Chartered structural engineer calculations for house work across Richmond upon Thames: beams, lintels, pad foundations, wall removals, loft floors and underpinning. Eurocode-compliant and issued in the form Building Control expects.
For Richmond upon Thames homeowners in Georgian in Richmond Green and Twickenham; Edwardian villas in Barnes and East Sheen; 1930s semi-detached in Whitton; riverside cottages along the Thames, a structural calculations package is the full measured-survey-to-submission drawing set London Borough of Richmond upon Thames needs in order to determine an application: existing and proposed plans, elevations and sections at 1:100 and 1:50, a location and site plan, and the supporting statements the case officer asks for.
Prepared and reviewed by the chartered technologist team at Architectural Drawings London — MCIAT chartered, £2m PI insured.Last reviewed 2026-08-03.


Chartered structural engineer calculations for every residential intervention in Richmond upon Thames — steel beams, lintels, pad foundations, wall removals, loft floor joists, underpinning. Eurocode-compliant, Building Control-ready.
Housing stock in Richmond upon Thames: Georgian in Richmond Green and Twickenham; Edwardian villas in Barnes and East Sheen; 1930s semi-detached in Whitton; riverside cottages along the Thames.
Character: Highest conservation area coverage in London; Royal Parks and Thames corridor add heritage layers; design quality heavily scrutinised.
Steel beams and padstones for the wall you want gone: between kitchen and dining room, across two reception rooms, or the full width of a Richmond ground floor.
Ridge beam, purlin, dormer framing and an upgraded floor structure — the set behind any Richmond loft that is meant to be lived in.
Pad, strip or trench-fill foundations designed for the conditions on your plot. Near the river and on the clay, mature trees and old drain runs usually decide the depth.
Lintels over new window and door openings, specified in steel, concrete or timber, with the bearing at each end calculated rather than assumed.
Sequential underpinning, reinforced slabs and retaining walls for basement work, where the order of excavation matters as much as the reinforcement schedule does.
Every set goes out over the signature of a chartered engineer holding CEng MIStructE or MICE. No Building Control body in England queries that credential.

Single planning or regs submission.
Planning + building regs + structural.
Listed, conservation, complex sites.
Move the controls for an indicative figure. It anchors your budget — it is not a quote. Every project is priced after a free survey.
Build costs are separate and quoted by your contractor. See our published fees.
Each Richmond upon Thames district we work in, the housing behind it, and the office validating a structural package there. Statutory 2026 application charges fill the last column; engineering fees are quoted separately.
| Postcode | Area | Dominant stock | What it means for a structural calculation package |
|---|---|---|---|
| SW13 | Barnes | Georgian villas, Edwardian terraces | Barnes sits in SW13 and is Richmond's throughout. It is low ground near the river, where foundation depth and flood levels both feed into the calculations. |
| SW14 | Mortlake / East Sheen | Edwardian villas, 1930s semi-detached | A Mortlake or East Sheen address in SW14 is determined by Richmond, against the Local Plan policies covering that side of the borough. |
| TW1 | Twickenham | Georgian fragments, Victorian terraces, Edwardian villas | TW1 is Twickenham proper and belongs wholly to Richmond, so nothing has to be resolved about the determining authority before submission. |
| TW2 | Twickenham / Whitton | Georgian fragments, Victorian terraces, Edwardian villas | TW2 takes in Twickenham and Whitton, both Richmond's. The interwar and post-war houses here are structurally more forgiving than the riverside terraces. |
| TW9 | Richmond / Kew | Georgian terraces, Victorian villas | Richmond and Kew share TW9. The council determines here, and Kew Green is the designation most likely to affect what a roof or a rear elevation can do. |
| TW10 | Richmond / Ham | Georgian terraces, Victorian villas | TW10 covers Richmond and Ham without crossing a boundary: one council, one Local Plan, with Ham Common the likeliest designation to apply. |
| TW11 | Teddington | Edwardian villas, Victorian terraces | TW11 is Teddington alone. Richmond handles the package, and its officers work to the TW11 conservation area mapping. |
| TW12 | Hampton / Hampton Hill | Georgian villas, Edwardian terraces, 1930s semi-detached | Hampton and Hampton Hill lie entirely within TW12 and within the borough, so Richmond validates every package submitted from that postcode. |
This is an old borough at low density: 37.8% of the housing predates 1919, and only half its land carries buildings at all (OS Open Built Up Areas, 2 September 2026). Pitch, wall build-up and plot depth vary street by street, and every variation feeds through into the steel sizes and foundation depths we end up specifying.
Richmond upon Thames conservation designations: the council's list runs to 72, Kew Green, Hampton Wick and Twickenham Riverside included. What designation takes away is the permitted-development route: a £249 prior approval settled in roughly 6 weeks becomes a £548 householder application over 8. Of the 72, Ham Common is the one that reshapes the most schemes.
Richmond upon Thames permitted development status: there is no borough-wide direction from Richmond Council, so a structural calculation package at a SW13 address is normally still permitted development. We certify that with a £274 Lawful Development Certificate rather than leaving a Richmond upon Thames sale to argue it later.
Richmond upon Thames housing stock: Georgian in Richmond Green and Twickenham; Edwardian villas in Barnes and East Sheen; 1930s semi-detached in Whitton; riverside cottages along the Thames. Highest conservation area coverage in London; Royal Parks and Thames corridor add heritage layers; design quality heavily scrutinised. Read that before choosing a structural calculation package route in Richmond upon Thames — construction, not postcode, sets what is achievable. Richmond Council charges £548 for a householder application and has 8 weeks to determine it.
Sources for this Richmond upon Thames structural calculation package page: borough policies maps and conservation-area registers (2025–26), Royal Mail postcode district boundaries, the Town and Country Planning (Fees for Applications) (England) Regulations, the Town and Country Planning (General Permitted Development) (England) Order 2015 as amended, and the Party Wall etc. Act 1996.
What Richmond owners ask us before commissioning calculations. The short version: the age of the house decides more of the engineering here than the size of the scheme does.
Start a free quote →Cost follows the engineering. A single beam is the smallest job on the list. A loft or extension needing ridge beam, purlins, foundations and lintels together is a larger one. Basements and multi-storey work get individual quotes. Chartered sign-off comes with every level, and the fees page carries today's figures.
Yes. A load-bearing wall you remove or alter has to be replaced by something calculated to carry what it carried, and Building Control will not accept the work without a chartered engineer's signature on that calculation. Richmond's pre-1919 stock makes the check worth doing early — 37.8% of its 85,800 dwellings date from before 1919 on the VOA's March 2025 count, and in solid-wall construction of that age the load paths are rarely where a floor plan implies. Walls that look like partitions get checked before anything is cut.
Reckon on 1 to 2 weeks once the drawings and the site dimensions are with us. Where a Richmond site is already open and waiting on beam sizes, a set can be turned round in 3 to 5 working days at a premium.
Different documents entirely. A structural survey inspects what is already standing and reports defects, movement and subsidence. Calculations design what you are adding and demonstrate that it holds. Extensions and lofts need the second of those, and that is what we produce. Where the real question is the condition of the house, a surveyor is the right person and we will tell you so.
Yes. Where another practice has drawn the scheme, we can produce the calculations from their drawings alone. Where you want both, the Complete package prices drawings and engineering together and lands below the two bought apart.

If your property sits on a boundary, here are the neighbouring options.
Drawings, calculations and the Building Control submission all stay inside one chartered practice, so the engineering answers the scheme rather than a set of assumptions about it.
A construction-ready drawing package compliant with every Approved Document — Part A structure, Part B fire, Part L thermal, Part M accessib...
Every loft type across every Richmond upon Thames roof line — dormer, mansard, hip-to-gable, L-shape, Velux. LDC or full planning route, bui...
The whole spectrum — rear extensions, side returns, wraparounds, double-storey, basement digs. Planning-led design with detailed technical p...
Richmond upon Thames's most space-efficient loft solution when PD-route dormers are blocked. Our chartered team designs mansards that get ap...
Turn your unused Richmond upon Thames garage into a bedroom, home office or open-plan kitchen-diner. Planning route assessment, full buildin...
Full architectural technology service for basement digs and cellar conversions in Richmond upon Thames — structural underpinning design, wat...
Measured surveys across Richmond upon Thames — floor plans, elevations and sections to ±3mm accuracy. Leica Disto laser + BLK360 point-cloud...
End-to-end Party Wall Act 1996 service for Richmond upon Thames — Section 1, 3 and 6 notices, schedule of condition surveys, party wall awar...
London's most popular loft type — the full-width rear dormer. Planning or Permitted Development route assessed for your Richmond upon Thames...
Leave your number and an Architectural technologist will call you back within 30 minutes during working hours.
No obligation. No sales pressure. Just expert advice about structural calculations in Richmond upon Thames.
Free quote in 60 seconds. No hourly billing. MCIAT chartered.
Get my free quote →