SW16 vs W1K: house prices per square metre compared
SW16 (Streatham) has a median of £6,250 per m² against £25,000 in W1K (Mayfair). W1K is the more expensive of the two: SW16 is 75.0% cheaper per m². The figures come from 706 matched sales in SW16’s last 12 months and 41 in W1K’s last 24 months of HM Land Registry data.
£4,085,000, the median sale price in W1K, buys about 163 m² there and about 654 m² in SW16, a difference of 491 m² at each district’s own median.
SW16 over its last 12 months, W1K over its last 24.
| Measure | SW16High confidence Streatham, London £6,250median per m² | W1KLow confidence Mayfair, London £25,000median per m² | Difference |
|---|---|---|---|
| Median price per m² | £6,250 | £25,000 | +300.0% |
| Median sale price | £465,000 | £4,085,000 | +778.5% |
| Middle 60% of salesp20 to p80 | £5,270–£7,430 | Too few matched sales | |
| Sales (each area's own window) | 748 | 53 | n/a |
| With a matched floor areaThe denominator behind each median per unit area | 706 | 41 | n/a |
| Mean floor area (matched sales) | 90 m² | 180 m² | +100.3% |
| Annual change over 9.8 years | +0.8% a year | n/a | n/a |
| By property typeMedian price per m² for each property type, over each area's own sales window. | |||
| Semi-detached | £6,080n = 78 | no sales | n/a |
| Terraced | £6,260n = 221 | no sales | n/a |
| Flat | £6,330n = 396 | £25,000n = 35 | +294.9% |
| Difference: SW16 minus W1K. | |||
| All SW16 sold prices | All W1K sold prices |
Each trend line is that district’s own quarterly median price per square metre, scaled to its own range: compare directions, not heights. Gaps are quarters with too few matched sales to publish a median.
Frequently asked questions
Why compare SW16 and W1K on price per square metre rather than price?
A raw sale price mostly reflects how big homes are; price per square metre corrects for size, so SW16 and W1K can be compared on what a buyer actually gets for the money. Both figures here are medians of sold price divided by EPC floor area, from HM Land Registry sales, computed the same way for both areas.
Why do SW16 and W1K show different numbers of sales?
The two districts are different sizes and trade at different rates, and each figure is computed over the matched sales its own area produced in its stated window. The matched-sale count is printed beside each median because it is that median's own denominator.
Compare other areas
Or browse the league tables for the most expensive and best value districts, every comparison page, or the free dataset behind these figures.
Contains HM Land Registry data © Crown copyright and database right 2026 · Licensed under the Open Government Licence v3.0 · Floor areas from the Energy Performance of Buildings Register · how these figures are made