No not Iwama. It's more based on Ki Aikido than anything else.I'm just a small independant leaf ha, ha. A student of mine is now training at an Iwama dojo as he moved a year ago and found one nearby. I believe it is somewhere near Dunstable. I think the dojo nearby in Hampstead is an Iwama dojo too. 0ne mile the other direction in Muswell hill there's a Ki Aikido one and one mile in another direction nearer Archway there is another, don't know what style though.
Again not too far from you was where I trained for 15 years in Watford, in fact more garston/north watford and they're still going now. Half a mile from them on an old air force base in Bushey is a Yoshinkan Dojo, they often came to visit us.
There's another one not far from you in Pinner.
Confused? Ha, ha. There's too many to mention.
Another independant club I used to take people to visit was also just down the road from you in Edgeware, off whitchurch lane, and they were more Iwama influenced too. Unfortunately I heard recently that the teacher died a few years ago but I assume his son took over. I must pay them a visit soon if they are still there.
Anyway, enough gossip.