This post shows some of their earlier buildings – little terraced cottages along Kilburn Lane in Queen's Park, London W10, built in 1876.
Note how the end of each terrace had a corner shop. Directly opposite these shops is a collection of buildings that looks like there was either a school or a dairy there. I don't know if these were also part of ALGDC. This needs further investigation – I will add it to the list/pile.
If you know anything about any of these buildings, including the ones over the road, please do let me know.
Thanks in advance.