1c, Birdbush Avenue, Saffron Walden, CB11 4DJ
About 1c
1c is a semi-detached house in Saffron Walden (CB11 4DJ). It has a recorded floor area of 172 m² (around 1851 sq ft), construction records dating it to 2007-2011 and council tax band E. The latest certificate (June 2025) returns a B (score 82), comfortably above the UK average. The rating has held steady at B across 2 certificates since July 2010. Between certificates, wall efficiency dropped from Very Good to Good and roof efficiency dropped from Very Good to Good.
Untraded for 15 years, with the last transfer in May 2011. At 172 m² the property is well over the postcode median (64 m² across 33 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. Today's modelled estimate of £610,000 sits 74.3% above the 2011 sale of £349,950. On a £-per-square-foot basis, the last sale (£189/sq ft) was about 16.2% below the postcode norm. One planning record on file: an extension approved in 2019. Past consents include an extension and a garage conversion, meaningful when judging how the property has evolved.
Know exactly what you're buying at 1c
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
1c ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Hot water efficiency decreased
More low energy lighting installed
Solar PV panels (10 kWp) installed
Planning history
- Feb 2019Garage ConversionFullIn report
Extension: Single storey · Side of property
Conversion of existing garage to habitable accomodation and erection of a single storey side extension.
- Agent
- Rachel Moses Architect Ltd
Extension- Documents
- 15 docs on file
- Reference
- UTT/18/3182/HHF
We flagged 1 thing worth checking at 1c
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
1c valuation sits well clear of the typical sold price in this postcode.
£610,000
Modelled from EPC, postcode comparables.
£349,950
Recorded with HM Land Registry.
Sales timeline
26 May 2011Most recent
£349,950
Median price across the last 5 sales in CB11 4DJ: £330,000 (2025–2022).
Nearby sales in CB11 4DJ
5a, Birdbush Avenue, Saffron Walden, CB11 4DJ
Sold Jun 2025
£340,0004 Birdbush Avenue, Saffron Walden, CB11 4DJ
Sold Mar 2025
£330,0001 Birdbush Avenue, Saffron Walden, CB11 4DJ
Sold Mar 2023
£615,00012 Birdbush Avenue, Saffron Walden, CB11 4DJ
Sold Jan 2023
£257,00020 Birdbush Avenue, Saffron Walden, CB11 4DJ
Sold Apr 2022
£230,000
Everything we know about 1c, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby

Versus other Birdbush Avenue homes
On price per m², 1c runs well behind the street norm.
Price per m²
£2,035
Street avg £3,167
Floor Area
172 m²
Street avg 93 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
2.9 t/year
Street avg 2.8 t/year
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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
0.1 km
Rowntree Way — bus stop.
Closest school
0.7 km
Saffron Walden County High School. 7 schools 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
47.9dB

Night-time· 23:00 – 07:00
37.8dB