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Get started15 Castlegate is a five-bedroom detached house in Gipsey Bridge, Boston, Boston (PE22 7BS). It has a recorded floor area of 145 m² (around 1561 sq ft), construction records dating it to 1967-1975 and council tax band C. The latest certificate (October 2014) shows a C (score 69), just inside the C band. The recommended improvements would push it to B (score 81). Main heating runs on oil. The latest certificate is from October 2014, so improvements made since then won't be reflected. Other recorded features include notable views.
Sale prices here have outpaced Boston HPI: 8.4% per year against 0% for the wider region. Today's modelled estimate of £341,000 is 28.7% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£170/sq ft) was about 57.9% above the typical sold price in the postcode. At 145 m² the property is well over the postcode median (107 m² across 21 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the top 10% of properties in this postcode. 5 bedrooms is on the larger side for this postcode, where 3 is the typical count. One planning record on file: an extension approved in 2005. Past consents include an extension, meaningful when judging how the property has evolved. Last sale on file: £265,000 in January 2019.
15 Castlegate ranks among the most efficient homes in the postcode for energy use.
This certificate is over 10 years old and is no longer valid.Expired 01 Oct 2024
Planning Permission - Extensions and alterations to existing house to provide a playroom, utility, integral single garage, conservatory and front porch with 2no. bedrooms, dressing room and ensuite bathroom over on site of the existing garage and carport to be removed, provision of parking and alterations to an existing vehicular access.
Price for 15 Castlegate has grown more than fourfold since the 1997 starting point.
£341,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.4% per year over 21 years.
£265,000
Growth on file: 8.4% per year over 21 years.
On habitable rooms, 15 Castlegate stands well clear of the street.
Price per m²
£1,828
Street avg £1,516
Floor Area
145 m²
Street avg 109 m²
Habitable Rooms
8 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
44.4dB

30 January 2019Most recent
£265,000
+15.2%over 2 years19 May 2016
£230,000
+384.2%over 18 years22 October 1997
£47,500
Median price across the last 5 sales in PE22 7BS: £213,000 (2025–2023).
Street avg 6 rooms
CO₂ Emissions
5.8 t/year
Street avg 6.3 t/year
PE22 7BS
Castlegate — bus stop.
Closest school
0.3 km
Gipsey Bridge Academy. 1 school nearby.
Flood risk
Medium
From the Environment Agency.
Night-time· 23:00 – 07:00
37.5dB
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