4 bed flat for sale Hereford House, 66 North Row, Mayfair, London, W1K 7DE

4 beds 3 baths Penthouse

Leasehold

Added on 31/08/2026

About this property

Positioned on the seventh and eighth floors of an iconic 1930s portered residence, just moments from Hyde Park, this exceptional 3,200 sq.ft. lateral penthouse offers scale, light and privacy in one of London’s most prestigious postcodes.

Arranged across two floors, the principal level opens into a generous entrance hall leading to a fully equipped dine in kitchen and an elegant dining room with period fireplace. Three substantial double bedrooms each benefit from large en suite bathrooms, including a refined principal suite with its own private south facing terrace.

Property type: Penthouse
Bedrooms: 4
Bathrooms: 3
Floor area: 3,197 sq ft
Tenure: Leasehold
Council tax band: Ask agent
Postcode: W1K 7DE

Floorplan

Price guide

This home

£2,111 / sq ft

Area average (sold)

£2,846 / sq ft

Price per area, sold homes nearby

£1,723 / sq ft

£2,111 / sq ft

£4,685 / sq ft

Lowest

This home

Highest

£2,111 per sq ft — below the middle of recent sales in W1K (£1,723–£4,685, 10th–90th percentile, 42 sales over 24 months).

Lowest and highest are the 10th and 90th percentiles of 42 homes sold in W1K over the last 24 months. This home's figure uses its asking price. All sold £/sq ft in W1K →

Location

Hereford House, 66 North Row, Mayfair, London, W1K 7DE

Open map Street View

Sold prices in W1K 7DE

HM Land Registry sales in W1K 7DE. Floor areas from Energy Performance Certificates where matched.

Address	Type	Sold	Size	Size	£/sq ft	Price
Flat 32, Hereford House, North Row Flat / maisonette	Flat / maisonette	Dec 2024	2,390 sq ft £1,883/sq ft	2,390 sq ft	£1,883	£4,500,000
Flat 34, Hereford House, North Row Flat / maisonette	Flat / maisonette	Apr 2024	2,874 sq ft £1,809/sq ft	2,874 sq ft	£1,809	£5,200,000
Flat 40, Hereford House, North Row Flat / maisonette	Flat / maisonette	Sept 2023	2,465 sq ft £2,272/sq ft	2,465 sq ft	£2,272	£5,600,000
Flat 32, Hereford House, North Row Flat / maisonette	Flat / maisonette	Aug 2021	2,390 sq ft £1,674/sq ft	2,390 sq ft	£1,674	£4,000,000
Flat 28, Hereford House, North Row Flat / maisonette	Flat / maisonette	Oct 2018	2,928 sq ft £2,562/sq ft	2,928 sq ft	£2,562	£7,500,000
Flat 26, Hereford House, North Row Flat / maisonette	Flat / maisonette	Jul 2013	—	—	—	£5,750,000
Flat 24, Hereford House, North Row Flat / maisonette	Flat / maisonette	Jun 2013	2,088 sq ft £2,873/sq ft	2,088 sq ft	£2,873	£6,000,000
Flat 28, Hereford House, North Row Flat / maisonette	Flat / maisonette	Jun 2012	2,928 sq ft £2,528/sq ft	2,928 sq ft	£2,528	£7,400,000