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

Property type
Semi-detached
Habitable rooms
4
From EPC
Floor area
74 m²
797 sq ft
Energy rating
D
Score 68
Council tax
Band C
Tenure
Owner Occupied
Overview

About 18 St Illtyds Crescent

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

18 St Illtyds Crescent is a semi-detached house in St. Thomas, Swansea, Swansea (SA1 8HR). It has a recorded floor area of 74 m² (around 797 sq ft), construction records dating it to 1930-1949 and council tax band C. The latest certificate (August 2015) shows a D (score 68), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 84), a 2-band jump. The latest certificate is from August 2015, so improvements made since then won't be reflected.

Across 2015–2021, sale prices on this property compounded at 16.8% per year. Today's modelled estimate of £203,000 is 16% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£220/sq ft) was about 146.4% above the typical sold price in the postcode. Last sale on file: £175,000 in November 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.

Before you decide

Everything you need to know about 18 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

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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This certificate is over 10 years old and is no longer valid.Expired 04 Aug 2025

EPC Rating

A
B
C
D
D68
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Very Good
Windows
Average
CO2 Emissions
2.5 t/year
Occupancy
Owner Occupied
SDL Surveying

Get a survey for this property

Level 2 HomeBuyer Report

Early 20th centurySemi-Detached HouseEPC D

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.

From £545 · Includes VAT

Planning

Planning history

Applications and permits filed against 18 St Illtyds Crescent, St Thomas, Swansea, SA1 8HR, sourced from the PlanIt planning register.

18 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.

18 St Illtyds Crescent has more than doubled in price since the earliest registered sale in 2015.

Current estimate

£203,000

Modelled from EPC, postcode comparables and a sale-price growth of 16.8% per year over 6 years.

See how we calculated this
Last sold (2021)

£175,000

Growth on file: 16.8% per year over 6 years.

Sales timeline

  1. 26 November 2021Most recent

    £175,000

    +151.8%over 5 years

  2. 16 December 2015

    £69,500

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.

Floor Area for 18 St Illtyds Crescent lags the street by a wide margin.

Price per m²

£2,365

Street avg £1,287

Strongly above

Floor Area

74 m²

Street avg 95 m²

Strongly below

Habitable Rooms

4 rooms

Street avg 5 rooms

Strongly below

CO₂ Emissions

2.5 t/year

Street avg 4.7 t/year

Strongly above
Before you decide

Everything you need to know about 18 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.
£211k

1 Gelli Grafog, Port Tennant

SA1 8NZ

£195k

1 David Williams Terrace, Port Tennant

SA1 8NN

£195k

1 Kinley Street, St Thomas

SA1 8HE

1 bed1 bath
£191k

1 Grafog Street, Port Tennant

SA1 8NG

£218k

1 Elmhurst Crescent, St Thomas

SA1 8EA

3 bed1 bath
£184k

1 Glenroy Avenue, St Thomas

SA1 8DU

£178k

1 Elba Crescent, Crymlyn Burrows

SA1 8QQ

£172k

1 Bay View, St Thomas

SA1 8BB

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 18 St Illtyds Crescent, St Thomas, Swansea, SA1 8HR. Each answer is also embedded as structured data for search engines.