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Flat, 21 Castilian Street, Northampton, NN1 1JS

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Overview

About Flat

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

Flat is a property in Northampton (NN1 1JS).

It changed hands recently, sold April 2026 for £330,000.

Before you decide

Everything you need to know about Flat

The true value, the hidden risks and the full sale history, in one report.

Signs of HMO activity in the areaLarger development activity nearby

Pick your report · from £14.99

One time fee only - money back guarantee

Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

No EPC on record

This property doesn't have an Energy Performance Certificate yet. An EPC is required to sell or let — and unlocks our automated valuation.

SDL Surveying

Get a survey for this property

Level 2 HomeBuyer Report

We've checked 10 risk factors against the available data for this property and believe a Level 2 HomeBuyer Report could be a suitable option for you.

Planning

Planning history

Applications and permits filed against Flat, 21 Castilian Street, Northampton, NN1 1JS, sourced from the PlanIt planning register.

Flat has no planning applications on record.

43

But the area is active

43 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.

Latest sale on Flat was the highest on Land Registry record across the postcode.

Last sold (2026)

£330,000

Recorded with HM Land Registry.

Sales timeline

  1. 22 April 2026Most recent

    £330,000

Median price across the last 5 sales in NN1 1JS: £225,000 (2025–2016).

Before you decide

Everything you need to know about Flat

The true value, the hidden risks and the full sale history, in one report.

Signs of HMO activity in the areaLarger development activity nearby

Pick your report · from £14.99

One time fee only - money back guarantee

Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£142k

10 Saxon Court, Flat 1, St Peters Street

NN1 1FD

Flat
£137k

10 Saxon Court, Flat 2, St Peters Street

NN1 1FD

Flat
£149k

10 Saxon Court, Flat 3, St Peters Street

NN1 1FD

Flat
£169k

14 Saxon Court, Flat 1, St Peters Street

NN1 1FD

Flat
£135k

14 Saxon Court, Flat 2, St Peters Street

NN1 1FD

Flat
£168k

14 Saxon Court, Flat 3, St Peters Street

NN1 1FD

Flat
£134k

14 Saxon Court, Flat 4, St Peters Street

NN1 1FD

Flat
£169k

14 Saxon Court, Flat 5, St Peters Street

NN1 1FD

Flat
Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the Northampton district page.
Full Northampton report

Crime

571/mo

Steady year-on-year across the wider district.

Nearest stop

0.1 km

Post Office — bus stop.

Closest school

0.8 km

Spring Lane Primary School. 32 schools nearby.

Go deeper on the local area

A Local Area report breaks down crime, transport links, schools and air quality in depth.

Noise

Road noise across the postcode

Modelled day and night-time noise levels around NN1 1JS from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for NN1 1JS

Daytime· 07:00 – 23:00

57.0dB

Moderate
Night-time road noise heatmap for NN1 1JS

Night-time· 23:00 – 07:00

47.6dB

Low
55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about Flat, 21 Castilian Street, Northampton, NN1 1JS. Each answer is also embedded as structured data for search engines.