27 Dunn Close, Stevenage, SG1 1SB
About 27 Dunn Close
27 Dunn Close is a three-bedroom semi-detached house in Stevenage (SG1 1SB). It has a recorded floor area of 125 m² (around 1345 sq ft), construction records dating it to 1950-1966 and council tax band D. The latest certificate (August 2021) shows a C (score 74). When first surveyed in August 2012 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Very Good, hot-water efficiency went from Average to Good and lighting went from Good to Very Good; while wall efficiency dropped from Good to Average. The recommended improvements would push it to B (score 83). Records show the property has been extended at some point in its history.
At 125 m² the property is well over the postcode median (87 m² across 11 EPCs), placing it in the larger end of the local stock. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. On a £-per-square-foot basis, the last sale (£349/sq ft) was about 78.6% above the typical sold price in the postcode. Most recent transfer: April 2022 at £470,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 27 Dunn Close
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
- Bedrooms3
- Utility roomYes
- CloakroomYes
Outside
- GarageYes
Building
- Previously extendedYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Replaced storage heaters with gas boiler
Connected to mains gas supply
Heating controls upgraded for better temperature management
Hot water system upgraded
Roof insulation improved
Planning history
27 Dunn Close has been extended on multiple sides of the property across separate planning applications.
- Apr 2013ExtensionFullIn report
Extension: Single storey · Rear of property
Single storey rear extension
- Agent
- Aria Design
- Documents
- 6 docs on file
- Reference
- 13/00078/FP
- Sept 2012ExtensionFullIn report
Extension: Side and rear of property
Two storey side and single storey rear extension
- Agent
- Aria Design
- Documents
- 6 docs on file
- Reference
- 12/00330/FP
We flagged 1 thing worth checking at 27 Dunn Close
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
Latest sale on 27 Dunn Close was the highest on Land Registry record across the postcode.
£490,000
Modelled from EPC, postcode comparables.
£470,000
Recorded with HM Land Registry.
Sales timeline
5 April 2022Most recent
£470,000
Median price across the last 5 sales in SG1 1SB: £300,000 (2025–2013).
Everything we know about 27 Dunn Close, 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 Dunn Close homes
On floor area, 27 Dunn Close stands well clear of the street.
Price per m²
£3,760
Street avg £3,008
Floor Area
125 m²
Street avg 87 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
3.7 t/year
Street avg 2.9 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
0.2 km
Roaring Meg Retail Park — bus stop.
Closest school
0.4 km
North Hertfordshire College. 26 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
55.4dB

Night-time· 23:00 – 07:00
47.3dB