How much do flats cost in SW1Y?

The median flat sale price in SW1Y over the last 12 months was £988k (about £16,875 per square metre), from 6 recorded sales.

What is the price per square metre in SW1Y?

Typical sale prices per square metre in SW1Y are £0 for houses and £16,875 for flats, where floor area is recorded on the energy certificate.

What EPC rating do homes in SW1Y have?

Homes in SW1Y most commonly hold EPC band C, with a median current energy-efficiency score of 69 (a potential of 78 after improvements).

How many properties sold in SW1Y in the last year?

6 properties were sold in SW1Y over the last 12 months, and 18 over the last three years (HM Land Registry Price Paid data).

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AREA REPORT · CITY OF WESTMINSTER SW1Y

SW1Y.

City of Westminster

SW1Y is an outcode in City of Westminster, covering the neighbourhoods of Strand, St James & Mayfair. Over the last 12 months 6 properties changed hands — a median of £988k for flats (£16,875/sqm) and — for houses (£0/sqm). Housing stock peaks at EPC band C. Residential coverage is low here — only 13% of addresses are matched to residential records; the rest are commercial or institutional, so sale counts read very low.

Recorded dwellings

511

residential addresses we hold records for

Across

sectors — see breakdown below

Sales

12 month

3 year

Flats

Houses

Recorded transactions across the area.

Median sale price

12 month

3 year

Flats

£988k

n = 6

£1.17m

n = 18

Houses

—

n = 0

—

n = 0

Median sale price across the window.

Median £/sqm

12 month

3 year

Flats

£16,875

n = 5

£16,960

n = 14

Houses

—

n = 0

—

n = 0

Typical price per square metre, where floor area is available.

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PRICE MATRIX

Sales by window, type, and floor area.

Headline price

Mean

Houses

·Limited data

— vs 12m

— vs 3y

Flats

·Stabilising

0.0% vs 12m

−15.6% vs 3y

Bar height = median sale price. Tick = mean. Trend word reads the joint state of the 6m-vs-12m and 6m-vs-3y tiers.

Size-normalised — £ per sqm

Mean

Houses

·Limited data

— vs 12m

— vs 3y

Flats

·Holding

0.0% vs 12m

−0.5% vs 3y

From EPC-matched floor area. Hatched bars mark windows where fewer than 60% of sales matched a certificate.

›Show numbers

Segment

Avg £

Median £

Avg £/sqm

Median £/sqm

Houses · 6m

Avg £

—

n=0

Median £

—

n=0

Avg £/sqm

£0

n=0

Median £/sqm

£0

n=0

Houses · 12m

Avg £

—

n=0

Median £

—

n=0

Avg £/sqm

£0

n=0

Median £/sqm

£0

n=0

Houses · 3y

Avg £

—

n=0

Median £

—

n=0

Avg £/sqm

£0

n=0

Median £/sqm

£0

n=0

Flats · 6m

Avg £

£1.01m

n=4

Median £

£988k

n=4

Avg £/sqm

£16,827

n=3

Median £/sqm

£16,875

n=3

Flats · 12m

Avg £

£1.43m

n=6

Median £

£988k

n=6

Avg £/sqm

£16,010

n=5

Median £/sqm

£16,875

n=5

Flats · 3y

Avg £

£1.97m

n=18

Median £

£1.17m

n=18

Avg £/sqm

£16,039

n=14

Median £/sqm

£16,960

n=14

PRICE + VOLUME · 25Y

Medians and monthly sales, 2001–present.

EPC · 25Y

Certificates issued, by band.

Median EPC score

Median potential

COUNCIL TAX

Band distribution.

Column width shows the number of properties in each council tax band. Colour shows the composition within that band.

Band A

Band B

Flats/maisonettes

Band C

Flats/maisonettes

Band D

119

Flats/maisonettes

Band E

460

Flats/maisonettes

Band F

793

Flats/maisonettes

Band G

1,082

Flats/maisonettes

Terraced

Band H

1,487

Band I

Flats/maisonettes

Terraced houses

Other/unknown

Property type totals

Flats/maisonettes

3,499

89%

Terraced houses

182

4.6%

Other/unknown

237

6.0%

AMENITIES

Transport access and schools.

Counts of public transport stop points and schools inside the outcode (or within ~100m of the boundary). Drill into a sector for the full stop-by-stop list.

Rail stations

Metro & tram

Bus & coach

Bus stops

Schools

SECTORS

Drill down to sector.

Drill in

Open the full report for any SW1Y sector.

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Sector

Sales (3y)

Median house

Median flat

COVERAGE

Neighbourhoods and wards.

Neighbourhoods (MSOA)

1 · click column to sort

Strand, St James & Mayfair

877

523

Wards

1 · click column to sort

St James's

877

523

NEARBY OUTCODES

Nearby outcodes.

FAQ

SW1Y property data — common questions

How much do flats cost in SW1Y?: The median flat sale price in SW1Y over the last 12 months was £988k (about £16,875 per square metre), from 6 recorded sales.
What is the price per square metre in SW1Y?: Typical sale prices per square metre in SW1Y are £0 for houses and £16,875 for flats, where floor area is recorded on the energy certificate.
What EPC rating do homes in SW1Y have?: Homes in SW1Y most commonly hold EPC band C, with a median current energy-efficiency score of 69 (a potential of 78 after improvements).
How many properties sold in SW1Y in the last year?: 6 properties were sold in SW1Y over the last 12 months, and 18 over the last three years (HM Land Registry Price Paid data).

REFRESHED 11 JUN 2026 ·DATA & SOURCES