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Get started73 High Street is a three-bedroom detached house in Broom, Biggleswade, Biggleswade (SG18 9NA). It has a recorded floor area of 116 m² (around 1249 sq ft), construction records dating it to before 1900 and council tax band E. The latest certificate (August 2024) shows an F (score 34), near the bottom of the EPC scale. When first surveyed in February 2017 the rating was G, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Very Poor to Average and main heating went from Poor to Average; while roof efficiency dropped from Average to Very Poor. The recommended improvements would lift it to C (score 73), a 3-band jump. Main heating runs on oil. Other recorded features include a self-contained annexe and a basement.
Sale prices here have outpaced England HPI: 4.5% per year against 0% for the wider region. Today's modelled estimate of £459,000 is 22.4% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£300/sq ft) was about 50% above the typical sold price in the postcode. At 116 m² the property is well over the postcode median (64 m² across 27 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 a garage conversion and an annexe, meaningful when judging how the property has evolved. 9 years since the last transfer (May 2017).
73 High Street's carbon output runs well above what efficient homes in the postcode produce.
Lawful Development Existing: Conversion of a garage and use as an annex ancillary to the main dwelling
73 High Street valuation sits well clear of the typical sold price in this postcode.
£459,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.5% per year over 13 years.
£375,000
Growth on file: 4.5% per year over 13 years.
73 High Street is notably below the street on epc rating.
Price per m²
£3,233
Street avg £3,359
Floor Area
116 m²
Street avg 103 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km

Daytime· 07:00 – 23:00
45.2dB

Changes detected from historical EPC data
Heat pump installed, significantly improving energy efficiency
Fuel source changed
Heating controls upgraded for better temperature management
Hot water system upgraded
Are we missing something? Tell us about home improvements to help adjust your valuation.
Lawful Development Certificate Proposed: Conversion of an existing garage to an annex
5 May 2017Most recent
£375,000
+80.3%over 13 years7 November 2003
£208,000
Median price across the last 5 sales in SG18 9NA: £295,000 (2025–2023).
CO₂ Emissions
7.5 t/year
Street avg 5.5 t/year
SG18 9SH
The Woodlands — bus stop.
Closest school
2.1 km
Langford Village Academy. 6 schools nearby.
Night-time· 23:00 – 07:00
37.2dB
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