Glossary

Real estate & PropTech, defined

89 terms. Cap rate, NOI, IRR, MLS, IDX, RERA, BTR, AEO, RAG and more. Explained in plain English. Where useful, each term links into the Noseberry playbook for that area.

A

AEO(Answer Engine Optimization): Optimizing content so AI engines like ChatGPT, Perplexity, and Google AI Overviews cite your business in their answers. Differs from classical SEO in that the goal is citation, not click-through.
AVM(Automated Valuation Model): A statistical model that estimates a property's value using comparable sales, location data, and property attributes. Used by lenders, iBuyers, and brokerages.
Agentic AI: AI systems that take multi-step actions toward a goal. Calling tools, querying data, updating systems. Rather than just generating text. Operator-grade real-estate agents (lead qualification, valuation, fraud) are agentic.
ALS(Average Length of Stay): How long a tenant or resident stays on average. Coliving operators typically run 4–7 months ALS; BTR and PBSA run longer; vacation rentals run days.
Algolia: Hosted search-as-a-service. Used on listing portals + marketplaces where sub-100ms typeahead matters. We pair it with pgvector for AEO-eligible semantic search.
ATTOM: US property + parcel + transaction data provider. We integrate ATTOM feeds for valuation, comps, and listing-enrichment in US engagements.

B

BIM(Building Information Modeling): A 3D model-based process for designing, constructing, and operating buildings. Stores the geometry plus structured data on materials, systems, and lifecycle.
BTR(Build-to-Rent): Multi-family residential developments built specifically for long-term rental rather than sale, typically professionally managed across the entire portfolio.

C

CAC(Customer Acquisition Cost): The total marketing + sales spend required to acquire one new customer. The single most important number in performance marketing.
Cap Rate(Capitalization Rate): Annual net operating income divided by the property's market value. The standard yield metric for income-producing real estate.
Channel Partner: A third-party broker or sales channel that introduces buyers to a property developer in exchange for commission. Critical to the Indian and UAE residential market.
Coliving: A residential model where unrelated tenants share an apartment or building with private bedrooms and shared common spaces, typically on flexible leases.
Conversion Rate: The percentage of website or ad visitors who complete a desired action (book a viewing, submit a lead form, sign a lease).
CRE(Commercial Real Estate): Property used for business purposes. Office, retail, industrial, hospitality, multifamily. As opposed to single-family residential.
CRM(Customer Relationship Management): Software that tracks every interaction with a lead or customer through the sales lifecycle. Salesforce, HubSpot, and Zoho dominate the real estate space.
Commission Split: How sale or rental commission is divided between the brokerage, the agent, and any channel partner. Configured per agreement; the central data model in any broker-management platform.
CLS(Cumulative Layout Shift): Core Web Vital measuring how much the page jumps around as it loads. Target < 0.1; impacts both UX and SEO ranking.
CoreLogic: US real-estate data + analytics provider. AVM, comps, risk. Frequently paired with ATTOM in iBuyer + investment-platform builds.

D

DSCR(Debt Service Coverage Ratio): Net operating income divided by annual debt service. Lenders use it to measure a property's ability to cover its loan payments.
DLT(Distributed Ledger Technology): Onchain record-keeping technology underlying tokenisation. Polygon, Base, and Ethereum are common DLTs for real-estate tokenisation.

E

Escrow: A neutral third party that holds funds or documents during a property transaction until contractual conditions are met. Standard in US residential transactions.
eKYC(Electronic Know Your Customer): Digital identity verification. Passport / Aadhaar / national ID + liveness check. Standard for tenant onboarding, investor accreditation, broker partner approval.
Estated: US property data + parcel intelligence provider, often used by smaller PropTech operators as an ATTOM alternative for parcel-level data.

F

Fractional Ownership: A model where multiple investors own shares of a single property, splitting income and appreciation pro-rata. Increasingly tokenized on blockchain platforms.
Family Office: A private wealth management firm serving a single family (single-family office) or multiple families (multi-family office). A growing buyer of direct real estate and PropTech investments.

G

GLA(Gross Leasable Area): The total floor area available for tenant occupancy, excluding common areas. Standard measurement for retail and office leasing.
GRESB: A global ESG benchmark for real estate. Investors increasingly require GRESB scores from real estate funds and operators.
GTM(Go-to-Market): The strategy and execution plan for launching a real estate product (a development, a SaaS platform, a coliving brand) into a target market.
GEO(Generative Engine Optimization): Optimising for generative AI search interfaces (ChatGPT, Perplexity, Claude). Closely related to AEO; some practitioners use GEO and AEO interchangeably.

H

Headless CMS: A content-management system that exposes content via API rather than rendering its own templates. Sanity, Contentful, Strapi are common headless CMSs paired with Next.js.
Hostaway: Vacation-rental + serviced-apartment PMS. We integrate Hostaway when the operator's booking + channel-management is already mature on it.

I

IDX(Internet Data Exchange): A protocol that lets brokerage websites display MLS listings from across an entire region. Powers most US real estate search experiences.
iBuyer(Instant Buyer): A company that uses AVMs to make instant cash offers on residential property, then resells. Opendoor and Offerpad are the largest US iBuyers.
IRR(Internal Rate of Return): The annualized return on a real estate investment, accounting for the timing of cash flows. Standard underwriting metric for funds and syndicators.
INP(Interaction to Next Paint): Core Web Vital measuring responsiveness to user input. Replaced FID in 2024. Target < 200ms for good UX.

K

KPI(Key Performance Indicator): The handful of metrics that tell you whether a real estate business is healthy. Occupancy, NOI, CAC, payback, churn, etc.
KYC(Know Your Customer): The regulatory requirement to verify the identity of clients in real estate transactions, especially in cross-border or high-value deals.

L

Lead: Any prospective buyer, tenant, or investor who has expressed interest. The atomic unit of real estate marketing pipelines.
LTV(Lifetime Value (or Loan-to-Value)): Lifetime value: the total revenue a customer generates over their full relationship. Loan-to-value: the loan amount as a percentage of the property's appraised value.
LLM(Large Language Model): A neural network trained on vast text corpora to produce natural-language output. GPT-4, Claude 3.5, and Gemini are LLMs.
Lighthouse Score: Google's open-source page-quality score across performance, accessibility, best practices, and SEO. We target ≥ 95 across all four categories on every shipped page.
LCP(Largest Contentful Paint): Core Web Vital measuring how fast the largest above-the-fold element renders. Target < 2.5s for good UX; < 1.5s for top-quartile.

M

Marketplace: A two-sided platform connecting property owners/sellers with buyers/tenants. Zillow, Rightmove, MagicBricks, and 99acres are the largest examples.
MLS(Multiple Listing Service): A regional database of properties for sale, shared among member real estate brokers in the US and Canada. The single source of truth for residential inventory.
MQL(Marketing Qualified Lead): A lead whose engagement signals (page views, downloads, form submissions) indicate they meet the criteria to be passed from marketing to sales.
MVP(Minimum Viable Product): The smallest version of a PropTech product that delivers measurable value. Standard early-stage build target for funded startups.
MISMO(Mortgage Industry Standards Maintenance Organization): Industry body governing mortgage data exchange standards. Critical for any PropTech platform that touches the loan lifecycle.
Mews: Hospitality PMS popular with serviced-apartment + boutique-hotel operators. We integrate Mews on hospitality-led builds.

N

NOI(Net Operating Income): Property revenue minus operating expenses, before debt service and capital expenditure. The core income metric for commercial real estate.
Next.js: React-based framework from Vercel. Default web framework for Noseberry. Server components, streaming, ideal Lighthouse, great SEO/AEO surface.

O

Occupancy Rate: The percentage of available units (rooms, apartments, square footage) that are currently leased. A leading indicator of asset performance.

P

PBSA(Purpose-Built Student Accommodation): Residential developments designed and operated specifically for university students, with shared amenities and term-aligned leases.
PMS(Property Management System): Software that runs the day-to-day operations of a property. Leasing, billing, maintenance, accounting, tenant communication.
PropTech: Technology applied to real estate. Spans listing platforms, PMS, smart-building tech, AVMs, mortgage tech, fractional investing, and more.

R

RAG(Retrieval-Augmented Generation): An AI architecture that grounds an LLM's response in a private knowledge base, so it can answer from your own data with citations and an audit trail.
RBI(Reserve Bank of India): India's central bank. Sets compliance rules for any PropTech platform handling Indian payments, credit, or cross-border real estate transactions.
RERA(Real Estate Regulatory Authority): The regulatory framework governing real estate transactions in India and the UAE. Mandatory developer registration, escrow, and disclosure rules.
REIT(Real Estate Investment Trust): A publicly-traded company that owns and operates income-producing real estate, distributing 90%+ of taxable income to shareholders.
RETS(Real Estate Transaction Standard): An older XML standard for exchanging MLS data, gradually being replaced by the RESO Web API.
ROI(Return on Investment): The gain or loss on an investment as a percentage of cost. Used loosely in real estate marketing. IRR is the more rigorous measure for property deals.
RESO(Real Estate Standards Organization): Industry body that maintains the RESO Data Dictionary. The standard schema MLSs use to share listing data across systems.
React Native: Framework for building native iOS + Android apps from a single React codebase. Default for our resident apps + broker apps.

S

SaaS(Software-as-a-Service): Software delivered over the internet on a subscription basis. The dominant business model for PropTech platforms.
SEBI(Securities and Exchange Board of India): The Indian capital markets regulator. Sets rules for REITs, fractional ownership platforms, and tokenized real estate offerings.
SEO(Search Engine Optimization): Optimizing a website to rank in organic Google results. The default acquisition channel for most real estate businesses.
SLA(Service Level Agreement): A contractual commitment to a level of service uptime, response time, or quality. Standard in PropTech vendor contracts.
SQL(Sales Qualified Lead): A lead that sales has accepted as a real opportunity worth pursuing. The handoff threshold from marketing to sales.
Stamp Duty: A tax on property transfers, levied by state or national governments. A material line item in Indian, UK, and Australian residential transactions.
Stripe: The default payments infrastructure for global PropTech platforms. Supports subscriptions, marketplaces, and cross-border payouts.
Syndication: Pooling capital from multiple passive investors to acquire a real estate asset, typically structured as an LLC or LP managed by a sponsor.
Syndicator: An operator who pools capital from limited-partner investors to acquire and manage a real estate asset. Earns sponsor promote on returns above a hurdle rate.
Schema.org: Shared vocabulary for structured data. Used by Google, Bing, and AI crawlers to understand page content. Real estate platforms use Service, RealEstateListing, LocalBusiness, FAQPage, and HowTo schemas heavily.
Sanity: Headless CMS we deploy when content + multi-locale demands a richer authoring surface than file-based content allows.

T

Tenant Experience(TX): The end-to-end experience of living, working, or staying in a property. Typically delivered through a branded mobile app, smart access, and in-unit services.
Title Insurance: Insurance protecting buyers and lenders against defects in a property's title. Standard in US transactions; less common in India and the UAE.
Tokenization: Issuing fractional ownership of a real estate asset as digital tokens on a blockchain. Regulated under SEC, MAS, or local equivalents.
Turnover: The rate at which residents or tenants leave and are replaced over a time period. Lower turnover = lower acquisition cost; the operator's central retention KPI.

U

Underwriting: The process of evaluating a real estate deal's risk and return. For lenders, syndicators, or insurers. Increasingly automated with AI copilots.
Unit Mix: The breakdown of unit types (studio, 1BR, 2BR, etc.) in a multifamily or coliving development. Drives both pricing and marketing strategy.

V

Vacancy Rate: The percentage of units in a property or market that are currently unoccupied. The inverse of occupancy rate.
Valuation: An estimate of a property's market value, produced by an appraiser, an AVM, or a broker. Foundational to financing, taxation, and sale.
Vibration(Voice + Brand Identity): The total sensory expression of a real estate brand. Name, logotype, palette, photography, voice, and digital experience.
Vintage: A real estate cohort grouped by acquisition year. Used by funds and syndicators to compare performance across market cycles.

W

Walkscore: A 0–100 score measuring how walkable an address is. A key feature in residential listings and a meaningful driver of rent.
Webhook: A real-time HTTP callback that fires when an event happens in one system (lead created, payment received) and notifies another. Glue between PropTech platforms.
White-label: A product built by one company and rebranded for use by another. Common pattern for PropTech tools sold to brokerages and developers.
Webflow: Visual web-builder SaaS. Common starting point for real-estate operators; we typically migrate operators off Webflow when they need a proper booking engine + custom logic.

Y

Yield: The annual income produced by a property, expressed as a percentage of its value or purchase price. Cap rate is one form of yield.

Z

Zoning: The legal classification of a parcel of land that determines what can be built or operated on it. The primary constraint in real estate development.

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