18 Great Gables, Stevenage, SG1 6GL
About 18 Great Gables
18 Great Gables is a four-bedroom semi-detached house in Stevenage (SG1 6GL). It has a recorded floor area of 130 m² (around 1399 sq ft), construction records dating it to 2003-2006 and council tax band D. The latest certificate (April 2016) shows a C (score 77), near the top of the C band. The recommended improvements would push it to B (score 86). The latest certificate is from April 2016, so improvements made since then won't be reflected.
At 130 m² the property is well over the postcode median (59 m² across 39 EPCs), placing it in the larger end of the local stock. Across 2005–2021, sale prices on this property compounded at 3.7% per year. Today's modelled estimate of £495,000 is 13.8% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£311/sq ft) was about 21.1% above the typical sold price in the postcode. Most recent transfer: June 2021 at £435,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. One historical planning record sits against the property in 2015.
Know exactly what you're buying at 18 Great Gables
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
- FireplaceYes
Outside
- GarageYes
Energy performance
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 16 Apr 2026
EPC Rating
Planning history
Council records include a two-storey rear extension at 18 Great Gables.
- Jun 2015ExtensionFullIn report
Extension: Two storey · Rear of property
Two storey rear extension
- Agent
- Home Extension Team
- Documents
- 1 doc on file
- Reference
- 15/01156/1HH
What's in 18 Great Gables, Stevenage, SG1 6GL's planning history?
Refusals, disputes and full decisions on this property and nearby, in the report.
Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£495,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.7% per year over 16 years.
£435,000
Growth on file: 3.7% per year over 16 years.
Sales timeline
24 June 2021Most recent
£435,000
+11.5%over 4 years21 May 2017
£390,000
+58.6%over 11 years13 December 2005
£245,950
Median price across the last 5 sales in SG1 6GL: £300,000 (2025–2023).
Nearby sales in SG1 6GL
Everything we know about 18 Great Gables, 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 Great Gables homes
Floor Area for 18 Great Gables runs comfortably ahead of the street norm.
Price per m²
£3,346
Street avg £3,608
Floor Area
130 m²
Street avg 87 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
3.2 t/year
Street avg 2.2 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
0.2 km
The Beacons — bus stop.
Closest school
0.3 km
Round Diamond Primary School. 18 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
46.5dB

Night-time· 23:00 – 07:00
36.9dB