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Get started27 Sun Street is a detached house in Biggleswade (SG18 0BP). It has a recorded floor area of 111 m² (around 1195 sq ft), construction records dating it to 1900-1929 and council tax band E. The latest certificate (January 2022) shows an F (score 21), near the bottom of the EPC scale. The recommended improvements would lift it to C (score 80), a 3-band jump.
At 111 m² the property is well over the postcode median (72 m² across 16 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. On a £-per-square-foot basis, the last sale (£398/sq ft) was about 127.1% above the typical sold price in the postcode. Sold July 2022 for £475,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
27 Sun Street sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
27 Sun Street has an approved single-storey side and rear extension on the planning record.
Extension: Single storey · Side and rear of property
First floor rear and side extension
Latest sale on 27 Sun Street was the highest on Land Registry record across the postcode.
£494,000
Modelled from EPC, postcode comparables.
£475,000
Recorded with HM Land Registry.
EPC Rating for 27 Sun Street lags the street by a wide margin.
Price per m²
£4,279
Street avg £3,402
Floor Area
111 m²
Street avg 101 m²
Habitable Rooms
8 rooms
Street avg 4 rooms
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Sun Street — bus stop.

Daytime· 07:00 – 23:00
53.7dB

Erection of 5 foot fence (with 1 foot of trellis on top) along much of the east boundary of the property, fronting onto Fairfield Road.
15 July 2022Most recent
£475,000
Median price across the last 5 sales in SG18 0BP: £255,000 (2025–2018).
CO₂ Emissions
14.0 t/year
Street avg 4.8 t/year
Closest school
0.2 km
St Andrew's CofE VC Primary School. 6 schools nearby.
Night-time· 23:00 – 07:00
43.8dB
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