Trusteel Trusteel MKII Bungalows in Cheltenham

Good morning! - I can't seem to find any information about the many Trusteel MKII bungalows built in Cheltenham (specifically Up Hatherley) during the 1960s.

I have found lots of info about other Trusteel properties in other locations - and generally houses, not bungalows.

Would anybody be able to kindly point me in the right direction to learn more about the Cheltenham bungalows?

I think many of these were privately owned from new rather than local authority.

Thank you!