Crown House, Groton Street, Groton, Sudbury, CO10 5EE
About Crown House
Crown House is a three-bedroom detached house in Groton, Sudbury, Sudbury (CO10 5EE). It has a recorded floor area of 183 m² (around 1969 sq ft), construction records dating it to before 1900 and council tax band G. It is a listed building, which means external alterations are tightly controlled but it may qualify for heritage tax reliefs. Period features are noted in the property record. The latest certificate (May 2009) shows a G (score 18), near the bottom of the EPC scale. The recommended improvements would push it to F (score 37). Main heating runs on oil. The latest certificate is from May 2009, so improvements made since then won't be reflected.
At 183 m² the property is well over the postcode median (120 m² across 28 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. 7 planning records sit against the property, 6 approved, 0 refused. Past consents include new windows, meaningful when judging how the property has evolved. The record references listed-building consent, which constrain future alterations. Across 2010–2023, sale prices on this property compounded at 3.1% per year. On a £-per-square-foot basis, the last sale (£366/sq ft) was about 57.9% above the typical sold price in the postcode. Last sale on file: £720,000 in January 2023.
What this property has
Inside
- Bedrooms3
- Bathrooms3
- EnsuiteYes
Outside
- Private gardenYes
- GarageDouble
Building
- Listed buildingYes
- Period featuresYes
Energy performance
Crown House sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 11 May 2019
EPC Rating
Planning history
Crown House has multiple listed-building consents on file — alterations need formal heritage approval.
- Mar 2026RenovationHeritageIn report
Application for Listed Building Consent - Replacement of front door
Listed- Documents
- 2 docs on file
- Reference
- DC/26/01013
- Sept 2025RenovationHeritageIn report
Application for Listed Building Consent - Replacement of windows, remove partition wall
ListedNew Windows- Documents
- 11 docs on file
- Reference
- DC/25/02594
What's in Crown House, Groton Street, Groton, Sudbury, CO10 5EE's planning history?
5 more on this property, plus refusals, disputes and full decisions nearby, in the report.
Sales history & valuation
Crown House valuation sits well clear of the typical sold price in this postcode.
£661,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.1% per year over 13 years.
£720,000
Growth on file: 3.1% per year over 13 years.
Sales timeline
20 January 2023Most recent
£720,000
+46.9%over 12 years18 July 2010
£490,000
Median price across the last 5 sales in CO10 5EE: £425,000 (2024–2021).
Nearby sales in CO10 5EE
1 Groton Street, Groton, Sudbury, CO10 5EE
Sold Feb 2024
£425,000Ivy Cottage, Groton Street, Groton, Sudbury, CO10 5EE
Sold Aug 2023
£470,0002 Groton Street, Groton, Sudbury, CO10 5EE
Sold Jan 2023
£278,0008 Groton Street, Groton, Sudbury, CO10 5EE
Sold Sept 2022
£350,0004 Groton Place, Groton Street, Groton, Sudbury, CO10 5EE
Sold Dec 2021
£720,000
Versus other Groton Street homes
Crown House is notably below the street on epc rating.
Price per m²
£3,936
Street avg £2,960
Floor Area
183 m²
Street avg 148 m²
Habitable Rooms
6 rooms
Street avg 7 rooms
CO₂ Emissions
22.0 t/year
Street avg 7.4 t/year
Similar properties nearby
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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1 Mill Green, Edwardstone
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1 Daking Avenue, Boxford
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1 Brook Hall Road, Boxford
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1 Fen Street, Boxford
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1 Groton Street, Groton
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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
0.5 km
Fox and Hounds — bus stop.
Closest school
1.8 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
44.3dB

Night-time· 23:00 – 07:00
35.9dB







