Portsmouth is home to University of Portsmouth. Across the whole market, a typical rental grosses 6.3% a year: the official average rent of £1,367 a month (ONS) against a £260,000 median sold price (HM Land Registry). Student shares usually beat the whole-market figure per room, but they also carry the most rules, so the numbers below are the floor, not the ceiling.
"Median room" is the advertised rate for a room in a shared house here, from 68 live listings in our room rents data. No official source tracks room-level rents.
HMO licensing. Five or more sharers from different households means a mandatory HMO licence, anywhere in England and Wales. Many councils also run additional licensing that catches smaller shares.
Article 4 directions. In many student areas the council has removed the right to convert a family home into a small HMO without full planning permission, and those applications are routinely refused. Article 4 applies street by street: two identical terraces a road apart can have opposite answers, which is why a city average can never tell you whether a specific house works as a student let.
A gemhome check on the exact address includes its planning designations, including whether it sits in an Article 4 area, alongside yield, EPC works and the lender stress test.