21a, Woodside Road, Welwyn, AL6 0DS
About 21a
21a is a detached house in Welwyn (AL6 0DS). It has a recorded floor area of 140 m² (around 1507 sq ft), construction records dating it to 1900-1929 and council tax band E. The latest certificate (August 2015) shows a D (score 61), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since January 2011. Between certificates, lighting went from Very Poor to Poor; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would push it to C (score 78). The latest certificate is from August 2015, so improvements made since then won't be reflected.
3 planning records sit against the property, 2 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved.
Know exactly what you're buying at 21a
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
21a's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 26 Aug 2025
EPC Rating
Planning history
21a has been extended on multiple sides of the property across separate planning applications.
- May 2017ExtensionOutlineIn report
Extension: Single storey · Rear of property
Prior approval for the erection of a single storey rear extension measuring 4.480m in depth, 2.925m in height and 2.925m to the eaves.
- Reference
- 6/2017/0637/PN8
- Feb 2017ExtensionFullIn report
Extension: Single storey · Side and rear of property
Erection of single storey side and rear extension following the removal of an existing conservatory
- Reference
- 6/2016/2666/HOUSE
We flagged 1 thing worth checking at 21a
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
21a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£735,000
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 5 sales in AL6 0DS: £615,000 (2018–2015).
Everything we know about 21a, 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 Woodside Road homes
Floor Area for 21a runs comfortably ahead of the street norm.
EPC Rating
61 (D)
Street avg 55 (E)
Floor Area
140 m²
Street avg 124 m²
CO₂ Emissions
6.2 t/year
Street avg 6.2 t/year
Habitable Rooms
7 rooms
Street avg 7 rooms
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Welwyn North Rail Station — railway station.
Closest school
0.7 km
St John's CofE 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.