"} %>
+  <% end %>
+</div>
+
+<%= render 'shared/filter_subnav', i18n_namespace: "admin.spending_proposals.index" %>
+
 <h3><%= page_entries_info @spending_proposals %></h3>
 
 <table>
diff --git a/config/locales/admin.en.yml b/config/locales/admin.en.yml
index b777a2c26..7d5cada0a 100755
--- a/config/locales/admin.en.yml
+++ b/config/locales/admin.en.yml
@@ -138,11 +138,10 @@ en:
         placeholder: Search user by name or email'
     spending_proposals:
       index:
-        filter: Filter
+        geozone_filter_all: All zones
         filters:
-          accepted: Accepted
-          rejected: Rejected
-          unresolved: Unresolved
+          all: All
+          without_admin: Without assigned admin
         title: Investment projects for participatory budgeting
         admin_assigned: Assigned administrator
         no_admin_assigned: No admin assigned
diff --git a/config/locales/admin.es.yml b/config/locales/admin.es.yml
index ef7eaec37..bc545bb59 100644
--- a/config/locales/admin.es.yml
+++ b/config/locales/admin.es.yml
@@ -138,11 +138,10 @@ es:
         placeholder: Buscar usuario por nombre o email
     spending_proposals:
       index:
-        filter: Filtro
+        geozone_filter_all: Todos los ámbitos de actuación
         filters:
-          accepted: Aceptadas
-          rejected: Rechazadas
-          unresolved: Sin resolver
+          all: Todas
+          without_admin: Sin administrador asignado
         title: Propuestas de inversión para presupuestos participativos
         admin_assigned: Administrador asignado
         no_admin_assigned: Sin admin asignado
diff --git a/spec/features/admin/spending_proposals_spec.rb b/spec/features/admin/spending_proposals_spec.rb
index e1a58d378..9b0d21636 100644
--- a/spec/features/admin/spending_proposals_spec.rb
+++ b/spec/features/admin/spending_proposals_spec.rb
@@ -50,6 +50,36 @@ feature 'Admin spending proposals' do
     end
   end
 
+  scenario "Current filter is properly highlighted" do
+    visit admin_spending_proposals_path
+
+    expect(page).to_not have_link('All')
+    expect(page).to have_link('Without assigned admin')
+
+    visit admin_spending_proposals_path(filter: 'without_admin')
+    expect(page).to_not have_link('Without assigned admin')
+    expect(page).to have_link('All')
+
+    visit admin_spending_proposals_path(filter: 'all')
+    expect(page).to_not have_link('All')
+    expect(page).to have_link('Without assigned admin')
+  end
+
+  scenario "Filtering proposals" do
+    create(:spending_proposal, title: "New idea")
+    assigned = create(:spending_proposal, title: "Assigned idea", administrator: create(:administrator))
+
+    visit admin_spending_proposals_path(filter: 'all')
+
+    expect(page).to have_content("New idea")
+    expect(page).to have_content("Assigned idea")
+
+    visit admin_spending_proposals_path(filter: 'without_admin')
+
+    expect(page).to have_content("New idea")
+    expect(page).to_not have_content("Assigned idea")
+  end
+
   scenario 'Show' do
     administrator = create(:administrator, user: create(:user, username: 'Ana', email: 'ana@admins.org'))
     valuator = create(:valuator, user: create(:user, username: 'Rachel', email: 'rachel@valuators.org'))
diff --git a/spec/models/spending_proposal_spec.rb b/spec/models/spending_proposal_spec.rb
index d0b6973a4..ab5956bc5 100644
--- a/spec/models/spending_proposal_spec.rb
+++ b/spec/models/spending_proposal_spec.rb
@@ -61,4 +61,19 @@ describe SpendingProposal do
     end
   end
 
+
+  describe "scopes" do
+    describe "without_admin" do
+      it "should return all spending proposals without assigned admin" do
+        spending_proposal1 = create(:spending_proposal)
+        spending_proposal2 = create(:spending_proposal, administrator: create(:administrator))
+
+        without_admin = SpendingProposal.without_admin
+
+        expect(without_admin.size).to eq(1)
+        expect(without_admin.first).to eq(spending_proposal1)
+      end
+    end
+  end
+
 end