The median advertised room in a shared house in Portsmouth is £650 a month, and half of all rooms sit between £600 and £730. Measured from 68 live listings on 2026-08-09. No official statistics track what a room costs, so we do.
Sharing saves about £250 a month against the official average one-bed in Portsmouth (£900, ONS) before bills, so roughly £3,000 a year.
69% of rooms accept students. A meaningful slice of the market filters students out, so start looking early and have your guarantor ready.
The middle option. Studios here run about £850 a month: between a £650 room and a £900 one-bed, for a front door of your own.
Paste the listing into the free student rent check and get a verdict for that exact address: whether the rent is fair for the street, how far it is from campus, and the area basics nobody puts in the advert.