WHAT IS ORDNANCE DATUM NEWLYN? WHERE EVERY HEIGHT IN BRITAIN STARTS

Every level on a British survey drawing is measured from one fixed point: average sea level at a harbour in Cornwall, recorded more than a century ago. Here is where Ordnance Datum Newlyn came from, what “AOD” on your drawings really means, and why it matters to your project.
BEFORE THE NEW SHED GOES UP: THE SURVEYS A WAREHOUSE OR LOGISTICS SITE EXPANSION NEEDS FIRST

Extending a warehouse, adding loading bays or resurfacing a yard looks simple on a site plan. On the ground, levels, drainage and buried services decide what can be built and what it costs, so a warehouse extension survey has to come before the design.
TIGHT SITES, TOUGH QUESTIONS: CHOOSING A TOPOGRAPHICAL SURVEY FOR INFILL AND REDEVELOPMENT

Small infill plots and complex redevelopment sites leave very little room for error. Before you commission an infill topographical survey, or one for a redevelopment, it is worth knowing what these sites need and which questions sort a good survey from a cheap one.
HOW MUCH DOES A SURVEY COST? UK SURVEY PRICES FOR 2026

Spatial Dimensions publishes its survey prices. This guide sets out the published prices in one place, explains what moves a price up or down, and is honest about what a starting price does not cover. In short: In the UK, a measured building survey from Spatial Dimensions starts at £850 and most fall between £1,500 […]
HOW TO CHOOSE A UK MEASURED BUILDING AND TOPOGRAPHICAL SURVEY PROVIDER

An eleven-point checklist for architects and project managers choosing a UK measured building and topographical survey provider, with published prices and Spatial Dimensions’ answer to each criterion.
UP AND IN: WHAT LONDON’S NEW THINKING ON ROOFTOPS AND SMALL SITES MEANS FOR YOUR SURVEY

London is looking hard at the space above its existing buildings. A pattern book for roof extensions and a new small sites design code could make the principle easier to agree. The detail will still come down to a good rooftop extension survey of the building you’re adding to.
THE COMPLETE GUIDE TO TOPOGRAPHICAL SURVEYS FOR BUILDING DESIGN

guide to topographical surveys for building design, from £595. Spatial Dimensions georeferences every survey to OSGB36 National Grid and Ordnance Datum.
TOPOGRAPHICAL SURVEYS FOR MASTERPLANNING

Masterplanning fixes decisions that are expensive to unpick. Levels, boundaries, access points and drainage falls are set early, and every drawing after it inherits whatever the survey said. In short: A topographical survey for masterplanning is a measured record of a site’s levels, features and boundaries, drawn to scale and tied to a real-world coordinate […]
SPATIAL DIMENSIONS ACHIEVE CONSTRUCTIONLINE GOLD

At Spatial Dimensions, we pride ourselves on delivering accurate, reliable, and professional surveying services. Our work helps clients reduce risk and move projects forward with confidence. We are therefore delighted to announce that we have achieved Constructionline Gold accreditation. This achievement marks another important milestone for our business. It reflects our commitment to quality, compliance, […]
TACKLING THE SURVEY SKILLS GAP: INSIGHTS FROM KTUC25

Yesterday our Managing Director and TSA President Claire Fenwick joined a panel of leading voices at the KOREC Technology User Conference (KTUC25) to discuss one of the biggest challenges facing the geospatial industry the survey skills gap. The session brought together experts from across education, industry, and professional bodies, including Professor Jon Mills (Newcastle University), […]