Unfortunately this Part time BSc (Hons) Physics at UCL no longer exists, but when it did, it looked like this.
It ran over four years, three evenings per week. Two and a half modules were taken per year in years one and two, and three modules per year in years three and four, making a total of eleven modules.
It compared quite favourably to the full time BSc (Hons) Physics course at UCL, which still runs today. 12 modules are required for this degree.
Note that for the part time degree, four and half modules were taken at level 3, compared with four for the full time equivalent. The full time degree programme has more module choice at levels 2 and 3, which isn't shown above.