4 Mount Keen, Stevenage, SG1 6BP
About 4 Mount Keen
4 Mount Keen is a four-bedroom detached house in Stevenage (SG1 6BP). It has a recorded floor area of 112 m² (around 1206 sq ft), construction records dating it to 1996-2002 and council tax band E. The latest certificate (May 2016) shows a C (score 70). When first surveyed in September 2009 the rating was D, the property has climbed 1 band since. Between certificates, lighting went from Very Poor to Good. The recommended improvements would push it to B (score 82). The latest certificate is from May 2016, so improvements made since then won't be reflected. Records show the property has been extended at some point in its history. The home occupies a cul-de-sac position.
Most recent transfer: June 2024 at £560,000. Across the public record there are 5 sales, relatively high churn for a single property. One planning record on file: an extension approved in 2026. Past consents include an extension, a garage conversion and a porch, meaningful when judging how the property has evolved. Across 2002–2024, sale prices on this property compounded at 3.6% per year. On a £-per-square-foot basis, the last sale (£465/sq ft) was about 125.8% above the typical sold price in the postcode. At 112 m² it's 27% smaller than the typical home in the postcode (154 m² median across 18 EPCs).
Know exactly what you're buying at 4 Mount Keen
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms4
- Bathrooms2
- Dining roomYes
- CloakroomYes
- EnsuiteYes
Outside
- Private gardenRear
- GarageIntegral
- Cul-de-sacYes
Building
- Previously extendedYes
Energy performance
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 05 May 2026
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Loft insulation upgraded to recommended levels
More low energy lighting installed
Cavity wall insulation installed
Planning history
- Mar 2026Garage ConversionOutlineIn report
Front porch extension. Insertion of front ground floor window following removal of existing garage doors to facilitate garage conversion into habitable accommodation.
- Agent
- Mr Geoffrey Phillips
ExtensionPorch- Documents
- 6 docs on file
- Reference
- 26/00374/LDCP
What's in 4 Mount Keen, Stevenage, SG1 6BP's planning history?
Refusals, disputes and full decisions on this property and nearby, in the report.
Sales history & valuation
4 Mount Keen has more than doubled in price since the earliest registered sale in 2002.
£546,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.6% per year over 21 years.
£560,000
Growth on file: 3.6% per year over 21 years.
Sales timeline
2 June 2024Most recent
£560,000
+12.0%over 3 years6 November 2020
£500,000
+67.8%over 10 years27 November 2009
£298,000
+5.5%over 3 years20 March 2006
£282,500
+8.7%over 3 years20 December 2002
£260,000
Median price across the last 5 sales in SG1 6BP: £565,000 (2025–2017).
Everything we know about 4 Mount Keen, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

Versus other Mount Keen homes
4 Mount Keen outperforms the street on price per m² by a wide margin.
Price per m²
£5,000
Street avg £2,634
Floor Area
112 m²
Street avg 151 m²
Habitable Rooms
7 rooms
Street avg 8 rooms
CO₂ Emissions
3.9 t/year
Street avg 5.3 t/year
Similar properties nearby
The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
20/mo
Rising year-on-year across the wider district.
Nearest stop
0.4 km
Fairfield Way — bus stop.
Closest school
0.8 km
Round Diamond Primary School. 13 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
43.8dB

Night-time· 23:00 – 07:00
36.0dB