diff --git a/api/methods.py b/api/methods.py
index c41c699..75ada88 100644
--- a/api/methods.py
+++ b/api/methods.py
@@ -813,6 +813,7 @@ SELECT
   id
   ,description
   ,premise
+  ,area
   FROM commercial_premise_t
   ORDER BY
     premise
@@ -827,21 +828,25 @@ def insert_commercial_premise(user, token_info, **args):
     body = args["body"]
     v_description = body["description"]
     v_premise = body["premise"]
+    v_area = body["area"]
     return dbInsert(user, token_info, {
       "statement": """
 INSERT INTO commercial_premise_t
   (
     description
     ,premise
+    ,area
   ) VALUES (
     %s
     ,%s
+    ,%s
   )
   RETURNING *
 """,
       "params": [
     v_description
     ,v_premise
+    ,v_area
       ]      
     })
   except KeyError as e:
@@ -856,6 +861,7 @@ SELECT
   id
   ,description
   ,premise
+  ,area
   FROM commercial_premise_t
   WHERE id = %s
                          """, 
@@ -868,18 +874,21 @@ def update_commercial_premise(user, token_info, commercial_premiseId=None, **arg
     body = args["body"]
     v_description = body["description"]
     v_premise = body["premise"]
+    v_area = body["area"]
     return dbUpdate(user, token_info, {
       "statement": """
 UPDATE commercial_premise_t
   SET
     description = %s
     ,premise = %s
+    ,area = %s
   WHERE id = %s
   RETURNING *
 """,
       "params": [
     v_description,
     v_premise,
+    v_area,
     commercial_premiseId
       ]      
     })
@@ -895,6 +904,7 @@ SELECT
   id
   ,description
   ,premise
+  ,area
   FROM commercial_premise_t
   WHERE premise = %s
   ORDER BY
diff --git a/api/openapi.yaml b/api/openapi.yaml
index 34fa233..a203e1e 100644
--- a/api/openapi.yaml
+++ b/api/openapi.yaml
@@ -1714,6 +1714,9 @@ components:
         premise:
           type: integer
           nullable: true
+        area:
+          type: number
+          nullable: true
     tenancy:
       description: tenancy
       type: object
diff --git a/cli/OverheadAccounts.py b/cli/OverheadAccounts.py
index 63b1684..b815466 100644
--- a/cli/OverheadAccounts.py
+++ b/cli/OverheadAccounts.py
@@ -1,6 +1,7 @@
-from db import dbGetMany
+from db import dbGetMany, dbGetOne
 import datetime
 from loguru import logger
+from decimal import *
 
 def perform(dbh, params):
     try:
@@ -12,42 +13,6 @@ def perform(dbh, params):
     premises = (1, 2)
 
 
-    # get flat tenants by object and timespan with paid overhead and due overhead
-    tenants = dbGetMany(
-        dbh,
-        {
-            "statement":
-            """
-                select t.id as tenant_id,
-                    t.firstname as tenant_firstname,
-                    t.lastname as tenant_lastname,
-                    f.id as flat_id,
-                    f.description as flat,
-                    p.id as house_id,
-                    p.description as house,
-                    ty.startdate as startdate,
-                    ty.enddate as enddate
-                from tenant_t t,
-                    premise_t p,
-                    flat_t f,
-                    tenancy_t ty
-                where ty.tenant = t.id and
-                    ty.flat = f.id and
-                    ty.startdate >= %(startDate)s and
-                    (ty.enddate <= %(endDate)s or ty.enddate is null) and
-                    f.premise = p.id and
-                    p.id in %(premises)s
-                order by house_id, tenant_id
-            """,
-           "params": {
-               "startDate": startDate, 
-               "endDate": endDate,
-               "premises": premises
-           }
-        }
-    )
-    logger.info(f"{tenants=}")
-
 
     # get overhead sums by object, category and timespan
     overheadSums = dbGetMany(
@@ -86,6 +51,13 @@ def perform(dbh, params):
                     created_at between %(startDate)s and %(endDate)s and
                     p.id in %(premises)s
                 group by house_id, house, category
+                union
+                select 120 as sum,
+                    'Waschmaschine' as category,
+                    id as house_id,
+                    description as house
+                from premise_t
+                where id in %(premises)s
                 order by house_id, category
             """,
             "params": {
@@ -95,7 +67,106 @@ def perform(dbh, params):
             }
         } 
     )
-    logger.info(f"{overheadSums=}")
+    # logger.info(f"{overheadSums=}")
+    for overheadSum in overheadSums:
+        logger.info(f"house: {overheadSum['house']}, category: {overheadSum['category']}, sum: {overheadSum['sum']}")
+
+    subtotal = {}
+    for premise in premises:
+        v = [ x['sum'] for x in overheadSums if x['house_id'] == premise ]
+        logger.info(f"{v=}")
+        subtotal[premise] = sum(v)
+        logger.info(f"{subtotal=}")
+
+
+
+
+    # get flat tenants by object and timespan with paid overhead and due overhead
+    tenants = dbGetMany(
+        dbh,
+        {
+            "statement":
+            """
+                select t.id as tenant_id,
+                    t.firstname as tenant_firstname,
+                    t.lastname as tenant_lastname,
+                    f.id as flat_id,
+                    f.description as flat,
+                    p.id as house_id,
+                    p.description as house,
+                    ty.startdate as startdate,
+                    ty.enddate as enddate,
+                    t.account as tenant_account
+                from tenant_t t,
+                    premise_t p,
+                    flat_t f,
+                    tenancy_t ty
+                where ty.tenant = t.id and
+                    ty.flat = f.id and
+                    ty.startdate <= %(startDate)s and
+                    (ty.enddate >= %(endDate)s or ty.enddate is null) and
+                    f.premise = p.id and
+                    p.id in %(premises)s
+                order by house_id, tenant_id
+            """,
+           "params": {
+               "startDate": startDate, 
+               "endDate": endDate,
+               "premises": premises
+           }
+        }
+    )
+
+    for tenant in tenants:
+        logger.info(f"firstname: {tenant['tenant_firstname']}, lastname: {tenant['tenant_lastname']}, house: {tenant['house']}, account: {tenant['tenant_account']}")
+
+        paidTotal = dbGetOne(
+            dbh,
+            {
+                "statement":
+                """
+                    SELECT sum(amount) AS sum,
+                        count(id) AS cnt
+                    FROM account_entry_t
+                    WHERE account = %(account)s AND
+                        account_entry_category = 2 AND
+                        due_at BETWEEN %(startDate)s AND %(endDate)s
+                """,
+                "params": {
+                    "account": tenant['tenant_account'],
+                    "startDate": startDate,
+                    "endDate": endDate
+                }
+            }
+        )
+        receivableFee = dbGetOne(
+            dbh,
+            {
+                "statement":
+                """
+                    SELECT sum(amount) * -1 AS sum ,
+                        count(id) AS cnt
+                    FROM account_entry_t
+                    WHERE account = %(account)s AND
+                        account_entry_category = 3 AND
+                        due_at BETWEEN %(startDate)s AND %(endDate)s
+                """,
+                "params": {
+                    "account": tenant['tenant_account'],
+                    "startDate": startDate,
+                    "endDate": endDate
+                }
+            }
+        )
+
+        logger.info(f"Payments:        cnt: {paidTotal['cnt']}, sum: {paidTotal['sum']}")
+        logger.info(f"Receivable fees: cnt: {receivableFee['cnt']}, sum: {receivableFee['sum']}")
+        
+        paidOverheadAdvance = paidTotal['sum'] - receivableFee['sum']
+        logger.info(f"Paid overhead:   {paidOverheadAdvance} (by month: {paidOverheadAdvance / Decimal(12)})")
+
+
+
 
 
 
diff --git a/cli/db.py b/cli/db.py
index 7a0234a..b9fe284 100644
--- a/cli/db.py
+++ b/cli/db.py
@@ -21,7 +21,7 @@ def execDatabaseOperation(dbh, func, params):
 
 
 def _opGetMany(cursor, params):
-    logger.warning(f"{params=}")
+    #logger.warning(f"{params=}")
     items = []
     cursor.execute(params["statement"], params["params"])
     for itemObj in cursor:
diff --git a/schema.json b/schema.json
index 5da984a..36bd926 100644
--- a/schema.json
+++ b/schema.json
@@ -79,7 +79,8 @@
             "name": "commercial_premise",
             "columns": [
                 { "name": "description", "sqltype": "varchar(128)", "selector": 1 },
-                { "name": "premise", "sqltype": "integer", "foreignkey": true, "selector": 0 }
+                { "name": "premise", "sqltype": "integer", "foreignkey": true, "selector": 0 },
+                { "name": "area", "sqltype": "numeric(10,2)", "notnull": false }
             ],
             "tableConstraints": [ 
                 "unique(description, premise)"
diff --git a/schema/create.sql b/schema/create.sql
index 288dc4b..2f0f708 100644
--- a/schema/create.sql
+++ b/schema/create.sql
@@ -91,6 +91,7 @@ CREATE TABLE commercial_premise_t (
   id serial not null primary key
   ,description varchar(128) 
   ,premise integer   references premise_t (id) 
+  ,area numeric(10,2) 
   ,unique(description, premise)
 );
 
diff --git a/ui/hv2-ui/src/app/commercial-unit-details/commercial-unit-details.component.html b/ui/hv2-ui/src/app/commercial-unit-details/commercial-unit-details.component.html
index 78a04c6..3d9efe7 100644
--- a/ui/hv2-ui/src/app/commercial-unit-details/commercial-unit-details.component.html
+++ b/ui/hv2-ui/src/app/commercial-unit-details/commercial-unit-details.component.html
@@ -22,6 +22,10 @@
                                 <mat-option *ngFor="let p of premises" [value]="p.id">{{p.description}}</mat-option>
                             </mat-select>
                         </mat-form-field>
+                        <mat-form-field appearance="outline">
+                            <mat-label>Fläche</mat-label>
+                            <input type="number" matInput name="area" [(ngModel)]="commercialPremise.area"/>
+                        </mat-form-field>
                     </div>
                     <button #submitButton type="submit" mat-raised-button color="primary">Speichern</button>
                 </form>
diff --git a/ui/hv2-ui/src/app/data-objects.ts b/ui/hv2-ui/src/app/data-objects.ts
index d27caa2..a7946a3 100644
--- a/ui/hv2-ui/src/app/data-objects.ts
+++ b/ui/hv2-ui/src/app/data-objects.ts
@@ -119,11 +119,13 @@ export interface CommercialPremise {
     id: number
     description: string
     premise: number
+    area: number
 }
 export const NULL_CommercialPremise: CommercialPremise = {
     id: 0
     ,description:   ''
     ,premise:   undefined
+    ,area:   undefined
 }
 
 export interface Tenancy {
diff --git a/ui/hv2-ui/src/app/my-commercial-units/my-commercial-units.component.html b/ui/hv2-ui/src/app/my-commercial-units/my-commercial-units.component.html
index f061f1b..6a8cd3a 100644
--- a/ui/hv2-ui/src/app/my-commercial-units/my-commercial-units.component.html
+++ b/ui/hv2-ui/src/app/my-commercial-units/my-commercial-units.component.html
@@ -19,8 +19,13 @@
                         <th mat-header-cell *matHeaderCellDef>Haus</th>
                         <td mat-cell *matCellDef="let element">{{element.premise.description}}</td>
                     </ng-container>
+                    <ng-container matColumnDef="area">
+                        <th mat-header-cell *matHeaderCellDef>Fläche</th>
+                        <td mat-cell *matCellDef="let element">{{element.commercialPremise.area | number:'1.2-2'}}</td>
+                    </ng-container>
                     <tr mat-header-row *matHeaderRowDef="displayedColumns"></tr>
                     <tr mat-row *matRowDef="let row; columns: displayedColumns;" [routerLink]="['/commercialunit/', row.commercialPremise.id]"></tr>
+
                 </table>
             </div>
         </mat-card-content>
diff --git a/ui/hv2-ui/src/app/my-commercial-units/my-commercial-units.component.ts b/ui/hv2-ui/src/app/my-commercial-units/my-commercial-units.component.ts
index 3cf6ecf..d29e989 100644
--- a/ui/hv2-ui/src/app/my-commercial-units/my-commercial-units.component.ts
+++ b/ui/hv2-ui/src/app/my-commercial-units/my-commercial-units.component.ts
@@ -21,7 +21,7 @@ export class MyCommercialUnitsComponent implements OnInit {
   dnCommercialPremises: DN_CommercialPremise[] = []
 
   dataSource: MatTableDataSource<DN_CommercialPremise>
-  displayedColumns: string[] = ["description", "premise"]
+  displayedColumns: string[] = ["description", "premise", "area"]
 
   constructor(
     private commercialPremiseService: CommercialPremiseService,