Builders in Merton
Soraiz Builders carries out extensions, renovations and full-trade building work across Merton, from Victorian villas around Wimbledon Village to the 1930s semis of Raynes Park and Morden. Merton has 28 conservation areas and real flood risk along the River Wandle through Colliers Wood and Morden, so knowing the ground and water conditions on a specific street matters here. Call Shamraiz Hussain's team today and get a written quote within 2 hours.
Soraiz Builders provides extensions, renovations, plumbing, electrics and full building work across Merton, including Wimbledon, Colliers Wood, Raynes Park, Morden and Mitcham. Merton has 28 conservation areas, and parts of the borough near the River Wandle carry genuine, documented flood risk. Soraiz Builders offers a written quote within 2 hours of enquiry.
We respond within 2 hours during business hours.
Housing Stock by Area
What kind of houses does Merton have?
Merton was formed in 1965 from Wimbledon, Mitcham and Merton, and its housing stock still reflects those three separate origins rather than one uniform character.
- Wimbledon Village and Wimbledon Park (SW19): large Victorian and Edwardian villas, among the most expensive housing stock in the borough, many close to Wimbledon Common.
- Merton Park (SW19): the John Innes Estate, a garden suburb developed from the late 1800s, known for steeply-pitched roofs with Dutch-style gables, Arts and Crafts window frames and decorative brick and timberwork, now a conservation area.
- Colliers Wood and South Wimbledon (SW19): Edwardian terraces, many built with suspended timber ground floors, a detail extension design needs to account for. The Underground reached this area in 1926.
- Raynes Park and Morden (SW20, SM4): 1930s semi-detached suburbia built rapidly once the Northern line reached Morden in 1926, turning it from a farming community of around 1,000 people in 1900 into a residential suburb of over 12,000 within thirty years.
- Mitcham (CR4): a mix of Victorian terraces, 1930s housing and post-war estates, on ground once known for large-scale lavender and herb cultivation supplying London markets.
Common problems we see in Merton properties
Merton's biggest genuinely different risk factor is water, not just ground type, so we plan around the River Wandle specifically rather than treating flood risk as an afterthought.
- Standard London Clay shrinkage across most of the borough: Wimbledon, Raynes Park and much of Mitcham sit on London Clay with the usual seasonal shrink-swell pattern found across most of London.
- River Wandle flood risk in Colliers Wood, Merton Abbey and Morden: the Environment Agency maintains flood warning areas covering the Wandle at Wandsworth, Morden and Beddington, and Merton Council's own recent Section 19 flood investigation specifically covers Colliers Wood and Summerstown. Basement or lower-ground work anywhere near the river needs proper flood risk assessment, not assumption.
- Suspended timber ground floors in Colliers Wood's Edwardian terraces: many original ground floors here are suspended timber rather than solid concrete, a detail that changes how rear extensions and underfloor work get designed.
- Dense terracing and party walls: Colliers Wood, South Wimbledon and parts of Mitcham have terraces close enough together that most rear extensions and loft conversions fall within 3 metres of a neighbouring property, triggering the Party Wall etc. Act 1996.
Local Area
Local landmarks and transport links relevant to building work in this area.
- All England Lawn Tennis Club (Wimbledon Championships), SW19
- Wimbledon Windmill Museum, Wimbledon Common, SW19 (Grade II* listed, built 1817)
- Merton Abbey Mills, SW19 (William Morris and Liberty textile works, 1881-1982)
- Morden Hall Park (National Trust), SM4
- Merton Park and the John Innes Estate Conservation Area, SW19
Wimbledon (National Rail, District line, Tramlink), South Wimbledon (Northern line), Colliers Wood (Northern line), Morden (Northern line terminus), Raynes Park (South Western Railway), Mitcham Junction and Mitcham Eastfields (Tramlink)
Where We Work in Merton
Areas we cover across Merton
We work across the full London Borough of Merton, including:
- Wimbledon, Wimbledon Village and Wimbledon Park (SW19): Victorian and Edwardian villas close to Wimbledon Common and the All England Club
- Merton Park (SW19): the John Innes Estate garden suburb conservation area
- Colliers Wood and South Wimbledon (SW19): Edwardian terraces near the River Wandle and Merton Abbey Mills
- Raynes Park and West Wimbledon (SW20): 1930s semi-detached suburbia
- Morden (SM4): 1930s suburbia around the Northern line terminus and Morden Hall Park
- Mitcham (CR4): Victorian, 1930s and post-war housing on the borough's southern side
If you're unsure whether we cover your street, ask us as part of a free quote.
Check If We Cover Your Merton Street
Get a Free QuotePlanning & Conservation
What to check before starting building work in this borough.
London Borough of Merton (Merton Council)
Planning portal: View planning permission information
Planning permission and conservation areas in Merton
Merton has 28 conservation areas, including the John Innes Estate in Merton Park, which carries its own Article 4 Direction removing standard permitted development rights. Merton does not have a single borough-wide Article 4 Direction, but it does have several targeted ones: across the John Innes conservation area, across five employment and town centre locations restricting office-to-residential conversion, across seven southern wards restricting HMO conversion, and, most recently, an immediate Article 4 Direction covering small HMOs across 13 wards that took effect in March 2026. Most standard rear extensions and loft conversions outside a conservation area and outside these specific HMO restrictions keep normal permitted development rights, provided they meet national size and height limits.
Before planning any external work in Merton, check your address on Merton Council's planning pages to confirm your conservation area status and whether a specific Article 4 Direction applies. We do this on every Merton quote as standard.
Realistic planning timescales
Merton Council targets an 8-week determination period for householder applications, in line with the national standard, but in practice a straightforward householder application can take 12 to 16 weeks from instruction to final decision. We build that realistic timeline into every Merton quote rather than promising the statutory minimum.
What normally needs planning permission in Merton
- External alterations affecting the appearance of a house inside the John Innes conservation area
- HMO conversions within the affected wards under the March 2026 Article 4 Direction
- Office-to-residential conversion within the five designated employment and town centre locations
- Any work affecting a Listed Building, including the Grade II* listed Wimbledon Windmill
What usually doesn't
- Standard single-storey rear extensions outside a conservation area, within normal permitted development size limits
- Internal, non-structural work: new kitchen or bathroom in the same footprint, redecoration
- Like-for-like repairs outside Article 4 areas: matching roof materials, identical window replacements, repointing
Services We Provide Across Merton
Wimbledon Village's Victorian villas need kitchen extensions that respect original proportions, not a generic side-return box.
Raynes Park and Morden's 1930s semis need extensions sized to match the estate's original plot widths and rooflines.
Colliers Wood's Edwardian terraces often have suspended timber ground floors, a detail we plan bathroom layouts around properly.
Homes near the River Wandle in Colliers Wood and Morden need drainage designed around real, documented flood risk, not guesswork.
Merton Park's John Innes Estate needs render and timberwork repairs that match its original Arts and Crafts detailing.
Why Merton Homeowners Choose Soraiz Builders
Soraiz Builders & Services Ltd was founded in 2019 by Shamraiz Hussain and has completed 250+ projects across all 32 London boroughs. On a Merton job, that means checking conservation area and Article 4 status against all 28 designated areas, and factoring in the borough's genuine flood risk along the River Wandle in Colliers Wood and Morden, rather than applying one standard approach borough-wide. We also work around the Wimbledon Championships each summer, when road closures and resident parking permits affect Wimbledon Village, Wimbledon Park and parts of the town centre for the fortnight, so site access and deliveries get planned around it rather than getting caught out.
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Frequently Asked Questions
Answers to the questions homeowners in this area ask most.
Do I need planning permission for an extension in Merton?
It depends on the property. Merton doesn't have a borough-wide Article 4 Direction, so most single-storey rear extensions outside a conservation area keep normal permitted development rights within national size limits. Inside a conservation area with its own Article 4 Direction, such as the John Innes Estate in Merton Park, more work needs full planning permission. We check your exact status before recommending a route.
Is my street in a Merton conservation area?
Merton has 28 conservation areas, including the John Innes Estate in Merton Park and the Wimbledon Village conservation area. Check your exact address on Merton Council's planning pages, or ask us to check it as part of a free quote.
Why does the River Wandle matter for building work in Colliers Wood or Morden?
The Environment Agency maintains flood warning areas covering the River Wandle at Wandsworth, Morden and Beddington, and Merton Council's own recent flood investigation specifically covers Colliers Wood and Summerstown. Basement or lower-ground extensions near the river need a proper flood risk assessment as part of planning, not an assumption that standard drainage will do.
What's different about extending an Edwardian terrace in Colliers Wood compared to a Victorian villa in Wimbledon Village?
Many Colliers Wood Edwardian terraces have suspended timber ground floors rather than solid concrete, which changes how a rear extension's floor and damp-proofing get designed. Wimbledon Village's larger Victorian villas follow more conventional solid-floor construction. We treat these as genuinely different jobs rather than using one method borough-wide.
Do I need a Party Wall Agreement for building work in Merton?
Very likely in the borough's denser terraced streets. Colliers Wood, South Wimbledon and parts of Mitcham have terraces close enough together that most rear extensions or loft conversions fall within 3 metres of a neighbouring property. Notices need serving at least two months before work starts, and we handle this as part of the project.
Which parts of Merton do you cover?
We cover the full London Borough of Merton, including Wimbledon, Wimbledon Village, Wimbledon Park, Merton Park, Colliers Wood, South Wimbledon, Raynes Park, Morden and Mitcham, postcodes SW19, SW20, SM4 and CR4.
Does the Wimbledon Championships affect building work in the area?
Yes, if you're in or near Wimbledon Village, Wimbledon Park or parts of the town centre. Road closures run from around 8:30am to 11:30pm on tournament days each summer, and residents in the affected streets need an AELTC permit to park. We plan deliveries and site access around Championship fortnight rather than risk them clashing.
How long does planning permission actually take in Merton?
Merton Council targets 8 weeks to determine a standard householder application, in line with the national standard, but in practice a straightforward application often takes 12 to 16 weeks from instruction to final decision. We build that realistic timeline into every quote rather than promising the statutory minimum.
Get a Free Quote in Merton
Whether you're near All England Lawn Tennis Club (Wimbledon Championships), SW19 or elsewhere in Merton, Soraiz Builders provides building and renovation services throughout Greater London. A written quote follows within 2 hours.