JSTM Construction Emblem
JSTMLONDON

Construction & Refurbishment

GREATER LONDON & SURREY COVERAGE

House Extensions, Lofts & Renovations Across London & Surrey

Experienced London builders who understand local council planning rules, conservation guidelines, and building regulations inside out. From Kensington to Wandsworth and beyond.

location_on
Check Postcodearrow_forward
6 Prime

Specialist Boroughs

32 Boroughs

Covering All London & Surrey

100%

Building Regulations Compliant

4 Hours

Fast Quote Response

LOCAL BOROUGH KNOWLEDGE

Areas We Regularly Work In

Every London council has its own planning rules, conservation guidelines, and parking restrictions. Here is an overview of how we deliver successful projects across our main working areas.

Victorian stucco-fronted luxury townhouse in Kensington, London, with modern bronze Crittall rear extension
SW3, SW7, SW10, W8, W11, W14
verified140+ Delivered

Royal Borough of Kensington & Chelsea

Expert Builders in Kensington & Chelsea

Specialised in Grade II listed restorations, basement conversions, and structural alterations in historic townhouses and mews properties.

Approval RateStrong Council Track Record
Lead TimeTypically 4–6 Weeks
Recent Streets & AreasThe Boltons, Sloane Square, Holland Park, Chelsea Embankment
Key Competencies
Grade II Listed BuildingsQuiet Underpinning & PilingHeritage Lime PlasteringParty Wall Agreements
Book Kensington Site Visitarrow_forwardDedicated Site Manager
Luxurious Mayfair penthouse interior refurbishment featuring dark timber parquet herringbone flooring and bronze accents
W1, SW1, NW8, WC2
verified95+ Delivered

City of Westminster & Mayfair

Experienced with Mayfair & Belgravia Estates

High-spec refurbishments across Mayfair, Belgravia, and Marylebone apartments. We coordinate smoothly with major London estates, manage council access permits, and soundproof to the highest standard.

Estate ApprovalsExperienced with London Estates
Parking & PermitsCouncil Bays & TfL Permits Managed
Recent Streets & AreasMount Street, Eaton Square, Chester Square, Berkeley Square
Key Competencies
Full Apartment RefurbishmentAcoustic SoundproofingBespoke Joinery & RestorationsFreeholder & Estate Licences
Book Westminster Site Visitarrow_forwardDedicated Project Manager
Modern double-height glass kitchen pavilion in a Victorian terraced family residence in Battersea
SW11, SW12, SW18, SW4
verified80+ Delivered

Wandsworth, Battersea & Clapham

Family Home Extensions & Loft Conversions

Experienced builders for Victorian terraced homes around Wandsworth Common, Battersea Park, and Clapham. Specialists in open-plan rear extensions, glass side-returns, and mansard lofts.

Typical ScaleExtensions & Full Refurbishments
Planning RoutePermitted Development & Full Planning
Recent Streets & AreasNightingale Triangle, Spencer Park, Wandsworth Common, Prince of Wales Drive
Key Competencies
Side-Return ExtensionsMansard & Dormer LoftsUnderfloor HeatingBasement Conversions
Book Wandsworth Site Visitarrow_forwardFast Site Survey
Detached riverside luxury family home in Richmond upon Thames showcasing zinc clad architectural roof extension
TW9, TW10, KT1, KT2
verified60+ Delivered

Richmond upon Thames & Kingston

Riverside & Conservation Area Specialists

Experienced with riverside homes and conservation properties across Richmond and Kingston. Specialists in zinc-clad loft conversions, water management, and energy-efficient building.

Water AuthorityThames Water Build-Over Agreements
Energy EfficiencyHigh-Performance Insulation & Heat Pumps
Recent Streets & AreasRichmond Hill, St Margarets, Ham Common, Petersham Road
Key Competencies
Zinc Clad LoftsWaterproofing & TankingGlulam & Steel BeamsHeat Pumps & Eco Heating
Book Richmond Site Visitarrow_forwardSite Survey Available
Grand Georgian red-brick residence in Hampstead undergoing meticulous architectural restoration
NW3, NW1, N6
verified42+ Delivered

Camden, Hampstead & Highgate

Heritage Renovations in Camden & Hampstead

Careful Georgian and Victorian restorations, structural chimney removals, underpinning, and basement work near Hampstead Heath and Highgate.

Heritage GuidanceLocal Conservation & Trust Guidelines
Structural WorkFoundations & Steelwork Shoring
Recent Streets & AreasWell Walk, Church Row, Highgate West Hill, Primrose Hill Road
Key Competencies
Period Brickwork & PointingSteel Beam RSJ InstallationTimber Sash WindowsFoundations & Underpinning
Book Camden Site Visitarrow_forwardHeritage Craftsmen
Renovated Lion House in Peterborough Estate, Fulham, displaying refined architectural brickwork
SW6, W6, W12
verified75+ Delivered

Hammersmith & Fulham

House Extensions & Renovations in Fulham

Specialists in Fulham 'Lion Houses', bespoke pod lofts, structural alterations, and modern kitchen extensions with steel doors.

House StylesPeriod Terraces & Lion Houses
Local CouncilHammersmith & Fulham Council Liaison
Recent Streets & AreasPeterborough Estate, Hurlingham Road, Parsons Green, Brook Green
Key Competencies
Fulham Pod LoftsCrittall-Style Steel DoorsParty Wall SoundproofingModern Open-Plan Kitchens
Book Fulham Site Visitarrow_forwardLocal Site Team

Covering All 32 London Boroughs & Surrey

Fully insured and experienced builders working across Greater London and surrounding Home Counties.

Full Greater London Coverage
Barking & Dagenham
Barnet
Bexley
Brent
Bromley
Camden
City of London
Croydon
Ealing
Enfield
Greenwich
Hackney
Hammersmith & Fulham
Haringey
Harrow
Havering
Hillingdon
Hounslow
Islington
Kensington & Chelsea
Kingston upon Thames
Lambeth
Lewisham
Merton
Newham
Redbridge
Richmond upon Thames
Southwark
Sutton
Tower Hamlets
Waltham Forest
Wandsworth
City of Westminster
PROFESSIONAL SITE MANAGEMENT

Smooth Project Management & Clean, Organised Sites

Building in London requires careful planning. We take care of parking bay suspensions, skip permits, neighbour considerations, and delivery schedules so your project runs smoothly.

Main Office & Workshop
Vista Centre, Suite A204
50 Salisbury Rd, Cranford, Hounslow TW4 6JQ
Mayfair Central Operations Map
Site Management & SupportReal-Time Monitored
18mAverage Callout
100%Clean Fleet
ZeroProject Delays
local_parking

1. Parking & Skip Permits Managed

We arrange parking bay suspensions, skip permits, and delivery access directly with your local council, taking the hassle away from you.

volume_off

2. Polite & Considerate Builders

We keep work sites clean and tidy, use dust extraction, and stick strictly to permitted working hours to keep your neighbours happy.

engineering

3. Dedicated Site Manager

Every project is supervised by an experienced site manager who is on-site daily to inspect quality and answer your questions.

handshake

4. Party Wall & Building Control

We work alongside qualified party wall surveyors and local building control inspectors from day one, keeping everything fully compliant.

PLANNING & BUILDING ADVICE

Planning Permission & Approval Guidelines by Borough

Planning rules and approval times vary across London councils. Here is a quick guide to what to expect in key boroughs.

Borough / AreaBasement & Excavation RulesPermitted Development ScopePlanning ExperienceTypical Decision Time
Kensington & Chelsea (RBKC)Strict rules on depth and garden size; Construction Code audits apply.Article 4 restrictions apply in many conservation areas.check_circle15+ Years Working with RBKC8 - 10 Weeks
City of Westminster (WCC)Detailed structural method statements required.Estate licences required on private estates.check_circleRegular Council Liaison7 - 9 Weeks
Wandsworth & BatterseaStandard basement criteria; party wall surveyor agreements required.Broad scope; rear extensions and loft dormers frequently permitted.check_circlePrompt Decisions5 - 7 Weeks
Richmond upon ThamesFlood risk checks near the Thames; sensitive green spaces protected.Good scope for detached and semi-detached homes.check_circleHigh Approval Rate6 - 8 Weeks
Camden & HampsteadHydrology tests and tree protection orders often required near the Heath.Subject to Hampstead Garden Suburb Trust rules where applicable.check_circleHeritage Approved8 - 11 Weeks
Hammersmith & Fulham (LBHF)Basement policy applies; party wall agreements required.Strong support for pod lofts and rear kitchen extensions.check_circleRegular Council Liaison6 - 8 Weeks
shield
Need Advice on Planning Permission or Permitted Development?
We can review your property, explain what you can build under Permitted Development, and help with council planning applications.
Ask About Planning
home_workFMB Master Builder #88412verified_userTrustMark Govt Endorsedlocal_fire_departmentGas Safe RegisteredboltNICEIC Approved ContractorbalancePolite & Considerate Builders Schemepolicy£20M All-Risk Insured
FREE SITE SURVEY & CONSULTATION

Book a Free Site Survey & Fixed-Price Quote

Before you make any commitment, we visit your home to assess your property, discuss your ideas, check structural requirements, and provide a clear, itemised fixed-price quote.

call
Direct Landline
020 3576 2228

Mon - Sat: 07:30 - 18:30 GMT

WhatsApp Instant Chat
+44 7418 095006

Send drawings or photos for a quick response

mail
Email Enquiries
info@jstmconstruction.com

Drawings and tender packs reviewed within 24 hours

verified
Free, No-Obligation Consultation

Detailed Fixed-Price Quotation

Fully itemised breakdown of works and timeline

Request Your Free Site Visit

Fill in your details below and a member of our team will contact you within 24 hours to arrange a convenient site visit.

Your Privacy Matters: We keep all project drawings, contact details, and property information strictly confidential.