Anyo\u00adne who owns a detached house is fami\u00adli\u00adar with the pro\u00adblem: when asses\u00adsing the pro\u00adper\u00adty for coun\u00adcil tax pur\u00adpo\u00adses, the tax office uses a figu\u00adre for living space that the owner con\u00adsiders to be too high. A recent ruling by the Ber\u00adlin-Bran\u00adden\u00adburg Tax Court makes it clear that not every base\u00adment room is auto\u00adma\u00adti\u00adcal\u00adly to be clas\u00adsi\u00adfied as living space.<\/p>\n\n\n\n
The pro\u00adcee\u00addings con\u00adcer\u00adned the valua\u00adti\u00adon of a detached house for the pur\u00adpo\u00adses of pro\u00adper\u00adty tax. It was undis\u00adpu\u00adted that the abo\u00adve-ground living space amoun\u00adted to appro\u00adxi\u00adm\u00adate\u00adly 147 squa\u00adre met\u00adres. The base\u00adment, which was enti\u00adre\u00adly under\u00adground, also con\u00adtai\u00adned a room mea\u00adsu\u00adring 26.44 squa\u00adre met\u00adres. This room had a clear height of 2.10 met\u00adres, was heata\u00adble and had a small win\u00addow which allo\u00adwed day\u00adlight and fresh air in only via a bar\u00adred light well. The room was used as a storeroom.<\/p>\n\n\n\n
The tax office sim\u00adply included this base\u00adment room in the living space, arri\u00adving at a total area of 173 squa\u00adre met\u00adres. The owners suc\u00adcessful\u00adly chal\u00adlen\u00adged this decision.<\/p>\n\n\n\n
The Ber\u00adlin-Bran\u00adden\u00adburg Finan\u00adce Court cla\u00adri\u00adfied that the Resi\u00adden\u00adti\u00adal Flo\u00ador Area Ordi\u00adnan\u00adce (WoFlV) is the gover\u00adning legis\u00adla\u00adti\u00adon for cal\u00adcu\u00adla\u00adting living space under the stan\u00addar\u00addi\u00adsed inco\u00adme approach. Under this Regu\u00adla\u00adti\u00adon, base\u00adment rooms that have not been con\u00adver\u00adted for per\u00adma\u00adnent resi\u00adden\u00adti\u00adal use are regard\u00aded as so-cal\u00adled ancil\u00adla\u00adry rooms. The\u00adse are excluded from the cal\u00adcu\u00adla\u00adti\u00adon of living space.<\/p>\n\n\n\n
In this spe\u00adci\u00adfic case, the base\u00adment room lacked the neces\u00adsa\u00adry faci\u00adli\u00adties for resi\u00adden\u00adti\u00adal use: the\u00adre was no flo\u00ador cove\u00adring, and the ven\u00adti\u00adla\u00adti\u00adon and natu\u00adral light were ina\u00adde\u00adqua\u00adte. The court the\u00adr\u00ade\u00adfo\u00adre clas\u00adsi\u00adfied it as a typi\u00adcal ancil\u00adla\u00adry room, which is not to be included in the living space. The hig\u00adher flo\u00ador area asses\u00adsed by the tax office was the\u00adr\u00ade\u00adfo\u00adre incorrect.<\/p>\n\n\n\n
Under the Valua\u00adti\u00adon Act, detached hou\u00adses are valued using the stan\u00addar\u00addi\u00adsed inco\u00adme approach. The pro\u00adper\u00adty tax value is cal\u00adcu\u00adla\u00adted on the basis of the capi\u00adta\u00adli\u00adsed net yield and the dis\u00adcoun\u00adted land value. The net yield depends, among\u00adst other things, on the living area. The lar\u00adger the asses\u00adsed living area, the hig\u00adher the pro\u00adper\u00adty tax value tends to be, and con\u00adse\u00adquent\u00adly the hig\u00adher the tax burden.<\/p>\n\n\n\n
This decis\u00adi\u00adon has prac\u00adti\u00adcal impli\u00adca\u00adti\u00adons for all owners of detached hou\u00adses or flats whe\u00adre the tax office has included base\u00adment rooms in the cal\u00adcu\u00adla\u00adti\u00adon of living space. Anyo\u00adne who has recei\u00adved such a noti\u00adce should check whe\u00adther the living space used as a basis is cor\u00adrect. The decisi\u00adve fac\u00adtors here are not mere\u00adly the cei\u00adling height or whe\u00adther the room can be hea\u00adted, but the room\u2019s over\u00adall fit\u00adtings and its actu\u00adal sui\u00adta\u00adbi\u00adli\u00adty as living space.<\/p>\n\n\n\n
If a base\u00adment room is used sole\u00adly as a sto\u00adrage room or warehouse and lacks pro\u00adper flo\u00ado\u00adring as well as ade\u00adqua\u00adte ven\u00adti\u00adla\u00adti\u00adon and natu\u00adral light, it is unli\u00adkely to be clas\u00adsi\u00adfied as living space under cur\u00adrent legislation.<\/p>\n\n\n\n
The jud\u00adge\u00adment of the Ber\u00adlin-Bran\u00adden\u00adburg Finan\u00adce Court was han\u00added down on 3 March 2026 under case num\u00adber 3 K 3118\/25. In indi\u00advi\u00addu\u00adal cases, it is advi\u00adsa\u00adble to seek tax advice in order to check your own pro\u00adper\u00adty tax assess\u00adment for any errors.<\/p>\n\n\n\n