Twickenham · South West London
Twickenham has some of the most attractive period housing in South West London and a planning regime to match. Most of the central and riverside stock sits inside a conservation area, and proximity to the Thames adds flood risk to the assessment. Getting a scheme approved here is as much about evidence as design.
Discuss Your Project
Working in Twickenham
Twickenham sits in the London Borough of Richmond upon Thames. The housing is largely Victorian and Edwardian terraces and villas through the centre, riverside houses along the Thames, and inter-war semis running toward St Margarets and Whitton. Plots are generally wider than inner London, which opens up rear extensions and wraparound extensions.
Loft conversions work well on the Edwardian and inter-war stock, but roof work is where Twickenham gets difficult. Inside the Riverside, Montpelier Row and St Margarets designations, dormers are tightly controlled and conservation rooflights are often preferred to a full dormer.
We manage design, planning and construction under one contract, which matters here because the detailing that wins approval has to survive into the build.
Services in Twickenham
Richmond upon Thames places real weight on design quality and assesses applications against the character of the immediate area. Materials, proportion and the relationship between old and new all get scrutinised.
Our design-and-build model means the specification shown in the approved drawings is what gets delivered on site.
Planning in Twickenham
Most period houses in central and riverside TW1 fall inside a conservation area. The main designations are Twickenham Riverside, Montpelier Row, St Margarets, East Twickenham and Strawberry Hill. Inside them permitted development rights are reduced and most external alterations need a full planning application.
Roof alterations attract the most attention. Dormers are tightly controlled and conservation rooflights are frequently the preferred solution. Flats and listed buildings always need full planning regardless of location.
The Thames frontage adds a further layer. Properties near the river may need a flood risk assessment submitted with the application. We check the flood zone alongside the conservation and listing position before any design work begins.
Cost Guide
Construction costs in Twickenham typically range from £2,600 to £4,000 per square metre depending on specification. A single storey rear extension usually costs between £70,000 and £145,000. Wraparound extensions generally run £95,000 to £185,000.
Loft conversions range from £55,000 to £110,000 depending on type. Work inside the conservation areas carries a premium of roughly 10 percent because of the materials and detailing required.
Professional fees add 10 to 15 percent, and a flood risk assessment is an additional cost on riverside sites. See our house extension cost guide for wider pricing.
Cost Calculator
Tell us the size, location and finish level. Our calculator returns a realistic range for your extension or loft conversion, with a detailed breakdown available.
Property Types
Twickenham's housing is varied for a relatively compact area. Victorian and Edwardian terraces and villas run through the centre, many with the wide plots and generous rear gardens that suit substantial extensions. Both sash and casement windows are common, reflecting the periods the stock dates from.
The riverside has larger and older properties, some of them listed, with Montpelier Row among the most architecturally significant streets in the borough. Toward St Margarets and Whitton the character shifts to inter-war semis on wider plots, which suit loft conversions and double storey extensions well. Strawberry Hill has its own strong and closely guarded character.
Nearby Areas
Alongside Twickenham we take on projects in St Margarets, East Twickenham, Strawberry Hill, Whitton and Teddington. We also work across Richmond, Barnes, Kingston and Putney.
Beyond South West London we cover all of Greater London and within a 30-mile radius, including Chiswick, Wandsworth, Wimbledon and Surrey.
Planning Checker
Enter your postcode and we check it against the national planning dataset for conservation areas, Article 4 directions and listed status, then tell you which rules apply to your project.
Common Questions
