Pre-Start Pack
- Building Control Application
- 10 Year Structural Warranty
- Design-Stage SAP Calculations
- Water Efficiency Calculations
- Overheating Assessment (Part O)
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Building consultancy for developers and homeowners
One point of contact for your whole project.
From planning and design through to testing, certification and building products, we coordinate 60+ specialist services for residential, commercial and development projects across the UK. One project manager, one quote, and every document kept together.
Quick quote: tap what you need
Continue with 0 selected →Pick one or more and we'll start your quote.
Trusted by developers including Mears, Metropolitan and Audley Group
Plot 3, Detached New BuildOne project manager · every stage tracked
Example
- ✓Building ControlFull plans approvedDONE
- ✓10 Year Structural WarrantyCover note issuedDONE
- ✓SAP, Design StagePart L · DER < TERPASS
- ✓Water CalculationsPart G · 110 l/p/dPASS
- Air Tightness TestEngineer bookedTUE
- As-Built SAP + EPCIssued after the air testNEXT
Your project manager4 of 6 complete
2017Established, based in Nuneaton
15+Years in the construction industry
60+Professional services
20+Building products at trade rates
1Point of contact for all of it
Some of the clients we've worked with over the years
Why One Stop Consult
Why developers and homeowners choose One Stop Consult
From planning and design through to testing, certification and building product supply, we give you one point of contact for a full range of specialist construction services.
Dedicated project manager
One point of contact to coordinate your services and product requirements from start to finish.
Vetted supply chain
A carefully selected network of trusted, experienced building professionals and specialist providers.
60+ professional services
Consultancy, design, testing and certification services, all coordinated in one place.
15+ years' experience
Proven industry knowledge across residential, commercial and mixed-use developments.
Clear golden thread
Quotations, reports, drawings and certificates kept together, so you have a clear record of your project.
Secure project portal
Access your quotations, reports, drawings and project documents whenever you need them.
Quick turnaround
Our portal and established supply chain mean quick quotations and faster design turnaround.
20+ building products
Core building products from trusted suppliers at competitive, discounted rates.
Bundled discounts
Better rates when you instruct several services or building products together.
How it works
One call instead of ten consultants
- 1
Tell us about the project
Two minutes online or one phone call. Send drawings if you have them.
- 2
Get one quote, one project manager
Every service priced together, with bundle discounts. Your project manager books and chases everything.
- 3
We run it to sign-off
We book, chase and track every stage behind the scenes, then hand you the reports and certificates ready for Building Control, your lender or your buyer.
Most requested
The services developers come back to us for
Book one on its own or bundle them. Either way you get one quote, one project manager and one point of contact until it's signed off.
10 or 15 year cover
10 Year Structural Warranty
Lender-recognised cover for new builds, self-builds, conversions and apartments. We arrange it and coordinate the inspections.
Check your warranty options
Building Regulations
Building Control
We manage your Building Regulations approval with a Registered Building Control Approver, from plans to completion certificate.
How it works Part L · L1A / L1BSAP Calculations
Design-stage and as-built SAP for new dwellings and conversions, with specification advice if you're near the line.
View service Domestic & commercialEnergy Performance Certificates
EPCs lodged on completion, ready for sale, letting or your Building Control sign-off.
View service Part G · 125 / 110 l/p/dWater Efficiency Calculations
Fittings-based water calcs to the standard or the optional planning requirement.
View service Phase 1 · ground riskGeotechnical Phase 1 Desktop Studies
Desk-based site history and contamination risk review, often needed to discharge a planning condition.
View service Part R · gigabit-readyConnectivity Plans
Broadband connectivity plans for planning and Part R, so new homes are ready for gigabit services.
View service FSO 2005Fire Risk Assessments
Fire risk assessments for communal areas, flats and commercial premises, plus fire strategies and door inspections.
View service Part LL1B Conversion SAP Calculations
SAP for conversions, change of use and extensions.
View service Part LL2A SBEM Calculations
SBEM and BRUKL reports for new commercial buildings.
View service Part LL2B SBEM Calculations
SBEM for commercial refits, extensions and change of use.
View service Part OOverheating Assessment
Part O simplified method or TM59 modelling.
View service Part OTM59 Overheating Assessment
Dynamic overheating modelling for homes and flats.
View service Part LAir Tightness Testing
Air tests with certificates for Building Control and SAP.
View service Part FExtract Ventilation Testing
Extract fan flow-rate testing for new builds.
View service Part ESound Insulation Testing
Pre-completion sound testing for flats and conversions.
View service DesignStructural Engineering & Calculations
Structural calculations and design for new builds and alterations.
View service Building productBeam & Block Flooring
Supply with layout drawings and calculations, plus thermal flooring, hollowcore, precast stairs, joists and roof trusses at discounted trade rates.
Get a flooring priceEvery stage of your project
Whatever stage you're at, we cover the next step
Pick a stage to see what we handle. We keep every report, drawing and certificate together as your golden thread, ready for Building Control, your warranty provider, a lender or a buyer.
Planning ApplicationsPlanning
Phase 1 Desktop StudiesGround
Contamination ReportsGround
Flood Risk AssessmentsPlanning
Ecology ServicesPlanning
Biodiversity Net GainBNG
ArchaeologyPlanning
Connectivity PlansPart R
Drone SurveysSurvey
Utility SurveysSurvey
Residential Noise SurveysPlanning
Energy StatementsPlanning
Sustainability StatementsPlanning
Architectural DrawingsDesign
Structural EngineeringDesign
Geotechnical Site InvestigationGround
Discharge of Planning ConditionsPlanning
Quantity SurveyingCost
Fire StrategiesPart B
Utility ApplicationsServices
Whole Life Carbon AssessmentCarbon
Building ControlBuilding Regs
10 Year Structural WarrantyWarranty
Insurance Backed GuaranteeIBG
L1A New Build SAPPart L
L1B Conversion SAPPart L
L2A SBEMPart L
L2B SBEMPart L
Water Efficiency CalculationsPart G
Overheating AssessmentPart O
TM59 AssessmentPart O
Beam & Block FlooringProduct
Thermal Insulated FlooringProduct
Hollowcore FlooringProduct
Precast Concrete StairsProduct
Floor JoistsProduct
Roof TrussesProduct
Cavity Wall InsulationProduct
Heating & Ventilation SystemsProduct
Fire Mist SuppressionProduct
Solar PV Supply & InstallProduct
EV Charging PointsPart S
Fire Stopping InspectionsPart B
Air Tightness TestingPart L
Extract Ventilation TestingPart F
Sound Insulation TestingPart E
Energy Performance CertificatesEPC
Specialist SnaggingHandover
Fire Risk AssessmentsFSO 2005
Fire Door InspectionsFire
Fire Suppression ServicingFire
External Wall SurveysEWS
Evacuation PlansFire
Can't see what you need? We probably do it. Ask us.
Get in touch
Services finder
Not sure what your project needs? Answer three questions.
We'll list the reports, tests and certificates that usually apply, in plain English. Then you can get one quote for the lot.
Bundle and save
Packages built around how developments actually run
Book the services you'd need anyway in one go. You get a bundle discount and one project manager who chases everything for you.
New Build Compliance Pack
- Everything in the Pre-Start Pack
- Air Tightness Testing
- Extract Ventilation Testing
- As-Built SAP and EPC
- Warranty and Building Control sign-off coordinated
Best valueQuote →
Planning Pack
- Planning Drawings and Application
- Geotechnical Phase 1 Desktop Study
- Connectivity Plan
- Flood Risk and Ecology, where needed
- Biodiversity Net Gain Assessment
Bundle discountQuote →
Recent projects
Real sites, signed off
What clients say
From first-time developers to national contractors
Having only just moved into property development, I was recommended to One Stop Consult by an NHBC builder. From the first conversation, the team put me at ease. Their support was a massive help on our first major development.
The team are prompt, professional and reliable. Having the resources available in one place is extremely useful and saves valuable time.
They dealt with everything from start to finish, including Warranty, Building Control, advice on service excavations and EPC documentation.
Developer knowledge centre
Know what's changing before it hits your site
155days until 24 March 2027
Is your site caught by the Future Homes Standard?
Answer four questions to see whether your homes are likely to stay on the current rules, then read the full guide.
Check your site →Building Safety Levy explained
Which new homes pay it, how it's calculated and when it's collected through Building Control.
Read the guide →Building Regulations commencement rules
What counts as "started" for each building, and why it matters when the regulations change.
Read the guide →About us
Straight answers
One Stop Consult was set up in 2017 so developers could stop chasing ten different consultants. Our team has more than 15 years in construction, and we work from Nuneaton for clients across the UK.
Meet the teamDo you do the work yourselves?
We coordinate a vetted network of accredited assessors, engineers, Building Control approvers and suppliers. You deal with one project manager and get one quote, and we keep every document together and send you what you need.
Can I book just one service?
Yes. Plenty of clients start with a single SAP or a warranty. If you need more later, it all goes on the same project file.
Do you cover my area?
We cover mainland UK. Desk-based services such as SAP, water calcs and connectivity plans are delivered remotely, and site visits are arranged through our national network.
How fast can you turn things round?
Most calculations come back within a few working days of receiving drawings. Tell us your deadline when you ask for a quote and we'll plan around it.
I've already started building. Is it too late for a warranty?
Not always. Some providers will consider part-complete projects, subject to inspection and extra evidence. Call us early so we can check what's still possible.
Where we work
Services by area
Based in Nuneaton and working nationwide. These are the cities we cover most often.
London and the South East
London
Birmingham and the West Midlands
Birmingham
Coventry and Warwickshire
Coventry
Leicester and Leicestershire
Leicester
Nottingham and Nottinghamshire
Nottingham
Greater Manchester
Manchester
Leeds and West Yorkshire
Leeds
Liverpool and Merseyside
Liverpool
Bristol and the South West
Bristol
Sheffield and South Yorkshire