Aldwyn House, Calais Street, Boxford, Sudbury, CO10 5JA
About Aldwyn House
Aldwyn House is a four-bedroom detached house in Boxford, Sudbury, Sudbury (CO10 5JA). It has a recorded floor area of 200 m² (around 2153 sq ft), construction records dating it to 2003-2006 and council tax band F. The latest certificate (September 2021) shows a C (score 74). The rating has held steady at C across 3 certificates since March 2011. Between certificates, roof efficiency went from Good to Very Good; while hot-water efficiency dropped from Average to Poor and main heating dropped from Average to Poor. The recommended improvements would push it to B (score 82). Main heating runs on oil.
At 200 m² the property is well over the postcode median (115 m² across 7 EPCs), placing it in the larger end of the local stock. One planning record on file: an extension approved in 2014. Past consents include an extension and new windows, meaningful when judging how the property has evolved. Across 2006–2022, sale prices on this property compounded at 2.5% per year. On a £-per-square-foot basis, the last sale (£295/sq ft) was about 26.8% above the typical sold price in the postcode. Last sale on file: £635,000 in April 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
What this property has
Inside
- Bedrooms4
- Bathrooms3
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water system changed
Roof insulation improved
Hot water system upgraded
Planning history
- Aug 2014ExtensionFullIn report
Insertion of first floor side window as amended by plan received 29th July 2014.
New Windows- Documents
- 9 docs on file
- Reference
- B/14/00675
What's in Aldwyn House, Calais Street, Boxford, Sudbury, CO10 5JA's planning history?
Refusals, disputes and full decisions on this property and nearby, in the report.
Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£628,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.5% per year over 16 years.
£635,000
Growth on file: 2.5% per year over 16 years.
Sales timeline
26 April 2022Most recent
£635,000
+49.4%over 10 years4 April 2012
£425,000
-1.2%over 5 years13 July 2006
£430,000
Median price across the last 5 sales in CO10 5JA: £250,000 (2024–2017).
Nearby sales in CO10 5JA
1 Jubilee Cottage, Calais Street, Boxford, Sudbury, CO10 5JA
Sold Nov 2024
£315,000Richmond Lodge, Calais Street, Boxford, Sudbury, CO10 5JA
Sold Aug 2020
£430,000The Lilypad, Calais Street, Boxford, Sudbury, CO10 5JA
Sold Oct 2019
£160,000Pro Tem, Calais Street, Boxford, Sudbury, CO10 5JA
Sold Oct 2017
£250,000The Rosary, Calais Street, Boxford, Sudbury, CO10 5JA
Sold Jun 2016
£770,000
Versus other Calais Street homes
On years held, Aldwyn House runs well behind the street norm.
Price per m²
£3,175
Street avg £4,095
Floor Area
200 m²
Street avg 147 m²
Habitable Rooms
7 rooms
Street avg 5 rooms
CO₂ Emissions
5.9 t/year
Street avg 6.5 t/year
Similar properties nearby
1 Brook Hall Road, Boxford
CO10 5HS
1 Groton Street, Groton
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1 Homefield, Boxford
CO10 5PB
1 Marsh Road, Boxford
CO10 5HT
1 Hadleigh Road, Boxford
CO10 5JH
1 Horners Green, Groton
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1 Boxford Lane, Boxford
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1 Holbrook Barn Road, Boxford
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The neighbourhood at a glance
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
0.2 km
Wash Lane — bus stop.
Closest school
1.0 km
Boxford Church of England Voluntary Controlled Primary School. 1 school nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
45.5dB

Night-time· 23:00 – 07:00
38.7dB







