Garden House, Tewin Water, Welwyn, AL6 0AB
About Garden House
Garden House is a detached house in Welwyn (AL6 0AB). It has a recorded floor area of 173 m² (around 1862 sq ft), construction records dating it to before 1900 and council tax band G. The latest certificate (August 2012) shows an F (score 38), near the bottom of the EPC scale. The recommended improvements would lift it to C (score 70), a 3-band jump. The latest certificate is from August 2012, so improvements made since then won't be reflected.
At 173 m² it sits well below the postcode median (281 m² across 5 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. 3 planning records sit against the property, 2 approved, 1 refused. Past consents include an extension and partial demolition, meaningful when judging how the property has evolved.
Know exactly what you're buying at Garden House
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
Energy performance
Garden House sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 09 Aug 2022
EPC Rating
Planning history
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
- Dec 2018ExtensionFullIn report
Extension: Single storey · Rear of property
Link extension to outbuilding. First floor rear extension with alterations to roof. Insertion of 5 no. dormer windows and 2 rooflights. Alterations to outbuilding to include insertion of doors and windows to side.
- Documents
- 26 docs on file
- Reference
- 3/18/2192/HH
- Dec 2014DemolitionFullIn report
Extension: Rear of property
New garage, parking area and gated entrance; Conversion of outbuilding including insertion of windows and doors; Construction of single storey link to dwelling; Double storey rear extension and raising of ridge following demolition of existing rear addition; Addition of external insulation and render to existing dwelling.
- Agent
- Turquoise Noise Ltd
Extension- Documents
- 20 docs on file
- Reference
- 3/14/1792/FP
We flagged 1 thing worth checking at Garden House
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
Garden House has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£1,015,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 4 sales in AL6 0AB: £1,070,000 (2024–1996).
Everything we know about Garden House, 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 Tewin Water homes
Garden House is notably below the street on epc rating.
EPC Rating
38 (F)
Street avg 71 (C)
Floor Area
173 m²
Street avg 276 m²
CO₂ Emissions
12.0 t/year
Street avg 7.3 t/year
Habitable Rooms
7 rooms
Street avg 10 rooms
Similar properties nearby
The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.5 km
Robin Mead — bus stop.
Closest school
0.5 km
Waterside Academy. 16 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.