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21 Grenfell Town, Bonymaen, Swansea, SA1 7AE

Estimated value

£120,000

  • Since the 1997 sale (£36,000)+233%
  • Against SA1 7AE's recent median (£87,000)+38%

Newest record on this page: July 2025. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation
Property type
Mid terrace
Habitable rooms
4
From EPC
Floor area
82 m²
883 sq ft
Energy rating
E
Score 44
Council tax
Band A
Tenure
Private Rental
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Valuation

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

£120,000

  • Against its 1997 sale (£36,000)+233%
  • Against SA1 7AE's recent median (£87,000)+38%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 21 Grenfell Town is modelled from its 82 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in SA1 7AE. 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

    82 m² from the EPC lodged in September 2013

  • Sales of this home

    1 sale recorded, the latest in 1997

  • Recent sales in SA1 7AE

    5 sales, median £87,000 (2025–2022)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: July 2025Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
PlanningNone on this homeFull history, plus nearby schemes
Flood riskNot shownIncluded
Price

Sales history & valuation

Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.

21 Grenfell Town's estimated value is more than triple its earliest registered sale price (1997).

Sales timeline

  1. 24 February 1997Most recent

    £36,000

Median price across the last 5 sales in SA1 7AE: £87,000 (2025–2022).

Risks

What this page doesn't show

1 potential issue has already been flagged for 21 Grenfell Town, Bonymaen, Swansea, SA1 7AE. The detail, evidence and what to ask about it are in the Risks Report.
  • Larger development activity nearbyIn report
  • Flood risk from rivers, sea and surface waterIn report
  • Subsidence and ground-stability signalsIn report
  • Refusals, enforcement and big schemes nearbyIn report

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Overview

About 21 Grenfell Town

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

21 Grenfell Town is a mid-terrace house in Bonymaen, Swansea, Swansea (SA1 7AE). It has a recorded floor area of 82 m² (around 883 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (September 2013) shows an E (score 44), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 82), a 3-band jump. The latest certificate is from September 2013, so improvements made since then won't be reflected.

Held since February 1997 — that's 29 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £120,000 sits 233.3% above the 1997 sale of £36,000. On a £-per-square-foot basis, the last sale (£41/sq ft) was about 60.8% below the postcode norm. At 82 m² it's 20.6% larger than the typical home in the postcode (68 m² median across 19 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 84% of similar EPCs).

Before you decide

Everything you need to know about 21 Grenfell Town

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

Larger development activity nearby

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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.

Recommended upgrades on file would lift this property by multiple EPC bands.

EPC Expired

This certificate is over 10 years old and is no longer valid.Expired 24 Sept 2023

Current Certificate
Sept 2013

EPC Rating

A
B
C
D
E
E44
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Very Poor
Windows
Average
CO2 Emissions
5.1 t/year
Occupancy
Rented

Certificate validity

Expired on 24 September 2023

New assessment needed to sell or let
Planning

Planning history

Applications and permits filed against 21 Grenfell Town, Bonymaen, Swansea, SA1 7AE, sourced from the PlanIt planning register.

21 Grenfell Town has no planning applications on record.

3

But the area is active

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

On the street

Versus other Grenfell Town homes

Four headline reads against 19 similar houses on this street, drawn from the latest EPC and Land Registry data.

21 Grenfell Town is notably below the street on price per m².

Price per m²

£439

Street avg £1,257

Strongly below

Floor Area

82 m²

Street avg 68 m²

Strongly above

Habitable Rooms

4 rooms

Street avg 4 rooms

On par

CO₂ Emissions

5.1 t/year

Street avg 3.4 t/year

Strongly below
Area

The neighbourhood at a glance

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

Crime

580/mo

Steady year-on-year across the wider district.

Nearest stop

0.1 km

Pentrechwyth Road — bus stop.

Nearest stops

  • Pentrechwyth RoadBus stop91m
  • Pentrechwyth RoadBus stop94m
  • Gwyndy StoresBus stop201m
  • Pen-y-GarnBus stop365m

Most reported crime locally

  • Violence & Sexual Offences3,276 reports35%
  • Anti-social Behaviour1,210 reports13%
  • Shoplifting1,135 reports12%
  • Public Order981 reports11%

Go deeper on the local area

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

SDL Surveying

Get a survey for this property

Level 3 Building Survey

Victorian-eraMid-Terrace HouseEPC EPre-1919 build

Because the property was built before 1919, we believe a Level 3 building survey should be considered.

From £820 · Includes VAT

Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£120k

1 Belleisle Apartments, Phoebe Road, Copper Quarter, Pentrechwyth

SA1 7FW

Flat
£118k

1 Caernarvon Way, Bonymaen

SA1 7HN

£118k

1 Chirk Gardens, Bonymaen

SA1 7HU

£118k

1 Criccieth Place, Winch Wen

SA1 7DZ

£116k

1 Clyro Court, Winch Wen

SA1 7HS

£125k

1 Candleston Place, Bonymaen

SA1 7JB

£127k

1 Cilgerran Place, Winch Wen

SA1 7EB

£112k

1 Chepstow Place, Bonymaen

SA1 7HP

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Method

How to read this page

Where every figure above comes from, how current it is and what it can't tell you.
Valuation method in detail
How the estimate is made
The estimate for 21 Grenfell Town is modelled from its 82 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in SA1 7AE. 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. 1 sale is recorded for 21 Grenfell Town. 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 Grenfell Town was lodged in September 2013 at band E and expired in September 2023, so a new one is needed to sell or let. Floor area, heating and insulation details on this page come from it.
Planning records
Planning applications are collected from local authority registers through PlanIt. None is matched to 21 Grenfell Town. 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 16 months, which places each incident at an approximate point. Schools and stops are measured in a straight line from SA1 7AE.
Council tax band
21 Grenfell Town is in council tax band A. 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.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 21 Grenfell Town, Bonymaen, Swansea, SA1 7AE. Each answer is also embedded as structured data for search engines.

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