Marlborough, London, SW3 2JX

2-bedroom flat · SW3 2JX

549 sq ft1 bath

Asking

£850,000

For saleListed 33 days

Investor metrics

Opportunity summary

See Archie’s verdict, returns by strategy and what to check before viewing.

Start free Log in

About

The property

Extending to approximately 549 sq ft (51 sq m), the property offers well balanced accommodation comprising a bright reception room, a separate fitted kitchen, two bedrooms and a bathroom.

The principal bedroom is particularly generous in size, while the second bedroom provides an ideal guest room, study or nursery.

The apartment benefits from excellent natural light, making it an ideal London pied-à-terre, first home or investment opportunity.

Please note, we have not yet received confirmation from the client regarding certain information for this property.

You should ensure you make your own enquiries regarding material information about this property.

The Marlborough enjoys an enviable position on Walton Street, moments from the boutiques, cafés and restaurants of Chelsea Green, the King's Road and South Kensington.

Excellent transport links are available from South Kensington and Sloane Square stations, providing easy access across London.

Key information

Price per sq ft

£1,548/sq ft

Based on 549 sq ft (51 sq m)

Floor area

549 sq ft (51 sq m)

Reception rooms

Council tax band

Band F

Estimated ~£2,600/year

Tenure

Leasehold (964 years)

Local authority

Kensington and Chelsea

London Borough

County

Greater London Authority

Value & comps

What is it worth?

No previous sales on record.

Comparable salesNo comps yet

No comparable sales matched this property yet.

Returns

What does it return?

Set an offer; the calculator follows it.

Rent evidence

Rental benchmark

Nearby rental comparables

Loading rental comparables…

Local SA Market

Short-let restrictions apply

Greater London: an entire home can be let short-term for at most 9090 short-let nights plus a mid-term let for the rest of the year.
England: a national short-term let register is being introduced; register the property before letting.

We're still gathering serviced-accommodation data for this area.

Archie refurb estimate: a Pro feature

Model an offerFeeds your report · not a commitment

0.0% below asking

Model

Run the numbers.

BTL · HMO · BRRR · SA · Flip — editable, saved scenarios

Investment calculatorBTL · BRRR · HMO · Flip · SA · R2R — editable inputs, saved scenarios

Investment Disclaimer

This is not financial or investment advice. Prop AI Deals is not authorised by the Financial Conduct Authority (FCA) to provide investment advice.

All investment calculators, property analyses, and AI-generated insights are for informational purposes only. Property investment carries risk and may result in financial loss. All calculations should be independently verified and you should consult with FCA-authorised financial advisers before making any investment decisions.

Past performance does not guarantee future results. Tax implications vary by individual circumstances.

Mortgage

Deal

Is it a deal?

Archie’s verdict

Archie has scored this property.

Deal score · weighted

Weak signals — move on

Factor breakdown

BMV discountNot calculated, and not zero — there is no value estimate for this property to discount against.

0/25

Yield potential—

0/25

Motivation signalsNot enough data

0/25

Days on market33 days

8/25

—

Seller motivation

Not scored yet

Days on market33

Price reduction—

STC fall-through—

Back to market—

Agency change—

EPC rating—

Listing timeline

First listedListed at £850,00021 Sep 2026

Still activeDay 33 on marketToday

Strategy fit

No strategy scores available yet.

Article 4Not verified - check with the council

HMO Conversion Potential

Properties like this can earn 2–3x BTL yields when converted to HMO, with retrofit costs around £10k/room. Sign in to see the full tier, yield projection, and cost breakdown.

Tier, yield projection, and cost stack — Pro tier only.

PD Conversion Potential

Commercial properties like this can earn 30-50% higher yields when converted to residential under Class MA / Q / P / PA, with prior approval costing ~GBP 96/unit. Sign in to see the recommended route, yield uplift, and cost breakdown.

Tier, route, yield projection, and cost stack - Pro tier only.

BRRR Candidate

BRRR-suited properties can recycle 80-100% of investor capital on refi, leaving a high-yielding rental with most of the money out. Sign in to see the refurb cost stack, ARV projection, and refinance maths.

Tier, refurb cost, ARV, and refi maths - Pro tier only.

Plot subdivision potential

Detached + large garden = sub-division play. Pro tier unlocks the tier badge, plot size, uplift estimate, and regional land benchmark.

Lease extension arbitrage

Short-lease flats trade at deep discount, but extending under the 1993 Act often costs far less than the discount. Pro tier unlocks the tier badge, premium breakdown, long-lease ARV and arbitrage maths.