3 Mount Keen, Stevenage, SG1 6BP
About 3 Mount Keen
3 Mount Keen is a four-bedroom detached house in Stevenage (SG1 6BP). It has a recorded floor area of 122 m² (around 1313 sq ft), construction records dating it to 2003-2006 and council tax band E. The latest certificate (April 2022) shows a C (score 76), near the top of the C band. The recommended improvements would push it to B (score 85). Our model identifies extension potential, subject to local planning policy.
Held since May 2007 — that's 19 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Across 2003–2007, sale prices on this property compounded at 3.9% per year. Today's modelled estimate of £562,000 sits 81.9% above the 2007 sale of £309,000. One planning record on file: a garage conversion approved in 2017. Past consents include a garage conversion, meaningful when judging how the property has evolved. At 122 m² it's 20.5% smaller than the typical home in the postcode (154 m² median across 18 EPCs).
Know exactly what you're buying at 3 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
- EnsuiteYes
- StudyYes
Outside
- Private gardenNorth-east-facing
- GarageYes
Building
- Extension potentialPossible
Energy performance
EPC Rating
Planning history
- Jun 2017Garage ConversionOutlineIn report
Replacement of garage door with brickwork and casement window to facilitate the conversion of the existing integral garage to ancillary habitable accommodation.
- Agent
- Home Extension Team
- Documents
- 1 doc on file
- Reference
- 17/01293/1PUD
What's in 3 Mount Keen, Stevenage, SG1 6BP's planning history?
Refusals, disputes and full decisions on this property and nearby, in the report.
Sales history & valuation
The latest sale landed at the peak of the pre-credit-crunch market — a high-water reference point.
£562,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.9% per year over 4 years.
£309,000
Growth on file: 3.9% per year over 4 years.
Sales timeline
23 May 2007Most recent
£309,000
+18.2%over 4 years20 January 2003
£261,500
Median price across the last 5 sales in SG1 6BP: £565,000 (2025–2020).
Everything we know about 3 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
3 Mount Keen outperforms the street on epc rating by a wide margin.
Price per m²
£2,533
Street avg £2,771
Floor Area
122 m²
Street avg 150 m²
Habitable Rooms
7 rooms
Street avg 8 rooms
CO₂ Emissions
3.2 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