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Get startedMarshfield House is a detached house in Barton St. David, Somerton, Somerton (TA11 6DF). It has a recorded floor area of 160 m² (around 1722 sq ft) and construction records dating it to before 1900. The latest certificate (April 2025) shows an F (score 34), near the bottom of the EPC scale. The recommended improvements would lift it to B (score 83), a 4-band jump. Main heating runs on oil.
Held since December 1999 — that's 26 years off the open market, well above the local norm. Sale prices here have outpaced England HPI: 4.7% per year against 0% for the wider region. Today's modelled estimate of £500,000 sits 212.5% above the 1999 sale of £160,000. On a £-per-square-foot basis, the last sale (£93/sq ft) was about 57.5% below the postcode norm. At 160 m² the property is well over the postcode median (118 m² across 13 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 85% of similar EPCs). 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved.
Marshfield House's carbon output runs well above what efficient homes in the postcode produce.
Multiple extension applications run across more than a decade of planning history at Marshfield House.
Extension: Single storey · Front of property
Erection of single storey front extension and first floor side extension to dwelling.
Marshfield House's estimated value is more than triple its earliest registered sale price (1995).
£500,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.7% per year over 5 years.
£160,000
Growth on file: 4.7% per year over 5 years.
Marshfield House is notably below the street on price per m².
Price per m²
£1,000
Street avg £2,189
Floor Area
160 m²
Street avg 160 m²
Habitable Rooms
6 rooms
Street avg 7 rooms
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.5 km

Daytime· 07:00 – 23:00
43.3dB

The erection of a dormer extension
17 December 1999Most recent
£160,000
+25.0%over 4 years6 February 1995
£128,000
Median price across the last 5 sales in TA11 6DF: £375,000 (2025–2023).
Rose Cottage Mill Road Barton St David Somerton
Sold Jul 2025
Polegate Cottage Mill Road Barton St David Somerton
Sold Jun 2025
Stonecrop Mill Road Barton St David Somerton
Sold Mar 2025
Talmont Mill Road Barton St David Somerton
Sold Oct 2024
Sidings Mill Road Barton St David Somerton
Sold Aug 2023
CO₂ Emissions
11.0 t/year
Street avg 7.0 t/year
TA11 6DN
Bus Shelter — bus stop.
Closest school
1.8 km
Keinton Mandeville Primary School. 3 schools nearby.
Night-time· 23:00 – 07:00
35.8dB
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