diff --git a/src/main/java/net/hostsharing/hsadminng/hs/hosting/asset/HsHostingAssetController.java b/src/main/java/net/hostsharing/hsadminng/hs/hosting/asset/HsHostingAssetController.java
index 62a62b34..b3411576 100644
--- a/src/main/java/net/hostsharing/hsadminng/hs/hosting/asset/HsHostingAssetController.java
+++ b/src/main/java/net/hostsharing/hsadminng/hs/hosting/asset/HsHostingAssetController.java
@@ -60,7 +60,7 @@ public class HsHostingAssetController implements HsHostingAssetsApi {
 
         final var entityToSave = mapper.map(body, HsHostingAssetEntity.class, RESOURCE_TO_ENTITY_POSTMAPPER);
 
-        final var saved = assetRepo.save(entityToSave);
+        final var saved = assetRepo.save(valid(entityToSave));
 
         final var uri =
                 MvcUriComponentsBuilder.fromController(getClass())
@@ -71,6 +71,11 @@ public class HsHostingAssetController implements HsHostingAssetsApi {
         return ResponseEntity.created(uri).body(mapped);
     }
 
+    private HsHostingAssetEntity valid(final HsHostingAssetEntity entityToSave) {
+        HsHostingAssetValidator.forType(entityToSave.getType()).validate(entityToSave);
+        return entityToSave;
+    }
+
     @Override
     @Transactional(readOnly = true)
     public ResponseEntity<HsHostingAssetResource> getAssetByUuid(
diff --git a/src/main/java/net/hostsharing/hsadminng/hs/hosting/asset/HsHostingAssetPropertyValidator.java b/src/main/java/net/hostsharing/hsadminng/hs/hosting/asset/HsHostingAssetPropertyValidator.java
new file mode 100644
index 00000000..7dd4154d
--- /dev/null
+++ b/src/main/java/net/hostsharing/hsadminng/hs/hosting/asset/HsHostingAssetPropertyValidator.java
@@ -0,0 +1,95 @@
+package net.hostsharing.hsadminng.hs.hosting.asset;
+
+import lombok.With;
+import lombok.experimental.SuperBuilder;
+
+import java.util.Map;
+
+class Validator {
+}
+
+@SuperBuilder
+class PropertyValidator extends Validator {
+    String propertyName;
+}
+
+@SuperBuilder
+class NumericPropertyValidator extends PropertyValidator {
+
+    private String unit;
+    private Integer min;
+    private Integer max;
+    private Integer step;
+
+    static NumericPropertyValidatorBuilder numericProperty(final String propertyName) {
+        return NumericPropertyValidator.builder().propertyName(propertyName);
+    }
+}
+
+@With
+@SuperBuilder
+class EnumPropertyValidator extends PropertyValidator {
+
+    private String[] values;
+
+    static EnumPropertyValidatorBuilderExtension enumProperty(final String propertyName) {
+        return new EnumPropertyValidatorBuilderExtension(propertyName);
+    }
+    static class EnumPropertyValidatorBuilderExtension extends ValidatorBuilder<EnumPropertyValidator, EnumPropertyValidatorBuilderExtension> {
+
+        private final String propertyName;
+        private String[] values;
+
+        EnumPropertyValidatorBuilderExtension(final String propertyName) {
+            this.propertyName = propertyName;
+        }
+
+
+        public EnumPropertyValidatorBuilderExtension values(final String... values) {
+            this.values = values;
+            return this;
+        }
+
+        @Override
+        protected EnumPropertyValidatorBuilderExtension self() {
+            return this;
+        }
+
+        @Override
+        public EnumPropertyValidator build() {
+            return EnumPropertyValidator.builder().propertyName(propertyName).values(values).build();
+        }
+    }
+}
+
+@SuperBuilder
+class BooleanPropertyValidator extends PropertyValidator {
+
+    private Map.Entry<String, String> falseIf;
+    static BooleanPropertyValidatorBuilderExtension booleanProperty(final String propertyName) {
+        return new BooleanPropertyValidatorBuilderExtension(propertyName);
+    }
+
+    static class BooleanPropertyValidatorBuilderExtension extends PropertyValidatorBuilder<BooleanPropertyValidator, BooleanPropertyValidatorBuilderExtension> {
+
+
+        BooleanPropertyValidatorBuilderExtension(final String propertyName) {
+            super.propertyName(propertyName);
+        }
+
+
+        BooleanPropertyValidatorBuilderExtension falseIf(final String propertyName, final String propertyValue) {
+            return this;
+        }
+
+        @Override
+        protected BooleanPropertyValidatorBuilderExtension self() {
+            return this;
+        }
+
+        @Override
+        public BooleanPropertyValidator build() {
+            return new BooleanPropertyValidator()
+        }
+    }
+}
diff --git a/src/main/java/net/hostsharing/hsadminng/hs/hosting/asset/HsHostingAssetValidator.java b/src/main/java/net/hostsharing/hsadminng/hs/hosting/asset/HsHostingAssetValidator.java
new file mode 100644
index 00000000..95f94124
--- /dev/null
+++ b/src/main/java/net/hostsharing/hsadminng/hs/hosting/asset/HsHostingAssetValidator.java
@@ -0,0 +1,51 @@
+package net.hostsharing.hsadminng.hs.hosting.asset;
+
+import java.util.Map;
+
+import static java.util.Map.entry;
+import static net.hostsharing.hsadminng.hs.hosting.asset.BooleanPropertyValidator.booleanProperty;
+import static net.hostsharing.hsadminng.hs.hosting.asset.EnumPropertyValidator.enumProperty;
+import static net.hostsharing.hsadminng.hs.hosting.asset.NumericPropertyValidator.numericProperty;
+
+public class HsHostingAssetValidator {
+
+    private static final Map<HsHostingAssetType, HsHostingAssetValidator> validators = Map.ofEntries(
+            entry(HsHostingAssetType.CLOUD_SERVER, new HsHostingAssetValidator(
+                    numericProperty("CPUs").min(1).max(32).build(),
+                    numericProperty("RAM").unit("GB").min(1).max(128).build(),
+                    numericProperty("SSD").unit("GB").min(25).max(1000).step(25).build(),
+                    numericProperty("HDD").unit("GB").min(0).max(4000).step(250).build(),
+                    numericProperty("Traffic").unit("GB").min(250).max(10000).step(250).build(),
+                    enumProperty("SLA-Infrastructure").values("BASIC", "EXT8H", "EXT4H", "EXT2H").build())),
+            entry(HsHostingAssetType.MANAGED_SERVER, new HsHostingAssetValidator(
+                    numericProperty("CPUs").min(1).max(32).build(),
+                    numericProperty("RAM").unit("GB").min(1).max(128).build(),
+                    numericProperty("SSD").unit("GB").min(25).max(1000).step(25).build(),
+                    numericProperty("HDD").unit("GB").min(0).max(4000).step(250).build(),
+                    numericProperty("Traffic").unit("GB").min(250).max(10000).step(250).build(),
+                    enumProperty("SLA-Platform").values("BASIC", "EXT8H", "EXT4H", "EXT2H").build(),
+                    booleanProperty("SLA-EMail").falseIf("SLA-Platform", "BASIC").build(),
+                    booleanProperty("SLA-Maria").falseIf("SLA-Platform", "BASIC").build(),
+                    booleanProperty("SLA-PgSQL").falseIf("SLA-Platform", "BASIC").build(),
+                    booleanProperty("SLA-Office").falseIf("SLA-Platform", "BASIC").build(),
+                    booleanProperty("SLA-Web").falseIf("SLA-Platform", "BASIC").build())),
+            entry(HsHostingAssetType.MANAGED_WEBSPACE, new HsHostingAssetValidator(
+                    numericProperty("SSD").unit("GB").min(1).max(100).step(1).build(),
+                    numericProperty("HDD").unit("GB").min(0).max(250).step(10).build(),
+                    numericProperty("Traffic").unit("GB").min(10).max(1000).step(10).build(),
+                    enumProperty("SLA-Platform").values("BASIC", "EXT24H").build(),
+                    numericProperty("Daemons").min(0).max(10).build(),
+                    booleanProperty("Online Office Server").build())
+            ));
+
+    public static HsHostingAssetValidator forType(final HsHostingAssetType type) {
+        return validators.get(type);
+    }
+
+    HsHostingAssetValidator(final Validator... validators) {
+
+    }
+
+    public void validate(final HsHostingAssetEntity entityToSave) {
+    }
+}