The House CheckCheck before you offer

Flat 1,, 40 Smith Square, London, SW1P 3HL

Flat / maisonetteLeasehold
Last sale£800,000Apr 2009 · HM Land Registry
If it moved with City Of Westminster flat prices£1,278,000Aug 2026 · UK HPI
TenureLeaseholdHM Land Registry
TypeFlat / maisonetteHM Land Registry
MapN ↑119 m ↔
Postcode area · Contains OS data © Crown copyright and database right 2026 · Contains HM Land Registry data © Crown copyright and database right 2026

Before you offer

1 thing to check

1Leasehold: Lease documents needed

The lease term and charges affect future costs and mortgage options.

Ask the agent for the lease, remaining term, charges and planned works.

HM Land Registry · Apr 2009

Not covered here yet: surface water flooding, rivers and sea flooding, coal development high-risk area, conservation area, listed buildings nearby, article 4 direction, tree protection, radon, road noise, rail noise, airport noise, energy certificate. Your conveyancer’s local search covers the planning checks.

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Price

If it moved with City Of Westminster flat prices

£1,278,000

How does the asking price compare?

Enter a figure, or “offers over £500k”. Saved privately on this device

This home’s sale history

SoldPriceTypeTenureRecord
Apr 2009£800,000Flat / maisonetteLeaseholdA

Street sales

Same type and tenure, other homes in the last 36 months: £2,000,000 · 1 sales

AddressSoldPriceTypeTenure
Nobel House, 17 Smith Square, London, SW1P 3JRMar 2026£50,475,000Other propertyFreehold
Flat 2, 40 Smith Square, London, SW1P 3HLMar 2025£2,000,000Flat / maisonetteLeasehold
Flat 3, 37 Smith Square, London, SW1P 3HLSep 2022£1,200,000Flat / maisonetteLeasehold
18 Smith Square, London, SW1P 3HZDec 2021£48,100,000Other propertyFreehold
Flat 4, 37 Smith Square, London, SW1P 3HLJun 2021£1,140,000Flat / maisonetteLeasehold
Flat 3, 30 Smith Square, London, SW1P 3HFJun 2021£2,900,000Flat / maisonetteLeasehold
Flat 8, 37 Smith Square, London, SW1P 3HLJun 2021£680,000Flat / maisonetteLeasehold
Lower Ground, Ground And Second Floor, 34 Smith Square, London, SW1P 3HLMar 2021£161,000Other propertyLeasehold
Show all 42
AddressSoldPriceTypeTenure
Flat 2, 37 Smith Square, London, SW1P 3HLDec 2020£1,100,000Flat / maisonetteLeasehold
Flat 5, 37 Smith Square, London, SW1P 3HLNov 2020£1,010,123Flat / maisonetteLeasehold
8 - 9 Smith Square, London, SW1P 3HTApr 2020£6,257,500TerracedFreehold
36 Smith Square, London, SW1P 3HLNov 2019£14,857,600TerracedFreehold
Flat 3, 37 Smith Square, London, SW1P 3HLMay 2018£980,000Flat / maisonetteLeasehold
Flat 2, 40 Smith Square, London, SW1P 3HLMay 2017£1,600,000Flat / maisonetteLeasehold
Flat 1A, 30 Smith Square, London, SW1P 3HFNov 2016£1,975,000Flat / maisonetteLeasehold
Nobel House, 17 Smith Square, London, SW1P 3JRJan 2016£61,386,128Other propertyFreehold
1 Smith Square, London, SW1P 3HSOct 2015£3,051,000TerracedFreehold
Flat 2, 37 Smith Square, London, SW1P 3HLAug 2015£1,000,000Flat / maisonetteLeasehold
Flat 2, 37 Smith Square, London, SW1P 3HLNov 2014£403,279TerracedFreehold
4 Smith Square, London, SW1P 3HSJul 2014£4,250,000TerracedFreehold
Flat 3, 37 Smith Square, London, SW1P 3HLNov 2011£625,000Flat / maisonetteLeasehold
Flat 1, 40 Smith Square, London, SW1P 3HLJan 2011£1,430,000Flat / maisonetteLeasehold
2 Smith Square, London, SW1P 3HSJan 2011£1,750,000Flat / maisonetteLeasehold
2 Smith Square, London, SW1P 3HSJan 2011£1,750,000TerracedFreehold
Flat 2, 37 Smith Square, London, SW1P 3HLJun 2010£600,000Flat / maisonetteLeasehold
Flat 1,, 40 Smith Square, London, SW1P 3HLApr 2009£800,000Flat / maisonetteLeasehold
Flat 3, 37 Smith Square, London, SW1P 3HLJul 2007£515,000Flat / maisonetteLeasehold
Flat 4, 30 Smith Square, London, SW1P 3HFApr 2005£1,400,000Flat / maisonetteLeasehold
Flat 8, 37 Smith Square, London, SW1P 3HLMar 2005£325,000Flat / maisonetteLeasehold
Flat 5, 37 Smith Square, London, SW1P 3HLDec 2004£377,500Flat / maisonetteLeasehold
Flat 5, 37 Smith Square, London, SW1P 3HLAug 2002£355,000Flat / maisonetteLeasehold
8 - 9 Smith Square, London, SW1P 3HTJun 2002£2,555,089TerracedFreehold
Flat 3, 37 Smith Square, London, SW1P 3HLOct 2000£275,000Flat / maisonetteLeasehold
Flat 2, 30 Smith Square, London, SW1P 3HFOct 2000£880,000Flat / maisonetteLeasehold
Flat 3, 40 Smith Square, London, SW1P 3HLSep 2000£520,000Flat / maisonetteLeasehold
Flat 1, 37 Smith Square, London, SW1P 3HLApr 2000£555,000TerracedFreehold
Flat 5, 30 Smith Square, London, SW1P 3HFMar 2000£874,550Flat / maisonetteLeasehold
Flat 4, 30 Smith Square, London, SW1P 3HFAug 1999£825,000Flat / maisonetteLeasehold
Flat 4, 40 Smith Square, London, SW1P 3HLJan 1999£340,000Flat / maisonetteLeasehold
Flat 5, 37 Smith Square, London, SW1P 3HLJun 1997£147,500Flat / maisonetteLeasehold
4 Smith Square, London, SW1P 3HSFeb 1997£650,000TerracedFreehold
Flat 2, 37 Smith Square, London, SW1P 3HLJun 1995£133,000Flat / maisonetteLeasehold
All street records →

The land

Not covered here yet: surface water flooding, rivers and sea flooding, coal development high-risk area, conservation area, listed buildings nearby, article 4 direction, tree protection, radon. Your conveyancer’s local search covers the planning checks.

View building and land map ↑

The building

Unavailable

Poor insulation or an EPC E–G rating can mean higher heating bills.

Read the full certificate and ask about insulation and heating costs.

EPC

Floor area
Unavailable
Potential EPC band
Unavailable
Age band
Unavailable
Walls (certificate wording)
Unavailable
Roof (certificate wording)
Unavailable
Windows (certificate wording)
Unavailable
Heating (certificate wording)
Unavailable
Building height
Unavailable

EPC ·

Living

Broadband in the area

Postcode residential gigabit coverage: 100%

Full fibre in the local authority: 87.3%

Ofcom · Jan 2026

Schools nearby

DfE GIAS · Nov 2026 · Ofsted · Sep 2026

Area context

Deprivation decile (1 is most deprived within its nation): 7 · England 2025

Recorded police incidents: 1698

SW1P 3HL →

Before you offer

Viewing checklist

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Lease documents

Needs document · Saved privately on this device

Next steps

Ask a surveyor to confirm Level 2 or Level 3 after reviewing the age, condition and alterations.

Ask the conveyancer about local authority, drainage, environmental, flood and mining searches appropriate to this address.

Compare survey levels →

Questions for the agent

Questions for your surveyor and conveyancer

Ask the surveyor

Which survey level covers this home’s condition, damp, cracks and any alterations?

    Ask the conveyancer

    Which title, drainage and local searches are needed for this address?

    • Leasehold: Ask the agent for the lease, remaining term, charges and planned works.
    Sources and licences

    Contains British Geological Survey materials © UKRI 2026

    Radon Potential classification UK Health Security Agency © Crown copyright 2022

    © Environment Agency copyright and/or database right 2026. All rights reserved.

    INSPIRE conditions · Sources and licences