15 Birch Grove, Welwyn, AL6 0QP
About 15 Birch Grove
15 Birch Grove is a four-bedroom detached house in Welwyn (AL6 0QP). It has a recorded floor area of 112 m² (around 1206 sq ft), construction records dating it to 1976-1982 and council tax band F. The latest certificate (April 2016) shows a D (score 62), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 85), a 2-band jump. The latest certificate is from April 2016, so improvements made since then won't be reflected.
2 planning records sit against the property, 1 approved, 1 refused. Past consents include tree works, meaningful when judging how the property has evolved. Across 1995–2017, sale prices on this property compounded at 6.7% per year. Today's modelled estimate of £626,000 is 19.2% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£435/sq ft) was about 50.9% above the typical sold price in the postcode. Last sold in July 2017, so it's been off the market for around 9 years.
Know exactly what you're buying at 15 Birch Grove
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
- Bathrooms1
- Dining roomYes
- CloakroomYes
Outside
- Private gardenYes
- GarageDouble
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 06 Apr 2026
EPC Rating
Planning history
A a garage conversion application was refused at 15 Birch Grove in 2024.
- Jun 2025Tree WorksTreesIn report
T1 x Sycamore to reduce by 1.5m height & width (TPO749 (2018))
- Reference
- 6/2025/0935/TPO
- Apr 2024Garage ConversionOutlineIn report
Certificate of lawfulness for a garage conversion with extension to rear, replacing garage door with a window and door and raising roof height
Extension- Reference
- 6/2024/0486/LAWP
We flagged 1 thing worth checking at 15 Birch Grove
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
15 Birch Grove has more than quadrupled in price since its earliest registered sale in 1995.
£626,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.7% per year over 22 years.
£525,000
Growth on file: 6.7% per year over 22 years.
Sales timeline
20 July 2017Most recent
£525,000
+32.9%over 10 years9 August 2006
£395,000
+203.8%over 10 years18 December 1995
£130,000
Median price across the last 5 sales in AL6 0QP: £670,000 (2025–2023).
Everything we know about 15 Birch Grove, 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 Birch Grove homes
Floor Area for 15 Birch Grove lags the street by a wide margin.
Price per m²
£4,688
Street avg £4,086
Floor Area
112 m²
Street avg 132 m²
Habitable Rooms
7 rooms
Street avg 6 rooms
CO₂ Emissions
5.0 t/year
Street avg 5.2 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.4 km
The North Star PH — bus stop.
Closest school
0.3 km
Oaklands Primary School. 9 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.