StreetCeiling uses AI to analyse any address in England — pulling Land Registry sales, local planning decisions, and current build costs — then delivers a clear report on what the property is worth, what it could be worth, and exactly what it would take to get there.
✓ Instant results · ✓ Real Land Registry data · ✓ Local planning precedents included
Join 1,200+ homeowners and agents who’ve analysed a property with StreetCeiling
Analysing planning precedents…
Finding your property
Checking planning records
Calculating valuation
Who it’s for
Built for everyone with a stake in property
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Homeowners
Find out if extending, renovating, or selling makes the most financial sense. Our AI calculates the ROI on every option using real comparable sales — before you spend a penny.
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Buyers
Understand the real potential of any property before you make an offer. See the development upside, the planning route, build costs, and the net gain or loss on every scenario.
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Agents, Brokers & Lenders
Instant development intelligence on any address in England. Support valuations, advise clients with data-backed insights, and assess the full potential of any asset.
“We used StreetCeiling before making an offer. It told us the loft conversion would add £180k — we negotiated accordingly.”
“I send every new instruction through StreetCeiling. It gives vendors a realistic picture of their property’s potential in minutes.”
“As a broker, I need to understand the asset’s upside quickly. StreetCeiling gives me that without commissioning a full survey.”
Your report
What your report includes
Current estimated value
AI-modelled from comparable Land Registry sales, benchmarked to same-type properties on your street.
Development scenarios
Loft, extension, conversion — each with value uplift, build costs, and net ROI.
Permitted Development checker
Your property assessed against PD rules — do you need planning permission for each scenario?
Local planning precedents
Every approved and refused application within 300m, classified by type so you see what your council actually approves.
Project timelines
Realistic programmes from decision to completion, calibrated to your scenario and region.
Recommended next steps
AI-written guidance specific to this property — not a template, not generic advice.
What we offer
One report. Every angle covered.
The StreetCeiling Property Report gives homeowners, agents, and lenders everything they need — in one place.
Core report
Property Report
Current value, development potential, planning routes, build costs, and recommended next steps — specific to this address.
Estimated value with comparable sales map
Development scenarios with ROI and net gain
Permitted Development checker
Local planning precedents within 300m
Project timelines and professional fee estimates
Shareable via unique link
Included with every analysis →
For leaseholders
Lease & Title Check
Catch problems before they cost you.
Upload your lease or Land Registry title
Identifies years remaining and ground rent terms
Flags any covenants restricting development or alterations
Highlights anything affecting mortgage, resale, or freeholder consent
Plain English summary of what it means practically
Add to your analysis →
For developers
Draft Planning Application
Everything needed to submit your application.
Covering letter addressed to your council
Planning statement citing specific local approved precedents
Design and access statement
Step by step submission guide for your council
Saves £500–2,000 in consultant fees
Add to your analysis →
The engine
Powered by AI — grounded in real data
StreetCeiling combines large language models with official government datasets. The AI doesn’t guess — it reads, cross-references, and calculates from verified sources.
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Land Registry sales data
Every residential transaction in England since 1995. The AI selects comparable sales by property type, proximity, and recency to build an accurate valuation model for your address.
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Planning application records
Thousands of planning decisions from your local authority. The AI classifies each application by type — loft, rear extension, change of use — and calculates approval rates specific to your street.
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EPC & property attributes
Floor area, property type, construction date, and energy rating from the national EPC register. The AI uses these to calibrate build costs and identify what’s already been done to the property.
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AI valuation engine
The AI models post-development value by applying marginal uplift analysis to each scenario — accounting for property type, regional build costs, and the street ceiling from real sold prices.
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AI-written recommendations
Every report section — executive summary, PD assessment, scenario analysis, next steps — is written by AI specifically for this property. No templates, no copy-paste.
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Instant — not days or weeks
Traditional surveyors take days. StreetCeiling’s AI runs the full analysis in seconds — comparable sales, planning precedents, build costs, and a written report — the moment you enter an address.
Step 2 of 3
Confirm your property
Check the details below are correct. You can edit the floor area if you know the exact size.
Address—
Council—
Type—
Floor area
sq ft
Property condition
This affects your valuation — condition relative to comparable sales on your street.
Which floor is your flat on?
What’s already been done?
Select any extensions or conversions that have already been built. This helps us give you accurate recommendations.
How much garden do you have?
Rear garden depth is the biggest factor in what’s achievable for a property like this.
We have this from a previous search — confirm or update below.
Upload a floor plan
If you have a floor plan we can extract the property size for a more accurate valuation.
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Drop a file here or browse
PDF, JPG or PNG — max 10 MB
sq ft
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Enter an address above to begin
We'll analyse planning decisions in your area and show you what extensions and conversions are likely to be approved.
How it works
AI-powered intelligence, simplified
01
Enter an address
We instantly pull EPC data, Land Registry records, and local planning history.
02
Confirm your property
Check the pre-filled details and tell us the condition. Takes 30 seconds.
03
AI runs the analysis
Comparable sales, development scenarios, planning routes, build costs — calculated for this specific address.
04
Your report is ready
A clear, data-backed picture of what the property is worth, what it could be worth, and what to do next.
2,400+ properties analysed across England
Updated daily
Ready to see what any property is really worth?
Enter any address in England to get started — results in seconds.