Hill training

Anyone know any good spots for hill training? Need a ~250m long hill with a decent incline. I know Gog Magog is hilly, but given how dark the evenings are I would much prefer something with street lighting (due to my work I am mostly limited to evening runs). I know it’s wishful thinking being in Cambridge, but if anyone has any suggestions I would be very grateful!

ETA: I have access to a car, but needing to drive to a run tends to put me off. So something that can be accessed from the city by foot is preferable, but not essential.