21d, Emery Street, Cambridge, CB1 2AX
About 21d
21d is an end-of-terrace house in Cambridge (CB1 2AX). It has a recorded floor area of 112 m² (around 1206 sq ft), construction records dating it to before 1900 and council tax band F. The latest certificate (June 2025) shows a D (score 57), a step below the typical UK home. The rating has held steady at D across 3 certificates since March 2011. Between certificates, hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would lift it to B (score 84), a 2-band jump.
2 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved.
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
Window efficiency improved
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, has been extended more than once, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £1,220 · Includes VAT
Planning history
21d has 2 separate extension applications on the council record.
2 applications on record at 21d, Emery Street, Cambridge, CB1 2AX
- Aug 2017ExtensionFullOutcome in report
Extension: Two storey
Two-storey extension with upper floor balcony, changes to rooflights to front elevation.
- Council
- Cambridge City Council
- Documents
- 21 docs on file
- Reference
- 17/1057/FUL
- More recent applications — locked
- ExtensionJan 2018Decision
Unlock 21d, Emery Street, Cambridge, CB1 2AX's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (2 on record)
- All 2 applications on this property in full, plus 17 notable nearby
- The 39 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
21d has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£762,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in CB1 2AX: £780,000 (2024–2022).
Nearby sales in CB1 2AX
Versus other Emery Street homes
EPC Rating
57 (D)
Street avg 58 (D)
Floor Area
112 m²
Street avg 113 m²
CO₂ Emissions
5.7 t/year
Street avg 5.7 t/year
Habitable Rooms
6 rooms
Street avg 6 rooms
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
4/mo
Rising year-on-year across the wider district.
Nearest stop
0.8 km
Cambridge Rail Station — railway station.
Closest school
0.4 km
Cambridge Maths School. 30 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
50.5dB

Night-time· 23:00 – 07:00
39.8dB







