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Get started21 Herd Street is a three-bedroom semi-detached house in Marlborough (SN8 1DG). It has a recorded floor area of 91 m² (around 980 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (May 2019) shows a D (score 60), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 84), a 2-band jump. Period features are noted in the property record.
Untraded for 27 years, with the last transfer in November 1999. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £406,000 sits 377.6% above the 1999 sale of £85,000. On a £-per-square-foot basis, the last sale (£87/sq ft) was about 64.7% below the postcode norm. 2 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved.
Recommended upgrades on file would lift this property by multiple EPC bands.
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
Proposed loft conversion with end elevation dormer
21 Herd Street's modelled value sits at over four times its earliest registered sale price (1999).
£406,000
Modelled from EPC, postcode comparables.
£85,000
Recorded with HM Land Registry.
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21 Herd Street is notably below the street on price per m².
Price per m²
£934
Street avg £2,866
Floor Area
91 m²
Street avg 94 m²
Habitable Rooms
5 rooms
Street avg 5 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
0.1 km

Daytime· 07:00 – 23:00
48.5dB

Extension: Rear of property
Proposed two storey rear extension
19 November 1999Most recent
£85,000
Median price across the last 5 sales in SN8 1DG: £370,000 (2025–2021).
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Related properties
Comparable homes and street-level pricing
Full planning history
Every application and decision on record
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CO₂ Emissions
4.8 t/year
Street avg 5.1 t/year
SN8 1EL
Laineys Close — bus stop.
Closest school
0.7 km
Marlborough St Mary's CE Primary School. 3 schools nearby.
Night-time· 23:00 – 07:00
40.4dB