21b, Emery Street, Cambridge, CB1 2AX
About 21b
21b is a four-bedroom mid-terrace house in Cambridge (CB1 2AX). It has a recorded floor area of 119 m² (around 1281 sq ft), construction records dating it to before 1900 and council tax band E. The latest certificate (April 2021) shows a C (score 71). When first surveyed in August 2009 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Good and lighting went from Average to Very Good; while window efficiency dropped from Good to Average. The recommended improvements would push it to B (score 82). Other recorded features include outbuildings. The home occupies a cul-de-sac position.
3 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. Its energy rating outperforms most of the postcode (better than 87% of similar EPCs). 4 bedrooms is on the larger side for this postcode, where 2 is the typical count. Across 2013–2021, sale prices on this property compounded at 9.5% per year. Today's modelled estimate of £990,000 is 11.9% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£691/sq ft) was about 133% above the typical sold price in the postcode. Sold June 2021 for £885,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
What this property has
Inside
- Bedrooms4
- Bathrooms2
- Dining roomYes
- EnsuiteYes
Outside
- OutbuildingsYes
- Cul-de-sacYes
Building
- RefurbishedYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Windows upgraded, improving insulation
Loft insulation upgraded to recommended levels
Floor insulation added or improved
More low energy lighting installed
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 £1,495 · Includes VAT
Planning history
3 applications on record at 21b, Emery Street, Cambridge, CB1 2AX
- Mar 2014OutbuildingFullOutcome in report
Timber framed garden studio
- Council
- Cambridge City Council
- Documents
- 12 docs on file
- Reference
- 14/0072/FUL
- More recent applications — locked
- ExtensionJul 2017Decision
- Tree WorksApr 2014Decision
Unlock 21b, 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 (3 on record)
- All 3 applications on this property in full, plus 17 notable nearby
- The 40 documents, officer reports & conditions
- What the pattern means for extending or converting here
One time fee only - money back guarantee
Sales history & valuation
21b has more than doubled in price since the earliest registered sale in 2013.
£990,000
Modelled from EPC, postcode comparables and a sale-price growth of 9.5% per year over 8 years.
£885,000
Growth on file: 9.5% per year over 8 years.
Sales timeline
28 June 2021Most recent
£885,000
+105.8%over 7 years4 July 2013
£430,000
Median price across the last 5 sales in CB1 2AX: £780,000 (2024–2022).
Nearby sales in CB1 2AX
Versus other Emery Street homes
21b outperforms the street on co₂ emissions by a wide margin.
Price per m²
£7,437
Street avg £5,560
Floor Area
119 m²
Street avg 112 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
3.7 t/year
Street avg 5.7 t/year
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







