18 Mount Keen, Stevenage, SG1 6BP
About 18 Mount Keen
18 Mount Keen is a five-bedroom detached house in Stevenage (SG1 6BP). It has a recorded floor area of 154 m² (around 1658 sq ft), construction records dating it to 1996-2002 and council tax band F. The latest certificate (March 2014) shows a D (score 65), on the cusp of jumping into the C band. Earlier certificates rated it C (May 2010); the latest reading is one band lower. Between certificates, wall efficiency dropped from Good to Poor. The recommended improvements would lift it to B (score 84), a 2-band jump. The latest certificate is from March 2014, so improvements made since then won't be reflected.
Sold August 2018 for £525,000. Across the public record there are 4 sales, relatively high churn for a single property. Across 2003–2018, sale prices on this property compounded at 4% per year. On a £-per-square-foot basis, the last sale (£317/sq ft) was about 51.8% above the typical sold price in the postcode.
Know exactly what you're buying at 18 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
- Bedrooms5
- Dining roomYes
- CloakroomYes
- EnsuiteYes
Outside
- Private gardenRear
- GarageYes
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 28 Mar 2024
EPC Rating
Planning history
18 Mount Keen has no planning applications on record.
Notable planning nearby
1applications of note in the surrounding area
Sales history & valuation
18 Mount Keen valuation sits well clear of the typical sold price in this postcode.
£566,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.0% per year over 15 years.
£525,000
Growth on file: 4.0% per year over 15 years.
Sales timeline
19 August 2018Most recent
£525,000
+47.9%over 7 years23 August 2010
£355,000
-4.8%over 2 years25 September 2007
£373,000
+25.6%over 3 years12 December 2003
£297,000
Median price across the last 5 sales in SG1 6BP: £565,000 (2025–2020).
Everything we know about 18 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
On price per m², 18 Mount Keen stands well clear of the street.
Price per m²
£3,409
Street avg £2,723
Floor Area
154 m²
Street avg 149 m²
Habitable Rooms
8 rooms
Street avg 8 rooms
CO₂ Emissions
5.6 t/year
Street avg 5.2 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