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NestScope
CM23 3NH · Neighbourhood Report
© OpenStreetMap · © CARTO
Area Report
Last updated 13 JUN 2026

CM23 3NH

Neighbourhood Report

What's nearby — across walking, short-drive and school catchment distance. Data from official UK government sources.

NestScope Score
87/ 100

One of the most affluent neighbourhoods in England

Anchored on official IMD data — decile 10/10, ranked 31,342 of 32,844 neighbourhoods in England.

How this score is calculated
01 — Snapshot

Around CM23 3NH.

The large figure is how many we found nearby; the chip beside each label is that category’s NestScope score out of 100 — higher beats more of the UK.

Safety86/100
5crimes last month

IMD crime decile 9/10 · 5 crimes in 400m last month (residential-weighted: 2.3)

Crimes reported last month · UK Police API

Healthcare93/100
7GP & hospitals

IMD health decile 10/10 · 6 GP, 1 hospital, 7 dentists, pharmacy 0.6 mi within 1.5 mi

Nearest GP: SOUTH STREET SURGERY — 0.6 mi

Transport77/100

No rail stations within 0.5 miles · 29 bus stops nearby

Green space77/100
11green spaces

IMD environment decile 9/10 · 17.3 ha total — no proper park nearby

Nearest: Playing Field (0.28 ha) — 0.2 mi

Amenities86/100
17supermarkets

17 supermarkets within 2 mi — Waitrose, Tesco, East of England Co-operative, Aldi… — nearest 0.2 mi — library 0.9 mi

Nearest: Little Waitrose Shell Thorley — 0.2 mi

02 — Environment

Environment & risk near CM23 3NH.

Official risk flags for context — deliberately not part of the NestScope score (they’re categorical hazards, not amenities).

Flood risk
Zone 1 (low)

Flood Zone 1 — low risk (less than 1 in 1,000 annual chance) · Source: Environment Agency Flood Map for Planning

Zone 1
Zone 2
Zone 3
Air qualityWithin WHO guideline
7.9µg/m³

NO₂ annual mean · WHO guideline 10 · UK limit 40 · Source: DEFRA UK-AIR 2024

<10
10–20
20–30
30–40
≥40
Road noiseQuiet
51dB Lden

Road traffic, day-evening-night average · Source: DEFRA strategic noise mapping

<55
55–64
65–74
≥75
03 — House prices

Sold prices in CM23.

Average sold price by property type across the CM23 district, 202120264,449 sales.

£0£200k£400k£600k£800k202120222023202420252026
  • Detached
  • Semi-detached
  • Terraced
  • Flat
Detached£696k 3.0%
Semi-detached£472k 5.2%
Terraced£366k 0.1%
Flat£257k 2.1%

District-level averages (CM23) — broad enough to show a reliable trend. A single postcode usually sees too few sales to chart. Source: HM Land Registry Price Paid Data (Crown Copyright / OGL v3.0).

About CM23 3NH

CM23 3NH scores 87/100 on the NestScope Score, with its strongest showing in healthcare and safety — with SOUTH STREET SURGERY about 13 minutes' walk away. The breakdown below draws on official UK data covering schools, safety, healthcare, transport, environment and local amenities.

In national context, CM23 3NH is one of the most affluent neighbourhoods in England — IMD decile 10/10, ranked 31,342 of 32,844 neighbourhoods in England. The Index of Multiple Deprivation is the UK government's official measure of relative deprivation, refreshed roughly every five years. Housing pressure here is low (IMD housing decile 9/10).

There are 23 schools within the typical catchment area, including 2 rated Outstanding by Ofsted and 14 rated Good. The nearest school is Thorley Hill Primary School (Ofsted: Good), within a short walk.

There were 5 crimes reported on the surrounding streets in the most recent month, indicating a very low level of immediate-area crime.

Healthcare access is good, with 6 GP surgeries, 1 hospital and 7 dental practices in the wider neighbourhood. The nearest GP practice is SOUTH STREET SURGERY, about 13 minutes' walk away. The nearest hospital is HERTS AND ESSEX HOSPITAL, 1.0 mi away. A pharmacy is about 12 minutes' walk away.

There are no train or Tube stations near CM23 3NH. Bus services provide the main public transport, with 29 bus stops in the immediate area.

The location is in Flood Zone 1 (low risk — less than a 1 in 1,000 annual chance of river or sea flooding). road traffic noise is low (about 51 dB Lden).

There are 11 green spaces within walking distance, totalling 17.3 hectares of parks and outdoor space. The nearest is Playing Field (0.28 ha), about 3 minutes' walk away. It also lies just beside a Country Park (0.7 mi away), adding open countryside that isn't recorded as a formal park.

There are 17 supermarkets in the wider area, including Waitrose, Tesco, East of England Co-operative, Aldi and others. The nearest is Little Waitrose Shell Thorley, about 5 minutes' walk away. A public library is 0.9 mi away.

Sources: DfE/Ofsted, UK Police API, NHS ODS, NaPTAN, Environment Agency, Ordnance Survey, Natural England, DEFRA, Geolytix and Arts Council England. For an interactive map view, explore CM23 3NH on NestScope.

Data: DfE/Ofsted · UK Police API · NHS ODS · NaPTAN · Ordnance Survey · Geolytix. Crown Copyright / OGL. Look up any postcode: nestscope.uk/area/YOUR+POSTCODE — e.g. SW1A 1AA, M1 1AE, BS1 1HT.

NestScope

All data from publicly available UK government sources. Each dimension uses a category-appropriate radius (walking distance for crime and transport, school catchment, drive distance for healthcare). IMD context is the latest published English Indices of Deprivation (2019). This report is for informational purposes only.