Grass Warren, Tewin, Welwyn

House prices, sold prices and local information for AL6 0JL, AL6 0JJ.

Average price (last 12 months)

–

0 sales

Average price (since 2022)

£600,833

3 sales

Price range

£500k – £708k

lowest to highest sale

Last sale

5 Jul 2024

AL6 0JL

At a glance

House prices£601k averageSince 2022 (few recent sales) CrimeAbout averageLower crime than about 60% of neighbourhoods in England DeprivationLess deprived than mostDecile 7 of 10 (10 = least deprived) Flood riskIn a flood warning areaCheck the GOV.UK long-term risk Nearest station34 min walkWelwyn North station Schools3 rated Good or betterWithin 1.5 miles Ultrafast broadband97% of homesNational average 80%

3 property sales on Grass Warren, Tewin, Welwyn have been recorded by HM Land Registry since 2022. The most recent sale was on 5 Jul 2024. Most sales here are semi-detached homes, which have sold for an average of £600,833.

House prices on Grass Warren compared

AL6 postcode area£792,248

Welwyn£792,248

England & Wales£356,718

Average sale price over the last 12 months. Grass Warren has had fewer than two sales in that time, so it is left out. See all AL6 house prices.

Average sale price by year

Prices by property type

Type	Sales	Average price	Last sold
Semi-detached	3	£600,833	5 Jul 2024

Sold prices on Grass Warren

Address	Date	Price	Type	Tenure
31, Grass Warren AL6 0JL	5 Jul 2024	£595,000	Semi-detached	Freehold
29, Grass Warren AL6 0JL	7 Jun 2024	£707,500	Semi-detached	Freehold
3, Grass Warren AL6 0JJ	26 Jul 2022	£500,000	Semi-detached	Freehold

Sale prices are as recorded by HM Land Registry. Some sales (for example repossessions and company purchases) are listed but left out of the averages.

Buying on Grass Warren?

Crime and flood risk near Grass Warren

Crime

14 crimes were reported within about a mile of Grass Warren in August 2026.

Crime level compared with the rest of England (10 = lowest crime):

12345678910

Lower crime than about 60% of neighbourhoods in England, based on recorded crime rates (English Indices of Deprivation 2025).

Violence & sexual offences	9
Anti-social behaviour	3
Public order	2

Source: data.police.uk. Locations are approximate and cover the surrounding area, not just this street.

Flood risk

Grass Warren is in or near 5 Environment Agency flood areas:

River Mimram at Welwyn Flood warning area
River Mimram from Tewin to Hertford Flood warning area
River Mimram in Hertfordshire Flood alert area
River Beane catchment Flood alert area
River Lee at Hertford Flood alert area

Flood warning areas cover places at risk from rivers and the sea. Surface water risk isn't included. Check the long-term flood risk for a postcode on GOV.UK.

Schools near Grass Warren

School	Type	Ages	Ofsted	Distance
Tewin Cowper Church of England Voluntary Aided Primary School 122 pupils	Primary Church of England	4–11	Report	0.2 mi
Springmead Primary School 248 pupils	Primary	3–11	Good Report	0.9 mi
The Holy Family Catholic Primary School 211 pupils	Primary Roman Catholic	3–11	Report	1.1 mi
Watchlytes Primary School 158 pupils	Primary	3–11	Inadequate Report	1.2 mi
Ridgeway Academy 875 pupils	Secondary	11–18	Report	1.2 mi
Waterside Academy 166 pupils	Primary	3–11	Good Report	1.2 mi
Panshanger Primary School 240 pupils	Primary	3–11	Good Report	1.3 mi
St John's CofE Primary School 224 pupils	Primary Church of England	3–11	Report	1.5 mi

Source: Department for Education (Get Information about Schools) and Ofsted. Grades are from each school's last graded inspection; newer inspections use report cards without a single overall grade, so check the full report. Distances are straight-line. Check catchment areas with the local council.

Getting around and local GPs

Train stations

Welwyn North station 1.7 mi · 34 min walk
Welwyn Garden City station 2.2 mi · 44 min walk
Hertford North station 2.9 mi · 59 min walk

Nearest bus stops

Grasswarren Estate (N-bound, School Lane) 2 min walk
Grasswarren Estate (S-bound, School Lane) 4 min walk
Rose and Crown PH (opp, Upper Green Road) 6 min walk
Rose and Crown PH (nr, Upper Green Road) 6 min walk

GP surgeries

Hall Grove Group Practice
4 Hall Grove, Welwyn Garden City · 2.0 mi
Peartree Lane Surgery
110 Peartree Lane, Welwyn Garden City · 2.1 mi
The Garden City Practice
Birdcroft Road, Welwyn Garden City · 2.5 mi
Spring House Health
Spring House Site, Ascots Lane, Welwyn Garden City · 2.6 mi

Sources: Department for Transport (NaPTAN) and NHS England practice data. Walking times are estimates from straight-line distance.

Area profile

Deprivation

12345678910

This neighbourhood is in decile 7 of 10 on the English Indices of Deprivation 2025, where 1 is the most deprived 10% of areas in England and 10 the least deprived.

Income: decile 8 of 10 · Crime: decile 7 of 10.

Homes

	Here	Eng & Wales
Owned	77.3%	62.5%
Private rented	11.9%	20.3%
Social rented	10.8%	17.1%
Households	1,050

People

	Here	Eng & Wales
Under 15	15.6%	17.4%
Aged 15–64	61.4%	64.1%
Aged 65+	22.9%	18.6%
Residents	2,641

Broadband

	Here	UK
Superfast (30Mbit+)	100%	95%
Ultrafast (300Mbit+)	97%	80%
Gigabit-capable	97%	80%

Share of homes on this street's postcodes that can get each speed. UK figure is the average across all postcodes. Source: Ofcom Connected Nations.

Neighbourhood figures cover the surrounding Lower Layer Super Output Area (about 1,500 residents). Sources: Census 2021 (ONS) and the English Indices of Deprivation 2025.

Nearby streets in AL6

See all streets in Welwyn All streets in AL6