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St Marys Avenue, Northwood

MyStreetCheck free street report: St Marys Avenue, Northwood · 31 October 2026 · www.mystreetcheck.co.uk/northwood-hertfordshire/st-marys-avenue/

House prices, sold prices and local information for HA6 3AZ, HA6 3AY.

Average price (last 12 months)
£1,225,000
1 sale
Average price (since 2016)
£1,091,231
13 sales
Price range
£880k – £1.5m
lowest to highest sale
Last sale
8 May 2026
HA6 3AY

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At a glance

House prices£1.09m averageSince 2016 (few recent sales) CrimeLower than averageLower crime than about 90% of neighbourhoods in England DeprivationLess deprived than mostDecile 10 of 10 (10 = least deprived) Flood riskIn a flood warning areaCheck the GOV.UK long-term risk Nearest station10 min walkNorthwood Underground Station Schools1 rated Good or betterWithin 1.5 miles Ultrafast broadband100% of homesNational average 80% Freehold or leaseholdAll freeholdAcross 13 Land Registry sales Conservation areaChecking…Planning designations Green beltChecking…Planning designations Listed buildingsChecking…Within about 200 m Planning applicationsChecking…Within 500 m, last 90 days

13 property sales on St Marys Avenue, Northwood have been recorded by HM Land Registry since 2016. In the last 12 months 1 home sold here for an average of £1,225,000. Most sales here are detached homes, which have sold for an average of £1,091,231. Recorded sale prices on St Marys Avenue range from £880,000 to £1,501,000. Every home sold here was sold freehold.

House prices on St Marys Avenue compared

HA6 postcode area£1,005,866
Northwood£1,795,015
England & Wales£358,701

Average sale price over the last 12 months. St Marys Avenue has had fewer than two sales in that time, so it is left out. See all HA6 house prices.

Average sale price by year

2016: £1,001,500 (2 sales)2016£1m2018: £1,057,000 (1 sales)2018£1.06m2019: £1,045,000 (2 sales)2019£1.05m2020: £1,075,000 (2 sales)2020£1.08m2021: £1,100,000 (1 sales)2021£1.1m2023: £1,227,000 (3 sales)2023£1.23m2025: £880,000 (1 sales)2025£880k2026: £1,225,000 (1 sales)2026£1.23m

Tenure: 100% freehold and 0% leasehold across 13 recorded sales.

Prices by property type

TypeSalesAverage priceLast sold
Detached13£1,091,2318 May 2026

Sold prices on St Marys Avenue

AddressDatePriceTypeTenure
53, St Marys Avenue HA6 3AY 8 May 2026£1,225,000 DetachedFreehold
2, St Marys Avenue HA6 3AZ 8 Jan 2025£880,000 DetachedFreehold
41, St Marys Avenue HA6 3AY 17 Nov 2023£1,055,000 DetachedFreehold
13, St Marys Avenue HA6 3AY 26 Sep 2023£1,125,000 DetachedFreehold
38, St Marys Avenue HA6 3AZ 24 Aug 2023£1,501,000 DetachedFreehold
35, St Marys Avenue HA6 3AY 22 Mar 2021£1,100,000 DetachedFreehold
31, St Marys Avenue HA6 3AY 11 Dec 2020£1,175,000 DetachedFreehold
12, St Marys Avenue HA6 3AZ 10 Sep 2020£975,000 DetachedFreehold
17, St Marys Avenue HA6 3AY 8 Oct 2019£1,140,000 DetachedFreehold
14, St Marys Avenue HA6 3AZ 11 Jul 2019£950,000 DetachedFreehold
20, St Marys Avenue HA6 3AZ 16 Mar 2018£1,057,000 DetachedFreehold
4, St Marys Avenue HA6 3AZ 2 Sep 2016£1,080,000 DetachedFreehold
6, St Marys Avenue HA6 3AZ 29 Feb 2016£923,000 DetachedFreehold

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.

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Crime and flood risk near St Marys Avenue

Crime

66 crimes were reported within about a mile of St Marys Avenue in August 2026.

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

12345678910

Lower crime than about 90% of neighbourhoods in England, based on recorded crime rates (English Indices of Deprivation 2025).

Anti-social behaviour19
Violence & sexual offences11
Drugs7
Other theft7
Shoplifting7
Burglary6

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

Flood risk

St Marys Avenue is in or near 3 Environment Agency flood areas:

  • River Pinn and Woodridings Stream Flood alert area
  • Middle River Colne Flood alert area
  • River Colne at Watford Flood warning 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 St Marys Avenue

SchoolTypeAgesOfstedDistance
St Helen's School 1,097 pupils Other independent school 3–19 Report 0.3 mi
St Martin's School 337 pupils Other independent school 3–13 Report 0.4 mi
Frithwood Primary School 374 pupils Primary 3–11 Report 0.4 mi
Eastbury Farm Primary School 346 pupils Primary 3–11 Report 0.6 mi
Northwood College for Girls GDST 814 pupils Other independent school 3–19 Report 0.6 mi
Holy Trinity CofE Primary School 211 pupils Primary Church of England 2–11 Good Report 0.6 mi
St John's School 266 pupils Other independent school 3–11 Report 0.9 mi
Hillside Junior School 210 pupils Primary 7–11 Report 0.9 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, shops and health

Train, tram & metro stations

  • Carpenders Park station 1.8 mi · 36 min walk
  • Hatch End station 2.5 mi · 49 min walk
  • Bushey station 2.5 mi · 50 min walk
  • Northwood Underground Station 0.5 mi · 10 min walk
  • Moor Park Underground Station 0.9 mi · 18 min walk

Nearest bus stops

  • Dene Road (HA6) (Stop G, GREEN LANE) 9 min walk
  • Dene Road (HA6) (Stop H) 9 min walk
  • Northwood (Stop D, GREEN LANE) 9 min walk
  • Northwood (Stop C, GREEN LANE) 10 min walk

GP surgeries

  • Eastbury Surgery
    3 Eastbury Road, Northwood · 0.4 mi
  • Mountwood Surgery
    Rickmansworth Road, Northwood · 0.8 mi
  • Acre Surgery
    76-78 Pinner Road, Northwood · 1.1 mi
  • Carepoint Practice
    Northwood Health Centre, Pinner Road, Northwood · 1.1 mi

Supermarkets

  • Cook Cook Northwood · 0.5 mi
  • Tesco Express Tesco Northwood Express · 0.5 mi
  • Waitrose Waitrose Northwood · 0.5 mi
  • Asda Express Asda Sandy Lodge Express Petrol · 1.0 mi

Pharmacies

  • Sharman's Chemist · 0.5 mi
  • Boots · 0.5 mi
  • Carter Chemist · 0.8 mi

Dentists

  • Station Approach (dental Surgery) · 0.5 mi
  • The Dental Design Studio · 0.6 mi
  • Dental Centre Northwood Hq · 0.6 mi

Sources: Department for Transport (NaPTAN), NHS England organisation data, and GEOLYTIX Retail Points (open data). Walking times are estimates from straight-line distance.

Area profile

Deprivation

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This neighbourhood is in decile 10 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.

Income10 of 10
Employment10 of 10
Education and skills10 of 10
Health and disability10 of 10
Crime10 of 10
Access to housing and services7 of 10
Living environment10 of 10

Each domain ranked in deciles across England (10 = least deprived).

Homes

HereEng & Wales
Owned88.4%62.5%
Private rented11.1%20.3%
Social rented0.5%17.1%
Households783

People

HereEng & Wales
Under 1516.9%17.4%
Aged 15–6459.5%64.1%
Aged 65+23.6%18.6%
Residents2,292

Broadband

HereUK
Superfast (30Mbit+)100%95%
Ultrafast (300Mbit+)100%80%
Gigabit-capable100%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.

Mobile signal

HereEng & Wales
4G indoors, all 4 networks96%89%
4G indoors, at least 1 network100%100%
4G outdoors, all 4 networks100%99%
Calls indoors, all 4 networks97%92%

Share of homes across Three Rivers with good coverage (Jul 2025). Signal varies street by street; check your exact address on Ofcom's checker. 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.

Energy ratings and home sizes on St Marys Avenue

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Who lives around St Marys Avenue

Ethnic group

HereThree Rivers
Asian, Asian British or Asian Welsh58.2%15.2%
White32.7%77.1%
Mixed or Multiple ethnic groups3.6%3.6%
Other ethnic group3.2%1.7%
Black, Black British, Black Welsh, Caribbean or African2.3%2.4%

Religion

HereThree Rivers
Hindu30.2%8.3%
Christian24.6%47.6%
Muslim14.6%3.7%
No religion11.2%30.8%
Not answered5%5.6%
Jewish4.8%1.6%
Sikh4.6%0.9%
Other religion4.2%0.9%

Country of birth

HereThree Rivers
Born in the UK63.6%81%
Born outside the UK36.4%19%

Highest qualification

HereThree Rivers
Level 4 qualifications and above66.2%42.7%
Level 3 qualifications11.3%15.3%
Level 2 qualifications10%13.1%
No qualifications6.9%13.3%
Level 1 and entry level qualifications3.4%8.7%
Apprenticeship1.2%4.4%
Other qualifications1%2.4%

General health

HereThree Rivers
Very good health55.2%53.7%
Good health33.3%32.4%
Fair health9.1%10.4%
Bad health1.9%2.8%
Very bad health0.5%0.8%

Cars or vans per household

HereThree Rivers
2 cars or vans in household46.1%33.7%
1 car or van in household32.6%39.8%
3 or more cars or vans in household17.5%14%
No cars or vans in household3.8%12.5%

Source: Census 2021 (ONS), via Nomis. Percentages of usual residents or households, as recorded in March 2021.

Figures cover the surrounding neighbourhood (Lower Layer Super Output Area, about 1,500 residents). Full demographics of Three Rivers.

Planning and heritage near St Marys Avenue

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Noise, radon and ground hazards

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Planning applications near St Marys Avenue

Recent planning applications around St Marys Avenue from the council's planning register. Choose how far to look:

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Council tax here

Three Rivers Band D is £2,422 a year (Band A £1,615). See every band.

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