Model valuation£417,0008 Busby Close
Local market context
21 Castle Street, Newport, NP20 2DF
Estimated value
£169,000
- Since the 2024 sale (£120,000)+41%
- Against NP20 2DF's recent median (£135,000)+25%
Newest record on this page: May 2026. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.
Property type
Mid terrace
Habitable rooms
6
From EPC
Floor area
115 m²
1238 sq ft
Energy rating
D
Score 67
Council tax
Band B
Tenure
Private Rental
About this valuation
How the figure is worked out and what it's based on. If you know this home, you can tell other visitors what you think it's worth.
Our estimate
£169,000
- Against its 2024 sale (£120,000)+41%
- Against NP20 2DF's recent median (£135,000)+25%
Your note and figure are shown publicly on this page.
How the estimate is made
The estimate for 21 Castle Street is modelled from its 115 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in NP20 2DF. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
What it's based on
Floor area
115 m² from the EPC lodged in May 2026
Sales of this home
2 sales recorded, the latest in 2024
Recent sales in NP20 2DF
5 sales, median £135,000 (2025–2018)
This page or the full report?
| Data | This page | Full report |
|---|---|---|
| Sales | Latest sale shown: August 2025 | Latest available records, read when you order |
| Valuation | Estimate from the last refresh | Analysed against comparable sales |
| Planning | None on this home | Full history, plus nearby schemes |
| Flood risk | Not shown | Included |
Sales history & valuation
Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.
21 Castle Street's sale-price growth has lagged the wider UK trajectory across its history on file.
Sales timeline
2 May 2024Most recent
£120,000
-1.6%over 17 years24 November 2006
£122,000
Median price across the last 5 sales in NP20 2DF: £135,000 (2025–2018).
Nearby sales in NP20 2DF
What this page doesn't show
1 potential issue has already been flagged for 21 Castle Street, Newport, NP20 2DF. The detail, evidence and what to ask about it are in the Risks Report.
- Signs of HMO activity in the areaIn report
- Flood risk from rivers, sea and surface waterIn report
- Subsidence and ground-stability signalsIn report
- Refusals, enforcement and big schemes nearbyIn report
One time fee only - money back guarantee
About 21 Castle Street
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
21 Castle Street is a mid-terrace house in Newport (NP20 2DF). It has a recorded floor area of 115 m² (around 1238 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (May 2026) shows a D (score 67), on the cusp of jumping into the C band. When first surveyed in September 2013 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Very Poor to Average, hot-water efficiency went from Average to Good and lighting went from Good to Very Good; while window efficiency dropped from Average to Poor. The recommended improvements would lift it to B (score 81), a 2-band jump. This certificate was lodged in the last six months, so the rating reflects current condition.
Today's modelled estimate of £169,000 is 40.8% above the 2024 sale price. On a £-per-square-foot basis, the last sale (£97/sq ft) was about 22% above the typical sold price in the postcode. Most recent transfer: May 2024 at £120,000.
Before you decide
Everything you need to know about 21 Castle Street
The true value, the hidden risks and the full sale history, in one report.
Signs of HMO activity in the area
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The data behind every report
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
Recommended upgrades on file would lift this property by multiple EPC bands.
Current Certificate(1 of 4)
May 2026
EPC Rating
A
B
C
D
D67
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Poor
CO2 Emissions
4.1 t/year
Occupancy
Rented
Certificate validity
Valid until 8 May 2036
Property Improvements
Changes detected from historical EPC data
Jun 2014from Sept 2013
Heating Controls
FullProg + Stat
Heating controls changed
Hot Water
Main (No Stat)Main System
Hot water system upgraded
Dec 2014from Jun 2014
Heating Controls
Prog + StatFull
Heating controls upgraded for better temperature management
Hot Water
AverageGood
Hot water efficiency improved
May 2026from Dec 2014
EPC improved fromE53toD67
Roof Insulation
UninsulatedWell Insulated
Loft insulation installed or upgraded to 250mm+
Low Energy Lighting
50%100%
More low energy lighting installed
Planning history
Applications and permits filed against 21 Castle Street, Newport, NP20 2DF, sourced from the PlanIt planning register.
21 Castle Street has no planning applications on record.
6
But the area is active
6 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Versus other Castle Street homes
Four headline reads against 19 similar houses on this street, drawn from the latest EPC and Land Registry data.
21 Castle Street is notably below the street on years held.
Price per m²
£1,043
Street avg £885
Floor Area
115 m²
Street avg 101 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
4.1 t/year
Street avg 4.9 t/year
The neighbourhood at a glance
A condensed read of the local area. Each tile links through to the full breakdown on the Newport district page.
Crime
321/mo
Falling year-on-year across the wider district.
Nearest stop
0.2 km
Library — bus stop.
Nearest stops
- LibraryBus stop214m
- The Blaina WharfBus stop216m
- Cambrian InnBus stop222m
- Blaina WharfBus stop247m
Most reported crime locally
- Violence & Sexual Offences1,438 reports32%
- Anti-social Behaviour839 reports19%
- Public Order524 reports12%
- Shoplifting466 reports10%
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Get a survey for this property
Level 3 Building Survey
Victorian-eraMid-Terrace HouseEPC DPre-1919 build
Because the property was built before 1919, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Similar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
Property research, connected
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Explore sale histories, valuations, energy ratings and local areas. Ask the assistant to connect the details and take your research further.
Start your researchHow to read this page
Where every figure above comes from, how current it is and what it can't tell you.
- How the estimate is made
- The estimate for 21 Castle Street is modelled from its 115 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in NP20 2DF. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
- Where sold prices come from
- Sold prices are HM Land Registry Price Paid Data, which covers residential sales in England and Wales since 1995. 2 sales are recorded for 21 Castle Street. Sales normally appear two to three months after completion, so the most recent ones take time to show up anywhere.
- Reading the EPC
- Energy Performance Certificates rate homes from A (most efficient) to G and last 10 years. The latest one for 21 Castle Street was lodged in May 2026 at band D and is valid until May 2036. 4 certificates are on record, which shows how the home has changed.
- Planning records
- Planning applications are collected from local authority registers through PlanIt. None is matched to 21 Castle Street. Councils sometimes file applications under a different address format, and applications on neighbouring land aren't listed here; the report covers both.
- Area figures
- Crime is police-recorded street-level data over the last 14 months, which places each incident at an approximate point. Schools and stops are measured in a straight line from NP20 2DF.
- Council tax band
- 21 Castle Street is in council tax band B. Bands are set by the Valuation Office Agency from historic values (1 April 1991 in England, 1 April 2003 in Wales), not today's price; the amount you pay depends on the council's rate for the band.
Common questions
The questions buyers, sellers and homeowners most often ask about 21 Castle Street, Newport, NP20 2DF. Each answer is also embedded as structured data for search engines.
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Keep exploring
- Every home in NP20 2DFSold prices, values and energy ratings for the postcode
- NP 20 property marketPrices, postcodes, schools and transport across the district
- 21 Castle Street, Newport valuationHow the estimate is built and what moves it
- UK house price mapExplore prices by district, year by year
- Report on another addressLook up any home in England and Wales