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21 St Illtyds Crescent, St Thomas, Swansea, SA1 8HR

Notable views
Property type
Semi-detached
Bedrooms
3
Bathroom
1
Floor area
79 m²
850 sq ft
Energy rating
C
Score 70
Council tax
Band C
Tenure
Owner Occupied
Overview

About 21 St Illtyds Crescent

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

21 St Illtyds Crescent is a three-bedroom semi-detached house in St. Thomas, Swansea, Swansea (SA1 8HR). It has a recorded floor area of 79 m² (around 850 sq ft), construction records dating it to 1950-1966 and council tax band C. Other recorded features include notable views, a conservatory and outbuildings. The latest certificate (May 2024) shows a C (score 70). The recommended improvements would push it to B (score 84).

Its energy rating outperforms most of the postcode (better than 83% of similar EPCs). Across 2005–2024, sale prices on this property compounded at 2.7% per year. On a £-per-square-foot basis, the last sale (£241/sq ft) was about 187.4% above the typical sold price in the postcode. Sold September 2024 for £205,000.

Specifications

What this property has

Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.

Inside

  • Bedrooms3
  • Bathrooms1
  • Dining roomYes
  • ConservatoryYes

Outside

  • Private gardenRear
  • OutbuildingsYes
  • Notable viewsYes
Before you decide

Everything you need to know about 21 St Illtyds Crescent

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 · every report is £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.

EPC Rating

A
B
C
C70
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
2.6 t/year
Occupancy
Owner Occupied
SDL Surveying

Get a survey for this property

Level 3 Building Survey

Mid 20th centurySemi-Detached HouseEPC CExtended multiple times (2+ extensions)Permanent outbuildings

Because the property has been extended more than once and has permanent outbuildings, we believe a Level 3 building survey should be considered.

From £885 · Includes VAT

Planning

Planning history

Applications and permits filed against 21 St Illtyds Crescent, St Thomas, Swansea, SA1 8HR, sourced from the PlanIt planning register.

21 St Illtyds Crescent has no planning applications on record.

53

But the area is active

53 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.

21 St Illtyds Crescent valuation sits well clear of the typical sold price in this postcode.

Current estimate

£218,000

Modelled from EPC, postcode comparables and a sale-price growth of 2.7% per year over 19 years.

See how we calculated this
Last sold (2024)

£205,000

Growth on file: 2.7% per year over 19 years.

Sales timeline

  1. 26 September 2024Most recent

    £205,000

    +66.7%over 19 years

  2. 7 August 2005

    £123,000

Median price across the last 5 sales in SA1 8HR: £120,000 (2025–2020).

On the street

Versus other St Illtyds Crescent homes

Four headline reads against 12 similar houses on this street, drawn from the latest EPC and Land Registry data.

Price per m² for 21 St Illtyds Crescent runs comfortably ahead of the street norm.

Price per m²

£2,595

Street avg £1,264

Strongly above

Floor Area

79 m²

Street avg 95 m²

Below

Habitable Rooms

5 rooms

Street avg 5 rooms

Above

CO₂ Emissions

2.6 t/year

Street avg 4.7 t/year

Above
Before you decide

Everything you need to know about 21 St Illtyds Crescent

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 · every report is £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.
£218k

1 Elmhurst Crescent, St Thomas

SA1 8EA

3 bed1 bath
£172k

1 Kilvey Terrace, St Thomas

SA1 8BA

2 bed
£148k

1 Balaclava Street, St Thomas

SA1 8BS

4 bed1 bath
£195k

1 Kinley Street, St Thomas

SA1 8HE

1 bed1 bath
£169k

1 Danygraig Road, Port Tennant

SA1 8LY

1 bed
£211k

1 Gelli Grafog, Port Tennant

SA1 8NZ

£195k

1 David Williams Terrace, Port Tennant

SA1 8NN

£191k

1 Grafog Street, Port Tennant

SA1 8NG

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

3/mo

Steady year-on-year across the wider district.

Nearest stop

0.1 km

St Illtyd's Crescent — bus stop.

Go deeper on the local area

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

FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 21 St Illtyds Crescent, St Thomas, Swansea, SA1 8HR. Each answer is also embedded as structured data for search engines.