Two-storey brick cottages,
diamond-pattern slate.
SW14 · Richmond upon Thames · FENSA Reg 40373
Glazing for Mortlake properties
- Postcodes coveredSW14
- CouncilLondon Borough of Richmond upon Thames
- Distance from base2.8 miles from Isleworth
- Conservation areas6 covering SW14 Mortlake
- FENSA registeredReg 40373, self-certified installations
Conservation areas
"Mortlake with East Sheen" is an electoral ward, not a conservation area, and North Worple Way is a street carrying an Article 4 direction inside Mortlake no. 33. Check the address itself on Richmond's Article 4 register.
Housing stock in Mortlake
Richmond's Mortlake appraisal records that surviving development mostly dates from the 18th and 19th century, with matching terraces of two-storey brick cottages on Fitzgerald Road and Alder Road and ground-floor bay windows with decorative metalwork among the original details.
| Era | Where | Recommended products |
|---|---|---|
| 18th and 19th century core | The older surviving fabric identified in the Mortlake appraisal | uPVC Sash Window, Aluminium Heritage Window |
| Matching cottage terraces | Fitzgerald Road and Alder Road - two storeys, brick | uPVC Sash Window, uPVC Flush Casement |
| Bay-fronted Victorian | Ground-floor bays with decorative metalwork, diamond-pattern slate roofs | uPVC Bay & Bow, uPVC Casement |
| Later infill and rear | Garden elevations and 20th-century stock off the High Street | Aluminium Casement, Aluminium Flush Casement |
Frequently asked about Mortlake
Is "Mortlake with East Sheen" a conservation area?
No, it is a ward name. The designation covering the historic core is Mortlake no. 33. The others in SW14 Mortlake are Mortlake Green no. 51, Queen's Road Mortlake no. 35, Sheen Lane Mortlake no. 70, Thorne Passage Mortlake no. 16 and White Hart Lane Mortlake no. 53.
Does North Worple Way have an Article 4 direction?
It appears on Richmond's Article 4 register as a street inside the Mortlake conservation area. The council spells it "North Worpole Way" on its own register and Article 4 page, which is worth knowing if you are searching the list. Directions apply to specific house numbers, so check yours.
Why does Mortlake get singled out on uPVC?
Mortlake no. 33 is one of only four Richmond conservation area statements - with Barnes Green, Teddington High Street and Twickenham Riverside - that names the use of poor quality products including UPVC as a specific pressure on the area. Most other statements carry only a generic warning about unsympathetic alterations.
Can I keep my original sash boxes and just improve the glazing?
Often yes, and it is the route Richmond prefers. The council's FAQ confirms double and triple glazing can go into timber frames while keeping a consistent appearance, and its SPD says the best course of action wherever possible is to repair rather than replace.
Do you cover East Sheen from the same team?
Yes. East Sheen has its own separate conservation areas - Christchurch Road no. 13, East Sheen Avenue no. 52, Model Cottages no. 34 and Sheen Lane no. 64 - and its own page on this site.
The Mortlake designations, accurately
Mortlake is in the London Borough of Richmond upon Thames, which has 85 conservation areas and around 118 street-level Article 4 directions covering roughly 1,891 properties. The council's own wording is that a direction requires planning permission for works "including but not limited to" extensions, new doors and windows, painting and rendering brickwork, removing chimneys and replacing front gardens.
Crucially, Richmond states that "some of the directions may only cover certain parts of the conservation area and may be limited to certain works". Coverage is by street and house number. That means two neighbours on the same Mortlake road can face different rules, and it is why we check the register at survey rather than assuming.
The governing policy is Local Plan Policy 29 on designated heritage assets, adopted October 2025. The practical detail is in the House Extensions and External Alterations SPD (2015), sections 5.4 and 5.5.
Before you order in SW14
- Planning authorityLondon Borough of Richmond upon Thames
- Governing policyLocal Plan Policy 29, Designated Heritage Assets
- Article 4 basisGPDO 2015 Schedule 2 Part 1 Class A, per street
- Named uPVC pressureMortlake no. 33 appraisal
- FlatsNo permitted development rights for windows or doors
If your replacement is close to the original but you are not certain it counts as like-for-like, Richmond recommends applying for a Lawful Development Certificate rather than assuming.