diff --git a/backend/tests/test_belgium_training_portfolio.py b/backend/tests/test_belgium_training_portfolio.py
index 41a6421f..124a05b8 100644
--- a/backend/tests/test_belgium_training_portfolio.py
+++ b/backend/tests/test_belgium_training_portfolio.py
@@ -19,7 +19,7 @@ def test_portfolio_covers_every_region_split_and_context_family() -> None:
     assert len({aoi.slug for aoi in module.AOIS}) == len(module.AOIS)
     counts = Counter((aoi.region, aoi.split) for aoi in module.AOIS)
     for region in module.REGION_CONTRACT:
-        assert counts[(region, "train")] >= 10
+        assert counts[(region, "train")] >= 15
         assert counts[(region, "val")] >= 2
         assert counts[(region, "calibration")] >= 3
         assert counts[(region, "test")] >= 3
diff --git a/docs/BELGIUM_BUILDING_TRAINING_LOOP.md b/docs/BELGIUM_BUILDING_TRAINING_LOOP.md
index e4885bbe..0316a568 100644
--- a/docs/BELGIUM_BUILDING_TRAINING_LOOP.md
+++ b/docs/BELGIUM_BUILDING_TRAINING_LOOP.md
@@ -28,7 +28,7 @@ data. A new iteration adds independent training AOIs instead.
 | --- | --- |
 | Runtime | CUDA required; NVIDIA device visible; no CPU fallback |
 | Corpus | Immutable manifest and artifacts with SHA-256 evidence |
-| Geographic composition | Each land region has at least 10 train, 2 val, 3 calibration, 3 test and 2 background-test AOIs |
+| Geographic composition | Each land region has at least 15 train, 2 val, 3 calibration, 3 test and 2 background-test AOIs |
 | Contexts | Dense urban, suburban, rural, industrial and difficult negative contexts represented |
 | Leakage | No intersecting AOIs across protected split roles |
 | Label integrity | No malformed rows; sub-resolution labels explicitly rejected |
diff --git a/scripts/provision_belgium_building_training_portfolio.py b/scripts/provision_belgium_building_training_portfolio.py
index ff7635c9..4b653aab 100644
--- a/scripts/provision_belgium_building_training_portfolio.py
+++ b/scripts/provision_belgium_building_training_portfolio.py
@@ -37,6 +37,11 @@ AOIS = (
     Aoi("roeselare-industry-train", "flanders", "industrial", "train", 3.120, 50.945),
     Aoi("dendermonde-suburban-train", "flanders", "suburban", "train", 4.100, 51.030),
     Aoi("houthalen-forest-train-bg", "flanders", "forest-negative", "train", 5.380, 51.030, "background_candidate"),
+    Aoi("lier-urban-train", "flanders", "historic-urban", "train", 4.570, 51.130),
+    Aoi("lokeren-ribbon-train", "flanders", "ribbon-development", "train", 3.990, 51.100),
+    Aoi("tienen-urban-train", "flanders", "mixed-urban", "train", 4.940, 50.810),
+    Aoi("deinze-suburban-train", "flanders", "suburban", "train", 3.530, 50.980),
+    Aoi("lommel-industry-train", "flanders", "industrial", "train", 5.310, 51.230),
     Aoi("bruges-val", "flanders", "historic-urban", "val", 3.224, 51.209),
     Aoi("turnhout-val", "flanders", "suburban", "val", 4.944, 51.322),
     Aoi("hasselt-cal", "flanders", "suburban", "calibration", 5.340, 50.930),
@@ -58,6 +63,11 @@ AOIS = (
     Aoi("marche-smallcity-train", "wallonia", "small-city", "train", 5.340, 50.230),
     Aoi("ath-rural-train", "wallonia", "rural-town", "train", 3.780, 50.630),
     Aoi("condroz-field-train-bg", "wallonia", "farmland-negative", "train", 4.700, 50.300, "background_candidate"),
+    Aoi("la-louviere-train", "wallonia", "dense-urban", "train", 4.190, 50.480),
+    Aoi("huy-valley-train", "wallonia", "valley-urban", "train", 5.240, 50.520),
+    Aoi("eupen-train", "wallonia", "regional-architecture", "train", 6.030, 50.630),
+    Aoi("ciney-train", "wallonia", "rural-town", "train", 5.100, 50.290),
+    Aoi("couvin-train", "wallonia", "forest-town", "train", 4.500, 50.050),
     Aoi("tournai-val", "wallonia", "historic-urban", "val", 3.389, 50.606),
     Aoi("arlon-val", "wallonia", "small-city", "val", 5.817, 49.683),
     Aoi("verviers-cal", "wallonia", "suburban", "calibration", 5.860, 50.590),
@@ -79,6 +89,11 @@ AOIS = (
     Aoi("ixelles-dense-train", "brussels", "dense-urban", "train", 4.370, 50.830),
     Aoi("forest-residential-train", "brussels", "residential", "train", 4.320, 50.810),
     Aoi("woluwe-park-train-hard", "brussels", "park-hard-negative", "train", 4.440, 50.840, "background_candidate"),
+    Aoi("evere-train", "brussels", "dense-residential", "train", 4.400, 50.870),
+    Aoi("berchem-train", "brussels", "suburban", "train", 4.290, 50.860),
+    Aoi("watermael-train", "brussels", "forest-edge-residential", "train", 4.400, 50.810),
+    Aoi("neder-over-heembeek-train", "brussels", "mixed-urban", "train", 4.380, 50.900),
+    Aoi("brussels-canal-south-train-hard", "brussels", "canal-hard-negative", "train", 4.320, 50.820, "background_candidate"),
     Aoi("woluwe-val", "brussels", "suburban", "val", 4.430, 50.845),
     Aoi("molenbeek-val", "brussels", "mixed-urban", "val", 4.325, 50.855),
     Aoi("brussels-park-cal", "brussels", "park-edge", "calibration", 4.380, 50.820),