29 Firs Walk, Tewin, Welwyn, AL6 0NY
About 29 Firs Walk
29 Firs Walk is a four-bedroom detached house in Tewin, Welwyn, Welwyn (AL6 0NY). It has a recorded floor area of 362 m² (around 3897 sq ft), construction records dating it to 1930-1949 and council tax band G. The latest certificate (August 2020) shows a C (score 73). When first surveyed in September 2012 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Good to Very Good, window efficiency went from Average to Very Good and lighting went from Good to Very Good; while main heating dropped from Good to Average. The recommended improvements would push it to B (score 84). Main heating runs on electricity: electricity, unspecified tariff. Other recorded features include outbuildings. The home occupies a cul-de-sac position.
At 362 m² the property is well over the postcode median (221 m² across 14 EPCs), placing it in the larger end of the local stock. Across 2013–2020, sale prices on this property compounded at 17.9% per year. On a £-per-square-foot basis, the last sale (£488/sq ft) was about 52.8% above the typical sold price in the postcode. 4 planning records sit against the property, 3 approved, 1 refused. Last sale on file: £1,900,000 in November 2020.
Know exactly what you're buying at 29 Firs Walk
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
- Bedrooms4
- Dining roomYes
Outside
- Private gardenYes
- GarageYes
- OutbuildingsYes
- Cul-de-sacYes
Energy performance
29 Firs Walk's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heat pump installed, significantly improving energy efficiency
Changed to a more efficient fuel source
Heating controls upgraded for better temperature management
Hot water system upgraded
High performance glazing installed
Wall insulation improved
Floor insulation added or improved
More low energy lighting installed
Planning history
- Jul 2022FullIn report
Erection of open-sided garden shelter/outbuilding, creation of swimming pool, lowering of ground levels, alterations to retaining wall and creation of external steps and replacement fencing.
- Documents
- 13 docs on file
- Reference
- 3/22/0671/HH
- Feb 2021Demolition And RebuildConditionsIn report
Variation of condition 2 (approved plans) of reference: 3/13/2236/FP (Demolition of an existing residential dwelling and construction of a replacement dwelling), to update drawings, to reflect the property as built, including: removal of access ramp, provision of garage at ground floor, relocation of basement, reduction of basement size and other external alterations. Addition of new privacy screen.
- Agent
- Savills
- Documents
- 14 docs on file
- Reference
- 3/20/2248/VAR
We flagged 1 thing worth checking at 29 Firs Walk
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 29 Firs Walk was the highest on Land Registry record across the postcode.
£2,029,000
Modelled from EPC, postcode comparables and a sale-price growth of 17.9% per year over 8 years.
£1,900,000
Growth on file: 17.9% per year over 8 years.
Sales timeline
20 November 2020Most recent
£1,900,000
+248.6%over 7 years23 April 2013
£545,000
Median price across the last 5 sales in AL6 0NY: £1,250,000 (2025–2017).
Nearby sales in AL6 0NY
Everything we know about 29 Firs Walk, 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 Firs Walk homes
Floor Area for 29 Firs Walk runs comfortably ahead of the street norm.
Price per m²
£5,249
Street avg £4,581
Floor Area
362 m²
Street avg 231 m²
CO₂ Emissions
7.5 t/year
Street avg 8.3 t/year
Years Held
6 years
Street avg 11 years
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1 Barneswood
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1 Copper Beeches
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1 Bluebells
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1 Desborough Drive, Tewin
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The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.7 km
Desborough Drive — bus stop.
Closest school
1.9 km
Tewin Cowper Church of England Voluntary Aided Primary School. 7 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.