The application was refused by East Hampshire District Council planners last September on grounds that it would have an adverse effect on the character and appearance of the detached host dwelling and would have an impact on housing choice in the area.
But government inspector Timothy King concluded that, despite an increase to the floor area equating to 94 per cent, there was no clear evidence that the resulting extension would cause any demonstrable harm to the range of dwelling sizes or housing stock in the area.
Nor did he think that the scale, character, form and appearance of the proposed work would be inappropriate to the host dwelling it would extend.