23 Herbert Street, Cambridge, CB4 1AG
About 23 Herbert Street
23 Herbert Street is a six-bedroom mid-terrace house in Cambridge (CB4 1AG). It has a recorded floor area of 89 m² (around 958 sq ft), construction records dating it to before 1900 and council tax band E. The latest certificate (November 2022) shows a D (score 62), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 80).
2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, a loft conversion and solar panel installation, meaningful when judging how the property has evolved. Across 1999–2023, sale prices on this property compounded at 6.2% per year. Today's modelled estimate of £787,000 is 25.9% above the 2023 sale price. On a £-per-square-foot basis, the last sale (£652/sq ft) was about 93.1% above the typical sold price in the postcode. At 89 m² it's 19.5% smaller than the typical home in the postcode (111 m² median across 16 EPCs). 6 bedrooms is on the larger side for this postcode, where 4 is the typical count. Last sale on file: £625,000 in January 2023.
Know exactly what you're buying at 23 Herbert Street
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
What this property has
Inside
- Bedrooms6
- Bathrooms2
Energy performance
EPC Rating
Planning history
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
- Aug 2022ExtensionFullIn report
Extension: Single storey · Rear of property
Single storey ground floor rear extension and insulation/ render to the existing rear two storey extension.
- Agent
- Paul Evans Architects Limited
- Council
- Cambridge City Council
- Documents
- 16 docs on file
- Reference
- 22/02454/HFUL
- Apr 2022Loft ConversionFullIn report
Extension: Rear of property
Loft conversion incorporating rear dormer which extends (partly) over existing rear extension and the installation of PV panels.
- Agent
- Ely Design Group
- Council
- Cambridge City Council
ExtensionSolar Panels- Documents
- 14 docs on file
- Reference
- 22/00938/HFUL
We flagged 2 things worth checking at 23 Herbert Street
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.
- Signs of HMO activity in the area
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
Price for 23 Herbert Street has grown more than fourfold since the 1999 starting point.
£787,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.2% per year over 24 years.
£625,000
Growth on file: 6.2% per year over 24 years.
Sales timeline
27 January 2023Most recent
£625,000
+311.2%over 23 years27 May 1999
£152,000
Median price across the last 5 sales in CB4 1AG: £675,000 (2025–2021).
Nearby sales in CB4 1AG
Everything we know about 23 Herbert Street, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Signs of HMO activity in the area
- Larger development activity nearby

Versus other Herbert Street homes
Price per m² for 23 Herbert Street runs comfortably ahead of the street norm.
Price per m²
£7,022
Street avg £5,585
Floor Area
89 m²
Street avg 112 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
4.0 t/year
Street avg 5.4 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
7/mo
Steady year-on-year across the wider district.
Nearest stop
2.3 km
Cambridge North Rail Station — railway station.
Closest school
0.3 km
Milton Road Primary School. 23 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
51.2dB

Night-time· 23:00 – 07:00
42.4dB