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© 2026 UK House Prices. Data sourced from HM Land Registry.

Contains HM Land Registry data © Crown copyright and database right 2026. Licensed under the Open Government Licence v3.0.

Area guide

AL9 area guide — property prices & local market

Everything you need to know about buying property in the AL9 postcode area, covering Hatfield and surrounding areas. All price data sourced from HM Land Registry — updated July 2026.

AL9 area price snapshot

Average price

£457,965

Median price

£400,000

5-year trend

+23.3%

Total sales

5,692

The AL9 area has 328 individual postcodes with 5,692 registered sales. Prices are +15.4% above the national average, with the largest concentration in Hatfield. The five-year price movement is +23.3%.

About Hatfield

A Hertfordshire town with fast trains to London Kings Cross, a large university campus and a mix of modern and traditional housing near the A1(M).

🚆 Main station

Hatfield

⏱️ London commute

~25 min by train

View full Hatfield property data →

Market context

AL9 averages £457,965, placing it in the upper-mid range. This tier often attracts a mix of professionals, families and investors, with prices +15.4% above the national average. The dataset includes 5,692 recorded sales across 328 postcodes.

The five-year price trend in AL9 is +23.3%, significantly outpacing many other areas. This level of growth may reflect improving local amenities, transport links or broader regeneration.

Buying tips for AL9

  • ⏱️Timing matters in competitive markets. Upper-mid areas often see properties sell quickly. Use the transaction count and recent sale dates on this site to gauge market speed in AL9.
  • 🚆Factor in commuting costs. Upper-mid prices often reflect transport links. Check train season ticket costs and journey times alongside property prices for a full picture.
  • 🧮Factor in Stamp Duty. Use the Stamp Duty Calculator to estimate purchase costs based on the average price in AL9.
  • 🏘️Explore Hatfield. Much of the AL9 activity centres on Hatfield. Check the town-level data for more granular market analysis.
  • 💡Check individual postcodes. Average prices can mask significant variation between postcodes in the AL9 area. Browse the individual postcode pages to find properties that match your budget.
  • 💡Compare asking prices to sold prices. Use the Asking Price Checker to see whether a listing price aligns with local sold-price evidence.
  • 💡Use sold prices as evidence, not valuation. Historical data helps you understand market trends but does not replace a professional valuation by a qualified surveyor.

Top postcodes in AL9

AL9 7NN

£149,010 avg · 131 sales

AL9 7NJ

£159,023 avg · 125 sales

AL9 5DE

£187,144 avg · 91 sales

AL9 5HB

£243,901 avg · 78 sales

AL9 7EL

£207,983 avg · 78 sales

AL9 5ET

£300,303 avg · 72 sales

AL9 5EG

£194,741 avg · 70 sales

AL9 5DB

£267,453 avg · 63 sales

AL9 5HA

£240,464 avg · 61 sales

View all 328 postcodes in AL9 →

Useful tools for AL9 buyers

🧮

Stamp Duty ~£12,898

Avg £457,965 in AL9

Full guide →

📊

Asking Price Checker

Compare asking prices with sold-price evidence

📖

Stamp Duty Guide

Complete 2025 SDLT, LTT & LBTT guide

⚖️

Location Comparison

Compare AL9 with other areas

🏘️

Hatfield data

Full town-level property statistics

About this guide

This AL9 area guide is based on HM Land Registry Price Paid Data, covering registered residential property sales in England and Wales from January 1995 onwards. All figures are historical sold prices, not current valuations or asking prices.

Data last updated: July 2026 · View methodology

Frequently asked questions

What is the average house price in AL9?

The average sold price in the AL9 postcode area is £457,965, based on 5,692 HM Land Registry transactions. The largest town in this area is Hatfield.

How do AL9 house prices compare to the UK average?

Properties in AL9 average £457,965, which is +15.4% above the national average of £396,803 for England and Wales.

Why is the median price in AL9 lower than the average?

The median price (£400,000) is 12.7% below the average (£457,965), suggesting a mix of property types or a few high-value sales pulling the mean upward. This is common in areas with both affordable and premium housing.

How have AL9 house prices changed over 5 years?

Prices in AL9 have moved +23.3% over five years, reflecting broader UK house price growth. The large sample size gives confidence in this trend.

Are these area guide prices valuations or asking prices?

No. All figures on this page are historical completed sale prices from HM Land Registry Price Paid Data. They are not current valuations, estate agent asking prices, or financial advice. Always seek professional advice before making property decisions.

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