BRICK.
St. Isan Road, Cardiff
CF149FJ
£450,000
Floor Plan
Tap to enlarge
Key numbers
Comp median
£322,500
+40% vs asking
Est. rent
£1,663/mo
4.4% gross yield
Condition
7/10
Good
LTT
£14,250
Running costs
£656/mo
2yr trend
+2.2%
fast liquidity
AI Summary
This is a generously proportioned, well-maintained semi-detached home in one of Cardiff's most affluent neighbourhoods, offering 185m² of living space in a quiet, low-crime area with strong local demand. The asking price of £450,000 sits notably above the 24-month comp median of £322,500, which warrants careful scrutiny — though the property's size (45% larger than typical), recent modernisation, and the premium Heath location may justify a portion of that premium. Buyers should commission an independent valuation and review recent comparable sales for similarly sized, modernised homes on St. Isan Road specifically before proceeding.
Comparable sales - 20 transactions · sector
Median ARV
£322,500
Min
£235,000
Max
£559,000
40 PARK AVENUE
£295,000
96 BIRCHGROVE ROAD
£290,000
18 AVONRIDGE
£310,000
173 CAERPHILLY ROAD
£345,000
8 BACTON ROAD
£235,000
~£1,663/mo
Based on 16 nearby lettings · range £1,300–£2,000/mo
Gross yield
4.4%
Median
£1,663
pcm
Low
£1,300
pcm
High
£2,000
pcm
£2,000pcm
£1,850pcm
£1,800pcm
£1,800pcm
£1,800pcm
£1,755pcm
£1,725pcm
£1,700pcm
Land Transaction Tax (LTT) · Wales
Purchase price: £450,000 · Effective rate: 3.2%
£14,250
No first-time buyer relief in Wales
Land Transaction Tax is managed by the Welsh Revenue Authority. Higher rates apply to additional properties (BTL, second homes). No first-time buyer relief in Wales.
Due within 14 days of completion. Your solicitor typically handles filing and payment.
Mortgage Brokers
Whole-of-market mortgage broker · Free initial consultation
UK-wide online mortgage broker · Free, whole-of-market
Solicitors & Conveyancers
Online conveyancing · Fixed fees from £595 · No completion, no fee
Verified partners selected for your area. Always compare multiple quotes.
AI photo assessment
Condition
7/10
GoodKerb appeal
7/10
Positives from photos
Cavity wall, as built, insulated (assumed)
Cosmetic - paint, carpets, minor fixes
Wall insulation: ~£700.
Transport
Nearby schools
School data from OpenStreetMap. Check Ofsted for official inspection ratings.
Deprivation decile 10 of 10 (1 = most deprived, 10 = least deprived). Classified as "Affluent"
Crime - 141 incidents (2026-02)
Crime data from Police UK. Covers incidents reported within approximately 1 mile.
Low coal mining risk
Estimated monthly costs
£656/mo
Real-world estimate (EPC figure of £1365/yr is below average for 185m²)
Estimated Band F from 185m² floor area
Regional average (Welsh Water)
Estimated UK average
Estimated from 185m² (Semi-Detached)
These are estimates based on averages and EPC data. Actual costs will vary depending on usage, provider, and local authority rates.
Moderate transaction volume in this area.
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BRICK. Property Intelligence
Report prepared 13 April 2026
Data sources
HM Land Registry, EPC Register, Environment Agency, Police UK, OpenStreetMap, planning.data.gov.uk, Coal Authority, SpareRoom, and portal listing data. Market statistics derived from 30M+ recorded transactions.
Important
This report is for informational purposes only and does not constitute financial, legal, or investment advice. Property values, costs, and market data are estimates based on publicly available sources. While we strive for accuracy, we make no warranties about the completeness or reliability of the information. Always conduct your own due diligence and seek independent professional advice before making property decisions. Brickstack Ltd accepts no liability for any loss arising from the use of this report.
BRICK. Property Intelligence
Data: HM Land Registry, EPC Register, Environment Agency, Police UK, OpenStreetMap, planning.data.gov.uk, Coal Authority. Market statistics from 30M+ transactions.
This report is for informational purposes only and does not constitute financial, legal, or investment advice. Property values, costs, and market data are estimates based on publicly available sources. Always conduct your own due diligence and seek independent professional advice before making property decisions. Brickstack Ltd accepts no liability for any loss arising from the use of this report.
14 April 2026 | brickstack.co.uk