sorry, forgot to come back and read all your comments.
Alonglongway, I didn't got to planning committee, it was a planning officer who made the decision.
Gingeroots, we did try that angle, i.e. we're making a house currently not very suitable for families as it only has a shower room in to a house that is much more suited. It didn't seem to make any difference.
namechangedtoday - I would normally agree with you that the architect may be looking to cast the blame anywhere but him, but an almost identical design by him on another property was granted PP, which presumably legitimises his design.
newname - I'm not sure if the other property had a different planning officer, but given it was the same architect I doubt the relationship with architect has with the planning officers would have much influence as it's not that big an office. I could be wrong, but I would hope they wouldn't allow personal feelings towards someone to influence their decisions. I'd be pretty hacked off if that was the case, and be seeking some kind of compensation. Of course that's pretty hard to prove.
seeline - as I understand it, only two people were involved in the decision at the LA planning dept stage, the case officer and then his superior. The case officer makes the decision but then runs it past his boss to get approval of his decision.
Merrylegs - we have had a planning consultant working with us since we were turned down. The planning consultant did the appeal document for us.
I've since had a meeting with our architect and he's going to do some preliminary sketches for an alternative design, which to me sounds a much more dramatic change. Currently the gable end of the roof faces the road while the properties either side have their roofs pitched differently with the gable end at the side. The planning officer said that because the gable end faces the road, raising it 1.2m would make the houses unacceptably dominant (we contest this as currently the houses are quite squat, lower than the surrounding houses and the small amount we'd raise them wouldn't make them any more dominant than houses in the immediate vicinity - the road slopes up away from our house and the houses three and four doors down are far more dominant because of their raised position) However, the architect's genius idea (??) is to change the pitch of the roof so that it slopes away from the road, with the gable ends at the side and velux windows to the front and dormers at the back. That to me seems far more drastic, but the architect is adamant as we're not in a conservation area, the planners are less concerned about maintaining the houses in the state they were originally built, but more with the look of them once the work is done.
I have no idea if he's right... seems bonkers to me, but I'm prepared to try everything. Given we were going to have to lift the roof off to do the original design, lifting it off and repositioning it might not be so different?