About £454,000 buys the typical Streatham sale. Most of what sells is a flat. Houses cost a great deal more. Prices have slipped a little over the past year. The headline number is mostly a flat's number, and anyone after a house has a bigger one coming.
The Land Registry recorded 691 sales in the year to May 2026, at a median of about £454,000. Flats made up 399 of them, at a median of around £380,000. The 212 terraced houses went for about £648,000, the 70 semis for about £881,000, and the 10 detached houses for about £975,000. That gap between flat and terrace is where most Streatham house hunts get decided, usually on the walk back to Streatham Hill station.
The official house price index for the area put the average at about £545,000 in May 2026, down about 3% on a year earlier, with flats down a bit further at about 4%. Over five years the index is down about 7%. Those are modest, published moves, and the merchants who came to Streatham for the healing spring water would note the market could use a glass.
Band C is the most common council tax band, and about 16% of homes sit in Bands A or B. A Band D home in Lambeth pays about £2,050 a year, which is the figure to hold against your current bill.
For renters, the borough-wide picture is the only one available: typical private rent across Lambeth runs about £2,530 a month as of April 2026, a mean from the official rent index and up about 7% on a year earlier. By size, that is about £1,880 for a one-bed, £2,350 for a two-bed, £2,680 for a three-bed and £3,730 for four bedrooms or more, all Lambeth-wide.
The Office for National Statistics models gross household income, before tax, at about £73,400 a year across Streatham's neighbourhoods for the financial year to March 2023. Against a median sale of around £454,000, a typical household can look at a flat here with a straight face and at a semi only while sitting down.
Of the sales that could be matched to an energy certificate's floor area, about 60% of them, the median price was around £6,250 per square metre, for a typical home of about 98 square metres. On any particular flat, the floor area on its energy certificate lets you set the asking price against that £6,250 yourself.
At the 2021 Census about 20% of homes had one bedroom, 29% had two, 29% had three and 22% had four or more. The three-bed terrace was Streatham's Edwardian default, and the two-bed flat is mostly what happened when someone later split one in half.
Streatham's prices are middling for south London. A flat is within reach, and a house is a long way past the median.