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£3,200,000
Guide price

9 bed house for sale Westmill, Hertfordshire, SG9 9LY

9 beds 5 baths House
Freehold

Added on 16/09/2026

About this property

A magnificent Grade II Listed house set in beautiful gardens with view over rolling parkland, with Queen Anne origins and sensitive 20th century redesign by Raymond Erith and Quinlan Terry. Situated on the outskirts of a picturesque and popular Hertfordshire village, The Dower House is a historic home whose architecture, interiors and gardens sit in effortless harmony. Believed to date substantially from the Queen Anne period, the east façade was sympathetically rebuilt and the interior re modelled in the 1960s by the famous architect Raymond Erith on the instruction of the then owner John Profumo achieving the graceful symmetry, light and balance that define it today.

Property type
House
Bedrooms
9
Bathrooms
5
Floor area
9,963 sq ft
Tenure
Freehold
Council tax
Band H (Approx £4,910/year)
Postcode
SG9 9LY

Key features

  • Nine bedrooms, five bathrooms and six reception rooms over three floors with two staircases, plus cellars/wine storage
  • Elegant rear suite of interconnecting reception rooms; additional library, sitting and music rooms
  • Principal suite with dressing room/bathroom; guest suite with dressing room/extra bedroom; six further bedrooms and three bathrooms across first and second floors
  • 2.71 acre gardens with historic walled garden, formal beds, lawns, fruit/veg garden, pool and tennis court; further 3.55 acre paddock
  • Extensive outbuildings including garages, barn annexe with kitchen/bathroom, pool house, greenhouse and garden sheds

Floorplan

Price guide

This home
£321 / sq ft
Area average (sold)
£452 / sq ft
Price per area, sold homes nearby
Lowest
This home
Highest

£321 per sq ft, below almost all recent sales in SG9 (£349–£560, 10th–90th percentile, 258 sales over 24 months).

Lowest and highest are the 10th and 90th percentiles of 258 homes sold in SG9 over the last 24 months. This home's figure uses its asking price.

Location

Westmill, Hertfordshire, SG9 9LY

Sold prices in SG9

HM Land Registry sales in SG9 — none recorded yet for SG9 9LY. Floor areas from Energy Performance Certificates where matched.

AddressSoldSizePrice
47, Snells Mead SG9 9JH Semi-detachedJul 20261,249 sq ft £424/sq ft£530,000
15, Downhall Ley SG9 9JT TerracedJul 2026570 sq ft £517/sq ft£295,000
41, Wyddial Road SG9 9AT Semi-detachedJul 2026958 sq ft £462/sq ft£442,500
10, Olvega Drive SG9 9FJ Semi-detachedJul 20261,141 sq ft £386/sq ft£440,000
4, Castle Cottages SG9 0BW Semi-detachedJul 2026969 sq ft £511/sq ft£495,500
11, Watson House, Parker Drive SG9 9GN Flat / maisonetteJul 2026667 sq ft £195/sq ft£130,000
Watford House SG9 9LL DetachedJul 2026£2,350,000
38, London Road SG9 9JW TerracedJul 20261,324 sq ft £465/sq ft£615,000

Area insights

The neighbourhood around this property.

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