Sold End of terrace

1 CASTLE STREET

SWANSEA, MUMBLES, SWANSEA SA3 4BH

2 beds 1,012 sq ft Listed 7 Feb 2012 (-5233d)

£209,500

Save

# 2 bedroom end of terrace house for sale (SA3 4BH)

## Property Details

| Key | Value |
|-----|-------|
| Address | 1 CASTLE STREET, SWANSEA, MUMBLES, SWANSEA SA3 4BH |
| Price | £209,500 |
| Bedrooms | 2 |
| Construction age | England and Wales: 1900-1929 |
| Floor area | 94 m² |
| Last sold | £77,950 Jun 2000 |

## EPC Rating & Upgrade Cost

- **Current rating:** E
- **Potential rating:** B
- **Current heating cost:** £1,416/year
- **Est. upgrade cost to C:** £27,775

### Recommendations
- A2 (£850 - £1,500)
- A3 (£1,500 - £2,700)
- B (£500 - £1,500)
- Q (£4,000 - £14,000)
- W2 (£4,000 - £6,000)
- N (£4,000 - £6,000)
- U (£3,500 - £5,500)

[View full EPC on gov.uk](https://find-energy-certificate.service.gov.uk/energy-certificate/6700-6145-0422-4422-3253)

## Description

ACCOMMODATION COMPRISES:

GROUND FLOOR

ENTRANCE

Double glazed uPVC front door to hall.

HALL

Radiator. Hardwood panelled door to lounge. Glass panelled door to living room. Staircase to first floor.

LOUNGE

11'5 x 10'2  Double glazed uPVC window to front. Edwardian style gas fire with stained surround. Period style radiator. Coved ceiling.

LIVING/DINING ROOM

13'3 x 11'0  Double glazed uPVC window to rear. Coal effect gas fire on slated hearth with stained surround. Stained beams to ceiling. Period style radiator. Glass panelled door to kitchen.

KITCHEN

12'0 x 7'0  max  Well fitted with range of wall and base units in Wedgewood blue and Beech effect Trim granite effect work surfaces. Plumbed for dishwasher and washing machine. Stainless steel sink unit. Double glazed uPVC window to side.

REAR LOBBY

Double glazed uPVC door to the rear garden.

BATHROOM

Three piece suite in white,  w.c and wash hand basin set into white Slimline cabinets. Half tiled walls, fully tiled around bath with glass screen and shower unit over. Heated towel rail. Double glazed uPVC window to rear.

FIRST FLOOR LANDING

BEDROOM ONE

13'4 x 10'0  Radiator. Airing cupboard with wall mounted gas central heating boiler. Double glazed uPVC window to rear with views to the castle.

EN-SUITE

Comprising w.c. and wash hand basin in white. Green mosaic style ceramic wall tiling.

BEDROOM TWO

13'0 x 10'0  Double glazed uPVC window to front. Radiator.

EXTERNAL

Small walled frontage. Large level south west facing rear with fenced and walled boundaries, laid to paved B.B.Q terrace area, vegetable plot and generous secure off road parking accessed from Castle Road.

Note: All room sizes are approximate. Electrical, plumbing, central heating and drainage installations are noted in particulars on the basis of a visual inspection only. They have not been tested and no warranty of condition of fitness for purpose is implied by their inclusion. Potential purchasers are warned that they must make their own enquiries as to the condition of the appliances, installations or of any element of the structure of fabric of the property.

## Property Photos

- ![Front](/listings/photos/21801192/616979) - Front
- ![Lounge](/listings/photos/21801192/616980) - Lounge
- ![Living/dining room](/listings/photos/21801192/616981) - Living/dining room
- ![Kitchen](/listings/photos/21801192/616984) - Kitchen
- ![Garden](/listings/photos/21801192/616986) - Garden
- ![Parking area](/listings/photos/21801192/616988) - Parking area

## Floorplans

- ![Floor Plan](/listings/photos/21801192/616990) - Floor Plan

## EPC Graphs

- ![EPC 1](/listings/photos/21801192/616992) - EPC 1

## FENSA Certificates

This property has 4 FENSA certificate(s) on record.

### FENSA Certificate #10823246
- **Address:** 1 Castle Street, Mumbles, SA3 4BH
- **Certificate Issued:** 16/02/2015
- **Work Completed:** 07/02/2015
- **Items:** 1 window(s), 1 door(s)

### FENSA Certificate #13133772
- **Address:** 1 Castle Street, Mumbles, SA3 4BH
- **Certificate Issued:** 10/09/2018
- **Work Completed:** 08/08/2018
- **Items:** 2 window(s)

### FENSA Certificate #13043959
- **Address:** 1 Castle Street, Mumbles, SA3 4BH
- **Certificate Issued:** 23/07/2018
- **Work Completed:** 21/05/2018
- **Items:** 1 window(s)

### FENSA Certificate #13929452
- **Address:** 1 Castle Street, Mumbles, SA3 4BH
- **Certificate Issued:** 15/01/2020
- **Work Completed:** 19/12/2019
- **Items:** 1 window(s), 1 door(s)

## Sales History

*Recorded sales for this property. Data from Land Registry Price Paid.*

| Address | Price | Date | Type |
|---------|-------|------|------|
| 1 CASTLE STREET, MUMBLES, SWANSEA, SA3 4BH | £77,950 | 29/06/2000 | Terraced |

## Sold Comparables

*Same street and nearby sales within 0.25 miles. Data from Land Registry Price Paid. Last 5 years.*

| Address | Price | Date | Type |
|---------|-------|------|------|
| 12 CASTLE SQUARE, MUMBLES, SWANSEA, SA3 4BJ | £208,000 | 21/11/2025 | Terraced |
| 2 WINDSOR PLACE, MUMBLES, SWANSEA, SA3 4LG | £240,000 | 19/11/2025 | Terraced |
| [Same street] 16 CASTLE STREET, MUMBLES, SWANSEA, SA3 4BH | £260,000 | 31/10/2025 | Terraced |
| 11 KINGS ROAD, MUMBLES, SWANSEA, SA3 4AJ | £280,000 | 23/07/2025 | Terraced |
| 23 OAKLAND ROAD, MUMBLES, SWANSEA, SA3 4AQ | £456,500 | 18/03/2025 | Terraced |
| [Same street] 14 CASTLE STREET, MUMBLES, SWANSEA, SA3 4BH | £387,500 | 12/02/2024 | Terraced |
| 6 CHAPEL STREET, MUMBLES, SWANSEA, SA3 4NH | £340,000 | 09/10/2023 | Terraced |
| [Same street] 11 CASTLE STREET, MUMBLES, SWANSEA, SA3 4BH | £325,000 | 27/09/2023 | Terraced |
| 4 GOWER PLACE, MUMBLES, SWANSEA, SA3 4AB | £271,000 | 20/09/2023 | Terraced |
| 8 QUEENS ROAD, MUMBLES, SWANSEA, SA3 4AN | £280,000 | 16/08/2023 | Terraced |
| 4 VICTORIA AVENUE, MUMBLES, SWANSEA, SA3 4NQ | £285,000 | 04/08/2023 | Terraced |
| 15 QUEENS ROAD, MUMBLES, SWANSEA, SA3 4AW | £240,000 | 27/04/2023 | Terraced |
| 22 CHAPEL STREET, MUMBLES, SWANSEA, SA3 4NH | £461,000 | 28/11/2022 | Terraced |
| 57 NEWTON ROAD, MUMBLES, SWANSEA, SA3 4BL | £325,000 | 25/11/2022 | Terraced |
| 14 GOWER PLACE, MUMBLES, SWANSEA, SA3 4AB | £392,500 | 14/11/2022 | Terraced |
| 3 CASTLE SQUARE, MUMBLES, SWANSEA, SA3 4BJ | £290,000 | 28/10/2022 | Terraced |
| 3 OAKLAND ROAD, MUMBLES, SWANSEA, SA3 4AQ | £396,000 | 06/10/2022 | Terraced |
| 8 DUNNS LANE, MUMBLES, SWANSEA, SA3 4AA | £300,000 | 22/09/2022 | Terraced |
| [Same street] 2 CASTLE STREET, MUMBLES, SWANSEA, SA3 4BH | £341,000 | 13/09/2022 | Terraced |
| 7 OAKLAND ROAD, MUMBLES, SWANSEA, SA3 4AQ | £447,756 | 16/08/2022 | Terraced |
| 4 DUNNS CLOSE, MUMBLES, SWANSEA, SA3 4AF | £325,000 | 12/08/2022 | Terraced |
| 20 WOODVILLE ROAD, MUMBLES, SWANSEA, SA3 4AD | £345,000 | 12/08/2022 | Terraced |
| 114 CASTLE ROAD, MUMBLES, SWANSEA, SA3 5TA | £480,000 | 10/08/2022 | Terraced |
| 35 LANGLAND ROAD, MUMBLES, SWANSEA, SA3 4LX | £455,000 | 29/07/2022 | Terraced |

**Street average:** £328,375 (4 sales)
**Area average:** £340,888 (20 sales)

## Price vs local average

*Outcode + property type (HousePrices, last 2 years).*

- **Local average:** £274,533 (15 Terraced, SA3, 2024–2026)
- **Deviation:** -23.7%

## Rental Range

*ONS Price Index of Private Rents (Swansea). Low / Realistic / Optimistic = conservative / average / best case.*

- **Low:** £752/mo
- **Realistic:** £835/mo
- **Optimistic:** £919/mo

## Rental Comparables

*Residential lets from OpenRent and Rightmove for the area (same bedroom count). Use to validate rent estimates. Student lets are excluded.*

| Title | Rent | Beds | Distance | As seen on |
|------|------|------|------|------|
| 2 Bed Terraced House, Castle Square, SA3 | £1,200/mo | 2 | 0.02 miles | OpenRent |
| 2 Bed Penthouse, Newton Road, SA3 | £1,000/mo | 2 | 0.03 miles | OpenRent |
| 2 Bed Flat, Oystermouth Court, SA3 | £995/mo | 2 | 0.19 miles | OpenRent |
| 2 Bed Flat, Parkside, SA3 | £975/mo | 2 | 0.24 miles | OpenRent |
| 2 Bed Terraced House, Park Street, SA3 | £2,600/mo | 2 | 0.25 miles | OpenRent |
| 2 Bed Maisonette, Mumbles Road, SA3 | £1,200/mo | 2 | 0.43 miles | OpenRent |
| 2 Bed Terraced House, Hatherleigh Drive, SA3 | £995/mo | 2 | 0.54 miles | OpenRent |

**Average rent: £1,281/mo (7 listings)**

## 1% Rule

- **Rent ratio:** 0.48% (weak for cashflow)
- **Max investor price (0.8%):** £125,000
- **Target investor price (1%):** £100,000

*Monthly rent ÷ price. 1%+ = strong, 0.8–1% = okay, <0.8% = weak. Max investor price = rent ÷ 0.8% (Stoke-style target). Target investor price = rent ÷ 1% (strong cashflow band). Based on OpenRent comparables.*

## Rent-driven metrics

*Based on OpenRent comparables (median £1,000/mo).*

- **Gross yield:** 5.7%
- **Cost-to-rent:** 17.5×
- **Monthly cashflow:** £50/mo (75% LTV, 3.95% APR (5yr fixed), 25yr term)
- **Cash-on-cash ROI:** 1%

*Gross yield = annual rent as % of price (no costs). Cost-to-rent = price ÷ annual rent (from OpenRent comparables); under 14× = strong, 14–16× = acceptable, 17×+ = compressed. Cashflow = rent − mortgage − 10% maintenance − £25/mo compliance; assumes 75% LTV, 3.95% APR (5yr fixed), 25yr term. ROI = annual profit ÷ cash in (deposit + 4% purchase costs).*

## Price per Square Metre

- **£/m²:** £2,229/m²

## Capital growth trend

*Land Registry outcode average from sold prices: last 12 months vs 5y and 10y ago.*

- **5y growth:** -16.6%
- **10y growth:** 52.4%

## House Price Index (HM Land Registry)

*Official index for Swansea; Terraced series; as of March 2026.*

- **1y growth (index):** 1.9%
- **5y growth (index):** 26.7%
- **10y growth (index):** 58.9%

## Flood risk

- **Zone:** 1
- **Risk:** Low
- **Source:** Job (default Low)

[Check long-term flood risk (GOV.UK)](https://check-long-term-flood-risk.service.gov.uk/postcode)

Front Lounge Living/dining room Kitchen Garden Parking area

/ 6

Property details

Tenure

FREEHOLD

Floor area

94 m²

EPC rating

Year built

England and Wales: 1900-1929

Last sold

£77,950 Jun 2000

Price per m²

£2,229/m²

Local average

£274,533 (-23.7%)

Street crime

42 incidents within 1 mile (Mar 2026)

Key features

Modernised and extended
Two bedrooms
End terrace property
En-suite to bedroom one
Generous off road parking

Additional details

Parking: Yes
Garden: Yes

Description

ACCOMMODATION COMPRISES:

GROUND FLOOR

ENTRANCE
Double glazed uPVC front door to hall.

HALL
Radiator. Hardwood panelled door to lounge. Glass panelled door to living room. Staircase to first floor.

LOUNGE
11'5 x 10'2 Double glazed uPVC window to front. Edwardian style gas fire with stained surround. Period style radiator. Coved ceiling.

LIVING/DINING ROOM
13'3 x 11'0 Double glazed uPVC window to rear. Coal effect gas fire on slated hearth with stained surround. Stained beams to ceiling. Period style radiator. Glass panelled door to kitchen.

KITCHEN
12'0 x 7'0 max Well fitted with range of wall and base units in Wedgewood blue and Beech effect Trim granite effect work surfaces. Plumbed for dishwasher and washing machine. Stainless steel sink unit. Double glazed uPVC window to side.

REAR LOBBY
Double glazed uPVC door to the rear garden.

BATHROOM
Three piece suite in white, w.c and wash hand basin set into white Slimline cabinets. Half tiled walls, fully tiled around bath with glass screen and shower unit over. Heated towel rail. Double glazed uPVC window to rear.

FIRST FLOOR LANDING

BEDROOM ONE
13'4 x 10'0 Radiator. Airing cupboard with wall mounted gas central heating boiler. Double glazed uPVC window to rear with views to the castle.

EN-SUITE
Comprising w.c. and wash hand basin in white. Green mosaic style ceramic wall tiling.

BEDROOM TWO
13'0 x 10'0 Double glazed uPVC window to front. Radiator.

EXTERNAL
Small walled frontage. Large level south west facing rear with fenced and walled boundaries, laid to paved B.B.Q terrace area, vegetable plot and generous secure off road parking accessed from Castle Road.

Note: All room sizes are approximate. Electrical, plumbing, central heating and drainage installations are noted in particulars on the basis of a visual inspection only. They have not been tested and no warranty of condition of fitness for purpose is implied by their inclusion. Potential purchasers are warned that they must make their own enquiries as to the condition of the appliances, installations or of any element of the structure of fabric of the property.

Listed by

Mumbles

Simpsons

Reference: 21801192

EPC Rating & Upgrade Cost

Current rating: E

Potential rating: B

Inspection date: 24/02/2025

Current heating cost: £1,416/year

Potential heating cost: £721/year

Est. upgrade cost to C: £27,775

EPC E or below may face future regulation risk. Upgrading to C could improve long-term ROI.

Recommendations

Flat roof or sloping ceiling insulation (£850 - £1,500)
Room-in-roof insulation (£1,500 - £2,700)
Cavity wall insulation (£500 - £1,500)
50 mm internal or external wall insulation (£4,000 - £14,000)
Floor insulation (solid floor) (£4,000 - £6,000)
Solar water heating (£4,000 - £6,000)
Solar photovoltaic panels, 2.5 kWp (£3,500 - £5,500)

View full EPC on gov.uk

Flood risk

Zone: 1

Risk: Low

Job (default Low)

Floorplans

Floor Plan

EPC Graphs

EPC 1

FENSA Certificates

This property has 4 FENSA certificate(s) on record, indicating window/door installations by FENSA-approved installers.

FENSA Certificate #10823246

Property Details

Street: 1 Castle Street

Town: Mumbles

Postcode: SA3 4BH

Installation Details

Items: 1 window and 1 door

Certificate Issued: 16/02/2015

Work Completed: 07/02/2015

This certificate data was retrieved from FENSA's database

FENSA Certificate #13133772

Property Details

Street: 1 Castle Street

Town: Mumbles

Postcode: SA3 4BH

Installation Details

Items: 2 windows

Certificate Issued: 10/09/2018

Work Completed: 08/08/2018

This certificate data was retrieved from FENSA's database

FENSA Certificate #13043959

Property Details

Street: 1 Castle Street

Town: Mumbles

Postcode: SA3 4BH

Installation Details

Items: 1 window

Certificate Issued: 23/07/2018

Work Completed: 21/05/2018

This certificate data was retrieved from FENSA's database

FENSA Certificate #13929452

Property Details

Street: 1 Castle Street

Town: Mumbles

Postcode: SA3 4BH

Installation Details

Items: 1 window and 1 door

Certificate Issued: 15/01/2020

Work Completed: 19/12/2019

This certificate data was retrieved from FENSA's database

What is FENSA? FENSA (Fenestration Self-Assessment Scheme) is a government-authorised scheme that monitors building regulation compliance for replacement windows and doors. Certificates indicate that work was completed by FENSA-approved installers.

Price history

Event	Date	Price	% change
Sold	29/06/2000 (25 years ago)	£77,950	—

Source: HM Land Registry Price Paid Data. Crown copyright.

Sold Comparables

Same street and nearby sales within 0.25 miles (last 5 years). Data from Land Registry Price Paid.

Address	Price	Date	Type
12 CASTLE SQUARE, MUMBLES, SWANSEA, SA3 4BJ	£208,000	21/11/2025	Terraced
2 WINDSOR PLACE, MUMBLES, SWANSEA, SA3 4LG	£240,000	19/11/2025	Terraced
Same street 16 CASTLE STREET, MUMBLES, SWANSEA, SA3 4BH	£260,000	31/10/2025	Terraced
11 KINGS ROAD, MUMBLES, SWANSEA, SA3 4AJ	£280,000	23/07/2025	Terraced
23 OAKLAND ROAD, MUMBLES, SWANSEA, SA3 4AQ	£456,500	18/03/2025	Terraced
Same street 14 CASTLE STREET, MUMBLES, SWANSEA, SA3 4BH	£387,500	12/02/2024	Terraced
6 CHAPEL STREET, MUMBLES, SWANSEA, SA3 4NH	£340,000	09/10/2023	Terraced
Same street 11 CASTLE STREET, MUMBLES, SWANSEA, SA3 4BH	£325,000	27/09/2023	Terraced
4 GOWER PLACE, MUMBLES, SWANSEA, SA3 4AB	£271,000	20/09/2023	Terraced
8 QUEENS ROAD, MUMBLES, SWANSEA, SA3 4AN	£280,000	16/08/2023	Terraced
4 VICTORIA AVENUE, MUMBLES, SWANSEA, SA3 4NQ	£285,000	04/08/2023	Terraced
15 QUEENS ROAD, MUMBLES, SWANSEA, SA3 4AW	£240,000	27/04/2023	Terraced
22 CHAPEL STREET, MUMBLES, SWANSEA, SA3 4NH	£461,000	28/11/2022	Terraced
57 NEWTON ROAD, MUMBLES, SWANSEA, SA3 4BL	£325,000	25/11/2022	Terraced
14 GOWER PLACE, MUMBLES, SWANSEA, SA3 4AB	£392,500	14/11/2022	Terraced
3 CASTLE SQUARE, MUMBLES, SWANSEA, SA3 4BJ	£290,000	28/10/2022	Terraced
3 OAKLAND ROAD, MUMBLES, SWANSEA, SA3 4AQ	£396,000	06/10/2022	Terraced
8 DUNNS LANE, MUMBLES, SWANSEA, SA3 4AA	£300,000	22/09/2022	Terraced
Same street 2 CASTLE STREET, MUMBLES, SWANSEA, SA3 4BH	£341,000	13/09/2022	Terraced
7 OAKLAND ROAD, MUMBLES, SWANSEA, SA3 4AQ	£447,756	16/08/2022	Terraced
4 DUNNS CLOSE, MUMBLES, SWANSEA, SA3 4AF	£325,000	12/08/2022	Terraced
20 WOODVILLE ROAD, MUMBLES, SWANSEA, SA3 4AD	£345,000	12/08/2022	Terraced
114 CASTLE ROAD, MUMBLES, SWANSEA, SA3 5TA	£480,000	10/08/2022	Terraced
35 LANGLAND ROAD, MUMBLES, SWANSEA, SA3 4LX	£455,000	29/07/2022	Terraced

Street average: £328,375 (4 sales)

Area average: £340,888 (20 sales)

Capital growth trend

Land Registry outcode average: last 12 months vs 5y and 10y ago (from sold prices).

5y growth -16.6%

10y growth 52.4%

House Price Index (HM Land Registry — official index, not sold-price averages): Swansea. Series: Terraced. As of March 2026.

1y (index) 1.9%

5y (index) 26.7%

10y (index) 58.9%

Rental Range

Estimated market rent for Swansea. Low = conservative, Realistic = average, Optimistic = best case.

Low £752/mo

Realistic £835/mo

Optimistic £919/mo

Based on Local Authority from postcode lookup → Swansea.

Location

Map view View on Google Maps View on OpenStreetMap Street View SA3 4BH

Nearby

Nearest stations, universities and amenities (distance from property).

Type	Name	Distance
Shop	Oyster Gallery	0.0 miles
Shop	ROCO Mumbles	0.0 miles
Bus stop	Oystermouth Primary School	0.1 miles
Bus stop	Oystermouth RBL Club	0.1 miles
Hospital	Gower Physiotherapy Clinic	1.8 miles
University	Swansea University	4.0 miles
Train station	Swansea	4.4 miles
Train station	Gowerton	5.2 miles

Street-level crime

Category	Count
Violence and sexual offences	16
Shoplifting	8
Public order	4
Criminal damage and arson	3
Possession of weapons	3
Anti-social behaviour	2
Drugs	2
Vehicle crime	2
Burglary	1
Other theft	1
Total incidents	42

Within 1 mile during Mar 2026. Source: data.police.uk (England & Wales).

Schools nearby

Nearest open schools with Ofsted ratings (England). Closed schools are not shown. Data from Get Information about Schools and Ofsted.

Name	Type	Distance	Ofsted
Oystermouth Primary School	Other	0.0 miles	— (No rating)
Newton Primary School	Other	0.5 miles	— (No rating)
Grange Primary School	Other	0.5 miles	— (No rating)
St David's Catholic Primary School	Other	0.5 miles	— (No rating)
Y.G.G. Llwynderw	Other	0.6 miles	— (No rating)

Rental Comparables

Residential lets from OpenRent and Rightmove for the area (same bedroom count). Use to validate rent estimates. Student lets are excluded.

Title	Rent	Beds	Distance	As seen on
2 Bed Terraced House, Castle Square, SA3	£1,200/mo	2	0.02 miles	OpenRent
2 Bed Penthouse, Newton Road, SA3	£1,000/mo	2	0.03 miles	OpenRent
2 Bed Flat, Oystermouth Court, SA3	£995/mo	2	0.19 miles	OpenRent
2 Bed Flat, Parkside, SA3	£975/mo	2	0.24 miles	OpenRent
2 Bed Terraced House, Park Street, SA3	£2,600/mo	2	0.25 miles	OpenRent
2 Bed Maisonette, Mumbles Road, SA3	£1,200/mo	2	0.43 miles	OpenRent
2 Bed Terraced House, Hatherleigh Drive, SA3	£995/mo	2	0.54 miles	OpenRent

Average rent: £1,281/mo (7 listings)

Rent-driven metrics

Based on OpenRent comparables.

Rent ratio 0.48%

Max investor price (0.8%) £125,000

Target investor price (1%) £100,000

Gross yield 5.7%

Cost-to-rent ratio 17.5×

Monthly cashflow £50/mo 75% LTV, 3.95% APR (5yr fixed), 25yr term

Cash-on-cash ROI 1%

Rent ratio — Monthly rent ÷ purchase price (1% rule). 1%+ = strong, 0.8–1% = okay, <0.8% = weak for cashflow.
Max investor price — Rent ÷ 0.8%; the price at which rent would be 0.8% of price (Stoke-style target).
Target investor price — Rent ÷ 1%; the price at which rent would be 1% of price (strong cashflow band).
Gross yield — Annual rent as % of purchase price (no costs).
Cost-to-rent — Price ÷ annual rent (from OpenRent comparables). Under 14× = strong, 14–16× = acceptable, 17×+ = compressed.
Cashflow — Rent minus mortgage, 10% maintenance, £25/mo compliance. Assumes 75% LTV, 3.95% APR (5yr fixed), 25yr term.
ROI — Annual profit ÷ cash in (deposit + 4% purchase costs).